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Power conservation

Subclass of:

713 - Electrical computers and digital processing systems: support

713300000 - COMPUTER POWER CONTROL

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
713323000 Active/idle mode processing 626
713324000 By shutdown of only part of system 262
713322000 By clock speed control (e.g., clock on/off) 209
713321000 Programmable calculator with power saving feature 29
Entries
DocumentTitleDate
20080270810Electronic device with flexible processing system - An electronic device comprising a host module and a wireless module each comprising a processing unit, wherein the electronic device is configurable to be operated in a low processing mode by performing processing functions for the electronic device using the processing unit of the wireless module.10-30-2008
20130031389Computer System with Over-Subscription Mode of Power Supply - A computer system with an over-subscription mode of power-supplying device is provided. The computer system includes at least a power-consuming device, at least a power-supplying device, and a power management controller. The at least a power-supplying device supplies power to the at least a power-consuming device. The output power of the at least a power-supplying device has a maximum label value, a safety limitation value higher than the maximum label value, and an over-subscription zone between the maximum label value and the safety limitation value. The power management controller is coupled with the at least a power-supplying device and the at least a power-consuming device that controls the power consumption of the at least a power-consuming device. If the output power exceeds the maximum label value to enter the over-subscription zone, the power management controller will lower the power consumption of the power-consuming device(s).01-31-2013
20130031388ZERO POWER HIBERNATION MODE WITH INSTANT ON - Systems, methods, and other embodiments associated with a processor configured with a zero power hibernation/sleep mode during which the processor consumes no power are described. According to one embodiment, a processor includes a power management logic. The power management logic is configured to receive a control signal requesting the processor to transition into a power saving mode that reduces power to the processor while retaining a current state of the processor. The power management logic is configured to store, in response to the control signal, a current state of components of the processor in a non-volatile memory. The power management logic is configured to adjust power to the processor to a zero power mode to place the processor into the power saving mode, wherein during the zero power mode the processor is receiving no power.01-31-2013
20120204043Information Processing Apparatus, Method Of Controlling Information Processing Apparatus, And Computer Program Product - In an embodiment, an information processing apparatus has a low power mode. The information processing apparatus includes: a communication control unit; a table that stores identification information identifying an external device in association with an operation need/no-need information representing an operation need/no-need of the external device in the low power mode; a power supply control unit that acquires identification information from an external device at a time of transition to the low power mode, and performs control such that supply of electric power to the communication control unit is to be restricted when determined that the operation need/no-need information corresponding to the identification information represents the operation no-need based on the table, and such that supply of electric power to the communication control unit is continued when determined that the operation need/no-need information represents the operation need based on the table.08-09-2012
20120173904METHOD, APPARATUS, AND SYSTEM FOR ENERGY EFFICIENCY ANDENERGY CONSERVATION INCLUDING DETERMINING AN OPTIMALPOWER STATE OF THE APPARATUS BASED ON RESIDENCY TIME OFNON-CORE DOMAINS IN A POWER SAVING STATE - A processor may determine the actual residency time of a non-core domain residing in a power saving state and based on the actual residency time the processor may determine an optimal power saving state (P-state) for the processor. In response to the non-core domain entering a power saving state, an interrupt generator (IG) may generate a first interrupt and the device drivers or an operating system may use the first interrupt to start a timer (first value). In response to the non-core domain exiting the power saving state, the IG may generate a second interrupt and the device drivers or an operating system may use the second interrupt to stop the timer (final value). The power management unit may use the final and the first value to determine the actual residency time.07-05-2012
20090193274System And Method of Coherent Data Transfer During Processor Idle States - Systems and methods of managing power provide for placing a processor in a non-snoopable state, where the processor is associated with a system memory. One or more data transfers between a controller and the system memory can be serviced while the processor is in the non-snoopable state. In one embodiment, it is determined that the processor has flushed an internal cache of the processor to the system memory before placing the processor in the non-snoopable state.07-30-2009
20090193273ELECTRONIC CONTROL SYSTEM WITH CONTROLLERS AND POWER SUPPLY UNIT - An electronic control unit has a primary microcomputer producing a supply control signal or a cutoff control signal, a secondary microcomputer, and a power supply unit receiving the signal from the primary microcomputer through a signal line. Each signal has a level changing with time. The supply unit detects a level change of the signal line as a line transmission signal and performs pattern judgment for the level pattern of the line transmission signal. When the level pattern of the line transmission signal matches with a registered pattern of one control signal, the supply unit starts supplying or cuts off electric power to the secondary microcomputer. In response to the level pattern of the line transmission signal different from a registered pattern of any control signal, the supply unit invalidates the level change of the signal line to continue the power supply or cutoff.07-30-2009
20090193272Storage system and power consumption reduction method for the same - In a storage system that includes two or more file servers each including an arbitrary number of operating virtual file servers, a management server: holds a load information table regarding a load on each virtual file server for each time period and redundancy information table for the storage system; judges, with reference to the load information table and redundancy information table, whether or not the loads on the virtual file servers can be handled by a smaller number of file servers than the number of currently-operating file servers; selects, if the judgment result is positive, a power-off target file server and makes another file server fail over a virtual file server in the power-off target file server; and turns off the power-off target file server.07-30-2009
20130031391MULTI-CORE PROCESSOR SYSTEM, ELECTRICAL POWER CONTROL METHOD, AND COMPUTER PRODUCT - A multi-core processor system includes a core configured to detect that among cores different from a specific core executing a specific process, a given software different from specific software having a function equivalent to the specific process, is under execution; extract, from a database storing required computing capacities for the plural software and upon detecting that a given software is under execution, requirement values indicating the required computing capacity of the specific software and of the given software; judge for each the cores, whether a sum of the required computing capacities of the specific software and the software is at most a computing capacity value of the core; assign the specific software to a core for which the sum of the required computing capacities is judged to be at most the computing capacity value of the core; and suspend the specific core, upon assigning the specific software to the core.01-31-2013
20130031390METHOD AND SYSTEM FOR BUILDING A LOW POWER COMPUTER SYSTEM - Various embodiments disclosed herein relate to an efficient computer server system comprising an efficient power supply unit utilizing a plurality of power-rails to supply electric power to the system components, a special-purpose processor configured to operate as an efficient general purpose server processor while maintaining high performance, and a platform manager configured to control the power supplied to the system components to minimize the system's overall power consumption. Some disclosed embodiments relate to a method of reducing power consumption in information handling server systems comprising configuring a special-purpose processor to be function as a general purpose server processor, selecting a set of power efficient system components based on performance and power efficiency, utilizing an efficient power supply unit and a platform manager to control the power supplied by the power supply unit, and adjusting the processor's frequency to achieve an optimal performance/power-consumption ratio.01-31-2013
20100050005Display Device and Display Method - A display device includes: a display module; a storage module storing state setting information indicating whether setting of a power consumption state of the display module has been completed; an information readout module reading out the state setting information from the storage module at startup of the display module; a decision module deciding to set the power consumption state of the display module when the readout state setting information indicates non-setting; a display instruction module causing the display module to display a screen for setting the power consumption state in response to the decision to set the power consumption state; an input module inputting information for setting the power consumption state based on the screen displayed in the display module; and a state setting module setting the power consumption state based on the information inputted by the input module.02-25-2010
20130086400ACTIVE STATE POWER MANAGEMENT (ASPM) TO REDUCE POWER CONSUMPTION BY PCI EXPRESS COMPONENTS - Methods and apparatus relating to Active State Power Management (ASPM) to reduce power consumption by PCI express components are described. In one embodiment, a special packet with embedded information triggers entry into a lower power consumption state. The embedded information may include flow control credit information outstanding between two agents and the target power consumption state. Other embodiments are also disclosed and claimed.04-04-2013
20110202780DATA WRITING METHOD FOR NON-VOLATILE MEMORY, AND CONTROLLER AND STORAGE SYSTEM USING THE SAME - A data writing method for writing data from a host system into a plurality of memory dies of a rewritable non-volatile memory storage apparatus is provided. The data writing method includes determining whether the data transmission interface of the host system complies with a first interface standard or a second interface standard. The data writing method also includes using a general mode to write the data into the memory dies when the data transmission interface of the host system complies with the first interface standard and using a power saving mode to write the data into the memory dies when the data transmission interface of the host system complies with the second interface standard. Accordingly, the data writing method can effectively prevent the stability of the rewritable non-volatile memory storage apparatus from reducing due to insufficient power supplied by the data transmission interface.08-18-2011
20120179926MEMORY CONTROL CIRCUIT AND INTEGRATED CIRCUIT INCLUDING BRANCH INSTRUCTION AND DETECTION AND OPERATION MODE CONTROL OF A MEMORY - A memory control circuit includes a branch detection section to detect a branch instruction from an instruction fetched from a memory unit including a plurality of operation modes, and a mode control section to change an operation mode of the memory unit according to a detection result by the branch detection section. The memory unit includes a plurality of memories, the plurality of operation modes include a normal mode allowing access and a standby mode consuming a lower power than the normal mode, and in response to the detection of a branch instruction from an instruction fetched from any one of the plurality of memories, the mode control section makes standby release of the other memories.07-12-2012
20120246499Self-Powered Devices and Methods - The self-powered device is configured to be powered by energy collected from a surrounding environment. The self-powered device includes an energy collector, and a memory having instructions for selecting one of a plurality of modes of operation. The energy collector is configured to collect energy to power the self-powered device from a surrounding environment in which the self-powered device is located. The plurality of modes of operation include: (i) a low-power mode of operation in which the self-powered device consumes less than a pre-determined or adaptively-determined amount of power and the self-powered device uses less than its full capabilities, and (ii) and a high-power mode of operation in which self-powered device consumes more than the pre-determined or adaptively-determined amount of power and the self-powered device uses its full capabilities.09-27-2012
20100077241BUSINESS ENERGY MANAGEMENT BASED ON USER NETWORK ACCESS AND CALENDAR DATA - A method and computer program product for controlling energy utilization includes receiving user activities from each of a plurality of users into one or more software application, associating each user activity with a defined workspace having one or more remotely controllable electronic devices, and controlling energy utilization of the one or more electronic devices within each defined workspace according to the user activities associated with the defined workspace. Energy utilization is reduced in a defined workspace during a time period that there is no user activity associated with the workspace. Optionally, the step of receiving user activities may include detecting that a user has logged onto a remote computer that is not located within the defined workspace, or users inputting activities into a software application, such as one or more instances of an electronic calendar.03-25-2010
20100077240METHODS AND APPARATUSES FOR REDUCING POWER CONSUMPTION OF FULLY-BUFFERED DUAL INLINE MEMORY MODULES - Methods and apparatuses are presented for reducing the power consumed in an in-line memory module. In some embodiments, the method may include monitoring a memory requirement of a computer system, the computer system comprising a plurality of memory modules. In the event that the memory requirement changes, unmapping at least one of the plurality of memory modules and maintaining a low power state for the at least one unmapped memory module. The method may further comprise selectively re-initializing the plurality of memory modules such that the at least one unmapped memory module remains in a low power state while the remainder of the plurality of memory modules are in a non-low power state. Where, in the event that the memory requirement changes again, the method also may comprise re-programming the memory controller with an identifier associated with the at least one unmapped memory module.03-25-2010
20100115312TECHNIQUES FOR ENTERING A LOW-POWER LINK STATE - Techniques to cause a point-to-point link between system components to engage in a negotiation process that may lead to the link transitioning from an active state in which data may be transmitted between system components to a low power state where data may not be transmitted. The negotiation process may occur between each pair of nodes within an electronic system that are interconnected via point-to-point link. The negotiation may ensure that there are no pending transactions or transactions that may occur within an upcoming period of time. Through this negotiation each component acknowledges and agrees to transition the link to the low power state.05-06-2010
20100115310DISK ARRAY APPARATUS - A disk array apparatus includes: a plurality of storage units for storing data redundantly, the data of the at least one of the storage units being recoverable by the rest of the storage units; and a controller for controlling the storage units to have write data written into redundantly in response to a write command from the exterior, and controlling at least one of the storage units to assume an inactive state under a power saving mode and controlling the rest of the storage units to produce read out data in response to a read command from the exterior during the power saving mode.05-06-2010
20100115303SYSTEM AND METHOD OF UTILIZING RESOURCES WITHIN AN INFORMATION HANDLING SYSTEM - A system and method of utilizing resources within an information handling system are disclosed. In a particular form, a method of utilizing an information handling system can include detecting an operating state controllable by a state controller configured to enable a plurality of operating environments including a host environment and a reduced power environment. The method can also include detecting an event operable to alter the operating state to enable an operating environment of the plurality of operating environments. According to an aspect, the operating environment can be used separate from a host system operable to enable the host environment.05-06-2010
20130086399METHOD, SYSTEM AND APPARATUS FOR NETWORK POWER MANAGEMENT - A method for receiving Internet Protocol (IP) IP traffic data corresponding to one or more network devices, analyzing the IP traffic data and dynamically generating a power management policy based on the analysis.04-04-2013
20130080806MEDIA PROCESSING DEVICE AND METHOD OF CONTROLLING A MEDIA PROCESSING DEVICE - Power consumption is reduced without reducing convenience in a media processing device having a programmable device that requires configuration. The media processing device has a plurality of control devices, at least one control device is a CPU 03-28-2013
20130080803Estimating Temperature Of A Processor Core In A Low Power State - In one embodiment, the present invention includes a method for determining if a core of a multicore processor is in a low power state, and if so, estimating a temperature of the core and storing the estimated temperature in a thermal storage area for the first core. By use of this estimated temperature, an appropriate voltage at which to operate the core when it exits the low power state can be determined. Other embodiments are described and claimed.03-28-2013
20130185574SEMICONDUCTOR DEVICE, RADIO COMMUNICATION TERMINAL USING THE SAME, AND INTER-CIRCUIT COMMUNICATION SYSTEM - Disclosed as one aspect is a semiconductor device including a transmission/reception interface that is used for transmission and reception of data, a processing unit that processes the data, a monitoring unit that monitors received data and detects a specific frame allowed to be transmitted regardless of a state of a circuit to transmit/receive the data, and a power management unit that controls power consumption of a circuit including the processing unit.07-18-2013
20100037074POWER CONTROL FOR SERIAL BUS PERIPHERAL DEVICE - There is disclosed a method and a device connected to a serial bus, said method comprising transmitting a message that indicates a power requirement for a suspended mode of said serial bus; in response to a received authorization message, setting a first or a second operating state; entering said suspended mode; drawing a current in accordance with said indicated power requirement that may exceed a predetermined current limit if said operating state is said first state, and drawing a current at or below said predetermined current limit if said operating state is said second state.02-11-2010
20100037073Apparatus and Method for Selective Power Reduction of Memory Hardware - Apparatus and Method for Selective Power Reduction of Memory Hardware A method and apparatus are provided for managing delivery of power to one or more hardware memory devices in a computer system. The computer system is configured with a processor and at least two hardware memory devices. An energy exchange threshold for the computer system is set, and management of one or more of the hardware memory devices is employed when the computer system exceeds an energy exchange threshold.02-11-2010
20130036317Device, System And Method Of Generating An Execution Instruction Based On A Memory-Access Instruction - Embodiments of the present invention provide an apparatus, system, and method of generating an execution instruction. Some demonstrative embodiments my include generating an execution instruction of a predetermined executable format based on memory address data of a memory-access instruction representing a memory address. Other embodiments are described and claimed.02-07-2013
20130080807Method and Apparatus for User-Activity-Based Dynamic Power Management and Policy Creation for Mobile Platforms - A method and apparatus for user activity-based dynamic power management and policy creation for mobile platforms are described. In one embodiment, the method includes the monitoring of one or more sensor values of a mobile platform device to gather sensor activity data. Once the sensor activity data is gathered, the user state may be predicted according to the gathered user activity and an updated user state model. In one embodiment, the user state model is updated according to the sensor activity data. In one embodiment, a switch occurs from the present power management policy to a new power management policy if the new user state differs from a present user state by a predetermined amount. In one embodiment, at least one time-out parameter of a selected power management policy may be adjusted to comply with a predicted user state. Other embodiments are described and claimed.03-28-2013
20130080804Controlling Temperature Of Multiple Domains Of A Multi-Domain Processor - In one embodiment, the present invention includes a method for determining, in a controller of a multi-domain processor, whether a temperature of a second domain of the multi-domain processor is greater than a sum of a throttle threshold and a cross-domain margin, and if so, reducing a frequency of a first domain of the multi-domain processor by a selected amount. In this way, a temperature of the second domain can be allowed to reduce, given a thermal coupling of the domains. Other embodiments are described and claimed.03-28-2013
20130080805DYNAMIC PARTITIONING FOR HETEROGENEOUS CORES - In the various aspects, a virtual machine operating at the machine layer may use power consumption models to partition object code into portions, identify the relative power efficiencies of the mobile device processors for the various code portions, and route the code portions to the mobile device processors that can perform the operations using the least amount of energy. A dynamic binary translator process may translate the object code portions into an instruction set language supported by the hardware component identified as being preferred. The code portions may be executed and the amount of power consumed may be measured, with the measurements used to generate and/or update performance and power consumption models.03-28-2013
20090172433Powering on devices via intermediate computing device - Methods and apparatus relating to powering on devices via an intermediate computing device are described. In an embodiment, a request for data by a first device may be detected at a second device. The second device may determine a third device that stores the requested data and cause it to be turned on if the third device is in a reduced power consumption state. Other embodiments are also disclosed.07-02-2009
20120210150Method And Apparatus Of Smart Power Management For Mobile Communication Terminals - A method is provided for use in a mobile communication terminal configured to support a plurality of applications, wherein each application is executed by performing one or more tasks. The method includes, in response to a scheduling request from an application, obtaining an indication of power supply condition at a requested run-time of at least one of the tasks. The method further includes obtaining a prediction of a rate of energy usage by the task at the requested run-time, and making a scheduling decision for the task. The scheduling decision comprises making a selection from a group of two or more alternative dispositions for the task. The selection is made according to a criterion that relates the run-tune power-supply condition to the predicted rate of energy usage by the task.08-16-2012
20130042125SYSTEM AND METHOD FOR REDUCING POWER CONSUMPTION IN TELECOMMUNICATION SYSTEMS - Various exemplary embodiments relate to a method for controlling power consumption in a telecom system. The method includes selecting a power profile command based upon a desired power consumption and performance characteristic, translating the power profile command into at least one subcommand, and initiating at least one power reduction technique in a telecom component based upon the at least one subcommand.02-14-2013
20100042857SYSTEM AND METHOD FOR CONSERVING POWER APPLIED TO AN ELECTRICAL APPARATUS - A usage pattern identifies time periods when an electrical apparatus is likely to be powered-up or not in use. Power provided to an electrical apparatus is increased during time periods that the electrical apparatus is likely to be powered-up. Similarly, the power provided to the electrical apparatus is reduced or removed during time periods that the electrical apparatus is likely to be out of use or idle. The usage pattern is continually updated and refined by collecting usage data during user interaction with the electrical apparatus.02-18-2010
20100332873Power Supply Engagement and Method Therefor - An information handling system includes a plurality of power supply units (PSUs) to supply power to one or more system components. For each PSU of the plurality of PSUs, a power conversion efficiency profile for the PSU is determined using a power management control module of the information handling system. The power conversion efficiency profile represents a power conversion efficiency of the PSU for each of one or more power outputs capable of being supplied by the PSU. The power management control module determines a total amount of power to be supplied to a load of the information handling system, and engages a select number of PSUs to provide the total amount of power based on the total amount of power and the power conversion efficiency profiles of the PSUs.12-30-2010
20100332872Priority-Based Power Capping in Data Processing Systems - A mechanism is provided for priority-based power capping. A power management controller identifies a set of priorities for a set of partitions of the data processing system. The power management controller determines whether a measured power of the data processing system exceeds a power cap for the data processing system. Responsive to the measured power exceeding the power cap, the power management controller sends a set of commands to a set of component actuators to adjust one or more of a set of operation parameters for a set of components associated with the set of partitions using the set of priorities. The set of component actuators adjust the one or more of the set of operational parameters associated with the set of component in order to reduce a power consumption of the data processing system.12-30-2010
20100332870ELECTRONIC DEVICE FOR REDUCING POWER CONSUMPTION OF COMPUTER MOTHERBOARD AND MOTHERBOARD THEREOF - An electronic device for reducing power consumption of a computer motherboard is disclosed. The electronic device enables the computer motherboard to compel interruption of power supply to a south bridge chip and a super input output (SIO) chip of the computer motherboard so as to save power while the computer motherboard is waiting for receipt of a Wake-on-LAN packet. A network chip of the computer motherboard sends a signal to the power-saving electronic device as soon as a Wake-on-LAN event occurs, such that a standby power is electrically connected to the south bridge chip and the SIO chip by the electronic device. The computer motherboard equipped with the electronic device is capable of executing Wake-on-LAN function while compelling interruption of power supply to the south bridge chip and the SIO chip in a power-saving state.12-30-2010
20100106988CONTROL METHOD WITH MANAGEMENT SERVER APPARATUS FOR STORAGE DEVICE AND AIR CONDITIONER AND STORAGE SYSTEM - To provide a system that can reduce the power consumption of an air conditioner and the power consumption of a storage device. A control method with a management server apparatus for a plurality of storage devices and an air conditioner includes calculating plural combinations of allocating the work amount to the plurality of storage devices, calculating the heating value of each storage device included in the plurality of storage devices for each of the plural combinations, calculating the quantity of heat conducted to the air conditioner, based on the heating value and positional information of the plurality of storage devices and the air conditioner, calculating the power consumption to cool the quantity of heat conducted to the air conditioner, selecting a combination included in the plural combinations based on the power consumption of the air conditioner, and issuing a move instruction of moving the data stored in a first storage device to a second storage device to the plurality of storage devices, based on the selected combination.04-29-2010
20100106987Method for pre-chassis power multi-slot blade identification and inventory - Systems and methods for a blade server to obtain the blade type and configuration of the chassis without requiring the blades to be fully powered. Using this method the user has the ability to acquire correct inventory and slot status of the chassis through the use of a low power auxiliary power state. The user is then able to apply the proper power budgeting and thermal algorithm requirements utilizing this information while minimizing the power consumption necessary to acquire such information. In addition, an intelligent search algorithm may be utilized to scan the blades for blade information thus further minimizing power consumption and decreasing the time needed to inventory the blades.04-29-2010
20090138735ELECTRONIC APPARATUS HAVING SIGNAL PROCESSING CIRCUIT SELECTIVELY ENTERING POWER SAVING MODE ACCORDING TO OPERATION STATUS OF RECEIVER LOGIC AND RELATED METHOD THEREOF - An electronic apparatus with power saving functionality is disclosed. The electronic apparatus has a first signal processing circuit and a second signal processing circuit. The first signal processing circuit includes a receiver logic for processing at least a satellite signal generated from a global navigation satellite system (GNSS) to obtain resultant data; and a power saving determination logic for monitoring an operation status of the receiver logic and generating a first control signal according to the operation status. The second signal processing circuit includes a processing logic for receiving the resultant data from the receiver logic for further signal processing; and a power saving trigger logic for controlling the processing logic to enter a power saving mode from a normal mode when receiving the first control signal from the power saving control logic.05-28-2009
20090119522INFORMATION-PROCESSING APPARATUS, PACKET PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT - A processor includes a communication control unit for communicating with an external network device via a connecting unit. A power control unit switches a power mode between a normal power mode and a power saving mode. A packet processing unit includes a first determining unit that determines whether a packet processing is needed for a packet received when the power saving mode is set and a second determining unit that determines, when it is determined that the packet processing is needed, whether the packet processing is available. The power control unit switches the power mode based on a result of determination by the second determining unit.05-07-2009
20090125736Home appliance and controlling method of the same - The present invention is related to a home appliance such as a dish washer, a laundry machine, a refrigerator, etc. One embodiment of a home appliance according to the present invention comprises a control panel and a controller. The controller panel may include a power switch which allows a user to input a command for switching on or off a power of the appliance and an input device which allows the user to input a command in connection with an operation of the appliance.05-14-2009
20130138983AUTOMATED FEATURE CONTROL ON BATTERY LIMITED DEVICES - The present invention introduces a method for saving power in battery limited devices. The invention handles profile properties, which may e.g. be User Interface activity, Bluetooth connection success, email fetch success or WLAN connection success. A value of the property is saved into a memory, e.g. once an hour for the whole calendar week, thus forming a trend value which is regularly updated. Certain behavior patterns may then be seen. When changes in the trend occur with different users or as differences compared to a usual behavior in a calendar week, for instance, the characteristics of the device are altered accordingly in order to minimize power usage.05-30-2013
20120166829METHOD AND SYSTEM FOR MANAGING A STORAGE NETWORK TO REDUCE POWER CONSUMPTION - Methods, computer systems, and computer program products are provided for managing a storage network system is provided. The storage network system includes a plurality of zones. Each of the plurality of zones includes at least one storage network device. A link-down event associated with one of the storage network devices is detected. One of the plurality of zones is identified is identified as being unused if the zone is not accessed by another of the storage network devices in another of the plurality of zones and if the zone does not access another of the storage network devices in another of the plurality of zones.06-28-2012
20120166828METHOD AND SYSTEM FOR POWER CONTROL TO MINIMIZE POWER CONSUMPTION - The embodiments provide a system and method for device power control. In particular, the embodiments enable a device, such as a direct attached storage device coupled to a host, to enter into a mode that consumes less power. In one embodiment, the mode is self-initiated and triggered based on a preset timeout of non-use or other condition. Alternatively, this reduced power mode may be initiated based on a request by the host. During the reduced power mode of operation, the device may continue to appear active or on-line to its host. However, if its non-use persists, the device may employ a progression of power saving actions. If needed by the host, the direct attached storage device is configured to respond as if it were on-line and reverse one or more of the progression of power saving actions.06-28-2012
20130047015IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes a receiving unit configured to receive an input regarding a print process from a user; a setting unit configured to set the apparatus to normal or energy saving mode based on the input from the user, the normal mode causing the apparatus to be operated by the power supplied from a power supply unit, the energy saving mode causing the apparatus to be operated by the power supplied from the power supply unit or a secondary battery so that power consumption of the apparatus is less than that in the normal mode; a calculation unit configured to calculate a charging amount of the battery based on an energy saving time for which the apparatus has been in the energy saving mode; and a charging unit configured to charge the battery with the power from the power supply unit by the charging amount.02-21-2013
20130047014COMMUNICATION APPARATUS AND COMPUTER PROGRAM PRODUCT - According to an embodiment, a communication apparatus includes a data reception controller configured to receive data from an external device functioning in an active state via a network and store the data in a buffer; a remote controller configured to, when a predetermined condition is satisfied, issue a request to the external device to switch to a power saving state; and a processor configured to process the data stored in the buffer.02-21-2013
20130047013CONTROLLING THE OPERATION OF SERVER COMPUTERS - A plurality of server computers in a network that includes load balancing processes to enhance performance employs a non-performance related variable, such as power consumption, and modifies the load balancing processes in response to the reading of the non-performance variable. Such variables do not affect the response and performance as perceived by a browsing client but do provide other advantages with in the environment as a whole. The non-performance related variable is employed such that one or more of said server computers are de-activated to reduce power consumption, and the load balancing processes balance load across the remaining active server computers.02-21-2013
20130047012Apparatus and Method for Entering Low Power Mode Based on Process, Voltage, and Temperature Considerations - A processor arrangement changes its default time interval for entering a power saving mode based sensed operating conditions and predetermined time intervals to be used under various operating conditions to optimize power saving.02-21-2013
20130047011System and Method for Enabling Turbo Mode in a Processor - The systems and methods described herein may enable a processor core to run at higher speeds than other processor cores in the same package. A thread executing on one processor core may begin waiting for another thread to complete a particular action (e.g., to release a lock). In response to determining that other threads are waiting, the thread/core may enter an inactive state. A data structure may store information indicating which threads are waiting on which other threads. In response to determining that a quorum of threads/cores are in an inactive state, one of the threads/cores may enter a turbo mode in which it executes at a higher speed than the baseline speed for the cores. A thread holding a lock and executing in turbo mode may perform work delegated by waiting threads at the higher speed. A thread may exit the inactive state when the waited-for action is completed.02-21-2013
20130047010METHOD, SYSTEM AND COMPUTER PROGRAM PRODUCT FOR SCHEDULING DEMAND EVENTS - Disclosed and described herein are embodiments of systems, methods and computer program for scheduling demand events over a time period based on differences between the estimated power availability and the estimated power consumption at various points during the time period. In one aspect, methods are described. One embodiment of a method comprises establishing a defined time period, estimating power availability over the time period, estimating power consumption over the time period, and scheduling, using a computing device, demand events over the time period based on differences between the estimated power availability and the estimated power consumption at various points during the time period.02-21-2013
20090044032Method, Apparatus and Computer Program Product Providing Instruction Monitoring for Reduction of Energy Usage - A method is disclosed to operate a power advisor. The method includes, reading a first instruction set; reading a data bus; and reading register value(s) stored in at least one data register. This information is analyzed for energy usage purposes. If a set of instruction can provide the same result with a lower energy usage, the first instruction set is replaced with the lower power usage instruction set. An apparatus and computer program product are also disclosed.02-12-2009
20110004775Methods and Systems for Use-Case Aware Voltage Selection - Systems and methods according to these exemplary embodiments provide for optimizing voltage use in digital circuits. This can be obtained by creating situations for digital circuits such that the effective critical path (ECP) can be used such as, for example, the case where a digital circuit includes a plurality of voltage domains powered by individual and possibly different voltage sources. This can then reduce voltage use in digital circuits.01-06-2011
20090307508Optimizing the Efficiency of an Organization's Technology Infrastructure - This disclosure is directed to a method and system for optimizing a technology infrastructure of an organization. It includes a step or component for collecting source data from various aspects of technology infrastructure. It also includes a step or component for processing the source data to generate information regarding the technology infrastructure. It further includes creating goals regarding the optimization process of the technology infrastructure based on the information from the processed source data and generating a report wherein the goals are presented. The optimization of the technology infrastructure may include migrating non-core operating systems of hardware to consistent operating systems, leveraging the hardware and maximizing the CPU and storage utilization of the remaining core hardware in order to reduce the number of locations in the organization to thereby decrease the operating and fixed costs of organization the power consumption of the organization its associated environmental impact.12-10-2009
20120191996Serial Advanced Technology Attachment Interfaces And Methods For Power Management Thereof - At least one example embodiment discloses a method of managing a power between a host serial advanced technology attachment (SATA) interface and a device SATA interface. The method includes first requesting to enter one of power saving states, defined by a SATA protocol, and second requesting to enter a deep power saving state if one of the host SATA interface and the device SATA interface operates at the first requested power saving state. The first requesting to enter one of power saving states and the second requesting to enter a deep power saving state are performed by one of the host SATA interface and the device SATA interface.07-26-2012
20120191995METHOD, APPARATUS, AND SYSTEM FOR ENERGY EFFICIENCY AND ENERGY CONSERVATION INCLUDING OPTIMIZING C-STATE SELECTION UNDER VARIABLE WAKEUP RATES - A processor may include power management techniques to, dynamically, chose an optimal C-state for the processing core. The measurement of real workloads on the OSes exhibit two important observations (1) the bursts of high interrupt rate are interspersed between the low interrupt rate periods and long periods of high activity levels; and (2) the interrupt rate may, suddenly, fall below an interrupt rate (of 1 milli-second, for example) that is typical of the current operating systems (OS). Instead of determining the C-state based on the stale data stored in the counters, the power control logic may determine an optimal C-state by overriding the C-state determined by the OS or any other power monitoring logic. The power control logic may, dynamically, determine an optimal C-state based on the CPU idle residency times and variable rate wakeup events to match the expected wakeup event rate.07-26-2012
20120191994ELECTRONIC DEVICE, STORAGE MEDIUM AND METHOD FOR SAVING POWER OF THE ELECTRONIC DEVICE - In a method for saving power of an electronic device, a power saving mode is defined for saving power of the electronic device, and a plurality of power configurations for the power saving mode are set. The method invokes the power saving mode of the electronic device, and determines whether the electronic device is in the power saving mode when the electronic device executes functions or applications of the electronic device. If the electronic device is in the power saving mode, the power configurations of the power saving mode are executed. If the electronic device is in a normal mode saving mode, normal configurations of the normal mode of the electronic device are executed.07-26-2012
20120191993SYSTEM AND METHOD FOR REDUCING POWER CONSUMPTION IN AN ELECTRONIC DEVICE HAVING A TOUCH-SENSITIVE DISPLAY - A system and method for reducing power consumption in an electronic device by controlling the transition of the electronic device from a sleep mode to a full power mode. The electronic device comprises a main processor a touch-sensitive overlay, and an overlay controller. A sequence of touch inputs on the touch-sensitive overlay are detected and captured using the overlay controller while the main processor is in the sleep mode. A subset of the sequence of touch inputs is processed using the overlay controller to determine that the sequence of touch inputs corresponds to a coarse model of a pre-determined wake-up gesture prior to transitioning the electronic device from the sleep mode to the full power mode.07-26-2012
20090094471VIDEO PROCESSING APPARATUS AND CONTROL METHOD THEREOF - A video processing apparatus and a control method thereof are provided. The video processing apparatus includes: a processing unit which processes a video signal for display; a clock generating unit which generates a system clock for driving the processing unit and outputs the system clock to the processing unit; a power supply unit which supplies power to the processing unit; and a controller which counts a power supply time using a clock generated from the system clock. The controller compares the counted power supply time with a predetermined reference time, and controls power supplied to the processing unit from the power supply unit.04-09-2009
20090094469MULTI-FUNCTION PERIPHERAL, POWER SUPPLY APPARATUS, AND POWER SUPPLY CONTROL METHOD - A digital multi-function peripheral includes a multi-function peripheral unit that has plural functions, a switching power supply unit connected to a commercial power supply as a main power supply for the multi-function peripheral unit, and an electrical storage device charged in advance as an auxiliary power supply for the multi-function peripheral unit. The digital multi-function peripheral further includes a control circuit that monitors a load current flowing to the multi-function peripheral unit, supplies electric power from the electrical storage device to the multi-function peripheral unit instead of electric power from the switching power supply unit when the load current is smaller than a threshold set as an allowable lower limit of power efficiency of the switching power supply unit, and supplies the electric power from the switching power supply unit to the multi-function peripheral unit when the load current increases to be equal to or larger than the threshold.04-09-2009
20130073883Dynamic Power Optimization For Computing Devices - In the various aspects, virtualization techniques may be used to reduce the amount of power consumed by execution of applications by power-optimizing the code prior to execution. A dynamic binary translator operating at the machine layer may use a power consumption model to identify code segments that can benefit from optimization and to perform an instruction-sequence to instruction-sequence translation of object code to generate power-optimized object code. Execution hardware may be instrumented with additional circuitry to measure the power consumption characteristics of executing code. The power consumption models may be updated and object code may be regenerated based on the measured the power consumption characteristics of previously executed code. In an aspect, power optimization may be accomplished when the computing device is connected to a battery charger.03-21-2013
20130073882SYSTEM AND METHOD FOR REMOTELY MANAGING ELECTRIC POWER USAGE OF TARGET COMPUTERS - In one aspect, a system for remotely managing electric power usage of a plurality of target computers is disclosed. In one embodiment, the system includes a plurality of target computers arranged in a group, each using electric power at a rate associated with a corresponding duty cycle and power rating. A remote management computer is communicatively connected to the group of target computers and operative to receive user input data including a total group power usage limit and a priority assignment, minimum duty cycle setting, and/or power zone setting for at least one of the target computers. A power controller is operative to remotely control the power usage of the target computers according to the corresponding user input data, to cause the total group power usage to be at or below the group power usage limit.03-21-2013
20130073886Systems and Methods for Monitoring and Managing Memory Blocks to Improve Power Savings - Systems and methods are provided for placing a portion of a memory into a low power mode. A system includes a hot spot region creator configured to determine an activity level for each of a plurality of regions of a memory, where certain of the regions are determined to be active regions, and where certain of the regions are determined to be inactive regions and rearrange the data to position the active region data in a contiguous active portion of memory and to position the inactive regions data in a contiguous inactive portion of memory. A memory controller is configured to place the contiguous inactive portion of memory into a low power mode.03-21-2013
20130073884DYNAMIC SLEEP FOR MULTICORE COMPUTING DEVICES - The aspects enable a multi-core processor or system on chip to determine a low power configuration that provides the most system power savings by placing selected resources in a low power mode depending upon acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. Each of the cores/processing units treated in a symmetric fashion, and each core may choose its operating state independent of the other cores, without performing complex handshaking or signaling operations.03-21-2013
20130073885POWER SUPPLYING CONTROL APPARATUS, MANAGEMENT CONTROL APPARATUS, IMAGE PROCESSING APPARATUS, AND COMPUTER READABLE STORAGE MEDIUM - A power supplying control apparatus includes a transition unit that causes a control apparatus to transition to one of a power supplied state that causes power to be supplied and a power shutoff state that shuts off the supplying of power, and a determining unit that determines a transition target of the transition unit in accordance with a first time period and a second time period, the first time period having a length of time beyond which no further memory space is available from a second memory, and thus being determined by a transmission and reception speed of information to a communication line network and a storage capacity of the second memory, the second time period being so long as to enable information stored on the second memory to be stored on a first memory in the power shutoff state.03-21-2013
20130061074ELECTRONIC DEVICE AND COMPUTER PROGRAM PRODUCT - An electronic device has, as operation modes, a first mode and a second mode reduced in power consumption from the first mode. The electronic device includes a main unit an operation of which is suppressed in the second mode; and a sub-unit. The sub-unit includes a communicating unit that performs communication via a communication line; and an operation mode controller that changes the operation modes from the second mode to the first mode when the communication with a predefined prescribed device is requested during the second mode and changes the operation modes from the first mode to the second mode at a timing corresponding to termination of the communication.03-07-2013
20130061073COMPUTER SYSTEM AND COMPUTER - Disclosed herein is a computer system including multiple worker nodes, each being equipped with an electric power generation unit and an electric power storage unit storing electric power generated by the electric power generation unit, and a master node responsible for management of tasks that are assigned to the worker nodes. Each worker node determines an operating cycle time of the worker node to execute a task assigned by the master node or communicate with any other worker node, based on information indicating a change in electric power stored in the electric power storage unit of the worker node.03-07-2013
20130061072POWER SAVING NODE CONTROLLER - A method and apparatus are provided which allow telecommunication equipment to adjust its power consumption. A controller within a telecommunication node uses data to determine whether to reduce the power consumption of components within the node. The data can be real-time data fed to the node or controller, or data read from storage, or both, depending on the particular implementation. Various examples of data and decision-making are given.03-07-2013
20130061070MASSIVELY MULTICORE PROCESSOR AND OPERATING SYSTEM TO MANAGE STRANDS IN HARDWARE - A computing apparatus and corresponding method for operating are disclosed. The computing apparatus may comprise a set of interconnected central processing units (CPUs). Each CPU may embed an operating system including a kernel comprising a protocol stack. At least one of the CPUs may further embed executable instructions for allocating multiple strands among the rest of the CPUs. The protocol stack may comprise a Transmission Control Protocol/Internet Protocol (TCP/IP), a User Datagram Protocol/Internet Protocol (UDP/IP) stack, an Internet Control Message Protocol (ICMP) stack or any other suitable Internet protocol. The method for operating the computing apparatus may comprise receiving input/output (I/O) requests, generating multiple strands according to the I/O requests, and allocating the multiple strands to one or more CPUs.03-07-2013
20130061075IMAGE FORMING APPARATUS AND CONTROL METHOD OF IMAGE FORMING APPARATUS - An image forming apparatus includes a reading unit, a first control unit, a second control unit, and a power supply control unit. The reading unit reads authentication information including a card type and a user code. The first control unit determines, in a state where power is not being supplied to the second control unit, whether a card type included in the authentication information read by the reading unit corresponds to a predetermined card type. The second control unit requests an authentication apparatus to perform user authentication based on the authentication information read by the reading unit. The power supply control unit controls power supply to the second control unit. In response to the first control unit determining that the card type included in the authentication information read by the reading unit corresponds to the predetermined card type, the power supply control unit supplies power to the second control unit.03-07-2013
20130061071Energy Efficient Implementation Of Read-Copy Update For Light Workloads Running On Systems With Many Processors - A technique for determining if a processor in a multiprocessor system implementing a read-copy update (RCU) subsystem may be placed in low power state. The technique may include determining whether the processor has any RCU callbacks that are ready for invocation or the RCU subsystem requires grace period advancement processing from the processor. The processor may be placed in a low power state if either (1) a first condition holds wherein the processor has one or more pending RCU callbacks, but does not have any RCU callbacks that are ready for invocation and the RCU subsystem does not require grace period advancement processing from the processor, (2) a second condition holds wherein the processor does not have any pending RCU callbacks.03-07-2013
20090300386Reducing power consumption during execution of an application on a plurality of compute nodes - Methods, apparatus, and products are disclosed for reducing power consumption during execution of an application on a plurality of compute nodes that include: powering up, during compute node initialization, only a portion of computer memory of the compute node, including configuring an operating system for the compute node in the powered up portion of computer memory; receiving, by the operating system, an instruction to load an application for execution; allocating, by the operating system, additional portions of computer memory to the application for use during execution; powering up the additional portions of computer memory allocated for use by the application during execution; and loading, by the operating system, the application into the powered up additional portions of computer memory.12-03-2009
20090271645Management apparatus, storage apparatus and information processing system - Proposed are a management apparatus, a storage apparatus, and an information processing system capable of improving the storage apparatus performance and power saving efficiency. This management apparatus connected to a storage apparatus arranged in a power supply range set with a threshold value of power supplied externally includes a control unit configured to control, based on electric energy used for operating one or more conducting parts that are energized through supply of external power and subject to power saving control and the power threshold value, the power supplied to the one or more conducting parts in conducting part units.10-29-2009
20090271644ENERGY EFFICIENT METHOD TO WAKE HOST SYSTEM FOR CHARGING BATTERY POWERED PORTABLE DEVICES VIA BUS POWERED EXTERNAL I/O PORTS - Optimized bus powered peripheral battery charging includes a circuit to initiate a change in an advanced configuration and power interface (ACPI) state in a controller allowing charging of a peripheral device battery, the circuit including a signal converter coupled between an input port and the controller to sense when a the peripheral device battery is coupled to an input port and to restrict the controller from changing ACPI state multiple times for a given peripheral device battery coupling; and a ground loop detector coupled in parallel to the signal converter between the input port and the controller to allow the controller to know that the peripheral device battery has maintained being coupled to the input port.10-29-2009
20090271643REAL-TIME INFERENCE OF POWER EFFICIENCY METRICS FOR A COMPUTER SYSTEM - Some embodiments of the present invention provide a system that measures a power efficiency of a computer system. During operation, the system collects telemetry data from a set of sensors within the computer system. Next, the system determines a power consumption of the computer system from the telemetry data and determines a number of input/output operations per second (IOPS) for the computer system from the telemetry data. Finally, the system computes an IOPS per watt metric from the power consumption and the number of IOPS.10-29-2009
20120226924INTERFACE CIRCUIT SYSTEM AND METHOD FOR PERFORMING POWER MANAGEMENT OPERATIONS IN CONJUNCTION WITH ONLY A PORTION OF A MEMORY CIRCUIT - A memory circuit power management system and method are provided. An interface circuit is in communication with a plurality of memory circuits and a system. In use, the interface circuit is operable to perform a power management operation in association with only a portion of the memory circuits.09-06-2012
20120226923POWER CONSUMPTION CONTROLLER, A POWER CONSUMPTION CONTROL SYSTEM, A POWER CONSUMPTION CONTROL METHOD AND A PROGRAM THEREOF - A power consumption controller includes an input power monitoring unit, a load information monitoring unit, a redundancy configuration unit and a power control unit. The input power monitoring unit monitors an input power to a unit including a plurality of components. The load information monitoring unit measures a load of each of the components. The redundancy configuration unit stores information regarding an operation state of each of the components and extracts information regarding a configuration in which redundancy is maintained even if one of the components in operation is stopped. The power control unit detects whether or not the input power is over a predetermined value, selects a component having the smallest load among the components of the extracted configuration when the input power is over the predetermined value and switches the selected component into a power saving mode.09-06-2012
20120226922CAPPING DATA CENTER POWER CONSUMPTION - Example systems, methods and articles of manufacture to cap data center power consumption are disclosed. A disclosed example system includes a group power capper to allocate a fraction of power for a data center to a portion of the data center, a domain power capper to allocate hosted applications to a server of the portion of the data center to comply with the allocated portion of the power, and a local power capper to control a first state of the server and a second state of a cooling actuator associated with the portion of the data center to comply with the allocated portion of the power.09-06-2012
20130067257Power Managed Lock Optimization - In an embodiment, a timer unit may be provided that may be programmed to a selected time interval, or wakeup interval. A processor may execute a wait for event instruction, and enter a low power state for the thread that includes the instruction. The timer unit may signal a timer event at the expiration of the wakeup interval, and the processor may exit the low power state in response to the timer event. The thread may continue executing with the instruction following the wait for event instruction. In an embodiment, the processor/timer unit may be used to implement a power-managed lock acquisition mechanism, in which the processor is awakened a number of times to check the lock and execute the wait for event instruction if the lock is not free, after which the thread may block until the lock is free.03-14-2013
20130067256Electric Storage Device Monitor - An electric storage device monitor includes a measurement unit detecting and obtaining a detected value, a power supply switch portion switching a power supply state of the monitor between a monitoring state and a low power consumption state, a wakeup timer to which an actuation time is set and starting counting time in response to switching to the low power consumption state and continuing counting time and outputting an actuation signal if reaching the actuation time, and a control unit. The switch portion switches from the low power consumption state to the monitoring state every time the wakeup timer outputs the actuation signal. The control unit controls the measurement unit to detect and obtain the detected value in the monitoring state, compares the detected value and a reference value, and changes the actuation time according to a comparison result of the detected value and the reference value.03-14-2013
20130067255AUTOMATIC BACKLIGHT INTENSITY ADJUSTMENT IN AN EMBEDDED OPERATING SYSTEM ENVIRONMENT - A method includes monitoring, through a battery driver component of a embedded operating system executing on a data processing system deriving power from a battery, a state of the battery. The method also includes modifying, through a backlight driver component of the embedded operating system, an intensity level of a backlight of one or more Input/Output (I/O) devices of the data processing system from a current level associated with a normal operation thereof to an intensity level lower than the current level when the battery is detected to be in a critical state to prolong a lifetime thereof. The critical state is associated with a remaining charge on the battery being below a threshold required to maintain the data processing system in a powered on state.03-14-2013
20120117400EFFICIENT SERVICE ADVERTISEMENT AND DISCOVERY IN A PEER-TO-PEER NETWORKING ENVIRONMENT - A local device broadcasts a service advertisement in a wireless network, where the service advertisement includes one or more service identifiers (IDs) identifying one or more services being advertised and an availability schedule of the local device. Optionally, the local device reduces power to at least a portion of the local device and wakes up at a time according to the availability schedule. The local device listens in the wireless network according to the availability schedule of the local device. In response to a service request received from a remote device during the availability window, the local device transmits a service response to the remote device. The service request includes one or more service IDs identifying one or more services being inquired by the remote device and the service response includes detailed information associated with one or more services identified by the one or more service IDs.05-10-2012
20120117399SAVING POWER BY MANAGING THE STATE OF INACTIVE COMPUTING DEVICES - A system method and computer program product for managing readiness states of a plurality of computing devices. A programmed processor unit operates, upon receipt of a request, to either: provide one or more computing devices from an inactive pool to an active pool, or accept one or more active computing devices into the inactive pool. An Inactive Pool Manager proactively manages the inactive states of each computing device by: determining the desired number (and identities) of computing devices to be placed in each inactive state of readiness by solving a constraint optimization problem that describes a user-specified trade-off between expected readiness (estimated time to be able to activate computing devices when they are needed next) and conserving energy; generating a plan for changing the current set of inactive states to the desired set; and, executing the plan. Multiple alternative ways of quantifying the desired responsiveness to surges in demand are provided, and, in each case, the tradeoff between responsiveness and power savings is formulated as an objective function with constraints, and the desired number of devices in each inactive state emerges as the solution to a constraint optimization problem.05-10-2012
20120117398SYSTEM AND METHOD FOR CONTROL OF POWER CONSUMPTION OF INFORMATION HANDLING SYSTEM DEVICES - Systems and methods for controlling power usage of devices in information handling systems are provided. A device for use in an information handling system may include a connector and an auxiliary power connector. The connector may be configured to electrically couple to a device connector such that the device transmits and receives data via the device connector and receives electrical current from a power supply via the device connector. The auxiliary power connector may be configured to electrically couple the device to the power supply such that the device receives electrical current from the power supply via the device connector, the auxiliary power connector including at least one sense line, the at least one sense line configured to receive at least one power control signal. The device may be configured to establish its power usage in response to receiving the at least one power control signal.05-10-2012
20120117397DYNAMIC VOLTAGE ADJUSTMENT TO COMPUTER SYSTEM MEMORY - A system and method are provided wherein the voltage to a random access memory system may be automatically, dynamically adjusted without requiring an operating system to be restarted. In one embodiment, a target value of a voltage supplied to the memory system is dynamically selected. A system management mode is invoked in response to a change in the dynamically selected target value, including suspending a normal operation of the memory system. While in the system management mode, the voltage supplied to the memory system is adjusted according to the changed target voltage. A memory speed is adjusted according to the changed target value of the voltage. These steps are performed without restarting the computer system. The system management mode is exited and normal operation of the memory system may resume at the changed target voltage.05-10-2012
20090265567METHOD, APPARATUS AND SYSTEM FOR REDUCING POWER CONSUMPTION INVOLVING DATA STORAGE DEVICES - The invention provides a method, apparatus and system for reducing power consumption involving data storage devices. One embodiment involves a process for storing data in a first memory, and in response to the first memory exceeding a first threshold, migrating the data from the first memory to a second memory. In response to the second memory exceeding a second threshold, the process then involves migrating the data from the second memory to the third memory, wherein the second memory is sized and configured to store data targeted for the third memory to intelligently maintain a portion of the third memory in an inactive state.10-22-2009
20120198254CAPPING POWER CONSUMPTION IN A DATA STORAGE SYSTEM - A method for capping power consumption in a data storage system is provided. The method comprises associating a power quota with a first storage medium, wherein the power quota limits amount of power consumed by the first storage medium within a given time interval; receiving a request to perform an input/output (I/O) operation on the first storage medium; and servicing the request within power limits defined by the power quota.08-02-2012
20090235097Data Center Power Management - An exemplary method for managing power consumption of a data center includes monitoring power consumption of a data center, assessing power consumption with respect to a billing equation for power, based on the assessment, deciding whether to implement a power policy where the power policy reduces instantaneous power consumption by the data center and increases a load factor wherein the load factor is an average power consumed by the data center divided by a peak power consumed by the data center over a period of time. Various other methods, devices, systems, etc., are also disclosed.09-17-2009
20090013200DATA PROCESSING APPARATUS AND DATA PROCESSING APPARATUS CONTROL METHOD - A data processing apparatus includes a receiving unit configured to receive data, a first processing unit configured to perform predetermined processing on the received data, a second processing unit configured to perform the predetermined processing on the received data, a first control unit configured to perform control so that the data processing apparatus operates in one of a first operation mode for supplying power to both the first processing unit and the second processing unit and a second operation mode for discontinuing a supply of power to the first processing unit while supplying power to the second processing unit, and a second control unit configured to perform control so that the first processing unit performs the predetermined processing if the data processing apparatus operates in the first operation mode and that the second processing unit performs the predetermined processing if the data processing apparatus operates in the second operation mode.01-08-2009
20090006876STORAGE SYSTEM COMPRISING FUNCTION FOR REDUCING POWER CONSUMPTION - For at least one of storage unit, processor and cache memory which are I/O process-participating devices related to I/O command process, when a load of one or more I/O process-participating devices or a part thereof is a low load equal to or less than a predetermined threshold value, a processing related to a state of one or more of the I/O process-participating devices or a part thereof is redirected to another one or more I/O process-participating devices or a part thereof, and the state of the one or more I/O process-participating devices or a part thereof is shifted to a power-saving state.01-01-2009
20090006875Media Device Power Conservation - Power is dynamically conserved in a device by analyzing past processing performance of the device and predicting the amount of power required for future execution. In an example embodiment, a video frame is analyzed to determine what portion of the video frame was needed to render data. If less than the full video frame was needed, at least one power conservation technique is applied to the device for subsequent rendering of data. Power conservation techniques include adjusting the operating frequency of circuitry utilized to render data, adjusting the voltage applied to circuitry utilized to render data, and/or turning off/on circuitry utilized to render data.01-01-2009
20120239951POWER SUPPLY SYSTEM WITH ENERGY-SAVING FUNCTION - A power supply system includes a power supply, a switch control circuit, a voltage rectifying circuit, and a trigger switch connected to the switch control circuit. The switch control circuit is connected between an alternating current (AC) power source and the power supply. The voltage rectifying circuit is connected between the AC power source and the switch control circuit to rectify an AC voltage into a direct current (DC) voltage to power the switch control circuit. When the computer system is powered off, the power supply fails to output a system voltage, and the trigger switch fails to be triggered, the switch control circuit disconnects the power supply from the AC power source. When the computer system is powered off, the power supply fails to output a system voltage, and the trigger switch is triggered, the switch control circuit connects the power supply to the AC power source.09-20-2012
20080294919ETHERNET LOW POWER PARTIAL FUNCTIONALITY COMMUNICATION LINK - Methods and devices for a low power partial functionality communication link having an Ethernet mode of operation and a low power partial functionality mode of operation. The communication link may process only frames containing predefined data types while in the low power partial functionality mode.11-27-2008
20100162016LOW POWER CONSUMPTION PROCESSOR - Provided is a low power consumption processor. The processor includes: a plurality of blocks; a memory storing instructions that control each of the plurality of blocks; and a multi power controller generates a signal that activates at least one of the plurality of blocks according to an address storing the instruction, and provides a normal power voltage or a reduction power voltage in response to the activation signal.06-24-2010
20100218016IMAGE PROCESSING APPARATUS - An image processing apparatus includes a volatile storing unit, a nonvolatile storing unit, a processing control unit, a transfer unit and a power controlling unit. The processing control unit controls image processing and writes a result of the control as history information into the volatile storing unit. The transferring unit transfers the history information from the volatile storing unit to the nonvolatile storing unit. The power controlling unit transfers the history information to the transferring unit transfer when detecting an abnormality of the processing control unit based on a communication with the processing control unit, and stops a supply of a power after a passage of a certain time since the detection of the abnormality.08-26-2010
20100153758METHOD AND APPARATUS FOR OPTIMIZING POWER CONSUMPTION IN A MULTIPROCESSOR ENVIRONMENT - A method and apparatus for reducing net power consumption in a computer system includes identifying a plurality of processing states operable to execute a task. A processing state and current drain pattern is selected that is most power efficient. A selected processing state may include one or more processing elements of the computer system such as one or more processors or accelerators and indicates the manner in which one or more portions of the received task may be distributed among the processing elements of the computer system. The current drain pattern selected may be a constant current drain pattern or a pulsed current drain pattern and may be selected to optimize power consumption when executing the task among the one or more processing elements.06-17-2010
20110283123STORAGE APPARATUS AND CONTROL METHOD OF STORAGE SYSTEM - The present invention achieves appropriate power saving of the storage systems in accordance with the user's needs. In a storage system 11-17-2011
20100268971METHOD AND APPARATUS FOR REDUCING POWER CONSUMPTION DURING WIRELESS DATA TRANSFER - Apparatus for reducing power consumption during wireless data transfer between a host device and another device is disclosed. The apparatus comprises a plurality of wireless modules, each of the plurality of wireless modules comprising a different wireless protocol, each wireless protocol having a different transmission range and data transfer rate. The apparatus also comprises a processor having a determination module. The determination module is configured to determine which of the plurality of wireless protocols is able to be used for the wireless data transfer, and which of the different wireless protocols able to be used for the wireless data transfer has a power consumption that is the lowest of the wireless protocols able to be used for the wireless data transfer, the wireless protocol so determined being used for the wireless data transfer. A corresponding method is also disclosed.10-21-2010
20110302435POWER MANAGEMENT METHOD AND APPARATUS, AND POWER SUPPLY SYSTEM - A power management method and apparatus, and a power supply system are provided. The method includes: obtaining a power demand value of each module and a rated output power of each power supply unit (PSU) in a communication equipment; calculating the obtained power demand value of each module to acquire a total power demand value of the modules; and adjusting, according to the calculated total power demand value of the modules and the obtained rated output power of each PSU, the current number of the PSUs actually turned on in the communication equipment.12-08-2011
20110302432SUPER CAPACITOR SUPPLEMENTED SERVER POWER - Super capacitor supplemented server power is described. In embodiments, a power system manager is implemented to monitor the capability of one or more power supplies to provide power for a server system. The power system manager can determine that the capability of the power supplies to provide the power is deficient, and then engage one or more super capacitor power modules to provide supplemental power for the server system to mitigate the power deficiency.12-08-2011
20110302434METHOD AND DEVICE OF POWER SAVING FOR TRANSMITTING SIGNALS - A method and device of the power saving for transmitting a signal is provided. The method comprises the steps of: transmitting a test signal with a first test amplitude from a local terminal, wherein the first test amplitude is selected from a plurality of preset amplitudes; acknowledging that the test signal with the first test amplitude has been received by a remote terminal if an acknowledgement signal is transmitted from the remote terminal for a response to the test signal; and transmitting a data signal having a data amplitude based on the first test amplitude. The device can transmit the data signal with a small data signal amplitude by the method to achieve the saving power.12-08-2011
20090187777INCREASING WORKLOAD PERFORMANCE OF ONE OR MORE CORES ON MULTIPLE CORE PROCESSORS - A processing node that is integrated onto a single integrated circuit chip includes a first processor core and a second processor core. The processing node also includes an operating system executing on either of the first processor core and the second processor core. The operating system may monitor a current utilization of the first processor core and the second processor core. The operating system may cause the first processor core to operate at performance level that is lower than a system maximum performance level and the second processor core to operate at performance level that is higher than the system maximum performance level in response to detecting the first processor core operating below a utilization threshold.07-23-2009
20120005505Determining Status Assignments That Optimize Entity Utilization And Resource Power Consumption - In a method of determining status assignments for a plurality of entities that substantially optimizes a total power consumption of the plurality of entities and a plurality of resource actuators, at least one entity power model for the entities and at least one resource power model for the resource actuators are developed. In addition, a constraint optimization problem having an objective function and at least one constraint is formulated and the problem is solved by employing a search tool, the at least one entity power model, and the at least one resource power module on the objective function to identify status assignments for the entities that results in the optimized total power consumption.01-05-2012
20120005500PERIPHERAL-DEVICE UTILIZING SYSTEM, SERVER DEVICE, AND METHOD - A server machine, connectable to a peripheral device and to a client machine via a network, includes: a device interface for connecting with a peripheral device; a network interface for connecting with a network; and a device interface control section configured to relay data communications between the client machine and the peripheral device via the device interface and the network interface, and to execute a first process, if a first condition, including that predetermined first data has been received from the client machine is satisfied, of causing the peripheral device to transition into a first state in which the peripheral device is communicable with the server machine, and execute a second process, if a second condition, including that predetermined second data has been received is satisfied, of causing the peripheral device to transition into a second state in which its power consumption is lower than that in the first state.01-05-2012
20110289330METHOD AND APPARATUS FOR POWER-EFFICIENCY MANAGEMENT IN A VIRTUALIZED CLUSTER SYSTEM - A method for power-efficiency management in a virtualized cluster system is disclosed, wherein the virtualized cluster system comprises a front-end physical host and at least one back-end physical host, and each of the at least one back-end physical host comprises at least one virtual machine and a virtual machine manager for managing the at least one virtual machine. In the method, flow characteristics of the virtualized cluster system are detected at a regular time cycle, then a power-efficiency management policy is generated for each of the at least one back-end physical host based on the detected flow characteristics, and finally the power-efficiency management policies are performed. The method can detect the real-time flow characteristics of the virtualized cluster system and make the power-efficiency management policies thereupon to control the power consumption of the system and perform admission control on the whole flow, thereby realizing optimal power saving while meeting the quality of service requirements, so that a virtualized cluster system with high power-efficiency can be provided.11-24-2011
20110289329LEVERAGING SMART-METERS FOR INITIATING APPLICATION MIGRATION ACROSS CLOUDS FOR PERFORMANCE AND POWER-EXPENDITURE TRADE-OFFS - Managing power expenditures for hosting computer applications. A smart meter can receive electricity pricing information for a data center or other group of computing resources that host computer applications, such as a cloud computing environment. An application manager to determine how much electricity can be saved by operating the applications at a reduced performance level without compromising performance metrics for the applications. A site broker can determine how to sequence the performance levels of the applications to meet an electricity usage budget or to otherwise reduce electricity consumption or costs, for example during a peak load time period. The site broker can also select one or more applications to migrate to another cloud to meet the electricity usage budget or to reduce electricity consumption or costs. A hybrid cloud broker can interact with the site broker to migrate the selected application(s) to another cloud.11-24-2011
20110296211DATA PROCESSOR HAVING MULTIPLE LOW POWER MODES - A processor includes a first virtual terminal, a second virtual terminal, circuitry coupled to the first virtual terminal for providing current to the first virtual terminal, a first regulating transistor coupled between the first virtual terminal and the second virtual terminal, a first disabling transistor coupled in parallel with the first regulating transistor for selectively disabling the first regulating transistor by directly connecting the second virtual terminal to the first virtual terminal, a second regulating transistor coupled between the second virtual terminal and a first power supply voltage terminal, and a second disabling transistor coupled in parallel with the second regulating transistor for selectively disabling the second regulating transistor by directly connecting the second virtual terminal to the first power supply voltage terminal.12-01-2011
20110296213Enterprise power management method and system and power manager for use therein - A method and system for managing power in an enterprise environment based on individual office worker schedules. In one aspect, the system includes a power manager, a plurality of client devices operatively coupled with the power manager and a plurality of managed elements operatively coupled with the power manager, wherein the power manager receives from the client devices individual worker schedule information and generates based at least in part on the individual worker schedule information a list of scheduled events having associated managed elements and power profiles, and wherein in response to a start time of a scheduled event the power manager adjusts a power state of one or more managed elements associated with the scheduled event in accordance with a power profile associated with the scheduled event.12-01-2011
20110296214POWER SAVINGS AND/OR DYNAMIC POWER MANAGEMENT IN A MEMORY - An apparatus comprising a plurality of buffers and a memory controller. The plurality of buffers may each be configured to generate an access request signal in response to a respective one of a plurality of channel requests received from a respective one of a plurality of clients. The memory controller circuit may be configured to generate a clock enable signal in response to the plurality of access request signals. The clock enable signal may be configured to initiate entering and exiting a power savings mode of a memory circuit.12-01-2011
20110296212Optimizing Energy Consumption and Application Performance in a Multi-Core Multi-Threaded Processor System - A mechanism is provided for scheduling application tasks. A scheduler receives a task that identifies a desired frequency and a desired maximum number of competing hardware threads. The scheduler determines whether a user preference designates either maximization of performance or minimization of energy consumption. Responsive to the user preference designating the performance, the scheduler determines whether there is an idle processor core in a plurality of processor cores available. Responsive to no idle processor being available, the scheduler identifies a subset of processor cores having a smallest load coefficient. From the subset of processor cores, the scheduler determines whether there is at least one processor core that matches desired parameters of the task. Responsive to at least one processor core matching the desired parameters of the task, the scheduler assigns the task to one of the at least one processor core that matches the desired parameters.12-01-2011
20120023349INFORMATION PROCESSING APPARATUS AND POWER SAVING MEMORY MANAGEMENT METHOD - An information processing apparatus has a task area unit as an area that executes a predetermined process, a power control unit that reads a task area to execute the process from the process and supplies power from a power source to the read task area, and a control unit that executes the process in the task area unit to which the power is supplied by the power control unit.01-26-2012
20120023348METHODS AND SYSTEMS FOR DYNAMICALLY CONTROLLING OPERATIONS IN A NON-VOLATILE MEMORY TO LIMIT POWER CONSUMPTION - Systems and methods are disclosed for limiting power consumption of a non-volatile memory (NVM) using a power limiting scheme that distributes a number of concurrent NVM operations over time. This provides a “current consumption cap” that fixes an upper limit of current consumption for the NVM, thereby eliminating peak power events. In one embodiment, power consumption of a NVM can be limited by receiving data suitable for use as a factor in adjusting a current threshold from at least one of a plurality of system sources. The current threshold can be less than a peak current capable of being consumed by the NVM and can be adjusted based on the received data. A power limiting scheme can be used that limits the number of concurrent NVM operations performed so that a cumulative current consumption of the NVM does not exceed the adjusted current threshold.01-26-2012
20120023347METHODS AND SYSTEMS FOR DYNAMICALLY CONTROLLING OPERATIONS IN A NON-VOLATILE MEMORY TO LIMIT POWER CONSUMPTION - Systems and methods are disclosed for limiting power consumption of a non-volatile memory (NVM) using a power limiting scheme that distributes a number of concurrent NVM operations over time. This provides a “current consumption cap” that fixes an upper limit of current consumption for the NVM, thereby eliminating peak power events. In one embodiment, power consumption of a NVM can be limited by receiving data suitable for use as a factor in adjusting a current threshold from at least one of a plurality of system sources. The current threshold can be less than a peak current capable of being consumed by the NVM and can be adjusted based on the received data. A power limiting scheme can be used that limits the number of concurrent NVM operations performed so that a cumulative current consumption of the NVM does not exceed the adjusted current threshold.01-26-2012
20120023346METHODS AND SYSTEMS FOR DYNAMICALLY CONTROLLING OPERATIONS IN A NON-VOLATILE MEMORY TO LIMIT POWER CONSUMPTION - Systems and methods are disclosed for limiting power consumption of a non-volatile memory (NVM) using a power limiting scheme that distributes a number of concurrent NVM operations over time. This provides a “current consumption cap” that fixes an upper limit of current consumption for the NVM, thereby eliminating peak power events. In one embodiment, power consumption of a NVM can be limited by receiving data suitable for use as a factor in adjusting a current threshold from at least one of a plurality of system sources. The current threshold can be less than a peak current capable of being consumed by the NVM and can be adjusted based on the received data. A power limiting scheme can be used that limits the number of concurrent NVM operations performed so that a cumulative current consumption of the NVM does not exceed the adjusted current threshold.01-26-2012
20120023345MANAGING CURRENT AND POWER IN A COMPUTING SYSTEM - A system and method for efficient power transfer on a die. A semiconductor chip comprises on a die two or more computation units (CUs) utilizing at least two different voltage regulators and a power manager. The power manager reallocates power credits across the die when it detects an activity level of a given CU is below a given threshold. In response to receiving a corresponding number of donated power credits, each of the one or more selected CUs maintains a high activity level with a high performance P-state. When a corresponding workload increases, each CU maintains operation and an average power consumption corresponding to the high performance P-state by alternating between at least two different operational voltages. When the operational voltage drops during the alternation, the current drawn by the particular CU may exceed a given current limit. The power manager detects this current limit is exceeded and accordingly reallocates the power credits across the die.01-26-2012
20110302433CONTROL CIRCUIT OF POWER-SAVING SOCKET - A control circuit is provided for a power-saving socket and includes a central processing unit, a relay, a sensor unit, a time counting unit, a standby current setting unit, and a current monitoring unit. The central processing unit, upon receiving a human approaching signal from the sensor unit, issues a control signal to the relay to switch a contact of the relay to a closed condition, whereby an electrical appliance plugged to the socket is allowed to operate. When the electrical appliance plugged to the socket stays in a standby mode, the central processing unit receives a current value from the current monitoring unit, which is equal to or smaller than an appliance standby current level, and the time counting unit starts time counting for a specific period of time. Once the detected current value from the current monitoring unit maintains equal to or smaller than the appliance standby current level within the whole specific period of time, the central processing issues a control signal to the relay to switch the contact of the relay to an open condition, whereby power supplied to the electrical appliance plugged to the socket is completely cut off and the electrical appliance consumes no standby power. In this way, power saving can be achieved.12-08-2011
20080276106Data Conversion Apparatus and Data Conversion Method - It is aimed, for example, to reduce an amount of power consumption of an operation concerning data encryption or decryption and to make it difficult to perform a power analysis. In the case an exclusive OR operation between 32-bit input data and a 32-bit key is performed to obtain output data of 32 bits, the input data is kept in an input shift register 11-06-2008
20100064155MANAGING DEPENDENCIES AMONG OBJECTS OF A SYSTEM FOR ENERGY CONSERVATION - Under the present solution, dependencies and relationships of objects are stored and are updatable by consumers and optionally manufacturers through a local UI or web interface. These dependencies and relationships are stored in a “collection profile” which describes the capabilities of objects. When a request to reduce energy is received the system can query the collection profile to determine the downstream effect of reducing energy to a single object. The collection profile will identify which other objects rely on that object and would also need to have energy reduced. Being able to identify these linkages and effects of changes across the system will be critical for good energy management.03-11-2010
20110219246INFORMATION PROCESSING UNIT INCLUDING SMT-ENABLED CPU AND ITS POWER CONSUMPTION REDUCTION METHOD - An information processing unit includes a processing unit including a plurality of processor cores; and a power consumption reduction device configured to reduce power consumption of the processing unit. The power consumption reduction device measures the loads on threads that are running in the plurality of cores; checks the number of high load threads which are threads in a high load state and the number of low load threads which are threads in a low load state for each core, on the basis of the measuring results; selects, when there exists a core having high load threads whose number is less than a preset threshold on the number of high load threads, the core as a candidate core; and replaces the high load threads existing in the candidate core with the low load threads existing in other cores when the total number of the low load threads in a core other than the candidate core is not less than the number of the high load threads in the candidate core.09-08-2011
20090282276Peripheral device - A peripheral device for a host computer comprises: 11-12-2009
20100023786SYSTEM AND METHOD FOR REDUCTION OF ELECTRICITY PRODUCTION AND DEMAND - A system and method of intermittently reducing power demand loads to postpone an activation of an incremental power supply source or hasten the deactivation of a power source.01-28-2010
20100169680DISTRIBUTED TABLE-DRIVEN POWER MODE COMPUTATION FOR CONTROLLING OPTIMAL CLOCK and VOLTAGE SWITCHING - A method for computing the optimal power mode for a system-on-chip (SoC) in which both the clock and Vdd settings are controlled. Information from hardware blocks is synthesized into a global power mode for the entire SoC. The clocks can be disabled or enabled, and Vdd voltages can be disabled, set at a nominal operating level, and set at a retention level in which the state of memory and registers is retained.07-01-2010
20100169679CONTROLLING MULTILEVEL SHARED RESOURCES IN A COMPUTING DEVICE - A computing device is arranged to include a resource manager that controls access to all power resources on the device. The resource manager detects unused devices by counting the components that have requested usage and powers down unused resources, and for those resources offering multiple power levels, it guarantees that the operating level is no higher than is needed.07-01-2010
20100115311PCI Express System and Method of Transiting Link State Thereof - A PCI Express system and a method of transitioning link state thereof. The PCI Express system includes an upstream component, a downstream component and a link. The upstream component and the downstream component transmit data to each other via the link. When at least one of the upstream component and the downstream component stops data transmission under a normal working state and if the system idle time period reaches a threshold idle time, then transiting the link into a second link state05-06-2010
20100115309ANTICIPATION OF POWER ON OF A MOBILE DEVICE - A method of managing the power up of a device that has power down state; and at least two power up states, wherein the method includes the following steps: 05-06-2010
20100115308COMMUNICATION DEVICE AND POWER SUPPLY METHOD - Provided is a communication device capable of efficiently performing a power supply control when reducing power consumption by reducing the time during which the power is supplied. In the device, a CPU power saving control unit (05-06-2010
20100115307METHOD AND SYSTEM FOR ENERGY EFFICIENT NETWORKING VIA PACKET INSPECTION - Aspects of a method and system for energy efficient networking via packet inspection are provided. In various embodiments of the invention, a network device may include one or more circuits operable to inspect one or both of ingress and/or egress packets in the network device. The one or more processors may be operable to predict traffic in the network device based on the inspection. The one or more processors may be operable to, based on the predicted traffic, control a mode of operation of the network device to manage power consumption in the network device. A downlink path within the network device may be configured based on inspection of packets conveyed along a corresponding uplink path. An uplink path within the network device may be configured based on inspection of packets conveyed along a corresponding downlink path.05-06-2010
20100115305Methods and Apparatus to Provision Power-Saving Storage System - A power-saving computer system comprises a plurality of storage areas provided by one or more storage systems, including at least one first storage area which is always powered on and at least one second storage area which is periodically powered on and off according to a power control schedule. The at least one first storage area provides primary and secondary volumes of a first backup set that is scheduled as always paired. For a second backup set that is scheduled as normally suspended and resynchronized according to a backup schedule, a primary volume of the second backup set is included in the at least one first storage area and a secondary volume of the second backup set is included in the at least one second storage area. The at least one second storage area is powered on during every backup time for resynchronizing the second backup set according to the backup schedule.05-06-2010
20100115304POWER MANAGEMENT FOR MULTIPLE PROCESSOR CORES - Methods and apparatus relating to power management for multiple processor cores are described. In one embodiment, one or more techniques may be utilized locally (e.g., on a per core basis) to manage power consumption in a processor. In another embodiment, power may be distributed among different power planes of a processor based on energy-based considerations. Other embodiments are also disclosed and claimed.05-06-2010
20090150693METHOD FOR POWER CAPPING WITH CO-OPERATIVE DYNAMIC VOLTAGE AND FREQUENCY SCALING - A co-operative mechanism in which a service processor and a host CPU (with an OS running thereupon) work together to implement both power capping and utilization-based power savings, and with negligible side effects. Preferably, a 2-level modulation scheme is employed to undertake both power capping and energy savings simultaneously. Preferably, a frequency governor in the OS running on a host processor saves power by modulating p-states based on a shared table, thus avoiding SMIs. The range of the p-states in the shared table is adjusted to implement power capping in conjunction with power sensors in the system. This adjustment can be done either by a service processor, which can monitor total energy consumption, or an OS or software running on the host processor, which can read energy consumption from the service processor and adjust the shared table.06-11-2009
20080215902METHOD AND APPARATUS FOR NEGOTIATING POWER BETWEEN POWER SOURCING EQUIPMENT AND POWERABLE DEVICES - The present invention provides a power negotiation protocol that enables PDs and PSEs to negotiate the amount of inline power that a PD consumes and the corresponding PSE provides. This power negotiation allows the PDs provide fine-grained power consumption level to PSEs, and the PSEs are able to manage inline power efficiently using the negotiation protocol of the present invention. The PDs can ask the PSEs for more power when needed rather than having to constantly reserve the maximum amount of power they can consume at all times. Similarly, the PDs can release reservation of excess power when their respective power requirements decrease. The PSEs can limit the amount of power that can be consumed by the PD, thereby providing the ability for an administrator to control how much power a given PD can consume.09-04-2008
20090150692PORTABLE ULTRASOUND SYSTEM WITH VARIABLE POWER CONSUMPTION - Power is conserved in a portable, ultrasound imaging device (06-11-2009
20090150694INFORMATION PROCESSING APPARATUS AND POWER SUPPLY CONTROL METHOD - According to one embodiment, an information processing apparatus includes a housing, a power supply incorporated in the housing, a conversion unit which converts a voltage supplied from the power supply, a detection unit which detects a voltage supplied from the power supply, and a control unit which, when the voltage detected by the detection unit has become less than or equal to a specific threshold value, controls the power supply so as to lower not only a voltage output from the conversion unit by a specific percentage but also a voltage supplied to the detection unit by a specific percentage.06-11-2009
20120110358POWER CONTROL OF SECONDARY COPY STORAGE BASED ON JOURNAL STORAGE USAGE AND ACCUMULATION SPEED RATE - Arrangements having multiple second storage systems which each include a restore control unit for controlling restoration processing, in which a data element in a journal stored in a journal storage area is written into a secondary logical volume, and a storage device control unit for controlling a storage device in the second storage system. The restore control unit is provided with a function for suspending the restoration processing. A first value indicating the usage condition of the journal storage area in the second storage system is obtained, and the restore control unit suspends the restoration processing in accordance with the obtained first value. The storage device control unit then executes power saving on a storage device relating to the secondary logical volume.05-03-2012
20120110357COMMUNICATION APPARATUS, METHOD OF CONTROLLING THE SAME, AND STORAGE MEDIUM - A communication apparatus that is capable of communicating with network nodes more properly even when a control unit thereof shifts to a power-saving state. An NIC communicates with the network nodes via a network. The controller communicates with the network nodes via the communication unit. The controller stores node information on a network node that has transmitted data satisfying a predetermined condition, determines whether or not a shift condition for shifting the controller to a power-saving state is satisfied, and notifies the communication unit of the stored node information when it is determined that the shift condition is satisfied. The NIC stores node information notified by the controller, and executes communication processing based on the stored node information when the controller is in the power-saving state.05-03-2012
20120110356PROVIDING POWER OVER ETHERNET WITHIN A VEHICULAR COMMUNICATION NETWORK - A power distribution system within a vehicle operates to provide power over Ethernet to a plurality of network node modules coupled to a vehicular communication network of the vehicle.05-03-2012
20100125743ELECTRONIC DEVICE FOR REDUCING POWER CONSUMPTION DURING OFF OF COMPUTER MOTHERBOARD - The present invention discloses an electronic device for reducing power consumption during power off of computer motherboard. When the computer motherboard is at S5 soft off state of ACPI, it will make the computer motherboard enter like G3 mechanical off state of ACPI. The electronic device will cut off a portion of electric components consuming stand-by power on the computer motherboard, and only supply the stand-by power to the electronic device itself. Only after the user pressed the power button, the electronic device will connect the stand-by power to the computer motherboard.05-20-2010
20100122100TILED MEMORY POWER MANAGEMENT - A tiled memory and a method of power management within the tiled memory provides efficient use of energy within a computer storage, which may be a spiral cache memory. The tiled memory is power-managed by placing tiles in a power-saving state, which may be a state in which storage circuits are powered-down and network circuits are powered-up, so that for serially-connected tiles, information can still be forwarded by a tile in the power-saving state. The tiles may be power managed under direction of a central controlled, which sends commands to the tiles to enter and leave the power-saving state, or the tiles may self-manage their power-saving state according to activity measured at the individual tiles. Activity may be measured at the tiles of a spiral cache by comparing a hit rate and a push back rate to corresponding thresholds. The measurements may be used with either tile-managed or centrally-managed techniques.05-13-2010
20090094470Method and apparatus for power reduction in iterative decoders - There are provided a method, an apparatus and a computer program product for reducing power consumption in an iterative decoder. The apparatus includes a memory device and an iteration termination device. The memory device is for storing a bit number difference indicating a number of bits that are different between a decoded codeword for a current iteration and a decoded codeword for a previous iteration, for each iteration of the iterative decoder prior to a maximum number of iterations. The iteration termination device is for comparing the bit number difference to a pre-specified bit number difference threshold value, incrementing a confidence value when the bit number difference exceeds the pre-specified bit number difference threshold value, and terminating further iterations of the iterative decoder when the confidence value exceeds a pre-specified confidence threshold value.04-09-2009
20090292933ENHANCING POWER EFFICIENCY IN A WIRELESS INTERNET CARD - A wireless internet card to support enhancing power efficiency. The wireless internet comprises a front end comprising shared frequency resources. The wireless internet card also comprises a first wireless block and a second wireless block. While the first wireless block is in low-power mode, the second wireless block may get access to the shared radio frequency resources without waking-up the first wireless block thus enhancing the power efficiency. The second wireless block sends a request to the first wireless block to use shared radio frequency resources. A coexistence block coupled to the second wireless block and the first wireless block may wait for a time duration to elapse after the request is received and may allow the second wireless block to use the shared radio frequency resources if the time duration is elapsed.11-26-2009
20100083018FAN SPEED CONTROL OF SILICON BASED DEVICES IN LOW POWER MODE TO REDUCE PLATFORM POWER - In general, in one aspect, the disclosure describes running a cooling fan within a computer at low speed while the computer is in low temperature operations (e.g., idle). The operation of the cooling fan may reduce processor (CPU) temperature enough to decrease processor leakage power, offsetting the power consumption of the fan, and possibly resulting in a net system power reduction. The benefit at the platform level increases further when considering the low efficiency of voltage regulation (VR) in this lower power regime, and potentially reductions in other components (e.g., graphics processor). The optimal fan speed is the speed at which the overall system power is reduced the most (e.g., processor power savings is greater than fan power utilized). The optimal temperature may be determined dynamically during operation or may be determined in manufacturing and applied statically during operation.04-01-2010
20100146314Power aware software pipelining for hardware accelerators - Forming a plurality of pipeline orderings, each pipeline ordering comprising one of a sequential, a parallel, or a sequential and parallel combination of a plurality of stages of a pipeline, analyzing the plurality of pipeline orderings to determine a total power of each of the orderings, and selecting one of the plurality of pipeline orderings based on the determined total power of each of the plurality of pipeline orderings.06-10-2010
20100070785EAS POWER MANAGEMENT SYSTEM - A system and method for managing the power consumption of power-consuming devices. A remote device manager transmits power save schedules to a local device manager over a communication network such as the internet. The local device manager transmits power save commands to one or more devices in a location such as a store, over a dedicated local communication network. The commands instruct one or more devices to activate or de-activate its power save mode according to the power save schedules. The commands could be dependent upon one or more trigger events.03-18-2010
20100100752System and Method for Managing Power Consumption of an Information Handling System - An AC-to-DC power adapter provides DC power to an information handling system at a first higher DC voltage or a second lower DC voltage based upon a power state of the information handling system. For example, approximately 19 Volts DC power is provided if the information handling system is in an on state or if the information handling system is charging a battery. Approximately 13 Volts DC power is provided if the information handling system is in a reduced power state, such as an ACPI S3 state, with a battery having a substantially full charge.04-22-2010
20100083017ENERGY-EFFICIENT TRANSITIONING AMONG DEVICE OPERATING MODES - Methods and devices are provided for managing the transitions between operating modes in a data device. In an illustrative example, a method includes storing, in a control system for a device, a value for a first interval of time. The value indicates a minimum interval of time required for the device to remain in a lower power operating mode to provide energy savings at least equal to an energy cost associated with transitioning between the lower power operating mode and a higher power operating mode. The method further includes receiving a signal that instructs the device to transition from the lower power operating mode to the higher power operating mode. The method also includes ensuring that the device has remained in the lower power operating mode for at least as long as the first interval of time before it transitions to the higher power operating mode.04-01-2010
20090210727APPARATUS AND METHOD TO MANAGE POWER IN A COMPUTING DEVICE - A method to manage power in a computing device comprising a controller assembly and a storage assembly comprising a plurality of data storage devices, by selecting a processor parameter, establishing a threshold processor parameter value, establishing a threshold over-parameter time interval, selecting a data storage device parameter, and establishing a nominal data storage device parameter value. The method determines an actual processor parameter value. If the actual processor parameter value is less than or equal to the threshold processor parameter value, the method operates each of the plurality of data storage devices using the nominal data storage device parameter value. If the actual processor parameter value is greater than the threshold processor parameter value, then the method determines an actual over-parameter time interval. If the actual processor parameter value is greater than the threshold processor parameter value, and if the actual over-parameter time interval is greater than the threshold over-parameter time interval, then the method operates each of the plurality of data storage devices using a data storage device parameter value less than the nominal data storage device parameter value.08-20-2009
20090089597INFORMATION PROCESSING DEVICE, METHOD OF CONTROLLING THE DEVICE, COMPUTER READABLE MEDIUM, AND SECURITY SYSTEM - An information processing device includes a power control section and a function-suppressing section. The power control section switches between a predetermined mode and a low-power mode on the basis of a pre-specified setting condition relating to power consumption of the information processing device. The low-power mode is lower in electricity consumption quantities than the predetermined mode. When switching from the low-power mode to the predetermined mode in a period of operation of an external security apparatus, the function-suppressing section suppresses a part of functions of the device in the predetermined mode.04-02-2009
20090276650INFORMATION PROCESSING APPARATUS AND METHOD FOR CONTROLLING INFORMATION PROCESSING APPARATUS - An information processing apparatus includes a storage unit configured to store data, a supply unit configured to supply electric power to the storage unit, a determination unit configured to determine whether to cause the information processing apparatus to operate in a power saving mode, a measuring unit configured to measure an elapsed time after a power source of the information processing apparatus is turned on and until the determination unit determines to cause the information processing apparatus to operate in a power saving mode, and a control unit configured to control the supply unit to decrease electric power supplied from the supply unit to the storage unit at a timing determined based on the elapsed time and a predetermined reference time, in case that the determination unit determines to cause the information processing apparatus to operate in a power saving mode.11-05-2009
20090282275DEVICE AND A METHOD FOR MANAGING POWER CONSUMPTION OF A PLURALITY OF DATA PROCESSING UNITS - A device and a method for managing power consumption of a plurality of data processing units. A scheduler (11-12-2009
20110197083STORAGE SYSTEM COMPRISING POWER SAVING FUNCTION - A storage system constituted such that power saving to an administrator-desired storage device can be performed from a management device. That is, the storage system comprises a power-saving indication receiving section for receiving from a management console a power-saving indication specifying at least one storage device of a plurality of RAID groups, a plurality of logical units, and a plurality of physical storage devices; and a power-saving controller for saving on power to one or more physical storage devices corresponding to the storage device specified in this power-saving indication.08-11-2011
20080288795METHOD AND SYSTEM FOR REDUCING POWER CONSUMPTION OF STORAGE SYSTEM SERVING AS TARGET DURING REMOTE COPYING EMPLOYING JOURNAL - A second storage system comprises a restore control unit for controlling restoration processing, in which a data element in a journal stored in a journal storage area is written into a secondary logical volume, and a storage device control unit for controlling a storage device in the second storage system. The restore control unit is provided with a function for suspending the restoration processing. A first value indicating the usage condition of the journal storage area in the second storage system is obtained, and the restore control unit suspends the restoration processing in accordance with the obtained first value. The storage device control unit then executes power saving on a storage device relating to the secondary logical volume.11-20-2008
20120297222BRIDGES AND OPERATION METHODS THEREFOR - A bridge is provided. The bridge is coupled between a host and a peripheral apparatus and includes a connector, a power circuit, and a bridge circuit. The connector connects the host and comprises a power pin. The power circuit converts a supplying power to a driving voltage when the power circuit is enabled. The bridge circuit is powered by the driving voltage and performs a data transmission procedure between the host and the peripheral apparatus. An enabling terminal of the power circuit is coupled to the power pin to receive an enabling signal transmitted by the host through the power pin. The power circuit is enabled to provide the driving voltage when the enabling signal is provided with a first potential. The power circuit is disabled to stop providing the driving voltage when the enabling signal is provided with a second potential.11-22-2012
20080209242MODEM CARD CONFIGURED TO COMPENSATE FOR POWER SUPPLY - A modem card includes a connector configured to be detachably connected to a computer. The card also includes electronics configured to be powered by a power supply located in the computer and to transmit wireless signals to a communications network at a transmit power. The electronics are configured to vary the transmit power such that the transmit power does not exceed a maximum transmit power. Increases in the transmit power cause a drop in the voltage of the power. The electronics are also configured to determine an adjusted maximum transmit power. The adjusted maximum transmit power is a transmit power at which the signals can be transmitted to the communications system without the voltage dropping below a shut-down voltage. The electronics are also configured to reduce the value of the maximum transmit power to a value that that is less than or equal to the value for the adjusted maximum transmit power.08-28-2008
20090276647STORAGE DEVICE POWER CONSUMPTION STATE - In an embodiment, an apparatus is provided that includes circuitry to determine, at least in part, whether respective idle conditions have been satisfied for respective storage devices. If the circuitry determines, at least in part, that at least one respective storage device comprised in the respective storage devices satisfies at least one respective idle condition, the circuitry is also to issue at least one request that the at least one respective storage device enter, independently from at least one other respective storage device comprised in the respective storage devices, a respective relatively lower power consumption state compared to a respective relatively higher power consumption state. Of course, many alternatives, modifications, and variations are possible without departing from this embodiment.11-05-2009
20090276648QUAD-STATE POWER-SAVING VIRTUAL STORAGE CONTROLLER - A method, system and computer program product for reducing the collective power consumption of a plurality of storage devices including a plurality of associated storage volumes is provided. The storage volumes are grouped by a last access time according to a plurality of ranks. The plurality of ranks corresponds to a level of power consumption based on device activity. A volume of the plurality of storage volumes is moved between the plurality of ranks according to an access pattern of the volume.11-05-2009
20090276649METHOD, SYSTEM, AND PRODUCT FOR COMPUTATIONAL DEVICE POWER-SAVINGS - A user may invoke energy savings in the operation of a computational device performing a processing task. The device performs the processing task in the invoked energy savings mode and determines an energy amount expended by the device in performing the processing task in the energy savings mode, creating a net energy savings value as a difference between the energy amount expended and a standard energy expenditure amount predicted as required for the computational device to perform the processing task in high-performance mode. The device displays the net energy savings value to the user, with the user continuing the invoking of the energy savings mode or engaging another performance mode for the computational device as a function of the displaying.11-05-2009
20090282277LOW-POWER IDLE MODE FOR NETWORK TRANSCEIVER - Low-power idle mode for network transceivers. In one aspect, a method for reducing power consumption of a transceiver connected to a communication network includes entering a low-power idle mode, and in this mode, repeatedly turning off a transmitter of the transceiver and turning on the transmitter according to a pattern, where the pattern has been customized based on characteristics of the receiver. Turning off the transmitter conserves power consumed by the transceiver.11-12-2009
20090282273Method and System For Data Migration - A method and system for migrating source data from one or more databases to a destination database, wherein the destination database is selected based on power consumption of the destination database. A data migration server determines which destination database should be selected by selecting a number of candidates and comparing the power consumed, the available space and the maximum monthly power consumption limit. A user intervention policy is created to evaluate which data should be moved to a destination database. A “payback period” is calculated to determine the amount of time that will elapse before savings are realized.11-12-2009
20090282274Managing Power Consumption In A Data Center - Managing power consumption in a data center including reporting, by a circuit breaker communications device of one of the circuit breakers to the management module, a current power load of the circuit breaker, the report transmitted from the circuit breaker communications device through a power supply communications device of a power supply currently providing power to a particular computing device and through an out-of-band communications link to the management module, upon receiving the report of the current power load, determining, by the management module, whether the current power load of the circuit breaker is greater than a predetermined threshold; and if the current power load of the circuit breaker is greater than the predetermined threshold, reducing, by the management module, power consumption through the circuit breaker of the particular computing device.11-12-2009
20090282272Organizing Databases for Energy Efficiency - Embodiments of the invention provide techniques for optimizing database queries for energy efficiency. In general, a query optimizer is configured to compare energy requirements of query plans, and to select a query plan requiring minimal energy to execute. In one embodiment, the query optimizer may also compare time performance of the query plans, and may select a query plan by matching to a user preference for a relative priority between energy requirements and time performance.11-12-2009
20120297215INTELLIGENT USER DETERMINABLE POWER CONSERVATION IN A PORTABLE ELECTRONIC DEVICE - An electronic device includes at least one memory unit, a plurality of applications residing on at least one of the memory units, a display screen and a portable power supply. The electronic device also includes a power management module, which has a power monitor for monitoring an amount of remaining power available from the portable power supply. A processor is operatively associated with the memory units, display screen and portable power supply. The processor is configured to indicate to a user that one or more predetermined ones of the applications should not be used in order to conserve power when the remaining power falls below the first threshold level.11-22-2012
20120297219CIRCUIT AND METHOD OF DRIVING THE SAME - In order to reduce power consumption, an arithmetic circuit having a function of performing a logic operation processing based on an input signal, storing a potential set in accordance with the result of the logic operation processing as stored data, and outputting a signal with a value corresponding to the stored data as an output signal. The arithmetic circuit includes an arithmetic portion performing the logic operation processing, a first field-effect transistor controlling whether a first potential, which is the potential corresponding to the result of the logic operation processing is set, and a second field-effect transistor controlling whether the potential of the output signal data is set at a second potential which is a reference potential.11-22-2012
20120297217POWER CONTROLLER, POWER CONTROLLING DEVICE AND POWER-SAVING METHOD FOR POWER CONTROLLING DEVICE - The present disclosure illustrates a power controller adapted for controlling the operation of a power socket. The power controller includes a first signal transmission interface and a first micro-control unit. The first signal transmission interface receives power control flow data and a mode signal for the peripheral devices of a host computer. The first micro-control unit outputs a control signal in accordance with the received periphery power control flow data and the received mode signal from a host computer. Further, the first micro-control unit through the communication established between a first communication unit and the second communication unit of the power socket outputs a control signal to the power socket, in order to control the power socket to power or not to power the peripheral devices after a predetermined time delay.11-22-2012
20120297220ARITHMETIC CIRCUIT AND METHOD OF DRIVING THE SAME - In order to reduce power consumption, an arithmetic circuit having a function of performing a logic operation processing based on an input signal, storing a potential set in accordance with the result of the logic operation processing as stored data, and outputting a signal with a value corresponding to the stored data as an output signal. The arithmetic circuit includes an arithmetic portion performing the logic operation processing, a first field-effect transistor controlling whether a first potential, which is the potential corresponding to the result of the logic operation processing is set, and a second field-effect transistor controlling whether the potential of the output signal data is set at a second potential which is a reference potential.11-22-2012
20120297218CLOUD-BASED ENERGY-SAVING SERVICE SYSTEM AND METHOD - A cloud-based energy-saving service system and method are disclosed. The service system and method of this invention use the strong computation capabilities of the cloud computing technology and systems to determine the power consumption policies of the mobile devices and provide the policies to the mobile devices, whereby the mobile devices implement the power consumption policies to save its power consumptions. In one aspect, the invented system and method calculate and determine the backlight level polices for a particular video stream, then provide the policies information to the mobile devices for implementation. The policies information may be provided to the mobile devices independently or along with the video stream. The calculation of the backlight illumination levels may be done in advance or on remand.11-22-2012
20120297216DYNAMICALLY SELECTING ACTIVE POLLING OR TIMED WAITS - Dynamically selecting active polling or timed waits by a server in a clustered system includes determining a load ratio of a processor of the server, which is determined by calculating a ratio of an instantaneous run queue occupancy to a number of cores of the processor. The processor is occupied by a first runnable thread that requires a message response. A determination may be made whether power management is enabled on the processor, an instantaneous state may be determined based on the load ratio and whether power management is enabled on the processor, and a state process corresponding to the instantaneous state may be executed.11-22-2012
20110173469CONTROL APPARATUS AND CONTROL METHOD FOR VEHICLE - A vehicle equipped with a power source system including a master power source and a slave power source connected in parallel to a motor for running is provided. In a case where distribution of discharge power of the master power source and discharge power of the slave power source cannot be controlled, when a voltage difference between the respective power sources is greater than or equal to a certain value, an ECU sets a limit value on electric power supplied from the power source system to the motor at allowable discharge power of one of the power sources having a higher voltage, and limits a motor torque such that electric power discharged from the power source system to the motor does not exceed the set limit value.07-14-2011
20110173468Oversubscribing Branch Circuits While Lowering Power Distribution Costs - A mechanism is provided for oversubscribing branch circuits. An active energy management mechanism determines a cumulative wattage rating using power consumption information for a powered element, the power consumption information is for a primary and a redundant portion of the powered element. The active energy management mechanism determines a power reduction power cap to be used by the powered element in the event of a loss of either a primary or a redundant power source supplied to the powered element using the cumulative wattage rating, a branch circuit rating, and a circuit breaker rating for the powered element. The active energy management mechanism sends the power reduction power cap to the powered element in order that the powered element reduces power to the power reduction power cap in the event of the loss of either the primary power source or the redundant power source supplied to the powered element.07-14-2011
20110173467SYSTEM AND METHOD FOR CONTROLLING ENERGY USAGE IN A SERVER - A system for controlling energy usage in a server having a processor, where the system includes a memory for storing energy cost information, and a controller for determining a transaction rate for the processor. The controller is also for determining a cumulative of energy expended by the server based on the determined transaction rate for each of a number of available power level states (P-states) for operation of the processor, and for selecting one of the available P-states for operation of the processor based on the determined cumulative energy expended and the stored energy cost information.07-14-2011
20110208985Low Power Mode for a Network Interface - A network interface including: a medium access control device configured to operate at a first power state during an inactive power mode, and operate at a second power state during an active power mode; a physical layer device including (i) an energy detect module configured to detect energy on a medium during the inactive power mode, and (ii) an energy save module configured to time a first pre-determined period subsequent to the energy detect module detecting energy on the medium. The medium access control device is further configured to, subsequent to the energy detect module detecting energy on the medium, transition to the second power state of the active power mode, and communication with the medium access control device via the medium is enabled subsequent to expiration of the first pre-determined period.08-25-2011
20110208984PROTOCOL STACK POWER OPTIMIZATION FOR WIRELESS COMMUNICATIONS DEVICES - User experiences on wireless devices are affected by communication, computation, and user interface capabilities. Another key performance indicator of a wireless device is its battery life. A method, algorithm and apparatus for improving the communication, computation and user interface capabilities of a mobile device is disclosed, which requires the expenditure of less energy and increases battery life. The trade-off between battery life and user experience related to the communication capability is managed by a protocol stack power optimization algorithm that optimally allocates energy resources. The power management algorithm inputs and combines measurements made at various layers of the protocol stack to selectively control a set of actions impacting energy usage. The algorithm maps from a set of measurements to a set of actions that provides the best trade-off between user experience and energy consumption.08-25-2011
20100005327USB HOST CONTROLLER, INFORMATION PROCESSOR, CONTROL METHOD OF USB HOST CONTROLLER, AND STORAGE MEDIUM - A USB host controller includes: a suspend signal generating unit configured to generate a suspend signal for stopping the operation of a PLL circuit and output the signal to a physical layer including the PLL circuit if there is no communication between a USB device and a CPU in a first mode state of using a clock signal generated by the PLL circuit to transfer data between the USB device and the CPU; and a controller configured to generate the suspend signal for stopping the operation of the PLL circuit and output the signal to the physical layer in a connection waiting state in which the USB device is not connected and in a second mode state of transferring the data between the USB device and the CPU without using the clock signal generated by the PLL circuit.01-07-2010
20100005326Profiling An Application For Power Consumption During Execution On A Compute Node - Methods, apparatus, and products are disclosed for profiling an application for power consumption during execution on a compute node that include: receiving an application for execution on a compute node; identifying a hardware power consumption profile for the compute node, the hardware power consumption profile specifying power consumption for compute node hardware during performance of various processing operations; determining a power consumption profile for the application in dependence upon the application and the hardware power consumption profile for the compute node; and reporting the power consumption profile for the application.01-07-2010
20080244290POWER SAVING DEVICE CONTROLLED BY CONTROLLER OR DISK - This is a disk array device comprising means for operating a plurality of controller modules or disks, means for determining the a future operating state, based on operation history of the controller module or the disk and setting means for setting an operating state of the controller module or disk in such a way as to reduce its power consumption, based on the future operating state of the controller module or disk.10-02-2008
20080250257Energy efficient memory access technique for single ended bit cells - A method for conserving power in a device. The method generally includes the steps of (A) generating a polarity signal by analyzing a current one of a plurality of data items having a plurality of data bits, the polarity signal having an inversion bit indicating that the current data item is to be stored in one of (i) an inverted condition and (ii) a non-inverted condition relative to a normal condition such that a majority of the data bits have a first logic state, wherein reading one of the data bits having the first logic state consumes less power than reading one of the data bits having a second logic state, (B) selectively either (i) inverting the current data item or (ii) not inverting current the data item based on the inversion bit and (C) storing the current data item in a plurality of single-ended bit cells in the device.10-09-2008
20090100279COMPUTER PROVIDING MOTION PICTURE MODE AND METHOD OF SETTING UP SYSTEM-MODE WHILE PLAYING MOTION PICTURES - The present invention relates to a computer providing a motion picture mode including at least one storage unit configured to store system state information when the computer enters the motion picture mode and to store motion picture data, the storage unit including a random access memory (RAM) and a hard disk drive (HDD), a graphic processing unit configured to process image data and to display processed data on a screen, an audio outputting unit configured to process and output audio signals, and a control unit configured to control modules included in the computer and a system mode of the computer. The control unit is configured to determine whether conditions for entering the motion picture mode have been satisfied, and to change the system mode to the motion picture mode if the conditions for the motion picture mode are satisfied.04-16-2009
20090265568SYSTEM AND METHOD FOR MANAGING ENERGY CONSUMPTION IN A COMPUTE ENVIRONMENT - A system, method and computer readable medium are disclosed for reducing power consumption in clusters, grids, on-demand centers, and so forth. The principles disclosed herein can reduce both direct and indirect power consumption while maintaining either full cluster performance or adequate SLA based cluster performance. The method includes receiving at least one state data point regarding power consumption or temperature of at least one resource within the compute environment. Using intelligent policies to control power consumption, the method implements and interfaces with power managements facilities within the cluster, grid or on-demand center to either implement policies, make dynamic changes, make predictions or actions, and so forth to reduce one or more of the direct or indirect power consumption associated with a compute environment. The method can analyze current workload, future workload or both in taking energy saving actions in the environment. An aspect can also involve reporting state information and updating algorithms based on historical experience or outside sources of information such as the news or weather.10-22-2009
20090049318METHOD AND SYSTEM FOR CONTROLLING POWER IN A CHIP THROUGH A POWER-PERFORMANCE MONITOR AND CONTROL UNIT - A system and method for controlling power and performance in a microprocessor system includes a monitoring and control system integrated into a microprocessor system. The monitoring and control system includes a hierarchical architecture having a plurality of layers. Each layer in the hierarchal architecture is responsive to commands from a higher level, and the commands provide instructions on operations and power distribution, such that the higher levels provide modes of operation and budgets to lower levels and the lower levels provide feedback to the higher levels to control and manage power usage in the microprocessor system both globally and locally.02-19-2009
20080282097METHOD FOR INDICATING A POWER SWITCH OF A COMPUTER AND DEVICE THEREOF - A device for indicating the power switch of a computer is disclosed in the invention, which is applied in portable computers and indicates the position of a power switch of a portable computer when the computer is in shutdown status. The portable computer comprises at least a monitor and a main system, wherein an indicating device is also disposed in the portable computer; the indicating device includes a detecting unit, an illuminating element, and a controller. The detecting unit detects whether the monitor and the main system have been unclosed and separated from each other; if the detection result is “true”, a trigger signal is exported. The illuminating element is disposed in the proximity of the power switch on the portable computer. The controller accepts the trigger signal and adjusts the illumination of the illuminating element.11-13-2008
20080282099INFORMATION PROCESSING APPARATUS AND POWER SAVING CONTROL METHOD - According to one embodiment, an information processing apparatus includes a sound controller which reproduces a sound signal, and a sound driver which controls a drive of the sound controller. The sound driver includes a volume full-mute determination unit which determines whether or not the apparatus is set in a volume full-mute state of making zero sound output volume, and a control unit which determines whether or not the apparatus is set in a volume full-mute state by using the volume full-mute determination unit when a sound signal reproduce request is made while the sound controller has transferred to a power saving mode, and maintains the sound controller in a power saving mode when the apparatus is set in a volume full-mute state.11-13-2008
20080282098Semiconductor memory device and error correction method therof - A semiconductor memory device comprising: a memory array having a data area and a check code area; refresh control means which controls a refresh operation in a data holding state; operation means which executes an encoding operation for generating the check code using a bit string in the data area, and executes a decoding operation for performing the error detection/correction of the data using the check code; encode control means for controlling an encode process in which in a change to the data holding state, a first and second code are written in the check code area; and decode control means for controlling a decode process in which at the end of the data holding state, first and second bit error correction based on each code are alternately performed, and the first and the second bit error correction are performed at least twice respectively.11-13-2008
20080288796MULTI-PROCESSOR CONTROL DEVICE AND METHOD - A multi-processor control device according to an example of the invention comprises a cooperative control unit which determines priorities of requests issued from processors to a shared resource which are used to suppress a total power consumption of the processors within a range in which performance constraints of programs executed by the processors are satisfied, and determines a frequency of each of the processors so as to suppress the total power consumption within the range in which the performance constraint of the each program is satisfied, a first control unit which issues requests from the processors to the shared resource in accordance with priorities determined by the cooperative control unit, and a second control unit which controls the frequency of each of the processors in accordance with the frequency determined by the cooperative control unit.11-20-2008
20080235527Operation of computer display using auxiliary display controller - A computing apparatus includes a display, a Central Processing Unit (CPU) having active and switched-off operational states and an auxiliary display controller, which is active when the CPU is in the switched-off operational state. The computing apparatus further includes a switch, which is operative to connect the CPU to the display when the CPU is in the active operational state, so as to display first information produced by the CPU, and to connect the auxiliary display controller to the display when the CPU is in the switched-off operational state, so as to display second information produced by the auxiliary display controller.09-25-2008
20120297221ADDER - A circuit in which a storage function and an arithmetic function are combined is proposed by using a transistor with low off-state current for forming a storage element. When the transistor with low off-state current is used, electric charge can be held, for example, in a node or the like between a source or a drain of the transistor with low off-state current and a gate of another transistor. Thus, the node or the like between one of the source or the drain of the transistor with low off-state current and the gate of the another transistor can be used as a storage element. In addition, leakage current accompanied by the operation of an adder can be reduced considerably. Accordingly, a signal processing circuit consuming less power can be formed.11-22-2012
20120297223METHOD AND DEVICE FOR PROVIDING LOW POWER CONSUMPTION SERVICES AND COMMUNICATION SYSTEM - A method and a device for providing low power consumption services and a communication system are provided in the embodiments of the present disclosure. The method includes: receiving a low power consumption request sent by a terminal; when determining that the low power consumption request is supported, sending a first configuration parameter indicating that the low power consumption request is supported to a base station, so that the base station performs low power consumption communication with the terminal according to the first configuration parameter; and sending acknowledgement information indicating that the low power consumption request is supported to the terminal, in which the acknowledgement information carries a second configuration parameter, so that the terminal performs low power consumption communication with the base station according to the second configuration parameter. In this way, a network side provides services with different power consumption for different terminals according to requirements of terminals.11-22-2012
20120144217Dynamically Modifying A Power/Performance Tradeoff Based On Processor Utilization - In one embodiment, the present invention includes a multicore processor having a power controller with logic to dynamically switch a power management policy from a power biased policy to a performance biased policy when a utilization of the processor exceeds a threshold level. Thus at low utilizations, reduced power consumption can be realized, while at higher utilizations, greater performance can be realized. Other embodiments are described and claimed.06-07-2012
20100146315Software Selectable Adjustment of SIMD Parallelism - Selective power control of one or more processing elements matches a degree of parallelism to requirements of a task performed in a highly parallel programmable data processor. For example, when program operations require less than the full width of the data path, a software instruction of the program sets a mode of operation requiring a subset of the parallel processing capacity. At least one parallel processing element, that is not needed, can be shut down to conserve power. At a later time, when the added capacity is needed, execution of another software instruction sets the mode of operation to that of the wider data path, typically the full width, and the mode change reactivates the previously shut-down processing element.06-10-2010
20100146313POWER CONTROL - A method comprising: sensing an ambient temperature at an electronic apparatus; and switching between a first processing mode of the electronic apparatus and a second processing mode of the electronic device, in response to an increase in the ambient temperature above a threshold.06-10-2010
20110271127METHOD FOR MANAGING ENERGY CONSUMPTION FOR MULTIPROCESSOR SYSTEMS - The invention relates to a method for the on-line management of energy consumption for multiprocessor systems, the method executing at least one application according to a chart of tasks, wherein the method includes, for each application: a first phase for the off-line characterization of the variation of the potential rate of parallelism of execution of the tasks as a function of time, this characterization being based on the worst-case task execution times; and a second phase for the on-line detection and exploitation of the inactivity intervals and of the potential time excesses. A DPM technique makes it possible to determine the duration of the inactivity interval during which a processor may remain inactive according to the potential rate of parallelism characterized in the worst case.11-03-2011
20090055666POWER SAVINGS FOR A NETWORK DEVICE - An example embodiment is illustrated to reduce power consumed by inactive connections. This embodiment may include detecting a connection condition signifying a requirement for an active connection between one network device and another network device. Thereafter, an enable instruction may be retrieved based upon the detecting of the connection condition, and a port may be enabled based upon the retrieved enable instruction resulting in increased electrical power consumption by a port component. The electrical power consumption may be increased relative to a prior level of electrical power consumption in which the port is disabled.02-26-2009
20110016337SOFTWARE-BASED POWER CAPPING - The present invention relates to power consumption, and specifically an apparatus, method, and computer readable medium to manage and control power consumption in computer systems. Specifically, the present invention manages power consumption by controlling the types of threads that are executed by the processor. The present invention monitors the resources of the system to determine the power consumption of the system. If the power consumption is too high, the present invention issues more low power threads to be executed by the processor.01-20-2011
20120198253Operational Management Method for Information Processing System and Information Processing System - In an information processing system comprising an information processing equipment group and a facility equipment group, both an increase in performance and a reduction in power consumption are obtained, thereby achieving an efficient and flexible operational management. The plurality of information processing equipments are divided into a plurality of groups, each of which includes power feed equipments and cooling equipments. The operation management method for the information processing system includes: a procedure for acquiring, from each of the groups, operating information indicating the performances and the power consumptions of the information processing equipments, the power feed equipments, and the cooling equipments included in each of the groups; and another procedure for controlling, based on the operating information, the information processing equipments, the power feed equipments, and the cooling equipments included in each of the groups so that the performances with respect to the power consumptions become large.08-02-2012
20110271126Data processing system - A data processing apparatus is provided comprising first processing circuitry, second processing circuitry and shared processing circuitry. The first processing circuitry and second processing circuitry are configured to operate in different first and second power domains respectively and the shared processing circuitry is configured to operate in a shared power domain. The data processing apparatus forms a uni-processing environment for executing a single instruction stream in which either the first processing circuitry and the shared processing circuitry operate together to execute the instruction stream or the second processing circuitry and the shared processing circuitry operate together to execute the single instruction stream. Execution flow transfer circuitry is provided for transferring at least one bit of processing-state restoration information between the two hybrid processing units.11-03-2011
20090164812Dynamic processor reconfiguration for low power without reducing performance based on workload execution characteristics - A method, system and program are provided for dynamically reconfiguring a pipelined processor to operate with reduced power consumption without reducing existing performance. By monitoring or detecting the performance of individual units or stages in the processor as they execute a given workload, each stage may use high-performance circuitry until such time as a drop in the throughput performance is detected, at which point the stages are reconfigured to use lower-performance circuitry so as to meet the reduced performance throughput requirements using less power. By configuring the processor to back off from high-performance designs to low-performance designs to meet the detected performance characteristics of the executing workload warrant, power dissipation may be optimized.06-25-2009
20090070606Apparatus and method for dynamic backlight-control - An apparatus and a method for dynamic backlight-control in an electronic device are provided. The apparatus includes a battery power-level detection unit and a controlling unit. The battery power-level detection unit is used for detecting the power level of a battery in the electronic device. The controlling unit is coupled to a backlight unit of a display device in the electronic device and the battery power-level detection unit for adjusting the illumination of the backlight unit according to the power level of the battery and an image-content lightness of an image inputted into the display device.03-12-2009
20090164814Hardware driven processor state storage prior to entering a low power mode - A data processing apparatus comprising: a processor for processing data, said processor comprising memory interface logic for controlling transfer of data to a memory, said processor being powered in a first power domain; a memory for storing data processed by said processor said memory being powered in a second power domain; a system bus coupled to said processor and said memory and operable to transfer data between said processor and said memory in response to memory transfer requests issued upon said system bus by said memory interface logic during normal processing operation of said processor and said memory; wherein said processor is responsive to a low power request indicating said data processing apparatus should enter a low power mode to: control transfer of state data indicating a current state of said processor to said memory via said system bus using said memory interface logic, said state data being sufficient data to restore said processor to an equivalent program state following exit from said low power mode; store said state data in said memory; and power down said first power domain.06-25-2009
20090164816DATA PROCESSING APPARATUS AND DATA PROCESSING METHOD - When a packet received in a deep sleep mode matches a packet stored in a WOL-pattern storage region, a network portion performs reply processing suited for the matched packet after returning a power supply mode of a power supply unit from the deep sleep mode to a normal mode. When the packet received in the deep sleep mode matches a packet stored in a proxy-response-pattern storage region, the network portion performs reply processing suited for the matched packet while maintaining the power supply mode of the power supply unit at the deep sleep mode.06-25-2009
20090164813TECHNIQUES TO MANAGE POWER BASED ON MOTION DETECTION - Techniques to manage power based on motion detection are described. For example, a mobile computing device may include a radio module having a communications failure event detector operative to detect a communications failure event, a motion detector operative to detect motion, and a processor coupled to the radio module and the motion detector. The processor operative to execute a scan control module to determine the mobile computing device is moving or stationary, and control scanning operations by the radio module in accordance with the determination. Other embodiments are described and claimed.06-25-2009
20090164815DATA TRANSFER CONTROLLING DEVICE AND IC CARD - A data transfer controlling device is mounted in an IC card having: a communication device for data communication with an external device; a memory device for storing data received from and transmitted to the external device; and an operation processing device for controlling the memory device and the communication device, and controls a data transfer process. The controlling device comprises: a status information acquiring section for acquiring status information including at least error detection information from the communication device; a determination section for determining whether or not the data transfer process can be executed based on the status information acquired by the status information acquiring section when the data transfer process is being executed; and a data transfer process executing section for executing the data transfer process in accordance with a result of determination as to whether or not the data transfer process can be executed by the determination section.06-25-2009
20090144570SYSTEM AND METHOD FOR PREVENTING USER O.S. IN VMM SYSTEM FROM DEENERGIZING DEVICE BEING USED BY SERVICE O.S. - A call from a user operating system (UOS) to BIOS to configure a connected device into a reduced energy consumption mode is routed through a virtual machine monitor (VMM). The VMM determines whether a service O.S. (SOS) is in need of the device and if so the VMM informs the UOS that the device has been configured as ordered, while allowing the SOS to complete its task with the device. If the SOS is not in need of the device, or at the completion of the SOS task with the device, the VMM passes the call to ACPI/BIOS to configure the device in the demanded energy consumption mode.06-04-2009
20090138736POWER MANAGEMENT METHOD FOR HANDHELD ELECTRONIC DEVICE - A power management method for a handheld electronic device is provided. In the present method, a G-sensor is used for detecting a normal vector of a plane of the handheld electronic device. The normal vector is then determined whether being directed toward a downward direction. When the normal vector is determined as being directed toward the downward. Accordingly, the handheld electronic device can be controlled to enter the power saving mode timely according to the positioned state of the device without going through complicated procedures such as operating a menu, so as to provide a more intuitive and convenient way for power management.05-28-2009
20090049316SYSTEM AND METHOD OF MODIFYING POWER USE WITHIN AN INFORMATION HANDLING SYSTEM - A system and method of modifying power use within an information handling system is disclosed. In one form, a method of managing power within an information handling system is disclosed. The method can include establishing a threshold power level of a first information handling system, and detecting a first power demand of a first operating state in excess of the threshold power level. The method can also include detecting a request to invoke a first forced reduced power state of the first information handling system, and determining a first alternative power state different from the threshold power level and the first forced reduced power state. The method can further include initiating the first alternative power state.02-19-2009
20090177902REDUCING POWER CONSUMPTION OF A MICROPROCESSOR - Methods and apparatus, including computer program products, implementing and using techniques for reducing the power consumption of a microprocessor. One or more signal transitions in an instruction set of a microprocessor are profiled. A probability of occurrence is assigned to each instruction in the instruction set. A binary operation code is assigned to each instruction, based on the probability of occurrence for the instruction. The instructions having the highest probability of occurrence are assigned operation codes that require fewer signal transitions. As a result, the power consumption of the microprocessor is reduced.07-09-2009
20090019297Semiconductor device - Semiconductor device reduces power consumption of total display system. A display memory 01-15-2009
20090063881Low-overhead/power-saving processor synchronization mechanism, and applications thereof - A low-overhead/power-saving processor synchronization mechanism, and applications thereof. In an embodiment, the present invention provides a processor having a load-linked register. The processor implements instructions related to the load-linked register. A first instruction, when executed by the processor, causes the processor to load a first value specified by the first instruction in a first register of a register file and to load a second value in the load-linked register. A second instruction, when executed by the processor, causes the processor to suspend execution of a stream of instructions associated with the load-linked register if the second value in the load-linked register is unaltered until the second value in the load-linked register is altered. A third instruction, when executed by the processor, causes the processor to conditionally move a third value to a memory location specified by the third instruction and to move a value representing the state of the load-linked register to the third register.03-05-2009
20090055665Power Control of Servers Using Advanced Configuration and Power Interface (ACPI) States - A method of managing power consumption by a plurality of blade servers within a processing system. The speed of at least one of the plurality of blade servers is reduced in response to the processing system reaching a power or thermal threshold. At least one of the plurality of blade servers is identified as not being critical to maintain in a working state and the critical blade server is put in a sleep state. A satellite management controller may control blade server power consumption and heat generation in various ways that combine processor speed-stepping and control of processor sleep states. Known sleep states save more power than speed-stepping by turning off the processor and/or volatile memory. The processor speed and sleep-states of at least one non-critical blade server, and optionally the processor speed of a critical processor, may be changed in order to control the power consumption below a power threshold or control the temperature below a thermal threshold.02-26-2009
20090144571INTEGRATED CIRCUIT APPARATUS - An integrated circuit apparatus may include: a plurality of power domains to which power voltage is separately supplied; a plurality of circuit macros belonging to a plurality of the power domains respectively; a plurality of power switches to conduct or to substantially block power coming from a power circuit and going to the plurality power domains, respectively; and a power-controlling unit including a controller to control the plurality of power switches, a power domain register to store power domain data which corresponds to a plurality of external interrupt signals that are indicative of power domains that are to be activated; and an interrupt handler to respond to the external interrupt signals by delivering the power domain data corresponding to the external interrupt signals to the controller, the controller being operable to turn on/off the power switches corresponding to the power domain data, respectively.06-04-2009
20090024857Reducing Power Consumption of Mirrored RAID Subsystems - Power consumption reduction of a mirrored RAID storage subsystems is disclosed, wherein data are mirrored to a secondary mirror disk system, the secondary mirror disk system alternates between an operational stage and a power-save stage, wherein data to be mirrored to the secondary mirror disk system is saved in a substantially always operational pre-stage storage if the secondary mirror disk system is in a power save stage and subsequently moved from the pre-stage storage to the secondary mirror disk system when the secondary mirror disk system is operational.01-22-2009
20090024856Systems, methods and devices for limiting current consumption upon power-up - Embodiments are described including those for controlling peak current consumption of a multi-chip memory package during power-up. In one embodiment, each memory device of the multi-chip package includes a power level detector used to compare an internal voltage signal to a threshold. A current limiter controls the ramping rate of the internal voltage signal in response to the power level detector as the internal voltage signal ramps up towards the threshold.01-22-2009
20110225438COMPUTER PROGRAM PRODUCT FOR CONTROLLING A STORAGE DEVICE HAVING PER-ELEMENT SELECTABLE POWER SUPPLY VOLTAGES - A computer program product for controlling a storage device using per-element selectable power supply voltages provides energy conservation in storage devices while maintaining a particular performance level. The storage device is partitioned into multiple elements, which may be sub-arrays, rows, columns or individual storage cells. Each element has a corresponding virtual power supply rail that is provided with a selectable power supply voltage. The power supply voltage provided to the virtual power supply rail for an element is set to the minimum power supply voltage unless a higher power supply voltage is required for the element to meet performance requirements. A control cell may be provided within each element that provides a control signal that selects the power supply voltage supplied to the corresponding virtual power supply rail. The state of the cell may be set via a fuse or mask, or values may be loaded into the control cells at initialization of the storage device.09-15-2011
20090049317Managing Power in a Parallel Computer - Managing power in a parallel computer, the parallel computer including a power supply and a plurality of compute nodes, the plurality of compute nodes powered by the power supply through a plurality of DC-DC converters, each DC-DC converter supplying current to an assigned group of compute nodes, each DC-DC converter having a current sensor. Embodiments include monitoring, by the current sensor, an amount of current supplied by that DC-DC converter to its assigned group of compute nodes; determining, by at least one DC-DC converter, that the amount of current supplied is greater than a predefined threshold value; sending, by the at least one DC-DC converter to the plurality of compute nodes, a global interrupt, including notifying the plurality of compute nodes to reduce power consumption; and reducing, by the plurality of compute nodes in accordance with power consumption ratios, power consumption of the compute nodes.02-19-2009
20090070605System and Method for Providing Memory Performance States in a Computing System - A system and method is disclosed for providing memory performance states in a computing system. The operating system power management component of the computing system establishes a set of performance states, with each performance state being defined by a number of factors, including the core frequency of memory. The operating system power management component also defines the number of memory performance states that are supported by the computing system and the number of supported memory performance states that are available for use by the computing system. Whether a supported memory performance state is available is dependent upon a measure of the power being consumed by the computing system, the thermal output of the computing system, or both measures.03-12-2009
20120144216TRANSACTION LEVEL SYSTEM POWER ESTIMATION METHOD AND SYSTEM - A transaction level (TL) system power estimation method and system are provided. The method includes inserting at least a characteristic extractor into an electronic device of a target system. The characteristic extractor extracts at least a power characteristic of the electronic device when a TL simulation is proceeding. The power characteristic provided from the characteristic extractor is converted to at least a power consumption value by using a power model. The power consumption value is recorded into a power database, for analyzing power consumption of the whole target system. In some embodiments, the TL system power estimation method and system can be applied in the target system with dynamic power management. The TL system power estimation method and system also can be used with a high-level synthesizer to develop the power-aware electronic device in a short time.06-07-2012
20090240964Method and apparatus for holistic power management to dynamically and automatically turn servers, network equipment and facility components on and off inside and across multiple data centers based on a variety of parameters without violating existing service levels - The present invention provides a METHOD AND APPARATUS FOR HOLISTIC POWER MANAGEMENT TO DYNAMICALLY AND AUTOMATICALLY TURN SERVERS, NETWORK EQUIPMENT AND FACILITY COMPONENTS ON AND OFF INSIDE AND ACROSS MULTIPLE DATA CENTERS BASED ON A VARIETY OF PARAMETERS WITHOUT VIOLATING EXISTING SERVICE LEVELS. This method and apparatus pertains specifically to a method and apparatus for power management in data centers and large server environments.09-24-2009
20120079300ELECTRONIC APPARATUS - A power-supply connection portion connects a power supply and a main body device. Operation information for operating the apparatus main body is stored in a volatile memory. A power feeder feeds power fed from the power supply, to the volatile memory. A non-operation state request receiver receives a non-operation state request for moving the apparatus main body from an operation state to a non-operation state. When the non-operation state request is received by the non-operation state request receiver, a power-feeding controller performs control such that the power feeder feeds the power to the volatile memory for a predetermined period. A mode determiner determines a mode of the non-operation state request. A changer is provided with a setter which sets the predetermined period depending on the mode determined by the mode determiner.03-29-2012
20120079299Enclosure Power Controller - A system and method for controlling power consumption is described herein. A computer system includes an enclosure. The enclosure is configured to contain a plurality of removable compute nodes. The enclosure includes a power controller configured to individually control an amount of power consumed by each of the plurality of removable compute nodes. The power controller provides a plurality of power control signals. Each power control signal is provided to and controls the power consumption of one of the plurality of removable compute nodes.03-29-2012
20120079298ENERGY EFFICIENT HETEROGENEOUS SYSTEMS - Low-power systems and methods are disclosed for executing an application software on a general purpose processor and a plurality of accelerators with a runtime controller. The runtime controller splits a workload across the processor and the accelerators to minimize energy. The system includes building one or more performance models in an application-agnostic manner; and monitoring system performance in real-time and adjusting the workload splitting to minimize energy while conforming to a target quality of service (QoS).03-29-2012
20080263376Frequency and voltage scaling architecture - A method and apparatus for scaling frequency and operating voltage of at least one clock domain of a microprocessor. More particularly, embodiments of the invention relate to techniques to divide a microprocessor into clock domains and control the frequency and operating voltage of each clock domain independently of the others.10-23-2008
20080263375Method And System For Managing Activities In A Battery Powered Device - A method for managing activities in a battery powered device includes receiving activity information, a start time that is different from a present time, and either a duration or an end time for performing the desired activity. The method also includes determining a required energy amount needed for performing the desired activity, determining an available energy amount for the battery powered device, determining a projected energy consumed by the battery powered device from the present time to the start time, and determining a residual energy of the battery powered device based on a difference of the device's available energy amount and a sum of the required energy and projected energy consumed by the battery powered device from the present time to the start time. An indication is provided that includes information relating to the desired activity and to whether the determined residual energy is sufficient to perform the desired activity.10-23-2008
20090063880System and Method for Providing a High-Speed Message Passing Interface for Barrier Operations in a Multi-Tiered Full-Graph Interconnect Architecture - A method, computer program product, and system are provided performing a Message Passing Interface (MPI) job. A first processor chip receives a set of arrival signals from a set of processor chips executing tasks of the MPI job in the data processing system. The arrival signals identify when a processor chip executes a synchronization operation for synchronizing the tasks for the MPI job. Responsive to receiving the set of arrival signals from the set of processor chips, the first processor chip identifies a fastest processor chip of the set of processor chips whose arrival signal arrived first. An operation of the fastest processor chip is modified based on the identification of the fastest processor chip. The set of processor chips comprises processor chips that are in one of a same processor book or a different processor book of the data processing system.03-05-2009
20110231684Methods and apparatus for managing and controlling power consumption and heat generation in computer systems - A method for reducing power consumption and heat generation in a computer system employs a substitute idle task that puts the processor into a dormant mode, e.g., sleep, nap, or doze mode. The substitute idle task replaces a conventional operating system idle task. The substitute idle task may have a low priority, such as that of the conventional idle task, which it replaces. At each occurrence of a quantum interrupt, a task scheduler schedules applications for execution during the accompanying time slice. After the scheduled applications are done, the substitute idle task is executed. The dormant mode caused by the idle task reduces the system's power consumption. The idle task may also have a high priority and be designed to run for a predetermined percentage of time. As the processor spends the predetermined percentage of time in the dormant mode, known power consumption reduction may be guaranteed in the system.09-22-2011
20110231683STORAGE APPARATUS AND A DATA MANAGEMENT METHOD EMPLOYING THE STORAGE APPARATUS - A storage apparatus is provided that is capable of reducing data maintenance management costs with a performance that is both highly reliable and fast. The present invention is storage apparatus where an intermediary device is arranged between a controller and a plurality of disk devices of different performances arranged in a hierarchical manner. The controller unit carries out I/O accesses to and from the disk devices via the intermediary devices based on access requests sent from host apparatus. The intermediary device includes a power saving control function for the disk device and carries out operation control such as spin off and spin up of disk devices in accordance with conditions set in advance.09-22-2011
20110231682POWER MANAGEMENT METHOD AND RELATED POWER MANAGEMENT SYSTEM - A power management method is disclosed. The power management method comprises the step of a computer system checking existence of a manufacturing identifier (ID) of a human interface device (HID) when the computer system is operated in a first mode; the computer system continuously detecting whether the HID exist when the manufacturing ID exists; the computer system starting a timer when the computer system detects that the HID does not exist; the computer system entering a second mode when the timer expires; the HID determining whether the computer system is operated in the second mode, when plugged into the computer system; the HID performing state transition on the computer system when determining that the computer system is in the second mode; and the computer system entering the first mode when detecting the state transition.09-22-2011
20090187776SERVER POWER CONSUMPTION CONTROLLER, AND METHOD AND COMPUTER PROGRAM FOR CONTROLLING SERVER POWER CONSUMPTION - The power consumption controller of the present invention controls the power consumption of a physical server having a virtual server at an appropriate value. A management server determines an unused CPU budget from the difference between the total amount of the loads of respective virtual servers and a hypervisor and the total CPU budget of the physical server. The management server determines the drive frequency of the CPU inside the physical server based on the unused CPU budget. The management server changes a CPU allocation budget related to the respective virtual servers and the hypervisor in accordance with the determined drive frequency. The hypervisor controls the CPU allocation budget and drive frequency in accordance with an indication from the management server. Consequently, the power consumption of the physical server is controlled.07-23-2009
20090204827SYSTEM AND METHOD FOR ENERGY SAVINGS ON A PHY/MAC INTERFACE FOR ENERGY EFFICIENT ETHERNET - A system and method for energy savings on a PHY/MAC interface for energy efficient Ethernet. Power savings for a PHY due to low-link utilization can also be realized in the higher layer elements that interface with the PHY. In one embodiment, subrating is implemented on a MAC/PHY interface to match a subrating of the PHY with a remote link partner. This subrating is less than the full capacity rate and can be zero.08-13-2009
20090210731CIRCUIT FOR AND METHOD OF MINIMIZING POWER CONSUMPTION IN AN INTEGRATED CIRCUIT DEVICE - A method of minimizing power consumption in an integrated device is disclosed. The method comprises providing a plurality of circuit blocks having circuits for performing logic functions, wherein each circuit block consumes power in a static state; coupling one of a plurality of operating voltages to each circuit block of the plurality of circuit blocks; enabling a reduction of power consumed by a first set of circuit blocks by way of a first power reduction signal; and enabling a reduction of power consumed by a second set of circuit blocks by way of a second power reduction signal. A circuit for minimizing power consumption in a device is also disclosed.08-20-2009
20090210730METHOD AND SYSTEM FOR POWER CONSERVATION IN A HIERARCHICAL BRANCH PREDICTOR - A method and system for power conservation in a hierarchical branch predictor system are provided. The method includes addressing multiple branch predictors, each of the branch predictors having various sizes of hierarchical storage and storing information about previously encountered branch instructions. In response to receiving a first branch prediction from one of the branch predictors, the method includes comparing the first branch prediction with previously stored branch predictions to determine the existence of a branch prediction loop, the branch prediction loop including a sequence of branch predictions that repeat as long as constituent predictions of the branches remain unchanged. Upon determining that a branch prediction loop exists, the method includes associating the branch prediction loop with the branch predictors that provided each branch prediction, and activating power saving to the branch predictors that are not associated with the branch prediction loop.08-20-2009
20090313490Power controller in information processor - A power controller (12-17-2009
20110225439SIGNAL CORRECTION APPARATUS - A signal correction apparatus receives an input audio signal (serving as a first sound reception means). The signal correction apparatus computes, at every frequency, first power that indicates magnitude of sound represented by the input audio signal (serving as a first power computation means). The signal correction apparatus estimates a correction function that is a continuous function defining a relation between each frequency and a correction coefficient used to approximate the first power computed at that frequency to the reference power predetermined for that frequency (serving as a correction function estimation means). The signal correction apparatus multiplies the computed first power by the correction coefficient acquired in accordance with the relation defined by the estimated correction function so as to correct the first power at every frequency (serving as a power correcting means).09-15-2011
20090204828HYBRID TECHNIQUE IN ENERGY EFFICIENT ETHERNET PHYSICAL LAYER DEVICES - A hybrid technique in energy efficient Ethernet (EEE) physical layer devices (PHYs). A hybrid approach is defined that combines multiple low power modes. In one embodiment, the hybrid approach uses low power idle (LPI) and subset PHY techniques that can be selectively activated.08-13-2009
20090204826Method for Power Conservation in Virtualized Environments - A system and method for enabling power conservation when making placement and relocation decisions. More specifically, a virtualized environment power conservation module enables power conservation when making placement and relocation decisions within a virtual environment. The virtualized environment power conservation module assigns virtual machines among a group of physical hosts in order to minimize the net power consumption. The virtualized environment power conservation module makes use of server power profile or real time power consumption data to make power consumption aware Virtual Machine assignment decisions. In certain embodiments, a server system exposes real power consumption (e.g. System Watts, Cumulative kWh. etc.) via system management interfaces. Additionally, in certain embodiments, the server systems may expose real power consumption via standard power profiles. These systems leverage PMBus-enabled power supplies to read the power metric information.08-13-2009
20090210728Circuits and Methods for Sleep State Leakage Current Reduction - A circuit for reducing sleep state current leakage is described. The circuit includes a hardware unit selected from at least one of a latch, a flip-flop, a comparator, a multiplexer, or an adder. The hardware unit includes a first node. The hardware unit further includes a sleep enabled combinational logic coupled to the first node, wherein a value of the first node is preserved during a sleep state.08-20-2009
20090249095User driven power conservation in processor-based systems - A processor-based system may receive user inputs to determine how to achieve power conservation needs or preferences of the user. The user may supply inputs in terms of preferences and how power conservation might be achieved. In addition, the user may provide needs or goals for the system in terms of operating life while under battery power. The system may then develop a plan to achieve those needs and preferences and, in some embodiments, may offer that plan up to the user for approval.10-01-2009
20090249094POWER-AWARE THREAD SCHEDULING AND DYNAMIC USE OF PROCESSORS - Techniques and apparatuses for providing power-aware thread scheduling and dynamic use of processors are disclosed. In some aspects, a multi-core system is monitored to determine core activity. The core activity may be compared to a power policy that balances a power savings plan with a performance plan. One or more of the cores may be parked in response to the comparison to reduce power consumption by the multi-core system. In additional aspects, the power-aware scheduling may be performed during a predetermined interval to dynamically park or unpark cores. Further aspects include adjusting the power state of unparked cores in response to the comparison of the core activity and power policy.10-01-2009
20090254767Energy Management - A data processing apparatus and methods are disclosed. The data processing apparatus comprises: data processing elements operable to process data; an energy management unit operable to generate energy management information indicative of an energy state of at least one of the data processing elements when processing said data; and logic operable to receive said energy management information and to generate energy management information items associating said energy state with the processing of said data. The information items can provide visibility of how the Energy State of the data processing elements vary in response to the processing of data. Providing this visibility of the Energy State can advantageously enable more detailed the energy management to be performed and the Energy State of the data processing elements to be optimized.10-08-2009
20090254768Non-Identical Power Supply Units for Higher Efficiency in Redundant Mode - A power supply system for a server includes a first power supply, a second power supply, a first variable slope circuit, and a second variable slope circuit. The first power supply unit is adapted to activate if a load is below a predetermined level, and adapted to deactivate if the load is above the predetermined level. The second power supply unit is adapted to activate if the load is above the predetermined level, and adapted to deactivate if the load is below the predetermined level. The first and second variable slope circuits are adapted to receive information about the load applied to the power supply units. The first variable slope circuit is adapted to deactivate the first power supply unit if the load is above the predetermined level. The second variable slope circuit is to deactivate the second power supply unit if the load is below the predetermined level.10-08-2009
20100162017SYSTEMS AND METHODS FOR IMPLEMENTING STANDBY FUNCTIONALITY USING FIELD PROGRAMMABLE GATE ARRAYS - The disclosed embodiments relate to an electronic device comprising a logic circuit comprising a plurality of logic banks. In accordance with embodiments of the present technique, at least one of the plurality of banks is configured to provide standby functionality to the electronic device. The electronic device further comprises a power supply coupled to the logic circuit, configured to power the at least one bank without powering all of the plurality of banks.06-24-2010
20090259861POWER MANAGEMENT IN A DATA PROCESSING DEVICE HAVING MASTERS AND SLAVES10-15-2009
20080307243Anticipatory Power Management for Battery-Powered Electronic Device - Methods and apparatus for managing power consumption of a battery-powered electronic device are disclosed. According to one embodiment, power management can take action to reduce power consumption to accommodate estimated power requirements. According to another embodiment, power management can notify a user when a power deficiency is anticipated. According to still another embodiment, power management can advise a user to charge a battery of the battery-powered electronic device. According to still another embodiment, a user can influence power management by user selections.12-11-2008
20080307241Microcontroller circuit and power saving method thereof - A microcontroller circuit provides proper clocks to a central processing unit of a microcontroller and peripherals according to a power saving mode and operating conditions of the peripherals. The microcontroller circuit comprises a prescaler, a second multiplexer, a central processing unit, a first switch, a second switch, a first peripheral, and an execution unit. The execution unit is installed in the central processing unit and used for controlling the first switch and the second switch. The switches control the transmission of clocks according to the power saving mode operated by the microcontroller circuit, so that the central processing unit and each peripheral can work with a proper clock to reduce power use.12-11-2008
20100169681METHOD AND SYSTEM FOR REDUCING POWER CONSUMPTION OF ACTIVE WEB PAGE CONTENT - A method and system for reducing power consumption of active web page content includes identifying those threads associated with active advertisement components of the web page and synchronizing the wakeup periods of such threads such that the total number of wakeups over a given period is reduced.07-01-2010
20100162015ENERGY SAVING SUBSYSTEM FOR AN ELECTRONIC DEVICE - The instant invention broadly contemplates an energy saving subsystem comprising a secondary CPU that utilizes less power than a main CPU, thereby allowing an electronic device (e.g. a laptop PC) having the secondary CPU to use less power and run for longer periods of time on a limited power supply. Thus, the invention permits the electronic device to be utilized for extended periods and extends the battery life.06-24-2010
20100262849ELECTRONIC DEVICE FOR REDUCING POWER CONSUMPTION DURING SLEEP MODE OF COMPUTER MOTHERBOARD AND MOTHERBOARD THEREOF - A power-saving electronic device for use with a computer motherboard in a “suspend to memory” state is disclosed. The power-saving electronic device enables compulsory interruption of power supply to a south bridge chip and a super input output (SIO) chip of the computer motherboard in the “suspend to memory” state, such as an S3 state of Advanced Configuration and Power Interface (ACPI), so as to save power. After a user presses a power switch, the power-saving electronic device enables the south bridge chip and SIO chip to be powered on by a standby power supplied thereto and enables the computer motherboard to remain capable of awakening and resuming from the S3 state.10-14-2010
20100169682NETWORK APPARATUS - An apparatus includes a switching unit to output data input from an input unit to an output unit to which the data is to be output, and an input control unit, wherein input units included in a same group among a plurality of input units each have a buffer to store data received from another apparatus; a multiplexer connected to the buffer and to a buffer in another input unit in the same group, and capable of selectively outputting data; and an input data processing portion connected to the multiplexer and performing specific input data processing on data input from the multiplexer and outputting data after the specific input data processing to the switching unit, wherein the input control unit controls a data output selection of the multiplexer and controls supply of power or supply of a clock signal to the multiplexer and the input data processing portion.07-01-2010
20100185883POWER MANAGEMENT FOR LARGE MEMORY SUBSYSTEMS - A power management system is provided. The system includes a permanent storage medium that has a plurality of storage segments that are individually controllable. A power manager analyzes requirements of programs that access the permanent storage medium and selectively enables or disables a subset of the storage segments in order to mitigate power consumption of the storage medium.07-22-2010
20120272079POWER SAVING OPERATION OF ALWAYS-CONNECTED WIRELESS ROAMING - Methods and apparatuses enable maintaining wireless connectivity while the wireless client device is in a power save mode. The system includes a host operating system (OS) that handles wireless connections while the device is executing in normal operation, and an embedded agent that handles the wireless connections when the device switches to power saving operation and the host OS switches to a sleep or standby state. The system detects a change in the power save mode and triggers an exchange of session context information between the host OS and the embedded agent (from the host OS to the embedded agent when the system enters the power save mode, and from the embedded agent to the host OS when the system returns to normal operation from the power save mode). The system also triggers the switching of management consistent with the passing of session context information.10-25-2012
20100262850Power Budget Controller and Related Method for Ethernet Device - A power budget controller for an Ethernet device is disclosed. The Ethernet device is connected with another Ethernet device through a cable. The power budget controller includes a length estimation unit, a power selection unit and a link monitoring unit. The length estimation unit is utilized for generating a detection signal to the cable and for estimating length of the cable according to a refection waveform of the detection signal. The power selection unit is coupled to the length estimation unit, and utilized for adjusting a transmission power of the Ethernet device according to an estimation result of the cable length. The link monitoring unit is coupled to the power selection unit, and utilized for monitoring a link status of the Ethernet device to determine whether the transmission power is selected correctly.10-14-2010
20100262848POWER CONSUMPTION MANAGEMENT IN A NETWORK DEVICE - A method includes buffering an initial amount of data of a data set transmitted from a MAC. When an amount of time for data associated with the data set to fill a PHY buffer approaches an amount of time for the far-end PHY to transition from the second far-end PHY power state to the first far-end PHY power state, buffering a remaining amount of data of the data set transmitted from the MAC and transmitting the data to a far-end PHY after the far-end PHY transitions between a second and first far-end PHY power state. When the amount of time for data associated with the data set to fill the buffer exceeds the amount of time for the far-end PHY to transition from the second to the first far-end PHY power state, transmitting a data delay indicator to the MAC to preempt the MAC from transmitting the remaining amount of data.10-14-2010
20120124403POWER CAPPING FEEDBACK NORMALIZATION - A power capping system (05-17-2012
20100191992WIRELESS COMMUNICATION APPARATUS AND POWER MANAGEMENT METHOD FOR THE SAME - A wireless communication apparatus is adapted for communication between a host and a communication device. The wireless communication apparatus includes a host transmission interface adapted to be coupled to the host, a host transmission interface controller coupled to the host transmission interface, a wireless transmission interface adapted for communicating with the communication device so as to receive packet data therefrom, a wireless transmission interface controller coupled to the wireless transmission interface, and a processor coupled between the host transmission interface controller and the wireless transmission interface controller. The processor is operable to control a power state of the host transmission interface controller to enter a power consuming mode selected in accordance with a traffic volume.07-29-2010
20100191991System and Method for Using an On-DIMM Remote Sense for Performance and Power Optimization - A system includes a dual in-line memory module and a system board. The dual in-line memory module includes a plurality of dynamic random access memory devices, and a system management interface. The system management interface is configured to measure a first voltage provided to the dynamic random access memory devices, and configured to digitize the first voltage. The system board includes a test module and a voltage regulator. The test module is configured to receive the digitized first voltage via a connector pin between the dual in-line memory module and the system board, and configured to compare the first voltage to a first threshold voltage. The voltage regulator is configured to adjust a remote sense target voltage for the system management interface when the first voltage is less than the first threshold voltage.07-29-2010
20100191990VOLTAGE-BASED MEMORY SIZE SCALING IN A DATA PROCESSING SYSTEM - A memory has bits that fail as power supply voltage is reduced to reduce power and/or increase endurance. The bits become properly functional when the power supply voltage is increased back to its original value. With the reduced voltage, portions of the memory that include non-functional bits are not used. Much of the memory may remain functional and use is retained. When the voltage is increased, the portions of the memory that were not used because of being non-functional due to the reduced power supply voltage may then be used again. This is particularly useful in a cache where the decrease in available memory due to power supply voltage reduction can be implemented as a reduction in the number of ways. Thus, for example an eight way cache can simply be reduced to a four way cache when the power is being reduced or endurance increased.07-29-2010
20090199026Saving energy based on storage classes with corresponding power saving policies - An example of the invention classifies disks drives based on their purpose and associating power-saving policies in multiple classes. The system implements Power On Demand, where a reduced power mode is enabled for every individual component of a storage subsystem. In addition, an embodiment of this invention extends a few power modes used in the prior art and allows almost infinite number of power modes when instructing a disk drive (via its I/O interface such as a SCSI or fibre channel interface) to enter a certain power saving mode. Furthermore, an embodiment of invention teaches a system and methods to save power in a disk system comprising a plurality of disk controllers and a plurality of disk drives, arranged in a plurality of arrays, where each array includes several (e.g., 4-16) disk drives.08-06-2009
20100218013TIME-BASED STORAGE ACCESS AND METHOD OF POWER SAVINGS AND IMPROVED UTILIZATION THEREOF - The invention provides a method and system for time-based storage access, the method includes associating a plurality of storage volumes with specific periods of time during which they can be accessed, adjusting user fees based on access time periods of storage volumes, packing the plurality of storage volumes in available storage bins in the system based on periods of access for the plurality of storage volumes, wherein volumes with overlapping or similar periods of access are packed into a same storage bin if possible, and switching a storage bin to off or a reduced power state during periods when the storage volumes placed in the storage bin are not required, to reduce power consumption.08-26-2010
20100185882Computer System Power Management Based on Task Criticality - A method, apparatus, and program product are provided for managing power consumption in a computer system based on the degree with which performance of tasks can be degraded in order to save power. A criticality value controls the degree with which performance of a task may be degraded is associated with tasks within a computer system. Power consumption of the computer system is then managed based on the criticality values associated with tasks executing within the computer system. A reduction in computer system power consumption can be realized by degrading the performance of non-critical tasks, which is accomplished by reducing the power consumed by at least a portion of the computer system. Power can also be reduced by scheduling non-critical tasks to portions of the computer system and reducing power consumption of other portions of the computer system.07-22-2010
20090077402Voltage-controlled device, method and computer device capable of dynamically regulating voltage and effectively saving energy - The invention provides a voltage-controlled device, method and computer device capable of dynamically regulating voltage and effectively saving energy. The voltage-controlled device receives a VID from a CPU, determines a core voltage according to a load line defined therein, and supplies the core voltage to the CPU. The voltage-controlled device has a load line register set and a write logic. The load line register set has a plurality of registers, and the values of which represent the defined load line. The write logic changes the values of the registers in the load line register set according to a write signal.03-19-2009
20090077403Integrated device, layout method thereof, and program - An integrated device includes at least one data processing device and at least one memory macro accessible by the data processing device. The data processing device and the memory macro are laid out so that a memory address and a power consumption have a correlation.03-19-2009
20090077401BUFFERING TECHNIQUES FOR POWER MANAGEMENT - Buffering techniques for power management are described. A method may comprise modifying a power state for a communications sub-system and a computing sub-system from a higher power state to a lower power state, storing packets of information in a buffer for the communications sub-system during a communications idle duration period, generating a variable receive threshold value for the buffer, and transferring the stored packets of information from the buffer to the computing sub-system based on a variable receive threshold value. Other embodiments are described and claimed.03-19-2009
20090077398Workload Apportionment According to Mean and Variance - An improved method is provided for managing workload on a multi-server computer system. In one embodiment, a subset of servers is selected according to an anticipated net workload. The remaining servers in the system may be powered off to conserve energy and prolong equipment life. Workload is dynamically apportioned among the subset of servers at selected intervals to more uniformly distribute the mean and variance of the workload among the subset of servers. More particularly, the mean and the variance for each of a plurality of workload units are equally weighed in determining a ranking of the workload units. The workload units may be ordered according to a mathematical combination of the mean and variance, such as the sum or product of mean and variance for each workload unit. The workload units are allocated among the subset of servers in according to rank, such as by assigning the workload units to the servers in a reverse round-robin fashion according to rank. Predictive power management schemes such as DVS and DVFS may then be used to control power to the servers.03-19-2009
20090077400POWER CONTROL SYSTEM - A power mode designating unit of a main system outputs an operation mode designating signal to a sub system. Upon shifting from the normal operation mode to the power-saving mode, a control unit of the sub system outputs a power-saving mode shift enable signal indicating that shifting to the power-saving mode is possible to a power control unit of the sub system. When the operation mode designating signal designates the power-saving mode and the power-saving mode shift enable signal indicates that shifting to the power-saving mode is possible, the power control unit supplies a power-saving mode voltage to the control unit.03-19-2009
20090077399CONTROLLING APPARATUS, CONTROLLING METHOD, COMPUTER READABLE MEDIUM, IMAGE FORMING APPARATUS AND INFORMATION PROCESSING APPARATUS - The controlling apparatus is provided with: a memory that stores application software; a setting part that sets an operational manner related to power consumption of an apparatus running the application software, corresponding to the application software stored in the memory; and a controller that controls the power consumption of the apparatus according to the operational manner set by the setting part.03-19-2009
20100162014Low power polling techniques - Techniques are described to provide the capability to halt execution of a thread by a processor and potentially lower power consumption of the processor while responding to events in a timely manner. An operating system provided system call allows for identification of events that cause the execution of the thread to resume. A processor core uses a signal mask and translation unit that monitors for the identified events. In the event an event is detected, the thread unhalts and determines a manner to process the event.06-24-2010
20100229009Applying power to a network interface - A host device capable of communicating with an external network. The host device may comprise a power-application unit and a network interface. The power-application unit may receive from a power-supply unit a first power-supply output having a first voltage level and a second power-supply output having a second voltage level. The power-application unit may be controllable for producing selectively a first power-application output having a third voltage level from the first power-supply output and a second power-application output having a fourth voltage level from the second power-supply output. The network interface may transmit data to and receive data from an external network, and may be powered at least in part by the first and second power-application outputs.09-09-2010
20100241882System and Method for Tunneling Control over a MAC/PHY Interface for Legacy ASIC Support - A system and method for tunneling control over a MAC/PHY interface for legacy ASIC support. Energy efficient Ethernet control or status information can be communicated over a MAC/PHY interface using control codes that are embedded in sequence ordered sets. These sequence ordered sets would not affect the data flow and can be tunneled within an existing interface (e.g., XAUI, XFI, xxMII or derivative interfaces) without generating errors.09-23-2010
20100241881Environment Based Node Selection for Work Scheduling in a Parallel Computing System - A method, apparatus, and program product manage scheduling of a plurality of jobs in a parallel computing system of the type that includes a plurality of computing nodes and is disposed in a data center. The plurality of jobs are scheduled for execution on a group of computing nodes from the plurality of computing nodes based on the physical locations of the plurality of computing nodes in the data center. The group of computing nodes is further selected so as to distribute at least one of a heat load and an energy load within the data center. The plurality of jobs may be additionally scheduled based upon an estimated processing requirement for each job of the plurality of jobs.09-23-2010
20100218015POWER MANAGEMENT INDEPENDENT OF CPU HARDWARE SUPPORT - A system including power savings modes, the system including a processor that supports bus semantics in its hardware for a power state of a first level, wherein the first level is lowest power level the processor is able to enter, a system core logic module coupled to the processor, and a memory, coupled to the system core logic module, storing instructions, which when executed by the system, causes the system core logic to be notified of an impending processor idle state that is compatible with the latency required for system core logic power savings modes and wherein, in response to being notified of an impending processor idle state, the system core logic implements thread, core, or package level power saving idle modes lower than supported by the first level based on a latency hierarchy and independent of normal power saving bus semantics.08-26-2010
20100218017NETWORK APPARATUS AND METHOD FOR CONTROLLING NETWORK APPARATUS - A CPU of a network apparatus (MFP) counts, based on packets received in a certain period of time, the number of terminal apparatuses from among a plurality of terminal apparatuses that can communicate with the network apparatus. When the counted number of terminal apparatuses is less than the threshold value of the number of available hosts (Th), the network apparatus is controlled to shift into a power-saving state.08-26-2010
20100218014Power Management To Maximize Reduced Power State For Virtual Machine Platforms - Power management in a virtual machine environment that includes at least one virtual machine platform providing a plurality of virtual machines, and a plurality of separate (user) computers, each connected to a respective one of the virtual machines in a typical virtual machine distribution environment. There is also provided a function, independent of the connections of the user computers to the virtual machines, for determining if each of said computers connected to the virtual machines is in an active state together with a function for switching the virtual machine platform into a reduced power consumption state in the platform when all of the computers connected to virtual machines are in a non-active state.08-26-2010
20100235659SYSTEM AND METHOD FOR CONTROLLING USE OF POWER IN A COMPUTER SYSTEM - In one embodiment, a power adapter comprises a power supply to output power for powering a powered device. The power adapter outputs information indicative of an amount of power output by the power supply for use by the powered device to control the amount of power used by the powered device.09-16-2010
20100235660LOW POWER COMPUTER WITH MAIN AND AUXILIARY PROCESSORS - An architecture for a computer includes a primary processor that consumes power at a first rate, that is operated when the computer is in an high power mode and that is not powered when the computer is in a low power mode. A primary graphics processor communicates with the primary processor, is operated when the computer is in the high power mode and is not powered when the computer is in the low power mode. A secondary graphics processor communicates with a secondary processor. The secondary processor consumes power at a second rate that is less than the first rate. The secondary processor and the secondary graphics processor are operated when the computer is in the low power mode.09-16-2010
20120144215MAXIMUM CURRENT LIMITING METHOD AND APPARATUS - The maximum current is limited in a multi-processor core system by monitoring the latest power consumption in the processor cores, in order to prevent a system shutdown as a result of an over-current event. If the sum of the latest power of the processor cores exceeds a threshold limit, a performance state (P-state) limit is enforced in the processor cores. The P-state limit causes a P-state change to a lower frequency, voltage and thus a lower current.06-07-2012
20100250984ELECTRONIC DEVICE AND POWER SAVING METHOD THEREOF - The present invention discloses an electronic device and power saving method thereof. In an embodiment, when the electronic device operates in a power-saving mode, which means an area on a screen of the electronic device is not a currently in-focus window-based interface, the area is adjusted to have reduced backlight brightness. Thus, not only the power consumed by the screen is reduced but also user experience can be maintained. In another embodiment, when the electronic device operates in a power-saving mode, display parameters for an image shown in the currently in-focus window-based interface are changed without adversely affecting the power-saving effect, so that the currently in-focus window-based interface has higher display definition than other areas do.09-30-2010
20100250983POWER SAVING CONTROL SYSTEM - A power saving control system includes a power supply, a voltage conversion unit, an electrical switch, a control chip having a general programmable input output (GPIO) pin and a basic input system (BIOS) chip. The power supply is configured for supplying a voltage. The voltage conversion unit is connected to the power supply to receive the voltage and configured for converting the voltage into a working voltage of an electronic element, and outputting the working voltage. The electrical switch is connected between the voltage conversion unit and an input terminal of the electronic element. The control chip is connected to the electrical switch. The BIOS chip is connected to the control chip to control the electrical switch to be turned on or off via controlling an output value of the GPIO pin of the control chip to control the electrical element to work.09-30-2010
20100250982CONSERVING POWER IN A PLATFORM SUPPORTING NETWORK INTERFACES - A computer system may comprise a platform in which a processing block may be provisioned. The processing block may determine an optimal compression ratio such that the optimal compression ratio may cause a minimum of a total power to be consumed by the computer platform. The total power may comprise total compression power consumption and total transmission power consumption. The processing block may generate compressed frames from a plurality of frames generated by an application. The compressed frames may be generated by encoding the plurality of frames using the optimal compression ratio. The processing block may select a network interface from multiple network interfaces supported by the computer system to transmit the compressed frames.09-30-2010
20100250981DYNAMIC MEMORY VOLTAGE SCALING FOR POWER MANAGEMENT - In the context of computer systems, the present invention broadly contemplates the ability to dynamically adjust the voltage and frequency of DRAM memory modules that are dual-voltage tolerant based on system performance. The invention allows a computer system to dynamically scale the memory voltage between a lower and a higher voltage, thereby allowing the system to save power when the system is idle or in low usage, but also allowing the system to realize the full memory performance when running more intensive applications.09-30-2010
20100250980METHODS FOR REDUCING POWER CONSUMPTION AND DEVICES USING THE SAME - A method for reducing power consumption of a device with an embedded memory module is provided. The device includes comprises a processor, an embedded memory module, a software module, a power supplying unit, and an auxiliary logic. The embedded memory module is accessed by the processor and partitioned into a plurality of memory blocks in accordance with a first predetermined rule. The software module comprises an instruction set and a data set. The software module is segmented into a plurality of segments in accordance with a second predetermined rule. The power supplying unit provides power to the plurality of memory blocks. The auxiliary logic controls the power supplying unit. The power supplied to a memory block is switched on or off in accordance with a condition.09-30-2010
20120036378COMPUTER AND CONTROL METHOD THEREOF - A mobile computer as an electronic apparatus and a control method thereof. The control method of the mobile computer which receives power from an adaptor or a battery includes receiving power from one of the adaptor and the battery and operating in an adaptor mode or a battery mode, performing a predetermined power saving operation, which is disabled in the adapter mode, while operating in the battery mode, and performing the power saving operation in a battery emulation mode by maintaining power supply from the adaptor upon an occurrence of a predetermined mode changing event in the adaptor mode.02-09-2012
20090063882Power Saving Apparatus and Method for a Portable Appliance - A power saving apparatus and method for a portable appliance to automatically enter into power saving mode when the portable appliance is turned off. The invention provides a power saving apparatus and method for a portable appliance to prevent the dam age of electronic elements and damage to saved data caused by the vibration from moving the portable appliance.03-05-2009
20080307242COMPUTER SYSTEM POWER SOURCE WITH IMPROVED LIGHT-LOAD EFFICIENCY - Embodiments of the present invention provide a system that supplies power in a computer system. The system includes a power adapter coupled to a source of electrical power and a set of a set of power consumers coupled to a power bus in the computer system. A full-power mechanism coupled between the power adapter and the power bus supplies power for the power consumers while the computer system is operating in a full-power mode. A low-power mechanism coupled between the power adapter and the power bus in parallel with the power mechanism supplies power for the power consumers while the computer system is in operating in a low-power mode.12-11-2008
20100083019MULTIPROCESSOR SYSTEM AND CONTROL METHOD THEREOF, AND COMPUTER-READABLE MEDIUM - A multiprocessor system configured to share processes by a main system having a first processor and a subsystem having a second processor, comprises a first shared memory configured to receive accesses from the main system and the subsystem, a second memory configured to receive access from the subsystem at a power saving mode, a stop unit configured to stop accesses from the main system and the subsystem to the first shared memory when the subsystem enters the power saving mode, and a switching unit configured to switch an access destination of the subsystem from the first shared memory to the second memory when the subsystem enters the power saving mode.04-01-2010
20100058083Systems and Methods for Controlling Power Consumption of Power Supply of Electronic Devices - A method of controlling power consumption of a power supply of a device may include receiving a control signal that switches the device between first and second modes of operation; and switching the supply between corresponding first and second modes based on the received signal, the supply being configured to draw different amounts of power in the first and second modes. A power supply for supplying electrical power to a device may include power supply mode circuitry configured to place the supply into one of at least two power modes: a first mode in which the supply draws a first amount of power and a second mode in which the supply draws less power. An electronic device may include circuitry that generates a control signal, based on which the power supply mode circuitry selectively places the electrical power supply into one of a plurality of power modes.03-04-2010
20100042856Power saving method of portable internet device and portable internet device thereof, and instant messaging system using the same - The present invention discloses a power saving method of a portable Internet device, the portable Internet device and its instant messaging system. If a screen of the portable Internet device is in non-view state, for example, both backlight module and LCD panel are turned off, it means that a user is not viewing the screen, and thus the message update frequency of the instant messaging program is lowered to prevent unnecessary transmission and receiving of wireless signals, so as to reduce power comsumption of the portable Internet device.02-18-2010
20100058085Power-Saving Device and Method - A power-saving device and method are applicable to a first electronic device having at least one connection interface, and the first electronic device is coupled to a second electronic device via a bus. The power-saving device includes a detection circuit, a power control circuit, and a connection control circuit. The detection circuit is coupled to the connection interface, to detect a load state of the connection interface and generate a detection signal. The power control circuit controls power supplied to the first electronic device via the bus in response to a state of the detection signal. The connection control circuit controls a connection state of the bus according to the detection signal.03-04-2010
20090327773SERIAL ATA (SATA) POWER OPTIMIZATION THROUGH AUTOMATIC DEEPER POWER STATE TRANSITION - A host device and a storage device with a Serial ATA (SATA) architecture to independently transition to a deeper low power state after first entering an initial low power state without first transitioning to the Active state. The transition from the Partial state to the Slumber state is direct and the transition may be enabled, but not negotiated through a handshaking process.12-31-2009
20090327777POWER EFFICIENT HIGH FREQUENCY DISPLAY WITH MOTION BLUR MITIGATION - Some embodiments describe techniques that relate to power efficient, high frequency displays with motion blur mitigation. In one embodiment, the refresh rate of a display device may be dynamically modified, e.g., to reduce power consumption and/or reduce motion blur. Other embodiments are also described.12-31-2009
20090327776MULTIPLE LOAD LINE VOLTAGE REGULATORS - Methods and apparatus relating to a multiple load line voltage regulators are described. In one embodiment, a voltage regulator may adjust an input voltage level based on information received from a load and current supplied to the load. Other embodiments are also disclosed and claimed.12-31-2009
20090327775USER IMPOSED POWER CONSTRAINTS ON WEB SERVER BASED ON USER PREFERENCES - Web application users are able to specify power constraints for remote web servers. These may be based on individual performance needs and energy-conservation desires. They enable the user to exercise control over the amount of energy that the web server expends in serving the needs of the user. The invention may employ such features as vertical scaling using power capacity on demand (CUoD) type functionality. The method includes providing a user-interactive interface to enable the user to indicate a preference for power restrictions with respect to its web requests. The user then instructs the web site provider to reduce power consumption in response to the user's request. The user specifies a reduction in overall power consumption for the user's needs, such as instructing the web service provider to use an energy-conserving server to handle the user's web requests, or specifying a acceptable delay or fulfilling the user's web requests.12-31-2009
20090319811STORAGE APPARATUS AND DISK DEVICE CONTROL METHOD - In a storage apparatus, an MPU acquires a value of power capable of being used to transition a HDD from a power-saving state to an access-enabled state, receives an access command via a host I/F, determines whether or not it is possible to respond to the access command using one or more HDD in the access-enabled state from among the HDD configuring a LU, and when it is determined that it is possible to respond, selects, from HDD in the power-saving state in the access command-targeted LU, one or more HDD, which are capable of transitioning to the access-enabled state using power in a range of usable power values, and which can make a response possible, as a target to be preferentially transitioned to the access-enabled state.12-24-2009
20100299544Enabling/Disabling Power-Over-Ethernet Software Subsystem In Response To Power Supply Status - An Ethernet switch includes 12-Volt and 48-Volt power sourcing modules, system software, Ethernet interface modules and optional power over Ethernet (PoE) modules. The Ethernet interface modules are motherboards that include the circuitry required to implement a non-PoE system. The PoE modules are daughter boards that include the circuitry required to supply powered devices in a PoE subsystem. A PoE module may be connected to a corresponding Ethernet interface module. During start up, all of the Ethernet interface modules are first powered up in response to the 12-Volt power sourcing module. If the system software subsequently determines that the 48-Volt power sourcing module is operational, then (and only then) the system software attempts to detect the presence of any PoE modules. Upon detecting one or more PoE modules, the PoE modules are initialized and configured, thereby enabling PoE operation.11-25-2010
20100306560Power Management in a Virtual Machine Farm at the Local Virtual Machine Platform Level by a Platform Hypervisor Extended with Farm Management Server Functions - Power management for a virtual machine farm in which each hypervisor respectively serving each virtual machine platform in the farm is provided with an extended hypervisor function coacts with functions provided by the connection broker and the manual configuration interface of the virtual machine farm management server for managing each respective virtual machine platform to maximize the time that each platform is in the reduced power state.12-02-2010
20090070608ELECTRONIC CONTROL UNIT AND SIGNAL MONITORING CIRCUIT - An electronic control unit has a microcomputer and a signal monitoring circuit. When a brake pedal is pressed down and an analog signal from a brake pedal sensor is changed in a low power consumption operation mode of the microcomputer, the signal monitoring circuit operates cyclically, When the signal monitoring circuit starts the operation, a capacitor is charged with a constant current for only a charging time stored in a memory. When a comparator detects that the analog signal is lower than the charge voltage of the capacitor, a wakeup signal is output from the comparator to the microcomputer to cause the microcomputer to operate in the normal operation mode. The charging time is pre-stored in a memory of the microcomputer.03-12-2009
20090070609POWER THROTTLING APPARATUS - Disclosed is an apparatus which deactivates both the AC as well as the DC component of power for various functions in a CPU. The CPU partitions dataflow registers and arithmetic units such that voltage can be removed from the upper portion of dataflow registers when the software is not utilizing same. Clock signals are also prevented from being applied to these non-utilized components. As an example, if a 64 bit CPU (processor unit) is to be used with both 32 and 64 bit software, the mentioned components may be partitioned in equal sized upper and lower portions. The logic signal for activating the removal of voltage may be obtained from a software-accessible architected control register designated as a machine state register in some CPUs. The same logic may be used in connection with removing voltage and clocks from other specialized functional components such as the floating point unit when software instructions do not presently require same.03-12-2009
20090070607Methods and apparatuses for reducing step loads of processors - Methods and apparatuses for reducing step loads of processors are disclosed. Method embodiments comprise examining a number of instructions to be processed by a processor to determine the types of instructions that it has, calculating power consumption by in an execution period based on the types of instructions, and limiting the execution to a subset of instructions of the number to control the quantity of power for the execution period. Some embodiments may also create artificial activity to provide a minimum power floor for the processor. Apparatus embodiments comprise instruction type determination logic to determine types of instructions in an incoming instruction stream, a power calculator to calculate power consumption associated with processing a number of instructions in an execution period, and instruction throttling logic to control the power consumption by limiting the number of instructions to be processed in the execution period.03-12-2009
20130132747INFORMATION PROCESSING APPARATUS WITH POWER CONTROL UNIT, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM STORING CONTROL PROGRAM THEREFOR - An information processing apparatus that is capable of reducing power consumption. A power supply unit supplies electric power to devices including first and second devices of the apparatus. A power-state-switching unit switches a power state of the apparatus among a first power state in which the power supply unit supplies power to the devices, a second power state in which the power supply unit does not supply power to the first device without supplying power from a secondary battery to the devices, and a third power state in which the secondary battery supplies power to the second device. A control unit controls so that the secondary battery is charged by the power supplied from the power supply unit in the first power state, and to control so that the secondary battery is not charged by the power supplied from the power supply unit in the second and third power states.05-23-2013
20130132748Control Method for Shared Devices and Electronic Device - The present invention discloses a control method for shared devices and an electronic device. The control method of shared devices is used in an electronic device comprising a first subsystem and a second subsystem, the electronic device having a first state and a second state, the first state being a state wherein both the first subsystem and the second subsystem are in the working state, the second state being a state wherein the first subsystem is in the non-working state and the second subsystem is in the working state, the electronic device further comprising shared devices used by the first subsystem and the second subsystem, the method comprising: acquiring a first instruction, the first instruction, which is generated by the first subsystem and is transmitted to the shared devices during the switching process between the first state and the second state of the electronic device, being used to adjust a current working state of the shared devices; acquiring a second instruction, the second instruction being a control instruction, which is generated when the electronic device is switching between the first state and the second state; controlling the state of the shared devices to be the current working state based on the first instruction and the second instruction.05-23-2013
20100306561INFORMATION PROCESSING APPARATUS AND POWER CONTROL METHOD - According to one embodiment, an information processing apparatus includes a wireless communication device and a power management module. The power management module is configured to transmit, in response to disconnection of an external power supply device from a power connector of the information processing apparatus, a command instructing turn-off of a power supply circuit within the external power supply device to a wireless communication circuit within the external power supply device via the wireless communication device.12-02-2010
20100313046DATA PROCESSING SYSTEM, METHOD FOR PROCESSING DATA AND COMPUTER PROGRAM PRODUCT - A data processing system includes one or more processing unit arranged to execute sets of instructions stored in the data processing system. The sets may include two or more application sets, each forming an application sets and including instructions for scheduling for the application an event at a future point in time. The event may require the processing unit to be in an active mode. The sets may further include rescheduling instructions for receiving from the applications information about the scheduled events and determining whether or not one or more of the events can be rescheduled and rescheduling a reschedulable event to a new point in time. The sets may further include mode control instructions for controlling the processing unit to be in the active mode during a time interval which includes the new point in time and to be in a low power mode in which the processing unit consumes less energy than in the active mode during a period of time adjacent to the time interval.12-09-2010
20100313043Storage Apparatus and Its Power Saving Control Method - Provided are a storage apparatus and its power saving control method capable of performing sufficient power saving to multiple memory devices without deteriorating the response performance to a host system. If multiple logical volumes formed in disk drives configuring a parity group are in an offline status where a path group from the host computer is not set, a control processor sets the multiple disk drives of the parity group to a power saving status.12-09-2010
20110145613CONNECTION UNIT FOR PATCH CABLES OF POWER-OVER-ETHERNET NETWORKS - The connection unit is intended for connecting terminals (T) to networks (LAN) that provide electric energy (E) to the terminals (T) connected thereto. The connection unit (AE) is configured for generating electric energy for the connection unit (AE) from the energy (E) provided, and has a switching element (SE) for separating the supply of energy for the terminals (T), wherein the switching element (SE) is controlled via the network (LAN). It is advantageous that the energy supply of the terminals (T) can be separated or switched on via the network (LAN) by means of the switching elements (SE), for example as a function of the presence or the location of users of terminals (T). Since the separations of the energy supply to the terminals may be carried out over longer periods of time, such as during the night, the energy consumption of the terminals (T) or of the networks (LAN) providing the electric energy to the terminals (T) can be reduced significantly.06-16-2011
20110145612Method and System to Determine and Optimize Energy Consumption of Computer Systems - A method, system and computer program product to manage energy consumption within a computing environment. Energy consumption of different hardware components are measured in the computing environment. Measurement includes voltage and current versus time used by the hardware components. The different measured values of energy consumption are collected, followed by tracking the hardware component used in time during an execution of an individual execution context within the computing environment. The energy consumption of the individual execution context is calculated by associating the corresponding collected measured energy consumption to the hardware component used.06-16-2011
20110145610POWER SAVING DEVICE AND ALL-IN-ONE PC HAVING THE SAME - A power saving device is configured in an all-in-one PC and has a power module expandably composed of a plurality of Ni-MH cells linked up either in series connection or in parallel connection. When an external alternating power provides power supply for the PC, a charging circuit of the power saving device charges the power module. When the alternating power is out or the PC is operated to enter a power saving mode, a controller of the power saving device notifies the PC to enter the power saving mode, while the power module provides power for the memory and memory controller of the PC with low power consumption. The all-in-one PC consumes little power while in power saving mode and is capable of restoring to its normal mode in short time. The power saving device enhances the all-in-one PC with features of instant-on, long-time standby, and backup power provision.06-16-2011
20110145611METHOD OF MEASURING POWER CONSUMPTION OF ELECTRIC APPLIANCE - A method of measuring power consumption of an electric appliance is provided. The method may include determining an operation mode of the electric appliance, extracting power consumption data corresponding to the determined operation mode of the electric appliance, and calculating an integrated power consumption based on the extracted power consumption data and the operation time of the electric appliance.06-16-2011
20130138984Extending RunTime with Battery Ripple Cancellation Using CPU Throttling - Methods of extending runtime with battery ripple cancellation in a CPU based system by providing a CPU that includes an input pin capable of throttling the power consumed by the CPU responsive to the input of a throttling signal, sensing a ripple in the form of a decrease in voltage or an increase in current responsive to a load on a CPU power supply, and when the ripple exceeds a predetermined limit, providing a throttling signal to the input pin to throttle the CPU to reduce the ripple.05-30-2013
20130138986IMAGE FORMING APPARATUS AND POWER CONTROL METHOD THEREOF - An image forming apparatus includes a volatile memory and System-on-Chip (SoC) part. The SoC part includes an internal memory, a CPU for accessing the volatile memory in the normal mode; an interface part for receiving a external signal, and a control part for, when the interface part has no input during a first preset time, copying information stored to the volatile memory to the internal memory and converting to a first power saving mode to lower an operating frequency of the volatile memory and an operating frequency of the CPU, and when a normal mode switch signal is not input during a second preset time in the first power saving mode, controlling the CPU to access the information copied to the internal memory and converting to a second power saving mode to change the volatile memory to a self-refresh mode.05-30-2013
20100325456CONTROLLING THE POWER CONSUMPTION OF A RECEIVING UNIT - An average power consumption of receiving units (12-23-2010
20100325453PRIORITIZED WORKLOAD ROUTING IN A DATA CENTER - An approach that manages energy in a data center is provided. In one embodiment, there is an energy management tool, including an analysis component configured to determine an energy profile of each of a plurality of systems within the data center. The energy management tool further comprises a priority component configured to prioritize a routing of a workload to a set of systems from the plurality of systems within the data center having the least amount of energy present based on the energy profile of each of the plurality of systems within the data center.12-23-2010
20100325452AUTOMATIC CLOCK-GATING INSERTION AND PROPAGATION TECHNIQUE - Embodiments of the present invention provide a method and system for clock-gating a circuit. During operation, the system receives a circuit which includes a plurality of clocked memory elements. Next, the system identifies a feedback path from an output of a clocked memory element to an input of the clocked memory element, wherein the feedback path passes through intervening combinational logic, but does not pass through other clocked memory elements in the circuit. Then, the system gates a clock signal to the clocked memory element so that the clock signal is disabled when the feedback path causes a value which appears at the output of the clocked memory element to be appear at the input of the clocked memory element.12-23-2010
20100332869Method and apparatus for performing energy-efficient network packet processing in a multi processor core system - A method and apparatus for managing core affinity for network packet processing is provided. Low-power idle state of a plurality of processing units in a system including the plurality of processing units is monitored. Network packet processing is dynamically reassigned to processing units that are in a non-low power idle state to increase the low-power idle state residency for processing units that are in a low-power idle state resulting in reduced energy consumption.12-30-2010
20100332871CAPPING POWER CONSUMPTION IN A DATA STORAGE SYSTEM - A method for capping power consumption in a data storage system is provided. The method comprises associating a power quota with a first storage medium, wherein the power quota limits amount of power consumed by the first storage medium within a given time interval; receiving a request to perform an input/output (I/O) operation on the first storage medium; and servicing the request within power limits defined by the power quota.12-30-2010
20110016336STORAGE SYSTEM, CONTROL METHOD OF STORAGE DEVICE - The present invention provides a technique that enables, in an environment in which an upper limit of electric energy consumption is prescribed for a specific period, operations of a storage device while keeping the electric energy consumption within the prescribed upper limit and, at the same time, maintaining operations of a disk device of a storage device necessary for providing services to a user. A storage system according to the present invention includes a storage device having one or more energized parts and a management device that manages operations of the storage device. The management device acquires electric energy consumption of the energized part and controls the operational state of the energized part so that the electric energy consumption of the storage device over a predetermined period does not exceed a prescribed upper limit.01-20-2011
20110010570INFORMATION PROCESSING APPARATUS HAVING POWER SAVING MODE, AND CONTROL METHOD AND STORAGE MEDIUM THEREFOR - An information processing apparatus in which a first waiting time is set, if a job interval is longer than a reference time and a predetermined condition is not satisfied, and a second waiting time longer than the first waiting time is set, if a job interval is longer than the reference time and the predetermined condition is satisfied. In a case that the job interval is longer than the first reference time, a control unit causes a multi-function peripheral to shift from a normal mode to a power saving mode when the first waiting time has elapsed after a job having been processed, if the predetermined condition is not satisfied, and causes the multi-function peripheral to shift to the power saving mode when the second waiting time has elapsed after the job having been processed, if the predetermined condition is satisfied.01-13-2011
20110010569Adaptive Flushing of Storage Data - Methods and a processing device are provided for monitoring a level of power in a power supply of a processing device and changing a data flushing policy, with respect to data to be written to a non-volatile storage device, based on a predicted amount of time until power loss. When the predicted amount of time until power loss is higher than a threshold, as defined by a flushing policy, requests from applications for data flushes of data to a non-volatile storage device may be discarded. When the predicted amount of time remaining until power loss drops below the threshold, the requests from the applications for data flushes of the data to the non-volatile storage device may be honored and the data may be flushed to the non-volatile storage device. In some embodiments, the flushing policy may define additional thresholds.01-13-2011
20110029794POWER SUPPLY CIRCUIT FOR AUDIO CODEC CHIP AND METHOD FOR PROVIDING POWER SUPPLY TO AUDIO CODEC CHIP - A power supply circuit is provided. The power supply circuit includes an audio codec chip and a voltage absorbing circuit. The audio codec chip has a power input terminal. The power input terminal is connected to a power source terminal. The voltage absorbing circuit is connected between the power source terminal and the power input terminal of the audio codec chip so as to decrease a divided voltage accomplished with a voltage from the power source terminal to low level. A method configured for starting up an audio codec chip on a computer motherboard in a normal manner is also provided.02-03-2011
20110035611COORDINATING IN-BAND AND OUT-OF-BAND POWER MANAGEMENT - One embodiment provides a method of managing power in a computer system. A device of the computer system is operated at a selected power-state. The power consumption of the computer system is monitored. If the power consumption of the computer system is approaching or has exceeded a power cap selected for the computer system, then a request to reduce the power-state for the device is generated in response. The operating system is used to service the request to reduce the power-state according to the priority of the request. The reduced power state is forced out-of-band following the request to reduce the power-state if the request is not immediately serviceable by the operating system. Different approaches can be taken to force the reduced power state, using, for example, system management mode or a platform environment control interface.02-10-2011
20110119509STORAGE SYSTEM HAVING POWER SAVING FUNCTION - A controller of a storage system associates a portion of the logical area of logical storage devices with one or more pool area of a pool. The frequency of I/O (Input/Output) of any of the portion of the logical areas is higher than the I/O frequency of the remaining logical areas of the logical storage devices. In the event of I/O, if a first physical storage device group which forms the basis of the physical storage devices is in a power saving state, then the controller performs I/O of a data element to/from the pool area corresponding to the logical area of the I/O destination, without canceling the power saving state of the first physical storage device group.05-19-2011
20110119508Power Efficient Stack of Multicore Microprocessors - A computing system has a stack of microprocessor chips that are designed to work together in a multiprocessor system. The chips are interconnected with 3D through vias, or alternatively by compatible package carriers having the interconnections, while logically the chips in the stack are interconnected via specialized cache coherent interconnections. All of the chips in the stack use the same logical chip design, even though they can be easily personalized by setting specialized latches on the chips. One or more of the individual microprocessor chips utilized in the stack are implemented in a silicon process that is optimized for high performance while others are implemented in a silicon process that is optimized for power consumption i.e. for the best performance per Watt of electrical power consumed. The hypervisor or operating system controls the utilization of individual chips of a stack.05-19-2011
20110040993CONTROL SYSTEM AND CONTROL METHOD FOR SAVING POWER - A control system for saving power in an electronic device obtains information of maximum power that can be supplied to the electronic device by each power supply, detects how much power is demanded by the electronic device, determines minimum number of the plurality of power supplies, based on the detected power demanded by the electronic device, and turns on power supplies, of which the number is equal to the determined minimum number, and turn off the other power supplies.02-17-2011
20110113273OPERATION MANAGEMENT METHOD OF INFORMATION PROCESSING SYSTEM - In a computer room including information processing devices and air conditioners, power saving of the computer room by means of optimization of workload allocation to the information processing devices is achieved in a short time. There, a coefficient of air conditioner performance with respect to the information processing device (device-specific COP) is calculated for each air conditioner. Further, a device-associated power consumption expression representing a total of device power and air conditioner power is created for each information processing device. Also, power consumption of the entire computer room is calculated from the device-associated power consumption expression of the information processing devices. Also, workload allocation is determined by using power saving performance evaluation indexes based on the device-associated power consumption expression of the information processing devices. Further, output of the air conditioner is controlled based on a result of the air conditioner power calculation.05-12-2011
20110113272PROJECTOR AND POWER CONTROL METHOD THEREOF - A projector and a power control method thereof are provided. The projector includes a battery supplying a battery power; an interface receiving and transmitting an external power; a selection unit receiving the battery power and the external power, and selecting and outputting one of the battery power and the external power to be served as the operation voltage of the projector; a lighting element; a driver receiving a driving signal and driving the lighting element accordingly; and a central processing unit (CPU) outputting a control signal with a first state to control the selection unit to select and output the external power when the capacity of the battery is not sufficient and the interface receives the external power, and regulating the intensity of the driving signal outputted from the CPU according to the capacity of the external power so as to make the projector continuously maintain in operation.05-12-2011
20110113271METHOD AND DEVICE FOR THE DYNAMIC MANAGEMENT OF CONSUMPTION IN A PROCESSOR - A method for managing the power consumed in a processor executing an application, the application including several processing phases, each of which is associated with a computational load. The method includes defining a first nominal mode of consumption, defining at least one second mode of low consumption, and formulating a decision function making it possible optionally to switch from the nominal mode of consumption to the mode of low consumption during the transition from one processing phase to another processing phase of the application.05-12-2011
20110113270Dynamic Voltage and Frequency Scaling (DVFS) Control for Simultaneous Multi-Threading (SMT) Processors - A mechanism is provided for controlling operational parameters associated with a plurality of processors. A control system in the data processing system determines a utilization slack value of the data processing system. The utilization slack value is determined using one or more active core count values and one or more slack core count values. The control system computes a new utilization metric to be a difference between a full utilization value and the utilization slack value. The control system determines whether the new utilization metric is below a predetermined utilization threshold. Responsive to the new utilization metric being below the predetermined utilization threshold, the control system decreases a frequency of the plurality of processors.05-12-2011
20090083558Storage apparatus and power saving method thereof - This storage apparatus includes an access history storage unit for storing, when there is a write request for writing data into the data storage unit or a read request for reading data stored in the data storage unit, history of the write request or read request as access history, an operational information storage unit for storing operational information showing whether the data storage unit is operating, an access prediction unit for predicting whether the data storage unit will be accessed based on the access history, and an operational control unit for performing operational control of pre-starting the data storage unit when the data storage unit is shut off and the access prediction unit predicts that the data storage unit will be accessed, or stopping the data storage unit when the data storage unit is operating and the access prediction unit predicts that the data storage unit will not be accessed.03-26-2009
20120173905PROVIDING POWER OVER ETHERNET WITHIN A VEHICULAR COMMUNICATION NETWORK - A power distribution and management system within a vehicle operates to provide power over Ethernet to a plurality of powered devices coupled to a vehicular communication network of the vehicle.07-05-2012
20090249093Design Structure for Selecting Processors for Job Scheduling Using Measured Power Consumption - In a design structure for allocating a plurality of parts of a computational system to a computational job, a set of requirements necessary to execute the job is determined. A set of parts of the plurality of parts is assembled so that the set of parts is capable of meeting the set of requirements and so that a part is added to the set of parts based on a determination that the addition of the part will minimize power consumption by the set of parts. The set of parts are caused to execute the job.10-01-2009
20100138678POWER-SAVING DEVICE FOR POWER OVER ETHERNET AND CONTROL METHOD THEREFOR - A power-saving device for use with a Power-over-Ethernet technology includes a plurality of connecting ports, a time generator, a storage medium, a power control unit, and a micro controller. The connecting ports are electrically connected with respective powered devices for transmitting electrical power and data to respective powered devices. The time generator is used for generating time information. The storage medium is used for storing a power schedule table. The power control unit is electrically connected with the connecting ports for transmitting electrical power to the connecting ports. The micro controller is connected with the time generator, the storage medium and the power control unit. According to the power schedule table read out from the storage medium by the micro controller and the time information generated by the time generator, a power-outputting status of the power control unit is controlled by the micro controller.06-03-2010
20100138677OPTIMIZATION OF DATA DISTRIBUTION AND POWER CONSUMPTION IN A DATA CENTER - The distribution of data among a plurality of data storage devices may be optimized, in one embodiment, by redistributing the data to move less-active data to lesser performing data storage devices and to move more-active data to higher performing data storage devices. Power consumption in the datacenter may be optimized by selectively reducing power to data storage devices to which less-active data, such as persistent data, has been moved.06-03-2010
20100138676Microprocessors with improved power efficiency - A microprocessor is arranged to process instructions at least some of which contain at least one immediate value which forms an operand of the function, wherein said immediate value is represented in a format which achieves a greater power efficiency than two's complement when said instructions are processed.06-03-2010
20110213994Reducing Power Consumption of Distributed Storage Systems - Methods for reducing the power consumption of distributed storage systems are described. An embodiment describes a storage system which is adapted to reduce its power consumption at times of low load by reducing the number of active versions of the stored data. The data to be stored in the storage system is divided into chunks and in an example, each chunk is replicated on a number of different servers. At times of low load, the system enters a mode of operation in which the number of active replicas is reduced and servers that do not store any active replicas are put into a low power state. When in this mode, writes are written to a versioned store and the data is subsequently copied to servers storing replicas once all the servers have returned to normal power state.09-01-2011
20110213993Data processing apparatus and method for transferring workload between source and destination processing circuitry - In response to a transfer stimulus, performance of a processing workload is transferred from a source processing circuitry to a destination processing circuitry, in preparation for the source processing circuitry to be placed in a power saving condition following the transfer. To reduce the number of memory fetches required by the destination processing circuitry following the transfer, a cache of the source processing circuitry is maintained in a powered state for a snooping period. During the snooping period, cache snooping circuitry snoops data values in the source cache and retrieves the snoop data values for the destination processing circuitry.09-01-2011
20090327778INFORMATION PROCESSING SYSTEM AND POWER-SAVE CONTROL METHOD FOR USE IN THE SYSTEM - A technique for determining task allocation for reducing power consumption of an entire system is disclosed. This system includes physical computers, a cooling apparatus for cooling the physical computers, and a power-saving control server for controlling the physical computers and cooling apparatus. The power-saving control server includes a virtual server layout generator which sets up a plurality of sets of task allocations with respect to the physical computers, a server power calculator for calculating power consumption of the physical computers in each task allocation, a physical computer profile used to estimate a heat release amount of the physical computers in each task allocation, a cooling power calculator which computes power consumption of the cooling apparatus, and a virtual server relocator which determines a task allocation with a total of calculated values of the server/cooling power calculators being minimized to be the optimum task allocation for the physical computers.12-31-2009
20090083559ELECTRONIC DEVICE AND METHOD OF CONTROLLING POWER THEREOF - In an electronic device having a plurality of processing elements PEs that operate in synch with a clock signal, each of the plurality of PEs generates its own operating clock signal in accordance with a clock enable signal that is input together with data from an outside or from a PE of a preceding stage, processes the input data in response to this operating clock signal, outputs this processed data to a PE of a succeeding stage and outputs the clock enable signal to the PE of the succeeding stage, and halts generation of its own operating clock signal when output of the processed data is completed following completion of processing of the data.03-26-2009
20110087904SMART POWER MANAGEMENT SYSTEM AND METHOD THEREOF - The present invention provides a smart power management system, comprising a power management apparatus and at least one electric socket device. The plurality of electric socket devices produce a second wireless signal according to power consumption, and the power management apparatus receives the second wireless signal and computes relevant cost or the carbon footprint information shown on a display unit for reference. In addition, the power management apparatus also compares a setup signal inputted by a user to the second wireless signal, the electricity cost or the carbon footprint information to produce a first wireless signal, thereby controlling the plurality of electric socket devices for providing power supply or stopping power supply.04-14-2011
20100131785POWER MANAGEMENT OF COMPUTERS - A method of controlling power consumption in a computer uses a power management program installed on the computer to detect the identities of processes running on the computer which maintain the computer in a high power state in the absence of input activity. The program compares the identity of the or each process running on the computer with a set of identities of previously identified processes and causes the computer to adopt a low power state if the detected identity of a process, or the detected identities of all the processes, running on the computer is/are in the set of previously identified processes.05-27-2010
20100131784POWER SAVINGS FOR MULTI-THREADED PROCESSORS - Methods and apparatuses are presented that allow power savings on a processor executing a plurality of threads on a plurality of cores. The method may include providing a first timing signal to a processor, determining the power requirements of the processor, loading a symbol into a shift register, where the symbol may be associated with the power requirements of the processor, providing a second timing signal to the processor, where the second timing signal may include a gated representation of the first timing signal and the symbol.05-27-2010
20100131783System and Method of Dynamically Switching Queue Threshold - A system and method of dynamically switching the threshold of a data queue, such as FIFO, is disclosed. The data queue has a first threshold and a second threshold, wherein the first threshold is greater than the second threshold. The data queue is dynamically switched between the first threshold and the second threshold according to different power state of a central processing unit (CPU). A system memory is requested to fill the data queue with data whenever amount of the data queue is less than the switched first/second threshold.05-27-2010
20110078476KEY INPUT APPARATUS USING A SWITCHING MATRIX - The present invention relates to a key input apparatus for a switching matrix. The present invention includes a column scan control device including switching units connected to the lines in the column scan direction in one-to-one correspondence in response to a column scan signal and an enable signal (EN) from the main controller, and performing a column scan operation for each of the modes according to a switching operation of the switching units of selectively receiving two input voltages (Vup and VA) for each column in normal scan mode and receiving a standby voltage (Vh) in power saving mode; and a row scan control device for performing a row scan in response to a row scan signal from the main controller in synchronization with a column scan signal from the column scan control device in normal scan mode, and operating in power saving mode in response to the enable signal (EN). Accordingly, the key input apparatus of the present invention controls a switch matrix using a switch having a simple construction, thereby providing the advantages of removing the ghost key phenomenon, operating in power saving mode and reducing manufacturing cost.03-31-2011
20110078475Transitioning a Computing Platform to a Low Power System State - A method which includes initiating a power management policy based on a processing element for a computing platform entering a given power state. The power management policy includes a determination as to whether an input/output (I/O) controller and a memory controller for the computing platform are substantially quiescent. The computing platform may then be transitioned to a low power system state from a run power system state based on a determination that both the I/O controller and the memory controller are substantially quiescent and an indication that the computing platform is capable of entering the low power system state. According to this method, the low power system state includes entering one or more devices responsive to the computing platform in a power level adequate to retain a configuration state that enables the one or more devices to transition back to the run power system state in a manner that is substantially transparent to an operating system for the computing platform. Other implementations and examples are also described in this disclosure.03-31-2011
20100011230LINK AGGREGATION WITH DYNAMIC BANDWIDTH MANAGEMENT TO REDUCE POWER CONSUMPTION - Embodiments of the present invention provide configurations and techniques for determining, by link aggregation logic, whether a load of network traffic communicated across a team of aggregated links allows inactivation of one or more aggregated links of the team, wherein the team of aggregated links is coupled with a plurality of network interface cards (NICs). On determining that the load of network traffic communicated across the team of aggregated links allows inactivation of the one or more aggregated links of the team, the link aggregation logic is configured to power off or place into a power save mode one or more NICs of the plurality of NICs corresponding to the one or more aggregated links. Other embodiments may be described and/or claimed.01-14-2010
20100262851NETWORK APPARATUS WITH POWER SAVING CAPABILITY AND POWER SAVING METHOD APPLIED TO NETWORK MODULE - A network apparatus with power saving capability includes a network block, a cable-connection status detection circuit and a control circuit. The network block is used for providing a network communication function. The cable-connection status detection circuit is used for detecting the cable-connection status between the network block and the link partner to generate a detecting result. The control circuit is coupled between the network block and the cable-connection status detection circuit, and implemented for controlling the network block to switch between a first operation mode and a second operation mode according to the detecting result. The power consumption of the network block operating in the first operation mode is higher than the power consumption of the network block operating in the second operation mode.10-14-2010
20090031154POWER SAVING METHOD IN NAS AND COMPUTER SYSTEM USING THE METHOD - Provided is a computer system which includes plurality of computers including a first, second, and third computers, and a storage device coupled to the plurality of computers via a network, in which: the first computer is configured to: access data in a storage area of the storage device; cut, based on settings information and loads on the plurality of computers, at least a part of electric power supplied to the first computer; and send, before cutting the at least a part of electric power supplied to the first computer, a takeover request to the second computer; and the second computer accesses the data within the storage area after receiving the takeover request. With the configuration as described above, power consumption in NAS is reduced.01-29-2009
20090210732INFORMATION PROCESSING APPARATUS AND METHOD OF CONTROLLING THE SAME - This invention provides an information processing apparatus which includes a first storage unit and a second storage unit and implements a function of causing the first storage unit and the second storage unit to store data redundantly while maintaining a power saving mode even upon receiving an access request from an external apparatus in the power saving mode, and a method of controlling the same. To accomplish this, upon receiving an HDD access request in the power saving mode, the information processing apparatus operates after transiting to an HDD access mode in which only minimum necessary functions are activated without activating the main CPU. The contents of the HDD changed during the HDD access mode are stored as history information. Upon transiting from the power saving mode to the normal operating mode, the data in another HDD is updated in accordance with the history information, thereby implementing a mirroring function.08-20-2009
20090210729Automated Power Management of a Peripheral Device - Based on bounds of a period of reduced operation for a base device, a base device generates a power management message for transmission to a peripheral device. In the power management message, the base device inserts bounds of a period of reduced operation for the peripheral device. As a result, the periods of reduced operation conserve battery power in both devices and the two devices may reestablish a communications channel upon reaching the end of the period of reduced operation and resuming normal operations.08-20-2009
20100011232DIGITAL COMPONENT POWER SAVINGS IN A HOST DEVICE AND METHOD - A control arrangement, for example, in a digital component that forms part of a system, draws an input current for its operation and is configured for monitoring an interface for any one of a group of commands and, upon detecting an issued one of the group of commands, operates the component for executing the issued command in an operational mode, and during an idle time on the interface, the control arrangement exclusively monitors the interface for any one of the group of commands such that the input current is limited to a leakage current. The component may draw less than 1 milliamp of current during the idle mode.01-14-2010
20110252255Methods And Apparatuses For Reducing Step Loads Of Processors - Methods and apparatuses for reducing step loads of processors are disclosed. Method embodiments comprise examining a number of instructions to be processed by a processor to determine the types of instructions that it has, calculating power consumption by in an execution period based on the types of instructions, and limiting the execution to a subset of instructions of the number to control the quantity of power for the execution period. Some embodiments may also create artificial activity to provide a minimum power floor for the processor. Apparatus embodiments comprise instruction type determination logic to determine types of instructions in an incoming instruction stream, a power calculator to calculate power consumption associated with processing a number of instructions in an execution period, and instruction throttling logic to control the power consumption by limiting the number of instructions to be processed in the execution period.10-13-2011
20100017632Managing Power-Consumption - Managing power-consumption, for use in a storage system comprising first data stored on one or more storage devices is provided. A receiver receives a policy comprising a power-management parameter, a first parameter and a rule associated with the policy. An analyser, responsive to receipt of a policy, analyzes second data associated with the rule. A determiner, responsive to the analysis, determines third data in accordance with the second data. The third data is associated with migration of the first data.01-21-2010
20100064154OPERATING SYSTEM (OS) VIRTUALISATION AND PROCESSOR UTILIZATION THRESHOLDS FOR MINIMIZING POWER CONSUMPTION IN MOBILE PHONES - A mobile phone that uses OS virtualization for minimizing power consumption in mobile phones is provided. Apparatus and methods may involve conserving processor power in a mobile phone according to the invention may include the following steps. A first step may be awakening a first processing core from a low power state in response to a first operating system (OS) thread. A following step may include processing the first OS thread using the first processing core. A next step may include determining whether utilization of the first processing core over a first time period has exceeded a predetermined threshold. The method may also include awakening a second processing core from a low power consumption state if utilization of the first processing core over a first time period has exceeded a predetermined threshold.03-11-2010
20090217067Systems and Methods for Reducing Power Consumption in a Redundant Storage Array - A method for reducing power consumption in a mirrored disk array including first disk resources mirrored with second disk resources is provided. A write request to write particular data to the mirrored disk array is received. In response to receiving the write request, the first disk resources are spun to write the particular data to the first disk resources, and the particular data is stored to a cache memory without spinning the second disk resources. Subsequent to storing the particular data to the first disk resources and storing the particular data to the cache memory, the second disk resources are spun to write the particular data from the cache memory to the second disk resources.08-27-2009
20090217066CONTROLLING CONNECTION STATUS OF NETWORK ADAPTERS - A method, medium and implementing processing system are provided for controlling the number of Ethernet adapters connected in an EtherChannel depending upon the current bandwidth requirements of the system. This system reduces power consumption, inter alia, wherever possible while not sacrificing performance or flexibility of an EthernetChannel. An exemplary embodiment EtherChannel's total bandwidth utilization is monitored and controlled. When the bandwidth utilization is a predetermined amount less than or more than a predetermined threshold level, power supplied to one or more of the physical Ethernet adapters that are part of the EtherChannel is adjusted, i.e. reduced or increased, accordingly. In another embodiment, in systems where ethernet devices support different levels of power, the power supplied to one or more adapters can be systematically incrementally reduced or increased in response to reduced or increased bandwidth utilization.08-27-2009
20090217065POWER MANAGEMENT BASED ON POLICY - A machine's power usage may be managed by a power-management policy. When a program makes a request that involves use of one of the machine's power-consuming devices, the policy may take into account factors such as the program's status, where the status indicates the program's relative level of justification to consume power. A component may intercept a request to use a device before the request reaches the driver, and may deflect requests that, if carried out, are not consistent with power usage policy. Infrastructure supports the use of policies that determine whether a particular device's power state will be changed.08-27-2009
20100058084Self-Tuning Power Management Techniques - Power management techniques include a method for power management of a processor chip which comprises the following steps. An initial operating level is set for the processor chip. After a predetermined time interval, slack is calculated. If the slack is greater than zero, the initial operating level is increased to a next higher level, otherwise the initial operating level is maintained. After the predetermined time interval, the slack is re-calculated and further includes accumulated slack. If the re-calculated slack is greater than zero, the operating level is increased to the next higher level if the processor chip is being operated at the initial operating level, otherwise the operating level is returned to the initial operating level if the processor chip is being operated at the next higher operating level. The steps to re-calculate the slack and either increase the operating level to the next higher level or return the operating level to the initial operating level are repeated.03-04-2010
20100058082MAINTAINING NETWORK LINK DURING SUSPEND STATE - A low power processor in a computer is kept energized in a suspend state in which a main processor of the computer is deenergized. The low power processor maintains a network connection by sending keepalive packets as required by the network communication protocol.03-04-2010
20110252253ENERGY SAVING CIRCUIT OF MOTHERBOARD - A voltage regulating circuit converts a first voltage and provides the converted first voltage to a first voltage pin of a north bridge chip after receiving a control signal from a south bridge chip. A second voltage pin of the north bridge chip is connected to a voltage converting circuit for receiving a second voltage. The logic control circuit receives a control signal from the super I/O chip and outputs a first control signal to turn on the switch to connect the first and the second voltage pins together. The logic control circuit also outputs a second control signal to the voltage regulating circuit to control the voltage regulating circuit to stop providing the converted first voltage to the first voltage pin of the north bridge chip. The voltage converting circuit provides the second voltage to the first voltage pin of the north bridge chip via the switch.10-13-2011
20110087905Changing Operating State of a Network Device on a Network Based on a Number of Users of the Network - Object To control a network printer such that, when the number of active user computers in the vicinity of the network printer is large, the network printer is set in a standby state and, when that number is small, the network printer is powered off to achieve reduced office power consumption. Solution A method for managing a first unit and one or more other units connected to the first unit over a network is provided. The method includes (i) detecting, by a management unit, an operating state of the other units positioned within a specific range from the first unit on the basis of a location of each of the first and other units over the network, the operating state including at least an operating state at which a service request is capable of being transmitted to the first unit. The method further includes (ii) transmitting, by the management unit, to the first unit, an instruction to change an operating state of the first unit depending on a number of the other units being in the detected operating state at which the service request is capable of being transmitted.04-14-2011
20110154073SYSTEMS AND METHODS FOR ENERGY EFFICIENT LOAD BALANCING AT SERVER CLUSTERS - Methods and systems to balance the load among a set of processing units, such as servers, in a manner that allows the servers periods of low power consumption. This allows energy efficient operation of the set of processing units. Moreover, the process is adaptable to variations in systemic response times, so that systemic response times may be improved when operational conditions so dictate.06-23-2011
20110087907POWER SAVING METHOD AND APPARATUS - A method and an apparatus for enabling battery power saving in an associated device is disclosed. Said battery saving is enabled by receiving electromagnetic energy carried by a wireless signal, obtaining operating power from the received electromagnetic energy, receiving a data unit over a wireless link, storing the data unit in a memory, and providing the data unit from the memory in response to a memory read request received via an input/output controller.04-14-2011
20110087906NETWORK MANAGEMENT APPARATUS - A network management/apparatus connected to a plurality of packet relay apparatuses constituting a group through a network includes an energy saving level calculation unit for calculating an energy saving level of each of the packet relay apparatuses on the basis of a CPU usage ratio of the packet relay apparatus managed or a difference between the present energy saving level and the energy saving level of minimum guarantee of the packet relay apparatus, and an energy saving function setting unit for setting an energy saving function of the packet relay apparatuses on the basis of the energy saving level calculated by the energy saving level calculation unit.04-14-2011
20110083025Anticipatory Power Management for Battery-Powered Electronic Device - Methods and apparatus for managing power consumption of a battery-powered electronic device are disclosed. According to one embodiment, power management can take action to reduce power consumption to accommodate estimated power requirements. According to another embodiment, power management can notify a user when a power deficiency is anticipated. According to still another embodiment, power management can advise a user to charge a battery of the battery-powered electronic device. According to still another embodiment, a user can influence power management by user selections.04-07-2011
20120036379Power Control for Information Handling System Having Shared Resources - An information handling system includes at least two processing systems that share system resources. In response to detecting a designated event, a power control module of the information handling system can select one of a plurality of available power profiles. The power profile can be selected based on the event and state information indicative of a state of the processing systems. Based on the selected profile, the power control module can set an operational power mode of one or more of the shared system resources.02-09-2012
20110072285Method and System for No Buffered Traffic Indication for Wireless Local Area Network (WLAN) Power Save - Aspects in a method and system for no buffered traffic indication for wireless local area network (WLAN) power save may enable a peer communication device to determine a time duration for remaining in an active operating state based on communication with other peer communication devices. In one aspect, a given peer communication device may determine that it has no data to communicate to any of the remaining peer communication devices. The given communication device may communicate to each of the peer communication devices that there is no data to transmit to the peer communication device. Each of the peer communication devices may communicate that there is no data to transmit to the given peer communication device. Based on the communications, the given peer communication device may exit the active operating state and enter a low power operating state.03-24-2011
20120303988DATA PROCESSING APPARATUS AND DATA PROCESSING METHOD - When a packet received in a deep sleep mode matches a packet stored in a WOL-pattern storage region, a network portion performs reply processing suited for the matched packet after returning a power supply mode of a power supply unit from the deep sleep mode to a normal mode. When the packet received in the deep sleep mode matches a packet stored in a proxy-response-pattern storage region, the network portion performs reply processing suited for the matched packet while maintaining the power supply mode of the power supply unit at the deep sleep mode.11-29-2012
20120303987ENERGY CONTROL APPARATUS AND METHOD USING PROPERTY OF ELECTRONIC DEVICE - An energy control apparatus and method using a usage property of an electronic device. The energy control method may include: setting a total power consumption to be less than a predetermined threshold; verifying a usage property for each electronic device when a collected total power consumption exceeds the threshold; calculating a scheduled end time based on the average usage time of each remaining electronic device excluding, from among operating devices, an electronic device of which power-off is unavailable; verifying a remaining electronic device excluding an electronic device of which scheduled end time is less than the threshold; controlling a temporarily stoppable electronic device to be temporarily stopped; controlling a power adjustable electronic device to decrease a power consumption when the total power consumption exceeds the threshold; and starting the temporarily stopped electronic device at a point in time when the total power consumption decreases to be less than the threshold.11-29-2012
20120303986Verifying state integrity in state retention circuits - A data processing apparatus is provided comprising data processing circuitry configured to perform data processing operations. A plurality of state retention circuits forms part of the data processing circuitry and these circuits are configured to hold respective state values at respective nodes of the data processing circuitry it enters a low power mode. One or more scan paths connect the plurality of state retention circuits together in series, such that the state values may be scanned into and out of the respective nodes. A plurality of parity information generation elements are coupled to the scan path(s) and configured to generate parity information indicative of the respective state values held at those respective nodes by the state retention circuits. The plurality of parity information generation elements are arranged to provide one or more parity path(s), such that an output parity value generated at an output of the parity path will invert if one of said respective state values changes, providing an external indication of the integrity of the state values held by the state retention circuits.11-29-2012
20110078474METHOD OF CONTROLLING POWER CONSUMPTION OF A MEMORY ACCORDING TO MAPPING - There is provided a method of controlling power consumption of a memory, which is executed in a computer system including operation server and a management server. The operation server includes one or more memory chips which are units to control the power consumption of the memory, a power control module for controlling power consumption of the memory chips, and a virtualization module for operating one or more virtual servers. The management server manages the mapping between the one or more virtual servers and the one or more memory chips. The method comprises the steps of instructing the operation server to change the power consumption of the one or more memory chips based on whether the obtained access information is capable of achieving predetermined target performance and the mapping information, and changing the power consumption of the one or more memory chips based on the instruction from the management server.03-31-2011
20110078473LATENCY BASED PLATFORM COORDINATION - In some embodiments, an electronic apparatus comprises at least one processor, a plurality of components, and a policy engine comprising logic to receive latency data from one or more components in the electronic device, compute a minimum latency tolerance value from the latency data, and determine a power management policy from the minimum latency tolerance value.03-31-2011
20110078471ACCESS CONTROL APPARATUS OF DATA STORAGE DEVICE - An access control apparatus of a data storage device includes a first connecting unit configured to be removably connected with a power supply device, perform data transmission through a first data-transmission line, and be supplied with power through a first power-transmission line, a second connecting unit configured to be removably connected with the data storage device, perform data transmission through a second data-transmission line, and supply power through a second power-transmission line, a data transfer processing unit configured to perform data transfer between the power supply device and the data storage device, a power consumption measuring unit configured to measure power supplied from the power supply device through the first power-transmission line, and a power-transmission capability monitoring unit configured to control the data transfer processing unit in accordance with power consumption measured by the power consumption measuring unit.03-31-2011
20110078469METHOD AND APPARATUS FOR LOW POWER OPERATION OF MULTI-CORE PROCESSORS - Embodiments of an apparatus, system and method are described for low power operation of a multi-core processing system. An apparatus may comprise, for example, a power management module operative to initialize a low power mode, detect one or more un-affinitized software threads, and affinitize the one or more un-affinitized software threads to run on a set of processor cores of a multi-core processor, wherein the set of processor cores comprises less than a total number of processor cores of the multi-core processor. Other embodiments are described and claimed.03-31-2011
20110078472COMMUNICATION DEVICE AND METHOD FOR DECREASING POWER CONSUMPTION - A first communication device determines whether a communication device that is not included in a routing path exists through an exchange of routing information with a plurality of adjacent communication devices. In this case, if a communication device that is not included in a routing path exists, the first communication device notifies a corresponding communication device to operate in a power saving mode, operates to decrease power use that is related to the corresponding communication device, and the communication device, having received the notification operates in a power saving mode.03-31-2011
20110252251Hardware Automatic Performance State Transitions in System on Processor Sleep and Wake Events - In an embodiment, a power management unit (PMU) may automatically transition (in hardware) the performance states of one or more performance domains in a system. The target performance states to which the performance domains are to transition may be programmable in the PMU by software, and software may signal the PMU that a processor in the system is to enter the sleep state. The PMU may control the transition of the performance domains to the target performance states, and may cause the processor to enter the sleep state. In an embodiment, the PMU may be programmable with a second set of target performance states to which the performance domains are to transition when the processor exits the sleep state. The PMU may control the transition of the performance domains to the second targeted performance states and cause the processor to exit the sleep state.10-13-2011
20110060927APPARATUS, SYSTEM, AND METHOD FOR POWER REDUCTION IN A STORAGE DEVICE - An apparatus, system, and method are disclosed for managing power consumption in a data storage device. An audit module monitors a power consumption rate of the data storage device relative to a power consumption target. A throttle module adjusts execution of one or more operations on the data storage device in response to the power consumption rate of the data storage device failing to satisfy the power consumption target. A verification module verifies whether the power consumption rate of the data storage device satisfies the power consumption target in response to adjusting the execution of the one or more operations.03-10-2011
20110029793GENERATING A SIGNAL TO REDUCE COMPUTER SYSTEM POWER CONSUMPTION FROM SIGNALS PROVIDED BY A PLURALITY OF POWER SUPPLIES - A signal suitable for signaling a computer system to reduce power consumption is generated from a plurality of power supplies. The signal is asserted when at least one of the power supplies of the plurality of power supplies signals impairment, and at least one of the power supplies of the plurality of power supplies signals that the power supply is supplying current above a threshold level.02-03-2011
20110252252SYSTEM AND METHOD FOR IDENTIFYING AND REDUCING POWER CONSUMPTION BASED ON AN INACTIVITY PERIOD - A system and method for identifying and reducing power consumption in a rendering device based on an inactivity period. Historical data based on a customer usage pattern can be analyzed to detect the inactivity period (e.g., end of day) and to intelligently force the device into a lower energy state. A sleep and low power time can be calculated and a sleep and low power time out period can be reduced to a minimum value based on the inactivity period.10-13-2011
20110213995Method, Apparatus And Computer Program Product Providing Instruction Monitoring For Reduction Of Energy Usage - A method is disclosed to operate a power advisor. The method includes, reading a first instruction set; reading a data bus; and reading register value(s) stored in at least one data register. This information is analyzed for energy usage purposes. If a set of instruction can provide the same result with a lower energy usage, the first instruction set is replaced with the lower power usage instruction set. An apparatus and computer program product are also disclosed.09-01-2011
20110258469POWER REDUCTION FOR SYSTEM ON CHIP - Disclosed herein are SOC devices with peripheral units having power management logic.10-20-2011
20100325455MEMORY CARD CONTROL DEVICE AND METHOD FOR CONTROLLING THE SAME - A memory card control device includes an insertion unit to which a memory card is inserted, a memory card controller to control writing and reading of data to/from the memory card inserted in the insertion unit, an interface controller to send and receive the data written or read to/from the memory card to/from a host computer, a clock supplier to supply a clock signal to the memory card controller and the interface controller, a memory card detector to detect presence or absence of the memory card inserted in the insertion unit, and a low power consumption mode switching unit to switch the memory card controller and the interface controller to a low power consumption mode in response to the absence of the memory card detected by the memory card detector.12-23-2010
20100313045STORAGE ARRAY POWER MANAGEMENT USING LIFECYCLE INFORMATION - A multi-device storage system can be arranged into power saving systems by placing one or more storage devices into a reduced power consuming state when the storage activity associated with the system is sufficiently reduced that an attendant decrease in throughput will not materially affect users of the storage system. Where data redundancy is provided for, a redundant storage device can be placed into the reduced power consuming state and its redundancy responsibilities can be transitioned to a partition of a larger storage device. Such transitions can be based on specific parameters, such as write cycles or latency, crossing thresholds, including upper and lower thresholds, they can also be based on pre-set times, or a combination thereof. Lifecycle information, including lifecycle information collected in real-time by storage devices on a block-by-block basis, can be utilized to obtain historical empirical data from which to select the pre-set times.12-09-2010
20100313044STORAGE ARRAY POWER MANAGEMENT THROUGH I/O REDIRECTION - A storage system can comprise multiple storage devices with differing characteristics, including differing power-related characteristics. A storage power manager can redirect Input/Output (I/O) communications to storage devices to maximize the power efficiency of the storage system. The storage power manager can reference metadata associated with the data of an I/O request, as well as power-related data, including continuously varying data and storage device characteristics, to select one or more storage devices to which to redirect the I/O. The storage power manager can also move or copy data between storage devices to facilitate maximum utilization of power efficient storage devices with limited storage capacity and to enable the placing of one or more storage devices into a reduced power consuming state. The moving or copying of data can be performed with reference to lifecycle information to identify data that has changed since a storage device was last active.12-09-2010
20100122099APPARATUS AND METHOD FOR CONTROLLING POWER CONSUMPTION IN A MULTI MODEM SYSTEM - An apparatus and a method for controlling power consumption in a system having a plurality of modems are provided. In the method, whether an interrupt is generated in each modem is detected. An amount of current consumption of the system at a processing point of the generated interrupt is determined. The amount of current consumption of the system is compared with a threshold, so that the processing point of the generated interrupt is controlled.05-13-2010
20110161703PCI EXPRESS ENHANCEMENTS AND EXTENSIONS - A method and apparatus for enhancing/extending a serial point-to-point interconnect architecture, such as Peripheral Component Interconnect Express (PCIe) is herein described. Temporal and locality caching hints and prefetching hints are provided to improve system wide caching and prefetching. Message codes for atomic operations to arbitrate ownership between system devices/resources are included to allow efficient access/ownership of shared data. Loose transaction ordering provided for while maintaining corresponding transaction priority to memory locations to ensure data integrity and efficient memory access. Active power sub-states and setting thereof is included to allow for more efficient power management. And, caching of device local memory in a host address space, as well as caching of system memory in a device local memory address space is provided for to improve bandwidth and latency for memory accesses.06-30-2011
20100115306METHOD AND SYSTEM FOR CONTROL OF ENERGY EFFICIENCY AND ASSOCIATED POLICIES IN A PHYSICAL LAYER DEVICE - Aspects of a method and system for physical layer control of energy efficiency and associated policies in a physical layer device. In this regard, operation of a PHY device may be controlled based on one or more energy efficient networking (EEN) control policies executed from within the PHY device. The one or more control policies may enable management of power consumption associated with communication of data via the PHY device. A mode of operation of the PHY device may be selected based on the control policy. One or more components of the PHY device may be reconfigured based on the selected mode of operation. The selected mode of operation may comprise a low power idle (LPI) mode of operation or a subset PHY mode of operation. The control policy may be executed within the PHY device utilizing hardware, software, and/or firmware within the PHY device.05-06-2010
20120066527Information Processing Apparatus and Device Control Method - According to one embodiment, an information processing apparatus includes a plurality of power control target devices, a storage unit configured to store management data, and a device management module. The device management module is configured to determine whether a new process is started, based on process information indicative of a list of processes which are being executed, the process information being managed by an operating system, to determine, based on the management data, when the new process is started, one or more power control target devices which are used by an application program corresponding to the new process, and to power on, among the determined one or more power control target devices, a power control target device which is in a power-off state.03-15-2012
20110258468OPTIMIZING POWER MANAGEMENT IN PARTITIONED MULTICORE VIRTUAL MACHINE PLATFORMS BY UNIFORM DISTRIBUTION OF A REQUESTED POWER REDUCTION BETWEEN ALL OF THE PROCESSOR CORES - Handling requests for power reduction by first enabling a request for an amount of power change, e.g. reduction by any partition. In response to the request for power reduction, an equal proportion of the whole amount of power reduction is distributed between each of a set of cores providing the entitlements to the partitions, and the entitlement of the requesting partition is reduced by an amount corresponding to the whole amount of the power change.10-20-2011
20080229128System and Computer Program Product for Dynamically Managing Power in MicroProcessor Chips According to Present Processing Demands - A method, system, and computer program product are disclosed for dynamically managing power in a microprocessor chip that includes physical hardware elements within the microprocessor chip. A process is selected to be executed. Hardware elements that are necessary to execute the process are then identified. The power in the microprocessor chip is dynamically altered by altering a present power state of the hardware elements that were identified as being necessary.09-18-2008
20080229127Method and System for Estimating Processor Utilization from Power Measurements - A method and system for estimating processor utilization from power measurements provides an estimate of processor utilization that can be computed outside of the processor and operating system. Measurements of the processor power consumption are gathered over short intervals in a histogram. The idle power consumption of the processor is determined, and a threshold value higher than the idle power consumption level is computed from the idle power consumption. The number of histogram counts for bins greater than the threshold is normalized to the total number of measurements, providing a fractional value that corresponds to the processor utilization over the measurement interval. The fractional value can then be used in a power management algorithm that adjusts the frequency and optionally the voltage of the processor or group of processors based on their utilization.09-18-2008
20100011231ACCESS POINT ROTATION FOR SHARING POWER LOAD - Aspects of the disclosure provide a method for sharing power load in a network. The method includes identifying a first device to serve as an AP of the network in a next time interval, providing network information from a second device that presently serves as the AP to the first device. When the first device starts to serve as the AP of the network, the second device can be configured to enter into a power save state in order to reduce power consumption by the second device in the next time interval.01-14-2010
20090249096ENERGY EFFICIENT DATA TRANSMISSION - A method and apparatus for data transmission at energy efficient rates. An embodiment of an apparatus includes a port for the transfer of data. The port has an active state in which the port may transmit or receive data and an inactive state in which the port does not transmit or receive data. The apparatus further includes logic to control the transfer of data. The logic places the port into the active state for a first time period for the transfer of data and places the port into the inactive state for a second time period. The logic further prevents transfer of data during the inactive state.10-01-2009
20110154074POWER MANAGEMENT METHOD AND COMPUTER SYSTEM APPLYING THE SAME - A power management method adapted in a computer system is provided. The computer system includes a main monitor and a host. A management method includes the following steps. First, whether the main monitor is turned off or not is determined. When the main monitor is turned off, a power saving program is executed to reduce the power of the host. Furthermore, a computer system applying the above power management method is also provided.06-23-2011
20110154071METHOD AND APPARATUS FOR POWER PROFILE SHAPING USING TIME-INTERLEAVED VOLTAGE MODULATION - Embodiments of an apparatus, system and method are described for dynamically time-interleaving supply voltage modulation to shape a power profile. An apparatus may comprise, for example, a power management module to monitor power information received from a plurality of devices and send a power control signal including delay information to each device having power information that exceeds a power threshold, the delay information comprising information for time-interleaving power usage among the devices having power information that exceeds the power threshold. Other embodiments are described and claimed.06-23-2011
20080307240POWER MANAGEMENT ELECTRONIC CIRCUITS, SYSTEMS, AND METHODS AND PROCESSES OF MANUFACTURE - An electronic circuit including a power managed circuit (12-11-2008
20120204044METHOD OF CONTROLLING NETWORK SYSTEM - Provided is a method of controlling a network system. The method includes recognizing power information and an operation mode of an electric product, and providing an energy-saving operation mode to the electric product or operating the electric product in the energy-saving operation mode for reducing an energy-related value based on the recognized power information and the operation mode of the electric product.08-09-2012
20120311358METHOD FOR ACTIVATING CARD WITHIN A COMMUNICATION NETWORK - A method for activating a card within a communication network, making it possible to minimize the power consumption cost of putting the card into effect. The method consists of seeking out, and activating as a priority, cards which are located in already-activated receptacles. A receptacle may be a tray or cabinet in a predetermined search range corresponding to one or more nodes of said communication network.12-06-2012
20120311357MULTI-LEVEL THERMAL MANAGEMENT IN AN ELECTRONIC DEVICE - An electronic device is configured to manage heat in the device using a multi level thermal management process. When the temperature of the device reaches a level that requires the device to take action to adjust its thermal behavior, a system level controller identifies a component in the device as being active and that can be controlled to adjust heat generation in the device. Once an active component is identified, a component level controller sets an activity limit for the identified active component that is at or above a minimum activity limit of the component and prevents the component from operating above this activity limit. Other embodiments are also described and claimed.12-06-2012
20110055605SYSTEM AND METHOD FOR MANAGING ENERGY CONSUMPTION IN A COMPUTE ENVIRONMENT - A system, method and non-transitory computer readable storage medium are disclosed for managing workload in a data center. The method includes receiving, at a workload manager, energy consumption information associated with at least one of a first data center and a second data center that is geographically distanced from the first data center. The method further includes receiving workload information associated with at least one of the first data center and the second data center, and transmitting, as controlled by the workload manager, at least part of workload scheduled to be processed at the second data center to the first data center based on at least one of the energy consumption information and the workload information.03-03-2011
20110055604SYSTEM AND METHOD FOR MANAGING ENERGY CONSUMPTION IN A COMPUTE ENVIRONMENT - A system, method and non-transitory computer readable storage medium are disclosed for managing workload in a data center. The method includes receiving, at a workload manager, energy consumption information. The method further includes receiving workload information about a second data center that is remote from a first data center, and receiving, as controlled by the workload manager, at the first data center at least a portion of workload associated with the second data center based on at least one of the energy consumption information and the workload information.03-03-2011
20110055603POWER MANAGEMENT FOR PROCESSOR - Techniques are generally described related to management of power consumption for a processor. One example method may include identifying a target operating constraint and a first operating parameter; determining a second operating parameter based on the target operating constraint and the first operating parameter; estimating an actual operating constraint; comparing the target operating constraint and the actual operating constraint; and setting up the first operating parameter and the second operating parameter of the processor based on a comparison of the target operating constraint and the actual operating constraint, wherein the target operating constraint is not a worst-case operating constraint. Other examples of methods, systems, and computer programs related to managing power consumption for a processor are also contemplated.03-03-2011
20110055602MECHANISM FOR MANAGING POWER IN A VIRTUAL MACHINE SYSTEM - A mechanism for managing power in a virtual machine system is disclosed. A method for a host-based power management system may include monitoring a plurality of VMs in a VM system to detect user activity associated with each of the plurality of VMs, identifying a VM of the plurality of VMs that is inactive based on the user activity associated with the VM, and applying a power reduction policy to the VM.03-03-2011
20080201588SEMICONDUCTOR DEVICE AND METHOD FOR REDUCING POWER CONSUMPTION IN A SYSTEM HAVING INTERCONNECTED DEVICES - A system includes a plurality of memory devices connected in-series that communicate with a memory controller. A memory device designated by an ID number performs operations at a normal power consumption level. The other devices not designated perform signal forwarding operations at a reduced power consumption level. The designated memory device enables its internal clock generator to generate all clocks necessary for operations. The non-designated memory devices generate clocks to perform partial operations for forwarding commands to next memory devices. In another example, memory devices do not forward the input command to the next memory device when there is no ID match. In another example, a memory device transmits the command replacing the content thereof with a static output when there is an ID match. Such partial clock generation, non-forwarding of commands and replacing the command contents will cause the system to operate at the reduced power consumption level.08-21-2008
20080201587ANTICIPATORY POWER MANAGEMENT FOR BATTERY-POWERED ELECTRONIC DEVICE - Methods and apparatus for managing power consumption of a battery-powered electronic device are disclosed. According to one embodiment, power management can take action to reduce power consumption to accommodate estimated power requirements. According to another embodiment, power management can notify a user when a power deficiency is anticipated. According to still another embodiment, power management can advise a user to charge a battery of the battery-powered electronic device. According to still another embodiment, a user can influence power management by user selections.08-21-2008
20110179296SYSTEMS, METHODS AND DEVICES FOR LIMITING CURRENT CONSUMPTION UPON POWER-UP - Embodiments are described including those for controlling peak current consumption of a multi-chip memory package during power-up. In one embodiment, each memory device of the multi-chip package includes a power level detector used to compare an internal voltage signal to a threshold. A current limiter controls the ramping rate of the internal voltage signal in response to the power level detector as the internal voltage signal ramps up towards the threshold.07-21-2011
20110179295METHOD, APPARATUS AND SYSTEM TO DYNAMICALLY CHOOSE AN OPTIMUM POWER STATE - Some embodiments of the invention include an apparatus and method for dynamically choosing an optimum power state. In some embodiments, the optimum power state may be determined from historical information about the various power states that any of the embodiments of the apparatus or a system equipped with embodiments of the apparatus or operating embodiments of the method may encounter. Some embodiments may generate registers to maintain information regarding the various power states. In some embodiments, power management logic may determine the optimum power state based upon this information. Other embodiments are described.07-21-2011
20110179294MULTIFUNCTIONAL DEVICE AND CONTROL METHOD - In a multifunctional device, a packet analysis unit determines whether a received packet contributes to inhibition of a power saving mode, stores the time at which a packet is received and information indicating whether a packet is received during the power saving mode as information about the packet determined as contributing to the inhibition thereof, and calculates a period of access by a plurality of packets based on the stored information about the packet and a factor analysis unit classifies the access of which the calculated period is shorter than the waiting time of the power saving mode into an access inhibiting a shift to the power saving mode and classifies the access of which the period is not shorter than the waiting time of the power saving mode and which is made by the packet received during the power saving mode, into an access returning from the power saving mode.07-21-2011
20110264935System And Method For Dynamic Utilization-Based Power Allocation In A Modular Information Handling System - Power from a modular chassis to plural modular information handling systems contained by the chassis is dynamically allocated according to power consumed at each modular information handling system and a priority associated with each modular information handling system. A power manager of the modular chassis allocates power by setting a maximum power for each modular information handling system based upon a priority for each modular information handling system. A power monitor on a modular information handling system requests additional power allocation if power consumed is within a predetermined amount of the maximum power for that system. The power manager allocates additional power in response to the request if another modular information handling system has excess power allocated or if the requesting modular information handling system has a higher priority than another modular information handling system. The requesting system's maximum power is increased and the other system maximum power is decreased so that the maximum power available from the chassis is not exceeded.10-27-2011
20110264933METHOD AND APPARATUS FOR OPTIMAL ALLOCATION OF OPERATING POWER ACROSS MULTIPLE POWER DOMAINS OF A HANDHELD DEVICE - A method and apparatus for power management in a handheld device having various power domains, including an attachable/detachable peripheral device. The power source has an available power amount. The method comprises receiving an indication of a power management event at the handheld device related to operation of a power domain, identifying a predetermined power signature associated with operation of the power domain, determining whether the available power amount is sufficient to operate the power domain in accordance with the predetermined power signature, reducing a power state of another functional upon determining that the available power is insufficient, and allocating the reduced power amount to the first power domain of the handheld device for operation according to the predetermined power signature.10-27-2011
20100287391MEMORY CONTROL CIRCUIT, CONTROL METHOD, AND STORAGE MEDIUM - A circuit configured to change a mode of a plurality of memory devices having a power saving mode includes a command queue configured to hold memory access, and a cancellation unit configured to cancel the power saving mode of target devices of the memory access held up to a predetermined stage of the command queue.11-11-2010
20110072284METHODS OF PREPARING A POWER SAVING STATE, UNIVERSAL SERIAL BUS DEVICE AND UNIVERSAL SERIAL BUS HOST - Methods of preparing a power saving state, a Universal Serial Bus (USB) device and a USB host are provided. A method of preparing a power saving state comprises sending a request from a USB device to a USB host, the USB host being connected to the USB device via a USB and the request requesting that the USB host shall stop any bus traffic on the USB. Another method of preparing a power saving state comprises receiving, at a USB host, a request from a USB device, the USB device being connected to the USB host via a USB and the request requesting that the USB host shall stop any bus traffic on the USB. A USB device and a USB host are configured to carry out the respective methods.03-24-2011
20110191614COMMUNICATION APPARATUS - A communication apparatus that is to be connected to a network includes: a first processing unit configured to transition between a sleep state and a non-sleep state and configured to process a packet received via the network when the first processing unit is in the non-sleep state; and a second processing unit configured to process a packet when the first processing unit is in the sleep state, wherein the second processing unit is capable of executing packet-processing for sequentially processing of unprocessed packets, wherein the second processing unit includes a detecting section that detects a reception of the unprocessed packet, wherein, when the first processing unit is in the sleep state and the reception of the unprocessed packet is detected, the second processing unit starts the packet-processing, and wherein, the second processing unit terminates the packet-processing if a continuous packet-processing period exceeds an allowable time period.08-04-2011
20100293401Power Managed Lock Optimization - In an embodiment, a timer unit may be provided that may be programmed to a selected time interval, or wakeup interval. A processor may execute a wait for event instruction, and enter a low power state for the thread that includes the instruction. The timer unit may signal a timer event at the expiration of the wakeup interval, and the processor may exit the low power state in response to the timer event. The thread may continue executing with the instruction following the wait for event instruction. In an embodiment, the processor/timer unit may be used to implement a power-managed lock acquisition mechanism, in which the processor is awakened a number of times to check the lock and execute the wait for event instruction if the lock is not free, after which the thread may block until the lock is free.11-18-2010
20100293402DEVICE HAVING MULTIPLE GRAPHICS SUBSYSTEMS AND REDUCED POWER CONSUMPTION MODE, SOFTWARE AND METHODS - Many computing device may now include two or more graphics subsystems. The multiple graphics subsystems may have different abilities, and may, for example, consume differing amount of electrical power, with one subsystem consuming more average power than the others. The higher power consuming graphics subsystem may be coupled to the device and used instead of, or in addition to, the lower power consuming graphics subsystem, resulting in higher performance or additional capabilities, but increased overall power consumption. By transitioning from the use of the higher power consuming graphics subsystem to the lower power consuming graphics subsystem, while placing the higher power consuming graphics subsystem in a lower power consumption mode, overall power consumption is reduced.11-18-2010
20110126034POWER MANAGEMENT UTILIZING PROXIMITY OR LINK STATUS DETERMINATION - Methods and apparatuses for power management are disclosed. In one example, proximity of link status of a wireless communication device is used to determine whether a power conservation mode is implemented.05-26-2011
20110126035ENERGY CONSERVATION CONTROL METHOD FOR NETWORK SYSTEM - In an electric power consumption control method of a plurality of network connection devices connected to a network, the plurality of network connection devices are grouped, and on the basis of the traffic amount of the grouped network connection devices, the grouped network connection devices are controlled by a group unit.05-26-2011
20110126033SYSTEMS AND METHODS FOR ELECTRONIC DEVICE POWER MANAGEMENT - Embodiments of the invention implement one or more power management policies on one or more devices in order intelligently to manage the finite amount of battery power available while maximizing synchronization between connected devices.05-26-2011
20110138203UNIVERSAL SERIAL BUS APPARATUS FOR LOWERING POWER CONSUMPTION - A universal serial bus (USB) apparatus for lowering power consumption is provided. The universal serial bus apparatus includes a universal serial bus circuitry, a monitor unit, and a system duty clock generator. The monitor unit is used to monitor a start of frame (SOF) packet generated by the universal serial bus circuitry and generates a clock control signal accordingly. The system duty clock generator receives the clock control signal and a reference clock signal to generate a system duty clock signal. The enable or disable status of the system duty clock signal can be determined according to the SOF packet monitored by the monitor unit so as to make the universal serial bus apparatus enter into runtime idle mode to lower the power consumption.06-09-2011
20110138205OPTIMIZING PROCESSOR OPERATION IN A PROCESSING SYSTEM INCLUDING ONE OR MORE DIGITAL FILTERS - A method for optimizing processor operation in a processing system including one or more digital filters is provided according to the invention. The method includes generating initial filter coefficients for the one or more digital filters of the processing system, determining one or more initial filter coefficients for at least one digital filter of the one or more digital filters that can be dropped and dropping the one or more initial filter coefficients. Dropping the one or more initial filter coefficients reduces a total number of filter coefficients to be used by the processing system.06-09-2011
20110078470Flexible cell battery systems and methods for powering information handling systems - The number of battery cells connected together in a main battery conductor path of a multiple cell battery system of an information handling system may be varied in real time based on one or more operating conditions (e.g., system load power consumption, battery cell failure, etc.) of the information handling system. Defective battery cells may be bypassed such that the defective battery system may continue to operate and power an information handling system at a lower voltage, e.g., either temporarily, permanently or temporarily until the user procures a suitable replacement battery system. Interconnection of cells of a non-defective multiple cell battery system may also be selectively re-arranged to vary battery system voltage at particular times or during particular information handling system operation modes.03-31-2011
20100325454Resource and Power Management Using Nested Heterogeneous Hypervisors - A server includes a plurality of processors, at least some of the processors being partitioned into virtual partitions using a virtual partition hypervisor. At least one of the virtual partitions executes a virtual machine hypervisor to implement a plurality of virtual machines within said at least one of said virtual partitions. The server also executes a workload manager application configured to dynamically reallocate the processors among the virtual partitions.12-23-2010
20130013945METHOD AND APPARATUS FOR A ZERO VOLTAGE PROCESSOR SLEEP STATE - Embodiments of the invention relate to a method and apparatus for a zero voltage processor sleep state. A processor may include a dedicated cache memory. A voltage regulator may be coupled to the processor to provide an operating voltage to the processor. During a transition to a zero voltage power management state for the processor, the operational voltage applied to the processor by the voltage regulator may be reduced to approximately zero and the state variables associated with the processor may be saved to the dedicated cache memory.01-10-2013
20110191612POWER SUPPLY SYSTEM, ELECTRONIC APPARATUS, AND METHOD FOR CONTROLLING POWER SUPPLY SYSTEM - A power supply system includes a plurality of power supply units that each includes an output terminal connected each other in parallel to other output terminals each included in other power supply units and connected to a plurality of load units, a power supply section that inputs an input voltage and outputs a first output voltage from the output terminal to the plurality of load units, and a shut-off control section that shuts off the output of the first output voltage from the output terminal based on an inputted stand-by signal, and a management control unit that inputs a configuration information representing a configuration of each of the plurality of load units in which the first voltage is inputted, and outputs the stand-by signal to any of the plurality of power supply units based on the configuration information.08-04-2011
20110191611MOBILE COMMUNICATION TERMINAL AND METHOD FOR DISPLAYING ICONS ON DISPLAY OF MOBILE COMMUNICATION TERMINAL - A mobile communication terminal configured to run a plurality of application programs is provided, which includes an operation section configured to be operated by a user, a display section configured to display a plurality of icons individually corresponding to the respective programs, a first memory in which a history of use of the programs can be stored, a second memory in which an arrangement of the icons displayed on the display section can be stored, an updating section configured to update the arrangement of the icons stored in the second memory on the basis of the history of use of the programs stored in the first memory, and a display controller configured to display the icons on the display section in accordance with the arrangement stored in the second memory upon the operation section being operated by the user in a specific manner.08-04-2011
20090228727METHOD AND PROGRAM FOR SETTING MICROPROCESSOR POWER SUPPLY VOLTAGE - A determining unit determines the state of the microprocessor. A setting unit sets a power supply voltage to be supplied to the microprocessor according to the state of the microprocessor determined by the determining unit. A power supply circuit supplies the power supply voltage set by the setting unit, to the microprocessor via a power supply line. The determining unit determines repeatedly the state of the microprocessor at preset timing, and the setting unit resets the power supply voltage every time the determination is performed by the determining unit.09-10-2009
20110093728COMPUTER SYSTEM AND CONTROL METHOD THEREOF - A computer system and a control method thereof which activates/inactivates a power management mode depending on a performance of a communication operation by a communication unit to thereby increase a life of a battery and/or retain a high data transmission rate when communicating. The computer system includes a communication unit which receives operating power and performs a network communication with an external device; and a controller which identifies a performance of a communication operation of the communication unit and controls the communication unit to reduce a consumption of the operating power supplied to the communication unit if the communication unit does not perform the communication operation, and controls the communication unit not to reduce the consumption of the operating power supplied thereto if the communication unit performs the communication operation.04-21-2011
20110093727IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - Disclosed is an image forming apparatus includes an imaging forming unit configured to form an image; a main controller configured to control an operation of the imaging forming unit; a USB interface configured to receive and to transmit USB data from and to a host apparatus; a power supply configured to supply power to the image forming unit and the main controller; a switch configured to supply power selectively under the control of the main controller; and a sub controller configured to output a power control signal for turning on the switch if USB data is received from the host apparatus in a sleep mode during which the main controller is turned off. Power consumption is thereby reduced by turning off the power to the main controller in the sleep mode.04-21-2011
20110093726Memory Object Relocation for Power Savings - A computer system may manage objects in memory to consolidate less frequently accessed objects into memory regions that may be operated in a low power state where the access times may increase for the memory objects. By operating at least some of the memory regions in a low power state, significant power savings can be realized. The computer system may have several memory regions that may be independently controlled and may move memory objects to various memory regions in order to optimize power consumption. In some embodiments, an operation system level function may manage memory objects based on parameters gathered from usage history, memory topology and performance, and input from applications.04-21-2011
20120173906Optimizing Energy Consumption and Application Performance in a Multi-Core Multi-Threaded Processor System - A mechanism is provided for scheduling application tasks. A scheduler receives a task that identifies a desired frequency and a desired maximum number of competing hardware threads. The scheduler determines whether a user preference designates either maximization of performance or minimization of energy consumption. Responsive to the user preference designating the performance, the scheduler determines whether there is an idle processor core in a plurality of processor cores available. Responsive to no idle processor being available, the scheduler identifies a subset of processor cores having a smallest load coefficient. From the subset of processor cores, the scheduler determines whether there is at least one processor core that matches desired parameters of the task. Responsive to at least one processor core matching the desired parameters of the task, the scheduler assigns the task to one of the at least one processor core that matches the desired parameters.07-05-2012
20110145609POWER AWARE MEMORY ALLOCATION - A computer system may place memory objects in specific memory physical regions based on energy consumption and performance or other policies. The system may have multiple memory regions at least some of which may be powered down or placed in a low power state during system operation. The memory object may be characterized in terms of access frequency, movability, and desired performance and placed in an appropriate memory region. In some cases, the memory object may be placed in a temporary memory region and later moved to a final memory region for long term placement. The policies may allow some processes to operate while consuming less energy, while other processes may be configured to maximize performance06-16-2011
20120151230IMAGE PROCESSING APPARATUS, CONTROL METHOD FOR IMAGE PROCESSING APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM - An image processing apparatus includes a managing part to perform a first process to store the log information in a storage unit and a second process necessary to turn OFF a main power, a generating part to generate the log information by performing a third process necessary to turn OFF the main power, and to send to the managing part a first request signal causing the managing part to perform the first process on the generated log information, and a request part to send to the managing part a second request signal causing the managing part to perform the second process and to send to the generating part a third request signal causing the generating part to perform the third process, when a detecting part detects an OFF state of a main power switch.06-14-2012
20090300387OPERATION METHOD OF STORAGE APPARATUS, STORAGE APPARATUS AND STORAGE SUBSYSTEM - Proposed is an operation method for seeking a power interruption operation target in which MTBF will become longest. When a target value regarding a power interruption time and a target value regarding a power interruption count per 24 hours is input from an administrator to a management computer, the management computer calculates the MTBF after one year and the annual power consumption for each of the input target values, and, as a power interruption operation target in which the MTBF will become longest in one year, a target value regarding a power interruption time and a target value regarding a power interruption count are respectively selected among multiple target values in which the MTBF will become longest based on each of the calculation results, and displayed on a screen of an output unit.12-03-2009
20090300385Reducing Power Consumption While Synchronizing A Plurality Of Compute Nodes During Execution Of A Parallel Application - Methods, apparatus, and products are disclosed for reducing power consumption while synchronizing a plurality of compute nodes during execution of a parallel application that include: beginning, by each compute node, performance of a blocking operation specified by the parallel application, each compute node beginning the blocking operation asynchronously with respect to the other compute nodes; reducing, for each compute node, power to one or more hardware components of that compute node in response to that compute node beginning the performance of the blocking operation; and restoring, for each compute node, the power to the hardware components having power reduced in response to all of the compute nodes beginning the performance of the blocking operation.12-03-2009
20090300384Reducing Power Consumption While Performing Collective Operations On A Plurality Of Compute Nodes - Methods, apparatus, and products are disclosed for reducing power consumption while performing collective operations on a plurality of compute nodes that include: receiving, by each compute node, instructions to perform a type of collective operation; selecting, by each compute node from a plurality of collective operations for the collective operation type, a particular collective operation in dependence upon power consumption characteristics for each of the plurality of collective operations; and executing, by each compute node, the selected collective operation.12-03-2009
20090254769Power Profiling Application for Managing Power Allocation in an Information Handling System - A method, system, and software instructions for allocating power in a information handling system are operable to respond to a power profiling request by transitioning a processing resource to a first power consumption state and obtaining and storing a first power consumption value. The first power consumption value is then retrieved and used to allocate power to the first processing resource in response to a power on request. The first power consumption state may be a state in which power consumption approximates a maximum power consumption. The processing resource may be further transitioned to a second power consumption state and a second power consumption value obtained. The second power consumption state may be a reduced performance state. Thereafter, responsive to determining that the system lacks sufficient power budget to fulfill a pending request for power, the processing resource is throttled and power is allocated using the second power consumption value.10-08-2009
20110264934METHOD AND APPARATUS FOR MEMORY POWER MANAGEMENT - A method for power management is disclosed. The method may include monitoring requests for access to a memory of a memory subsystem by one or more processor cores; and monitoring requests for access to the memory conveyed by an input/output (I/O) unit. The method may further include determining if at least a first amount of time has elapsed since any one of the processor cores has asserted a memory access request and determining if at least a second amount of time has elapsed since the I/O unit has conveyed a memory access request. A first signal may be asserted if the first and second amounts of time have elapsed. A memory subsystem may be transitioned from operating in a full power state to a first low power state responsive to assertion of the first signal.10-27-2011
20110191613COMMUNICATION APPARATUS AND METHOD OF CONTROLLING COMMUNICATION APPARATUS - A communication apparatus which is connected to an information processing apparatus so as to operate dependent on the information processing apparatus and connects the information processing apparatus and an external apparatus, includes a judgment unit which judges instruction information transmitted from the external apparatus, a storage unit which stores the instruction information, a transmission unit which detects whether the information processing apparatus is in a normal state in which power is consumed normally or a power-saving state in which power consumption is reduced, and transmits the instruction information stored by the storage unit to the information processing apparatus when the information processing apparatus is in the normal state, and a switching unit which switches the communication apparatus to the normal state if the judgment unit judges that the instruction information is an instruction for directing the operation when the communication apparatus is in the power-saving state.08-04-2011
20100023788Reducing Power Consumption by Offloading Applications - Methods of reducing power consumption in a computing device are described in which file sharing applications which are running in the background are offloaded onto a lower power subsystem and the rest of the computing device can be put into a low power state. The lower power subsystem runs application stubs which autonomously execute a subset of the operations performed by a file sharing application which was previously running on the computing device. Before the rest of the computing device goes into the low power state, application state information is passed to the lower power subsystem for use by the application stubs. In an example, the application stub may continue to download files whilst the rest of the computing device is in standby or is shutdown and the application state information may include details of the files that are to be downloaded.01-28-2010
20100023787CONTROLLING THE POWER UTILIZATION OF A COMPUTER SYSTEM BY ADJUSTING A COOLING FAN SPEED - Some embodiments of the present invention provide a system that controls a power utilization of a computer system by adjusting a cooling fan speed. During operation, a relationship between information related to the cooling fan speed and the power utilization is determined. Then, the cooling fan speed is adjusted based on the determined relationship to control the power utilization of the computer system.01-28-2010
20100017633MEMORY DEVICE, CONTROL DEVICE FOR MEMORY DEVICE, AND CONTROL METHOD FOR MEMORY DEVICE - According to one embodiment, a control device includes: a calculation module acquiring at least one of speed information, and calculating a process time taken to write data group when the acquired speed information is used, each of the speed information corresponding to different swing speed; a selection module selecting one of the speed information based on the acquired speed information and the process time thereof; and a control module controlling a memory medium driving module, controlling the writing module to write the data group when the memory medium driving module is in operation, storing the data group in the memory module when the memory medium driving module is not in operation, controlling the swing module on the basis of the selected speed information, and controlling the writing module to write the data group stored in the memory module.01-21-2010
20110154072DATA STORAGE SYSTEM WITH POWER MANAGEMENT AND METHOD OF OPERATION THEREOF - A method of operation of a data storage system includes: providing a standby power source; detecting activity on a communication channel with an upstream re-driver powered with the standby power source; generating a signal-detect output from the upstream re-driver based on the activity; determining a link status with a power control unit based on the signal-detect output, the power control unit powered with the standby power source; and generating a power output from a power supply unit based on the link status, the power supply unit controlled by the power control unit.06-23-2011
20110307720COMPUTER SYSTEM AND POWER MANAGEMENT METHOD THEREOF - A computer system and a power-management method thereof are provided. The computer system has an image-reading mode, a first power-management mode and a second power-management mode, and the computer system operating in the second power-management mode consumes less power than it consumes in the first power-management mode. The computer system comprises a first portion comprising a graphics processing unit, a memory space and a display; and a second portion comprising a storage storing an image data. When the computer system operates in the image-reading mode, the image data has been transferred to the memory space from the storage, the second portion enters to the second power-management mode from the first power-management mode, and the first portion keeps in the first power-management mode, so that the graphics processing unit can display an image by the display according to the image data stored in the memory space.12-15-2011
20090172436ENERGY SAVING METHOD AND ELECTRONIC DEVICE USING THE SAME - An electronic device for selectively reproducing information. The electronic device includes a display, a power supply for supplying power, a switch, and a processor. The switch is connected to the display and the power supply. The processor is connected to the switch. When the processor identifies that the selected information is audio type, the processor turns off the switch to disconnect an electrical connection between the power supply and the display. A power saving method for reducing the energy consumption of the electronic device is also provided.07-02-2009
20090172435METHOD OF MINIMIZING ELECTRIC POWER CONSUMPTION IN NON-BEACON NETWORK - Disclosed herein is a method of minimizing electric power consumption in a non-beacon network including a parent node which maintains an active state only for a specific period in each predetermined cycle, and a child node which attempts to communicate for periods only when data is generated. When data that must be transmitted to the child node exists, the child node notifies the parent node that there is data to be transmitted. The child node periodically transmits the same message to the parent node until the parent node maintains an initial active state. If the parent node is switched into an active state and receives the data transmission notification message, the parent node commands the child node to transmit data. The child node transmits the data to the parent node. Thereafter, the parent node notifies the child node that the reception of data is normally performed.07-02-2009
20090172434Latency based platform coordination - In some embodiments, an electronic apparatus comprises at least one processor, a plurality of components, and a policy engine comprising logic to receive latency data from one or more components in the electronic device, compute a minimum latency tolerance value from the latency data, and determine a power management policy from the minimum latency tolerance value.07-02-2009
20090172432Power management in electronic systems - In one embodiment, an electronic apparatus comprises at least one processor and a computer readable medium coupled to the processor and comprising logic instructions encoded in the computer readable medium, wherein the instructions, when executed in a processing system, cause the processing system to perform operations comprising initializing a direct memory access profiler in an electronic system, wherein the direct memory access is coupled to a policy manager in the electronic system, measuring at least one memory consumption characteristic of the electronic system, communicating the at least one memory consumption characteristic to a policy manager of the electronic system, and using the at least one memory consumption characteristic to adjust a power state of the electronic system.07-02-2009
20090172431METHOD AND APPARATUS FOR REDUCING POWER CONSUMPTION FOR ISOCHRONOUS DATA TRANSFERS - A method and article for reducing power consumption for isochronous data transfers are described. The method may include receiving packets of data having multimedia information with empty spaces. The packets of data may be stored in a first buffer having a first buffer size allocated for a universal serial bus processing stack. The empty spaces may be removed from the packets of data and the packets of data having the empty spaces removed may be copied to a second buffer having a second buffer size allocated for a media information processing stack. Other embodiments are described and claimed.07-02-2009
20120124402DETERMINING A POWER SAVING MODE BASED ON A HARDWARE RESOURCE UTILIZATION TREND - Techniques are disclosed for managing the amount of power consumed by server components of a computer system, each server component having multiple power modes. The utilization of each server component is monitored. Based on the monitored utilization, a time period is determined in which to apply a selected power mode to the respective server component. The respective server component is configured to operate in the selected power mode for at least the determined time period.05-17-2012
20120072746FACILITATING POWER MANAGEMENT IN A MULTI-CORE PROCESSOR - The disclosed embodiments provide a system that facilitates power management in a multi-core processor. During operation, the system detects a change related to a number of active processor cores in the multi-core processor. (Within this system, a given processor core can reside in an active state, wherein the given processor core can draw an active power, or alternatively in a constrained state, wherein the given processor core can draw a constrained power, which is less than the active power.) In response to detecting the change, the system computes a new current limit I03-22-2012
20120072744SYSTEMS AND METHODS TO IMPROVE POWER EFFICIENCY IN HYBRID STORAGE CLUSTERS - Systems and methods for reducing power consumption and power leakage in hybrid storage clusters is provided. More specifically, the systems and methods for reducing power consumption select a particular cache (memory) technology in hybrid storage clusters based on performance requirements and/or other parameters associated with an application (file or process). The method can be implemented in a computer infrastructure having computer executable code tangibly embodied on a computer readable storage medium having programming instructions. The program instructions are operable to monitor access patterns of one or more applications in one or more memory technologies in a computing system. The program instructions are also operable to select a memory technology to store the one or more applications based on the access patterns of one or more applications.03-22-2012
20130185573IMAGE FORMING APPARATUS AND CONTROL METHOD FOR EXECUTING A PROXY IN RESPONSE TO A HEARTBEAT - An image forming apparatus automatically recognizes and responds to an encrypted heartbeat packet only with a small amount of calculation, without causing a sub control unit to execute an SSL/TLS decryption process. As a result, the image forming apparatus can execute a proxy response with less power consumption.07-18-2013
20110320837POWER SUPPLY CIRCUIT, POWER SUPPLY METHOD, AND SIGNAL PROCESSING APPARATUS - A power supply circuit connected to an information processor including first and second controllers via a first cable having a first signal line and a first power line and a second cable having a second signal line and a second power line includes a controller that operates using a current of a first level supplied via the second power line and that performs setup by communicating with the second controller via the second signal line and a switch circuit that supplies, to an external device controller, currents supplied via the first and second power lines. When setup of the external device controller is completed through communication between the external device controller and the first controller via the first signal line, the switch circuit supplies, to the external device controller, a current of a second level higher than the first level supplied via each of the first and second power lines.12-29-2011
20110320835SYSTEM AND METHOD FOR DYNAMICALLY MANAGING POWER IN AN ELECTRONIC DEVICE - A power controller receives a status signal, generates a control signal from the status signal, and reduces an output voltage of a voltage regulator based on the power control signal. The status signal is indicative of an operating tolerance or condition of a circuit or function of an electronic device during a low power state, and the output voltage of the voltage regulator is reduced to a value that corresponds to the operating tolerance or condition of the circuit or function of the electronic device.12-29-2011
20120047379BATTERY POWER MANAGEMENT FOR A MOBILE DEVICE - Techniques for managing battery power of a mobile device are described. In an aspect, battery power may be reserved for an application prior to execution of the application on the mobile device. The reservation may ensure that the application has sufficient battery power for execution. In another aspect, battery power may be allocated to applications based on their priorities. The applications may be ordered based on their priorities, and the available battery power for the mobile device may be allocated to one application at a time, starting with the highest priority application. In yet another aspect, battery power may be allocated to applications based on a battery discharge curve for the mobile device. An operating point on the battery discharge curve may be selected based on at least one objective. The available battery power may be determined based on the selected operating point and allocated to the applications.02-23-2012
20120047380METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR PRESENTATION OF INFORMATION IN A LOW POWER MODE - Provided herein is a method, apparatus, and computer program product for presenting information on a display to a user when the display is operating in a low, or reduced power mode. In particular, the method includes providing for operation in a user interface state that is configured to present a first amount of information with at least a portion of the first amount of information being presented on a display while operating in a first power mode, selecting information from the first amount of information to create a second amount of information that is a subset of the first amount of information, where the second amount of information is selected from the first amount of information based upon relevancy parameters, and providing for display of a second amount of information from the user interface state while operating in a second power mode.02-23-2012
20120047378METHOD AND SYSTEM FOR LOW-POWERED DATA TRANSMISSION - One embodiment of the present invention is a sensor comprising one or more sensing devices, data-transmission components that transmit sensor data to a receiving component, and a processing component. The processing component executes routines to record sensing-device output as data for transmission to the receiving entity and to control the data-transmission components to transmit the data to the receiving entity. The processing component executes one or more compressing routines to compress data prior to transmission, when data compression is estimated to result in a lower power cost than transmitting uncompressed data, and controlling the data-transmission components to transmit data without compressing the data when data compression is estimated to result in a higher power cost than transmitting uncompressed data.02-23-2012
20120210151COMMUNICATION SYSTEMS - A communication system is provided and includes a current control circuit, a processing module, and a detection circuit. The current control circuit has an output node. The current control circuit is capable of drawing input current to the output node. The processing module is capable of operating according to a current accumulated at the output node and an output voltage at the output node. The detection circuit is capable of detecting the output voltage and controlling the processing module according to a detection result of the detection circuit. When the detection circuit detects that the output voltage is lower than a threshold, the detection circuit is capable of controlling the processing module to decrease an output power of a power amplifier or to decrease an operating frequency of a processor.08-16-2012
20120210149TECHNIQUES FOR PERFORMING STORAGE POWER MANAGEMENT - A technique for performing storage power management on storage subsystems includes measuring, using a power measurement device, power consumption of a storage subsystem. A first average power and a second average power for the storage subsystem are calculated based on the measured power consumption. In this case, the first average power is calculated over a shorter time period than the second average power. One or more first actuators are incremented in response to the first average power of the storage subsystem being greater than a first power level to reduce the first average power of the storage subsystem below the first power level within a first time period. One or more second actuators are incremented in response to the second average power of the storage subsystem being greater than a second power level and less than the first power level to reduce the second average power of the storage subsystem below the second power level within a second time period that is greater than the first time period. Finally, one or more of the first actuators and the second actuators are decremented in response to the second average power of the storage subsystem being more than an offset below the second power level to increase the power consumption of the storage subsystem.08-16-2012
20120005502Device Charging System - Optimized bus powered peripheral battery charging includes a circuit to initiate a change in an advanced configuration and power interface (ACPI) state in a controller allowing charging of a peripheral device battery, the circuit including a signal converter coupled between an input port and the controller to sense when a the peripheral device battery is coupled to an input port and to restrict the controller from changing ACPI state multiple times for a given peripheral device battery coupling; and a ground loop detector coupled in parallel to the signal converter between the input port and the controller to allow the controller to know that the peripheral device battery has maintained being coupled to the input port.01-05-2012
20120005503DYNAMIC PERFORMANCE MANAGEMENT - A dynamic power management technique to optimize the performance to a pre-defined power or temperature limit. A computing system may comprise a performance management unit that may reconfigure the performance parameters, dynamically, based on the pre-defined power or temperature limit. Such an approach may provide performance enhancements as the power consumed by various components of the computing system may be reduced.01-05-2012
20120005501System and Method for Maintaining Connectivity to Remote Application Servers - A system and method for maintaining connectivity between a host system running an Always-On-Always-Connected (AOAC) application and an associated remote application server. The system further includes circuitry configured to establish a communication link between the host system and the remote application server. The circuitry is configured periodically transmit keep-alive messages to the remote application server after the host system transitions to and remains in a low-power state. The keep-alive messages are configured to maintain connectivity and presence of the AOAC application with the remote application server while the host system is in the low-power state.01-05-2012
20120005499Power Control System and Method - A power block is provided having a plurality of individually, remotely controlled power ports switchable between an on state and an off state which users may connect electronic devices. The power block determines the desired power state for the particular power port that a particular electronic device is connected based on infrared codes used to power on or off the particular electronic device and switches the port between the on or off state accordingly.01-05-2012
20130013943ON-DEMAND STORAGE SYSTEM ENERGY SAVINGS - Embodiments of the invention relate to dynamic power management of storage volumes and disk arrays in a storage subsystem to mitigate loss of performance resulting from the power management. The volumes and arrays are prioritized, and in real-time power is selectively reduced in response to both the prioritization and an energy savings goal. A feedback loop is provided to dynamically measure associated power gain based upon a lowering of power consumption, and device selection may be adjusted based upon received feedback.01-10-2013
20110167284CHARGE SUSPEND FEATURE FOR A MOBILE DEVICE - An electronic device is described comprising connecting means configured to establish a connection to another device, and configured to receive electrical power from the connection and configured to receive information from the other device via the connection and comprising determining means configured to determine a set of limitations, wherein for at least one electronic unit configured to receive electrical power, the set of limitations comprises a limitation of electrical power to be distributed to the at least electronic unit and wherein the determining means is further configured to determine the set of limitations based on the information received from the other device, wherein the received information comprises a request for a reduced power consumption of the electronic device.07-07-2011
20110167285INFORMATION HANDLING SYSTEM INCLUDING WIRELESS SCANNING FEATURE - An information handling system (IHS) is provided which includes a system processor and a wireless section coupled to the system processor. While the system processor remains in a reduced power state, the wireless section is operable to be powered up to detect the presence of a wireless network external to the IHS and determine if that detected wireless network matches a network included in profile information stored in a memory that is accessible by the wireless section. An indicator is coupled to the wireless section and is operable to provide an indication that a wireless network is present.07-07-2011
20120117401MAINTAINING CONNECTIVITY DURING LOW POWER OPERATION - Generally this disclosure describes methods and systems for conserving energy in a client platform by maintaining connectivity between the client platform and a remote resource when the client is in a low-power state. An example method may include receiving notification that the client platform is transitioning to the low-power state, receiving at least one payload from the client platform, the at least one payload being configured to maintain connectivity with a remote resource while the client platform is in the low-power state, transmitting a packet including the at least one payload and receiving a packet including an acknowledgement.05-10-2012
20120023350METHOD FOR ACTIVE POWER MANAGEMENT IN A SERIAL ATA INTERFACE - A method for active power management in a Serial ATA interface for data transfer between a host and a device, the method starts with the determining of an optimal data transfer rate for transferring data between the host and the device. Then switching the Serial ATA interface into an active power saving mode based on the optimal data transfer rate is performed.01-26-2012
20120060042Maintaining power through a data transmission cable - A powered device receives electrical power through a data transmission cable from a power supplying device that monitors a load on the data transmission cable and turns off the power to the load if the load is outside of a range. The powered device draws a first current at least part of a time during which the powered device is in a low power mode. The powered device is operable during the low power mode to draw a second current. And the powered device increases and decreases the second current to maintain a sum of the first current and the second current, or a level of a current into the powered device, at least at a minimum level for at least a portion of a cycle time.03-08-2012
20120060043APPARATUS AND METHOD FOR CONTROLLING POWER IN A WIRELESS COMMUNICATION SYSTEM - An apparatus and method for controlling power in a wireless communication system are provided. The method includes determining one or more available communication modes based on at least one of suppliable power information and data bit rate information, setting one of the one or more determined available communication modes as a communication mode during negotiation of a communication mode with a base station, and transmitting and receiving data by applying the set communication mode.03-08-2012
20120159210STORAGE APPARATUS AND ITS CONTROL METHOD - The charge capacity of a battery for supplying electric power to a volatile memory and a non-volatile memory is increased without increasing the power source capacity.06-21-2012
20120159208SOFTWARE CONTROLLED POWER LIMITING IN USB TO SATA BRIDGE - A Universal Serial Bus (USB) to Serial ATA (SATA) bridge device and method for operating same in a USB connected mass storage subsystem supports software management of power consumption. The USB to SATA bridge estimates power consumption based on known power consumption characteristics of SATA disk drives when performing commands involved in accessing SATA drive, or takes measurements of power consumption during execution of commands to determine when responses to a USB host device are to be delayed. By selectively delaying responses to the USB host device issuing the commands, the USB to SATA bridge manages the rate at which the host issues commands to the USB mass storage subsystem and is thereby able to automatically limit power consumption of the USB mass storage subsystem to that that available over the USB link.06-21-2012
20120159213Node Management of an Electronic Circuit Component - A component of an electronic circuit, the component comprising: a node (REG_ENB; DO) selectively configurable as an output node for providing an output signal to an external component or as an input node for providing an input signal to an internal component; a capacitor (C) selectively coupled to the node (REG_ENB; DO) to influence the time for the node (REG_ENB; DO) to transition between a low state and a high state; and a timer for measuring the time for the node to transition between a low state and a high state to provide a first information input signal, the state of the first information signal depending on the time for the node to transition between the low state and the high state and being indicative of a first information. A method of node management is also described.06-21-2012
20120159211APPARATUS AND METHOD FOR MANAGING POWER EQUIPMENT IN ADVANCED METERING INFRASTRUCTURE NETWORK - Provided is an apparatus and method for managing a power equipment in an advanced metering infrastructure (AMI) network included in a smart grid network. According to an aspect of the present invention, an apparatus and method for managing a power equipment in an AMI network may provide a load control environment enabling a power equipment to declare an opt-out when another power equipment declares an opt-out by providing a list of power equipments included in a load control group in response to a power equipment declaring an opt-out of the load control group so as to process an opt-out of a power equipment selected from the list.06-21-2012
20120159214POWER CONTROLLER FOR SUPPLYING POWER VOLTAGE TO FUNCTIONAL BLOCK - A power controller, includes a digital control circuit that outputs a result of comparing a first voltage being input and a voltage reference, and a processor control circuit that stops an operation of the processor based on the result of comparing.06-21-2012
20120072748RADIO DEVICE - A method including configuring a processor to determine whether a radio device is communicating with an additional device, configuring the radio device to enter into a power stale in response to whether the radio device is communicating with the additional device, and modifying an amount of power supplied to the radio device in response to the power slate of the radio device.03-22-2012
20120072747IMAGE PROCESSING APPARATUS CAPABLE OF SHIFTING TO POWER SAVING MODE, CONTROL METHOD FOR THE IMAGE PROCESSING APPARATUS, AND PROGRAM - An image processing apparatus capable of shifting to a power saving mode. The image processing apparatus includes a storing unit configured to store a document in a storage device, a notification unit configured to periodically notify an apparatus of a predetermined destination of information about a document that has been newly stored by the storing unit into the storage device, and a control unit configured to restrict shifting to a power saving mode in which the notification unit cannot make the notification after storage of a document by the storing unit has been completed and until the notification unit notifies at least information about the document.03-22-2012
20120072745SERVER POWER MANAGEMENT WITH AUTOMATICALLY-EXPIRING SERVER POWER ALLOCATIONS - One embodiment provides a power management method for servers in a data center. A group of servers is selected, and the total power allocated to a group of servers is limited to within a group power budget. A separate server power allocation is individually requested for each of a plurality of the servers. Within the constraints of the group power budget, the requested server power allocations are selectively granted for a specified magnitude and duration. The granted server power allocations are also selectively renewed, either automatically or upon request of the servers. Each server that has not received a renewed server power allocation from a group power management entity upon the expiration of the specified duration automatically reduces its own power consumption, such as by the server powering itself off.03-22-2012
20110083024Methods and Systems for Power Supply Management - System and methods for controlling power delivery to system components are disclosed. A controller is communicatively coupled to a point-of-load converter through a first communication path and a shared memory is communicatively coupled to the point-of-load converter through a second communication path. A third communication path communicatively couples the controller and the shared memory. Control data is communicated from the controller to the point-of-load converter through the first communication path and measurement data is written from the point-of-load converter to the shared memory through the second communication path. The controller is operable to read the measurement data from the shared memory through the third communication path.04-07-2011
20120159212INFORMATION PROCESSING APPARATUS CAPABLE OF APPROPRIATELY EXECUTING SHUTDOWN PROCESSING, METHOD OF CONTROLLING THE INFORMATION PROCESSING APPARATUS, AND STORAGE MEDIUM - An information processing apparatus capable of recovering the apparatus from a state in which software operation is abnormal to a state in which the same is normal. The information processing apparatus is provided with a CPU for receiving an instruction for turning off power of the information processing apparatus. Upon receipt of the instruction, the CPU determines whether or not it is necessary to turn off the power of the information processing apparatus. When it is necessary to turn off the power of the information processing apparatus, the CPU controls the information processing apparatus such that the power thereof is turned off, whereas when it is unnecessary to turn off the power of the information processing apparatus, the CPU controls the information processing apparatus such that the power thereof is not turned off.06-21-2012
20120159209Idle Time Service - In embodiments of an idle time service, it can be determined that processing on a device is in an idle state. An execution duration of applications that are scheduled to be executed by a processor of the device can then be extended to reduce power consumption by the device. In other embodiments, it can be determined that an application configured to execute on a device is a background application. The execution duration of the background application can then be extended to reduce power consumption by the device.06-21-2012
20130013944MULTIPROCESSOR SYSTEM AND CONTROL METHOD THEREOF, AND COMPUTER-READABLE MEDIUM - A multiprocessor system configured to share processes by a main system having a first processor and a subsystem having a second processor, comprises a first shared memory configured to receive accesses from the main system and the subsystem, a second memory configured to receive access from the subsystem at a power saving mode, a stop unit configured to stop accesses from the main system and the subsystem to the first shared memory when the subsystem enters the power saving mode, and a switching unit configured to switch an access destination of the subsystem from the first shared memory to the second memory when the subsystem enters the power saving mode.01-10-2013
20110107127NETWORK RELAY APPARATUS - A network relay apparatus which conducts data transfer by using a plurality of network LSIs includes a transfer engine unit having at least two network LSIs and a central control unit which controls the operation state of the network relay apparatus. The transfer engine unit includes the network LSIs capable of changing over at least one of a clock and an operation which differ every function block, a load judgment unit for judging a load laid upon each of function blocks in the network LSI, and a frequency voltage control unit for individually changing over at least one of the clock and operation voltage supplied to each function block on the basis of the load judged by the load judgment unit.05-05-2011
20110107126System and method for minimizing power consumption for a workload in a data center - A system and method are disclosed for minimizing power consumption for a workload in a data center having two or more computers. The system and method execute a server-centric management tool that provides a workload-power cost function to predict a cost of running a workload on a server. The workload-power cost function is executed by the processor and includes as an input a unique designation of the server. The workload-power cost function includes as an output the cost of running the workload on the server. The system and method provide the output of the workload-power cost function to a workload placement tool to efficiently place the workload.05-05-2011
20100095141Apparatus and method for a power control in a system using an embedded CPU - A portable communication apparatus is configured to perform a method for a power control of a Central Processing Unit (CPU) in a portable communication apparatus. The portable communication apparatus for a power control of the CPU includes a CPU for reporting an operation status of the CPU. The CPU is configured to change a power control level according to a control of an overhead determiner by using a pin and the overhead determiner for determining an overhead of the CPU by using the pin and for controlling the power control level of the CPU according to the overhead of the CPU.04-15-2010
20100095140System and method for power reduction by sequestering at least one device or partition in a platform from operating system access - In some embodiments, the invention involves a system and method relating to managing power utilization in partitioned systems. In at least one embodiment, the present invention is intended to control the sleeping/wakefulness of devices, as necessary, to minimize power utilization of devices whose accesses are routed away. Inter-partition communication is used to utilize devices in a sequestered partition while devices in the OS partition are put into a sleep state to save power. Other embodiments are described and claimed.04-15-2010
20110099398INTEGRATED CIRCUIT AND ELECTRONIC APPARATUS - An integrated circuit includes a main processing unit, a peripheral connection port for connecting a peripheral device, and an auxiliary processing unit configured to control the peripheral connection port and to perform controlling of interruption and transmission of data from the peripheral device connected to the peripheral connection port instead of the main processing unit. The main processing section and the peripheral connection portion are connected to each other with an inner bus. The main processing unit uses a memory resource provided in the auxiliary processing unit as a part of an inner memory space of the main processing unit.04-28-2011
20110099397OPERATING POINT MANAGEMENT IN MULTI-CORE ARCHITECTURES - For one disclosed embodiment, a processor comprises a plurality of processor cores to operate at variable performance levels. One of the plurality of processor cores may operate at a performance level different than a performance level at which another one of the plurality of processor cores may operate. Logic of the processor is to monitor activity of one or more of the plurality of processor cores. Logic of the processor is to constrain power of one or more of the plurality of processor cores based at least in part on the monitored activity. Other embodiments are also disclosed.04-28-2011
20090132838System and Method for Power Management of A Storage Enclosure - A system and method for power management of storage enclosures are disclosed. A system may include a storage enclosure and a host communicatively coupled to the storage enclosure. The storage enclosure may include at least one storage resource and a management module. The host may be configured to: (a) communicate data to the at least one storage resource via a particular transmission protocol; (b) communicate a power down command via the particular transmission protocol to the storage enclosure, the power down command operable to transition the storage enclosure from a high-power state to a low-power state; and (c) communicate a power up command via the particular transmission protocol to the storage enclosure, the power up command operable to transition the storage enclosure from the low-power state to the high-power state.05-21-2009
20090132841Processor Accessing A Scratch Pad On-Demand To Reduce Power Consumption - The present invention provides processing systems, apparatuses, and methods that access a scratch pad on-demand to reduce power consumption. In an embodiment, an instruction fetch unit initiates an instruction fetch. When a scratch pad is enabled, an instruction is retrieved from the scratch pad in parallel with a translation of a virtual address to a physical address. If the physical address is associated with the scratch pad, the retrieved instruction is provided to an execution unit. Otherwise, the scratch pad is disabled to reduce power consumption and the instruction fetch is re-initiated. When the scratch pad is disabled, an instruction is retrieved from another instruction source, such as an instruction cache, in parallel with the translation of the virtual address to the physical address. If the physical address is associated with the scratch pad, the scratch pad is enabled and the instruction fetch is re-initiated.05-21-2009
20090132840CROSS-LAYER POWER MANAGEMENT IN A MULTI-LAYER SYSTEM - A method for cross-layer power management in a multi-layer system includes determining whether there is a service level violation for an application running on a hardware platform. Power consumption of the hardware platform is controlled in response to the service level violation.05-21-2009
20090132839Method and device to handle denial of service attacks on wake events - A method and device may selectively resume a computing device from a low power state according to a security policy. The security policy may be embedded in the hardware of the computing device and may be enforced even when the device is in a low power state. Such a policy may provide protection from hacker and virus based denial of service attacks using a flood of packets formatted to provide a wake event request. Other embodiments are described and claimed.05-21-2009
20090132837System and Method for Dynamically Selecting Clock Frequency - A system and method for dynamically changing the clock frequency of a system clock is disclosed. The invention includes selecting a peripheral interface clock signal from a plurality of currently active peripheral interface clock signals, each operating at a particular frequency. The selected peripheral interface clock signal operates at the highest frequency of the plurality of currently active peripheral interfaces clock signals. Once selected, the frequency of the system clock is set equal to the frequency of the selected peripheral interface clock signal.05-21-2009
20120131365Delayed Shut Down of Computer - A computer-implemented computer shut-down method includes identifying that a computing device has been moved from an open configuration in which input and output mechanisms on the computing device are accessible to a user, to a closed configuration in which at least some of the input and output mechanisms are inaccessible to a user; starting a shut-down timer in response to identifying that the computing device has been moved from the open configuration to the closed configuration; waiting a predefined time period, as established by the shut-down timer, and determining from the shut-down timer that the computing device can be transitioned from an active state into a sleep state in which power consuming components of the computing device are powered down; and transitioning the computing device from the active state to the sleep state upon determining that the computing device can be transitioned.05-24-2012
20120131366LOAD BALANCING FOR MULTI-THREADED APPLICATIONS VIA ASYMMETRIC POWER THROTTLING - A first execution time of a first thread executing on a first processing unit of a multiprocessor is determined. A second execution time of a second thread executing on a second processing unit of the multiprocessor is determined, the first and second threads executing in parallel. Power is set to the first and second processing units to effectuate the first and second threads to finish executing at approximately the same time in future executions of the first and second threads. Other embodiments are also described and claimed.05-24-2012
20120131364Method For Managing the Charge Level of a Battery in a Mobile Terminal, Corresponding Management System and Computer Program - The present disclosure relates to a method for managing the charge level of a battery of a mobile terminal connected to a network of transmission of information. The method comprises measuring the charge level of the battery. If the charge level of the battery is lower than a predefined threshold of charge level, the method controls the operation of the terminal to reduce its power consumption during an operation of transmission of information from or toward the terminal.05-24-2012
20120131363HEAT DISSIPATING DEVICE AND METHOD THEREOF - A heat dissipating device and the method thereof are provided. The heat dissipating device includes at least one fan, a temperature detecting unit, a fan control unit, and a power consumption control unit. The temperature detecting unit detects a temperature inside the host. The fan control unit controls the rotating speed of the fan. The power consumption control unit calculates the total power consumption of the host, and outputs a control signal to the fan control unit according to the temperature inside the host and the total power consumption of the host, so as to adjust the rotating speed of the fan.05-24-2012
20120131362BATTERY POWER CONTROL DEVICE, PORTABLE DEVICE AND METHOD FOR CONTROLLING PORTABLE DEVICE - Disclosed are a battery power control device, a portable device and a method of controlling the portable device. The disclosed portable device includes a workload calculator which calculates a workload necessary to provide the specific service to the user according to at least one of time request information related to a desired time during which the specific service is provided to the user and QoS (Quality of Service) request information related to a quality of the specific service, the necessary workload being smaller than a default workload that is preset for providing the specific service; a task performer which performs a task for providing the specific service according to the necessary workload during a time that is reduced to be shorter than a task performance time according to the default workload and stop the task performance during the reduced time; and a battery unit which supplies a power for performing the task to the task performer.05-24-2012
20120166836SYSTEM FOR CONSERVING BATTERY LIFE IN A BATTERY OPERATED DEVICE - A battery operated device includes a receiver for receiving a transmission that includes a postamble. A sensor, in a tire, measures a parameter of the tire and outputs data indicative of the parameter. A microprocessor is coupled to the receiver and the sensor. The microprocessor is configured to periodically partially awaken to determine whether the transmission is likely a forward link packet (FLP) by examining the postamble, and to transmit the data in a reverse link packet (RLP) in response to confirming that the transmission is a FLP.06-28-2012
20120166835ENERGY LOAD MANAGEMENT METHOD AND SYSTEM - A modification method and system. The method includes detecting and monitoring by a computing system, a frequency signal associated with an input voltage signal used for powering a plurality of power consumption devices at a specified location. The computing system compares the frequency signal to a predetermined frequency value. The computing system determines that the frequency signal comprises a first value that is not equal to the predetermined frequency value. The computing system calculates a difference value between the first value and the predetermined frequency value. The computing system compares the difference value to a second value. The computing system enables a load adjustment modification process associated with the plurality of power consumption devices. The computing system generates and stores a report associated with the load adjustment modification process.06-28-2012
20120166834COMPUTING LOAD MANAGEMENT METHOD AND SYSTEM - A load management method and system. The method includes detecting and monitoring by a computing system, a frequency signal associated with an input voltage signal used for powering computing apparatuses at a specified location. The computing system compares the frequency signal to a predetermined frequency value. The computing system determines that the frequency signal comprises a first value that is not equal to the predetermined frequency value. The computing system calculates a difference value between the first value and the predetermined frequency value. The computing system compares the difference value to a second value and analyzes a power demand profile. The computing system enables a load adjustment modification process associated with the plurality of power consumption devices based on the difference value and the power demand profile. The computing system generates and stores a report associated with the load adjustment modification process.06-28-2012
20120166833INFORMATION PROCESSING DEVICE, CONTROL METHOD AND CONTROL PROGRAM - An information processing device (06-28-2012
20120166832DISTRIBUTED MANAGEMENT OF A SHARED POWER SOURCE TO A MULTI-CORE MICROPROCESSOR - Microprocessors are provided with decentralized logic and associated methods for indicating power related operating states, such as desired voltages and frequency ratios, to shared microprocessor power resources such as a voltage regulator module (VRM) and phase locked loops (PLLs). Each core is configured to generate a value to indicate a desired operating state of the core. Each core is also configured to receive a corresponding value from each other core sharing the applicable resource, and to calculate a composite value compatible with the minimal needs of each core sharing the applicable resource. Each core is further configured to conditionally drive the composite value off core to the applicable resource based on whether the core is designated as a master core for purposes of controlling or coordinating the applicable resource. The composite value is supplied to the applicable shared resource without using any active logic outside the plurality of cores.06-28-2012
20120166831SYSTEM FOR CONTROLLING POWER CONSUMPTION OF SEMICONDUCTOR INTEGRATED CIRCUIT - According to one embodiment, a semiconductor integrated circuit has peripheral devices and a clock supply control circuit which controls supply of clock signals to the devices. An operating system for controlling execution of tasks includes a task information registration unit, a dispatcher, a semaphore managing unit, and a power consumption managing unit. The task information registration unit registers peripheral device use information as task information. The dispatcher controls start of any one of the tasks when an execution request of the task is received and to control switching task execution. The semaphore managing unit to manage state of acquisition and store semaphores. The power consumption managing unit refers to the peripheral device use information and the semaphores, and issues a request to the clock supply control circuit so as to supply or stop the clock signal, in accordance with execution states of the tasks and acquisition state of the semaphores.06-28-2012
20120166830OFFLINE SETUP RECORDING DEVICE AND METHOD AND ELECTRONIC APPARATUS USING THE SAME - An offline setup recording device used in an electronic apparatus is illustrated. When the electronic apparatus is power on, the total energy storage unit is charged by a power supply through the unidirectional conduction unit, such that a total voltage is stored therein. When the electronic apparatus is power off, a user operates the automatically recovering switch to be conducted, such that the state energy storage unit is charged by the total energy storage through the automatically recovering switch, and a storage voltage signal is stored therein. When the electronic apparatus is power on again, the reading unit receives the power, reads out the storage voltage signal, and outputs a read voltage signal accordingly.06-28-2012
20120166827Method and Apparatus for Reducing Dynamic Power within System-on-a-Chip Routing Resources - A method for saving power in transmission of data across buses. By knowing the power characteristics of a bus and characteristics of data to be transmitted across the bus, the data can be encoded in such a fashion as to conserve system power over transmitting the same data in an unencoded format across the bus. The encoding method may be selected before transmission of the data across the bus, and may change depending on the data to be transmitted across the bus.06-28-2012
20100229010COMPUTER SYSTEM, METHOD FOR CONTROLLING THE SAME, AND PROGRAM - A computer system 09-09-2010
20120216057Selective Power Reduction of Memory Hardware - Managing delivery of power to one or more hardware memory devices in a computer system. The computer system is configured with a processor and at least two hardware memory devices. A temperature monitor tool is employed to monitor the hardware memory devices. Management of an addressable subset of the hardware memory devices is employed in response to the monitored temperature reading.08-23-2012
20120216056Power Load Shedding for Inline Power Applications - In one embodiment, power from multiple inline power sources is collected. Power is supplied to powered network circuits from the collected power and any excess power from the collected power is supplied to downlink inline equipment. A worst-case power source loss scenario is determined based on power source and load information. Removal of an inline power source is detected and load power is reduced when the removed power source reduces the power required to operate the powered network circuits.08-23-2012
20120216055System and Method for Improving Power Supply Efficiency - A method may include: calculating approximate power requirements of components, the components supplied with electrical energy from a plurality of power supplies, each of one or more of the plurality of power supplies capable of being enabled and disabled from supplying electrical energy to the components; determining a set of possible configurations of the plurality of power supplies such that for each possible configuration, enabled power supplies of the possible configuration have adequate aggregate capacity to deliver the approximate power requirements and switching to the possible configuration from a then-present configuration would require no more than one of then-disabled power supplies be enabled and no more than one of then-enabled power supplies be disabled; and determining which of the set of possible configurations has the highest expected power efficiency.08-23-2012
20100205467Low-power system-on-chip - A system-on-chip comprises a power-off domain block; and a power-on domain block that analyzes externally transferred data during a power-down state of the power-off domain block, wherein the power-on domain block executes an operation of the power-off domain block or a wake-up operation, based on an analyzed result of the externally transferred data.08-12-2010
20120137150DATA PROCESSING APPARATUS, METHOD FOR CONTROLLING DATA PROCESSING APPARATUS, AND STORAGE MEDIUM STORING PROGRAM - An apparatus operates in at least a first mode and a second mode consuming less power than the first mode, and stores information indicating specific data to be responded without shifting from the second mode to the first mode, the data being received from a network during an operation in the second mode. Data received from the network during an operation in the first mode is determined whether to be the specific data indicated by the information stored by a storage unit. When the data is the specific data, a shift from the first mode to the second mode after responding to the received data is faster than when the data is not the specific data.05-31-2012
20110185206MULTIPLE VOLTAGE GENERATOR AND VOLTAGE REGULATION METHODOLOGY FOR POWER DENSE INTEGRATED POWER SYSTEMS - An integrated power system suitable for simultaneously powering marine propulsion and service loads. The system includes: (a) at least one generator configured with at least first and second armature windings configured to output respective first and second alternating current power signals of different voltages, the at least two armature windings positioned within the same stator slots so that they magnetically couple; (b) at least first and second rectifier circuits coupled to said generator to convert said first and second alternating current power signals into first and second direct current power signals; (c) a first load to which said first direct current power signal is coupled and a second load to which said second direct current power signal is coupled.07-28-2011
20110185205POWER-SAVING DISPLAY INFORMATION CONVERTING SYSTEM AND METHOD - Display information to be displayed by a display device having a power consumption model is converted according to a power-saving conversion model and the power consumption model, such that the power consumption of the display device for displaying the converted display information is lower than that for displaying the original display information.07-28-2011
20110185204CONTROL OF ACCESSORY COMPONENTS BY PORTABLE COMPUTING DEVICE - A portable computing device (PCD) can control the operating state of a component within an accessory. For example, an accessory can have some components (e.g., a video processor) that are used for some operations but not for others. A PCD can determine whether a particular component will be used and can instruct the accessory to set the component to a desired state, e.g., powered up when in use and powered down when not in use. In some embodiments, the PCD can use status information provided by the accessory in determining a desired state for the accessory component. For example, in the case of a video converter accessory, if no display device or other video receiver is connected to the accessory, a video processor within the accessory can be powered down.07-28-2011
20110185203METHOD AND APPARATUS FOR POWER CONTROL - Embodiments of the present invention relate to limiting maximum power dissipation occurred in a processor. Therefore, when an application that requires excessive amounts of power is being executed, the execution of the application may be prevented to reduce dissipated or consumed power. Example embodiments may stall the issue or execution of instructions by the processor, allowing software or hardware to reduce the power of an application by imposing a decrease in the performance of the application.07-28-2011
20110185202Mobile Computing Device and Method for Maintaining Application Continuity - A method of maintaining application continuity (07-28-2011
20110185201STORAGE SYSTEM AND ITS POWER CONTROL METHOD - In the process of controlling a plurality of storage devices 07-28-2011
20100174931MANAGING ELECTRIC POWER CONSUMPTION BY CONFIGURING ELEMENTS OF A DISTRIBUTED COMPUTING SYSTEM - A method and system for managing electric power consumption by elements of a distributed computing system comprises: determining one or more system metrics that relate to electric power usage as consumed by elements of a configured distributed environment; determining a system value in response to the one or more system metrics, the value determined according to one or more value criteria; and, while in-progress applications are being run in the computing environment, evaluating one or more potential changes in the distributed computing environment and determining an alternate system value based on the changes; and, re-configuring elements of the distributed computing environment dynamically while the computing environment is operating, in accordance with a determined alternate system value. The re-configuring elements step is in accordance with a potential change operative to alter electric power consumption.07-08-2010
20100174930Mobile device having organic light emitting display and related display method for power saving - After receiving a web page containing several templates from a web server, a mobile device converts an original color in a selected template of the web page into a new color. Then the mobile device displays the color-converted web page on a display unit which may be formed of OLED. Colors of a background template and a text template can be converted into a low brightness color such as black and a high brightness color such as white, respectively. Therefore, when such a web page is displayed on a mobile device, power consumption is effectively reduced. In another embodiment, the web server may perform a color conversion before sending web pages to the mobile device.07-08-2010
20100174929Method and Systems for Power Consumption Management of a Pattern-Recognition Processor - Disclosed are methods and devices, among which is a device that includes a pattern-recognition processor. In some embodiments, the pattern-recognition processor includes a first block of feature cells coupled to a decoder via a first plurality of local input conductors, a first block-disabling circuit, and a plurality of global input conductors. The pattern-recognition processor further includes a second block of feature cells coupled to the decoder via a second plurality of local input conductors, a second block-disabling circuit, and the plurality of global input conductors.07-08-2010
20100174928Optimizer Mechanism to Increase Battery Length for Mobile Devices - An optimizer mechanism to increase battery length for mobile devices is provided. An operational state of a data processing system, e.g., a mobile device, is adjusted so as to achieve a target time period of operation when the data processing system is using a depleting power supply. A predicted power consumption of individual processes executing on the data processing system is determined and a remaining amount of power that the depleting power supply can provide is also determined. A subset of processes whose execution can be suspended is determined so that the data processing system can operate for the target period of time based on the predicted power consumption of the individual processes and the amount of power that the depleting power supply can provide. The identified subset of processes are placed in a suspended execution state.07-08-2010
20120317429GREEN COMPUTING HETEROGENEOUS COMPUTER SYSTEM - A green computing heterogeneous computer system for executing software has at least one performance processor, a processor supporting logic supporting the at least one performance processor for executing tasks of the software, and a hypervisor processor that consumes less power than the at least one performance processor. Supported by the processor supporting logic, the hypervisor processor executes tasks of the software that the hypervisor processor has sufficient processing power to handle and puts the at least one performance processor to a power-conserving state. The hypervisor processor brings the at least one performance processor out of idle state to execute tasks of the software that the hypervisor processor has insufficient processing power to handle. The at least one performance and hypervisor processors simultaneously execute tasks of the software that require combined processing power of all processors.12-13-2012
20120173903SERIAL ATA (SATA) POWER OPTIMIZATION THROUGH AUTOMATIC DEEPER POWER STATE TRANSITION - A host device and a storage device with a Serial ATA (SATA) architecture to independently transition to a deeper low power state after first entering an initial low power state without first transitioning to the Active state. The transition from the Partial state to the Slumber state is direct and the transition may be enabled, but not negotiated through a handshaking process.07-05-2012
20120173902POWER MANAGEMENT OF BASE AND DETACHABLE DEVICE - An apparatus and method are disclosed for power management. A monitor module monitors a connection between a base and a detachable device from the base and from the detachable device. The detachable device provides a display for the base if the detachable device and base are connected. A detection module detects a connection event selected from the group consisting of a detachable device connection to the base and a detachable device disconnection from the base.07-05-2012
20120173901PERFORMANCE IMPROVEMENTS IN A WIRELESS CLIENT TERMINAL USING ASSISTANCE FROM A PROXY DEVICE - Various features are provided to improve communication performance and power conservation in a client terminal by relying on the assistance of a proxy device. For instance, rather than reporting channel measurements via a primary communication channel to a network, the client terminal may be adapted to perform (a) channel measurement feedback using out-of-band signaling via the proxy device and/or (b) active synchronization with assistance of a proxy device. In this manner, the client terminal may be able to disable or reduce power consumption over a primary communication interface for the primary communication channel while utilizing a secondary communication interface to communicate with the proxy device.07-05-2012
20100299543DISPLAY APPARATUS AND METHOD FOR SAVING POWER THEREOF - A display apparatus includes: a command receiver configured to receive power on or off command from an exterior, a power supply unit configured to supply power to the display apparatus and a control unit coupled to the command receiver and the power supply unit, determining whether auxiliary power exists when the power off command is received, wherein the control unit is configured for two power saving modes.11-25-2010
20100050006Communication apparatus, power supply control method, display apparatus, communication method, and computer program product - The detecting unit detects a disconnection of communications that have been established with a display apparatus. When the disconnection of the communications is detected, the message generating unit generates a confirmation message that confirms whether the communications should be reestablished. The transmitting unit transmits the confirmation message to the display apparatus. The receiving unit receives a reply message that indicates whether the communications should be reestablished from the display apparatus. The main power supply controlling unit shuts down the main power supply when the reply message indicates that the communications should not be reestablished, or when no reply message is received.02-25-2010
20100050004INTRODUCING SELECTIVE ENERGY EFFICIENCY IN A VIRTUAL ENVIRONMENT - In some embodiments, a method comprises hosting a virtual universe in which one or more avatars interact with one or more virtual objects. The method can also include presenting energy conservation options that reduce amounts of power consumed in rendering the avatars and virtual objects in the virtual universe, detecting a selection of the energy conservation options, and configuring logic for rendering the avatars and virtual objects according to the selected energy conservation options. The method can also comprise rendering, according to the selection of energy conservation options, the avatars and virtual objects in the virtual universe.02-25-2010
20120179925STORAGE SYSTEM - A storage system including: a storage apparatus including a plurality of storage devices on which a plurality of logical units is configured and a first controller that controls accesses to the plurality of logical units; and a file server coupled to said storage apparatus and including a second controller and a memory storing management information which indicates relationships between each of the plurality of logical units and each of a plurality of indicators; wherein the first controller, in response to a request to create a first folder with a first indicator, creates the folder on one or more first logical units included in the plurality of logical units, the one or more first logical units related to the first indicator.07-12-2012
20120179924INTEGRATED CIRCUIT, COMPUTER SYSTEM, AND CONTROL METHOD - An integrated circuit provided with a processor includes a loop detection unit that detects execution of a loop in the processor, a loop-carried dependence analysis unit that analyzes the loop in order to detect loop-carried dependence, and a power control unit that performs power saving control when no loop-carried dependence is detected. By detecting whether a loop has loop-carried dependence, loops for calculation or the like can be excluded from power saving control. As a result, a larger variety of busy-waits can be detected, and the amount of power wasted by a busy-wait can be reduced.07-12-2012
20100275044CACHE ARCHITECTURE WITH DISTRIBUTED STATE BITS - Embodiments that that distribute replacement policy bits and operate the bits in cache memories, such as non-uniform cache access (NUCA) caches, are contemplated. An embodiment may comprise a computing device, such as a computer having multiple processors or multiple cores, which has cache memory elements coupled with the multiple processors or cores. The cache memory device may track usage of cache lines by using a number of bits. For example, a controller of the cache memory may manipulate bits as part of a pseudo least recently used (LRU) system. Some of the bits may be in a centralized area of the cache. Other bits of the pseudo LRU system may be distributed across the cache. Distributing the bits across the cache may enable the system to conserve additional power by turning off the distributed bits.10-28-2010
20120233480POWER SAVING NOTIFICATION SYSTEM, TERMINAL DEVICE, POWER SAVING NOTIFICATION METHOD, AND POWER SAVING NOTIFICATION PROGRAM - A power saving notification system includes: a power saving possibility judgment unit which judges whether electric power saving is possible in a prescribed function of a terminal device compared to a current setting value of the function or not based on operation history information on the terminal device; and a notification unit which notifies the user of the result of the judgment when the power saving possibility judgment unit judges that electric power saving is possible.09-13-2012
20120233478METHODS AND SYSTEMS FOR DATA INTERCHANGE BETWEEN A NETWORK-CONNECTED THERMOSTAT AND CLOUD-BASED MANAGEMENT SERVER - Aspects of the present invention provide energy conserving communications for networked thermostats powered, in part, by batteries. A thermostat communication server stores a thermostat battery-level to determine what data should be sent to the thermostat. The thermostat communication server classifies types of data to be transmitted to the thermostat according to a data priority ranging from a low-priority to a high-priority data type. If the battery-level associated with the battery on the thermostat is at a low battery-level, the thermostat communication server may only transmit data classified under a high-priority data type. This conserves the power used by the thermostat, allows the battery on the thermostat time to recharge and perform other functions. If the battery-level of the thermostat is at a high level, the thermostat communication server may transmit a range of data to the thermostat classified from a low-priority type to a high-priority data type.09-13-2012
20120254642Information Processing Device, Method for Calculating Degree of Contribution to Power Saving, and Presentation Method - According to an embodiment, an information processing device includes a storage section, a computing section, and an index calculating section. The storage section stores a current set value for each of the at least one setting item associated with saving of power consumed by a computer and table data including a score defined in advance for each of set values. The computing section performs a computation for converting the current set value into a score and a computation for converting a most power-saving one of the set values into a score on the basis of a result of checking the current set values at fixed intervals and the scores in the table data. The index calculating section calculates an index of how much drive status of the computer with the current set values contributes to power saving on the basis of results of the computations from the computing section.10-04-2012
20120254643Managing Power Consumption In A Multi-Core Processor - A processor may include a core and an uncore area. The power consumed by the core area may be controlled by controlling the Cdyn of the processor such that the Cdyn is within an allowable Cdyn value irrespective of the application being processed by the core area. The power management technique includes measuring digital activity factor (DAF), monitoring architectural and data activity levels, and controlling power consumption by throttling the instructions based on the activity levels. As a result of throttling the instructions, throttling may be implemented in 310-04-2012
20120254640ALLOCATION OF STORAGE RESOURCES IN A NETWORKED COMPUTING ENVIRONMENT BASED ON ENERGY UTILIZATION - Embodiments of the present invention provide an approach to provision storage resources (e.g., across an enterprise storage system (ESS) such as a general parallel file system (GPFS) or the like) for different workloads in an energy efficient manner. The system evaluates different energy profiles/workloads' energy consumption characteristics of storage devices to determine an allocation plan that reduces the energy cost (e.g., results in the lowest cost/energy consumption for handling a storage workload). In a typical embodiment, energy consumption characteristics for handling a particular storage workload will be determined. Thereafter, a type of storage device capable of handling the workload will be determined. Then, an allocation plan that results in the most efficient energy consumption for handling the workload will be developed. In general, the allocation plan is based upon the energy consumption characteristics and an energy efficiency algorithm. The energy efficiency algorithm serves to identify storage device(s) that can handle the workload in such a way as to reduce total energy consumption and, accordingly, costs. Along these lines, the energy efficiency algorithm may also consider other factors such as capacity and load of storage devices and service level agreement (SLA) terms in addition to energy costs (e.g., over times of day and/or days of week). In any event, at least one storage device can then be selected for handling the storage workload according to the allocation plan.10-04-2012
20120185711FAN CONTROL DURING LOW TEMPERATURE OPERATIONS TO REDUCE PLATFORM POWER - In general, in one aspect, the disclosure describes running a cooling fan within a computer at low speed while the computer is in low temperature operations (e.g., idle). The operation of the cooling fan may reduce CPU temperature enough to decrease CPU leakage power, offsetting the power consumption of the fan, and possibly resulting in a net system power reduction. The benefit at the platform level increases further when considering the low efficiency of voltage regulation (VR) in this lower power regime, and potentially reductions in other components (e.g., graphics processor). The optimal fan speed is the speed at which the overall system power is reduced the most (e.g., CPU power savings is greater than fan power utilized). The optimal temperature may be determined dynamically during operation or may be determined in manufacturing and applied statically during operation.07-19-2012
20120185710DETERMINING AND OPTIMIZING ENERGY CONSUMPTION OF COMPUTER SYSTEMS - Management of energy consumption within a computing environment. Energy consumption of different hardware components are measured in the computing environment. Measurement includes voltage and current versus time used by the hardware components. The different measured values of energy consumption are collected, followed by tracking the hardware component used in time during an execution of an individual execution context within the computing environment. The energy consumption of the individual execution context is calculated by associating the corresponding collected measured energy consumption to the hardware component used.07-19-2012
20120185709METHOD, APPARATUS, AND SYSTEM FOR ENERGY EFFICIENCY AND ENERGY CONSERVATION INCLUDING THREAD CONSOLIDATION - An apparatus, method and system is described herein for thread consolidation. Current processor utilization is determined. And consolidation opportunities are identified from the processor utilization and other exaction parameters, such as estimating a new utilization after consolidation, determining if power savings would occur based on the new utilization, and performing migration/consolidation of threads to a subset of active processing elements. Once the consolidation is performed, the non-subset processing elements that are now idle are powered down to save energy and provide an energy efficient execution environment.07-19-2012
20120221872System and Method for Adapting a Power Usage of a Server During a Data Center Cooling Failure - A method includes detecting that a rate of temperature change in a server is above a threshold rate, changing the server to a lowest system performance state when the rate of the temperature change in the server is above the threshold rate, and reducing a fan speed to a minimum fan speed level when the rate of temperature change is above the threshold rate.08-30-2012
20120221870COMPUTER AND METHOD FOR CONTROLLING OPERATING STATE OF DEVICE THEREOF - A computer and a method for controlling an operating state of a device thereof are disclosed. The method comprises: detecting that a display portion and a host portion of the computer are in a state of being disconnected from each other; and generating a state event or a control instruction corresponding to the disconnected state for switching the device to an inactive state. With the present invention, when the state of a computer changes, e.g., when a display portion and a host portion of a portable computer are separated, an operating system can control a device to switch its operating state, e.g., deactivate the device, based on a generated state event. In this way, it is possible to avoid unnecessary power consumption of the entire computer due to the active state of the device, and any potential security risk can be eliminated.08-30-2012
20120221871METHOD, APPARATUS, AND SYSTEM FOR ENERGY EFFICIENCY AND ENERGY CONSERVATION INCLUDING DETECTING AND CONTROLLING CURRENT RAMPS IN PROCESSING CIRCUIT - Some implementations provide techniques and arrangements for adjusting a rate at which operations are performed by a processor based on a comparison of a first indication of power consumed by the processor as a result of performing a first set of operations and a second indication of power consumed by the processor as a result of performing a second set of operations. The rate at which operations are performed by the processor may be adjusted when the comparison indicates that a difference between the first indication of power consumed by the processor and the second indication of power consumed by the processor is greater than a threshold value.08-30-2012
20120084587Automated Power Management of a Peripheral Device - Based on bounds of a period of reduced operation for a base device, a base device generates a power management message for transmission to a peripheral device. In the power management message, the base device inserts bounds of a period of reduced operation for the peripheral device. As a result, the periods of reduced operation conserve battery power in both devices and the two devices may reestablish a communications channel upon reaching the end of the period of reduced operation and resuming normal operations.04-05-2012
20120084586METHOD, DEVICE, AND SYSTEM FOR GUARANTEED MINIMUM PROCESSOR POWER STATE DWELL TIME - A method, device, and system are disclosed. In one embodiment the method includes causing a processor to enter into a first power state. Then an interrupt is received that signals the processor to leave the first power state. The method continues by causing the processor to remain in the first power state if the interrupt was received less than a minimum dwell time after the processor entered the first power state.04-05-2012
20090327774COORDINATED LINK POWER MANAGEMENT - A method, apparatus, and system for coordinated link power management. Some embodiments of a method include receiving an exit latency for each of a group of link states for a link, with a device being coupled to an interconnect via the first link. A latency tolerance value is determined and communicated, and a platform latency is received. The method further provides for determining a link budget for the device, the link budget indicating an amount of time available for an exit from a link state for the device; and selecting one of the link states based at least in part on the link budget.12-31-2009
20120084585INFORMATION PROCESSING APPARATUS CAPABLE OF REMOTE POWER CONTROL, POWER CONTROL METHOD THEREFOR, AND STORAGE MEDIUM - An information processing apparatus that has a plurality of functional units and is capable of communicating with a power monitoring apparatus and supplying power to an appropriate functional unit according to whether a main power switch is operated by an operator or a power-on instruction is received from the power monitoring apparatus. Power that should be supplied to the plurality of functional units is generated. When the main power switch is manually operated by the operator in a state where the generated power is not supplied to the plurality of functional units, control is performed to supply the generated power to the plurality of functional units. In response to the power-on instruction received in a state where the generated power is not supplied to the plurality of functional units, control is provided to supply the generated power to functional units designated in advance among the plurality of functional units.04-05-2012
20120084583DATA TRANSFORM METHOD AND DATA TRANSFORMER - A data transform method and a data transformer. The method includes: importing a data transform rule; acquiring from the data transform rule a source data definition, a destination data definition and a data transform rule definition; predicting resource energy consumption parameters of a data transform node server according to the source data definition, the destination data definition and the data transform rule definition; and deploying a resource energy consumption optimization policy of the data transform node server according to the predicted resource energy consumption parameters of the data transform node server.04-05-2012
20120084582STORAGE DRIVE MANAGEMENT - With embodiments of the invention, a more robust solution is provided using a storage driver that may already be used for the platforms operating system. This is efficient because the storage driver typically already monitors storage drive access requests, and thus knows when traffic is outstanding (performance may be critical) or when it's not outstanding (and power may be saved).04-05-2012
20120260112CONTEXT SENSITIVE POWER MANAGEMENT FOR A RESOURCE - Power management systems and methods are presented. In one embodiment, implementation of a method for context specific power management of a resource, comprises: defining a context within which a resource operates, wherein the context is defined by one or more parameters; tracking a usage history of the resource operating within the context to determine passive user feedback related to a plurality of timeout values; and determining a timeout value for a current operation of the resource within the context based on the usage history.10-11-2012
20120260114ON DEMAND HARD DISK DRIVE SYSTEM ON A CHIP POWER CONTROL SCHEME - An access instruction associated with accessing a target location in a disk is obtained. A number of units until the target location is accessed is calculated. It is determined whether there is time for the group of logic to transition from a lower power state to an operational state; the determination is based at least in part on the number of units between a current location of a read head associated with the hard disk system and the target location which is different from the current location of the read head and a warm up time associated with the group of logic. If it is determined there is time, the group of logic is put into the lower power state.10-11-2012
20120260113Changing Device Behavior Based on External Information - A first electronic device comprises an information-filtering module configured to identify one or more second electronic devices that supply one or more types of information needed by the first electronic device; an information-gathering module coupled to the information-filtering module configured to collect information from the second electronic devices; and an operation module coupled to the information-gathering module configured to adjust operational behavior of the first electronic device based on the collected information.10-11-2012
20120233479Oversubscribing Branch Circuits While Lowering Power Distribution Costs - A mechanism is provided for oversubscribing branch circuits. An active energy management mechanism determines a cumulative wattage rating using power consumption information for a powered element, the power consumption information is for a primary and a redundant portion of the powered element. The active energy management mechanism determines a power reduction power cap to be used by the powered element in the event of a loss of either a primary or a redundant power source supplied to the powered element using the cumulative wattage rating, a branch circuit rating, and a circuit breaker rating for the powered element. The active energy management mechanism sends the power reduction power cap to the powered element in order that the powered element reduces power to the power reduction power cap in the event of the loss of either the primary power source or the redundant power source supplied to the powered element.09-13-2012
20120233477DYNAMIC CORE SELECTION FOR HETEROGENEOUS MULTI-CORE SYSTEMS - Dynamically switching cores on a heterogeneous multi-core processing system may be performed by executing program code on a first processing core. Power up of a second processing core may be signaled. A first performance metric of the first processing core executing the program code may be collected. When the first performance metric is better than a previously determined core performance metric, power down of the second processing core may be signaled and execution of the program code may be continued on the first processing core. When the first performance metric is not better than the previously determined core performance metric, execution of the program code may be switched from the first processing core to the second processing core.09-13-2012
20080301478Electronic Device and Method for Controlling Current - An electronic device comprises a voltage regulator supplying a current to a load such as a micro-controller unit. The load controls the current provided to the load from the voltage regulator. Preferably, the load controls the level of current supplied to the load upon start-up, thereby avoiding power surges being drawn by the load.12-04-2008
20080301477Power Saving in Signal Processing in Receivers - A method of receiving a signal in bursts comprising frames each including payload data and error correction data received in separate time periods, the bursts being separated by time intervals during which power is saved by disabling at least some signal processing components of the receiver, Signal processing components of the receiver are disabled to save power before all the error correction data for all the frames in the burst is received.12-04-2008
20120266003SYSTEM AND METHOD FOR CONSERVING ENERGY IN A DIGITAL HOME NETWORKING DEVICE - A method and apparatus configures a power level for a device able to receive audio, video, and data signals. An input signal is received by a receiver capable of receiving broadcast data signals and digital home networking signals. The system determines if the receiver is operating in a first mode having a first power level or a second mode having a second power level based on a type of input signal received by the receiver. A control signal is generated for modifying at least one setting on a first circuit for configuring the first circuit to operate according to the first power level if the input signal is a first type of input signal. The control signal is provided to the first circuit and the first circuit is configured to operate according to the first power level based on the control signal.10-18-2012
20120266002SEMICONDUCTOR MEMORY DEVICE HAVING LOW POWER MODE AND RELATED METHOD OF OPERATION - A semiconductor memory device has a normal power mode and a low power mode. In the low power mode, a selection circuit assigns one data address to at least two memory cells in the semiconductor memory device, and it reads or writes one unit of data from the at least two memory cells.10-18-2012
20110131434IMAGE FORMING APPARATUS AND POWER CONTROL METHOD - A fixing unit fixes a toner image transferred onto a recording medium to the recording medium by heating and pressurizing the toner image. An auxiliary power supply unit includes a charging element that is charged by a power supplied from a main power supply unit. Each of the main power supply unit and the auxiliary power supply unit supplies a power to the fixing unit. A power control unit controls the main power supply unit and the auxiliary power supply unit, so that the power supplied from at least one of the main power supply unit and the auxiliary power supply unit to the fixing unit is kept sufficient.06-02-2011
20110131433METHOD FOR COUNTING VECTORS IN REGULAR POINT NETWORKS - The disclosure relates to a method for estimating the number of leader vectors with norm I06-02-2011
20110131432System and Method for Reducing Power Consumption of Memory - Systems and methods for reducing problems and disadvantages associated with power consumption in memory devices are disclosed. A method for reducing power consumption in memory may include tracking, by an operating system executing on a processor, one or more logical units of a memory system that are in use. The method may also include setting, by the operating system, a variable indicating a portion of the memory system in use based on the logical units of the memory system in use. The method may additionally include refreshing one or more of the one or more logical units of the memory system based on the variable.06-02-2011
20110131431SERVER ALLOCATION TO WORKLOAD BASED ON ENERGY PROFILES - Assigning a server among a plurality of servers to a workload. A workload distributor generates at least one energy profile for each server among the plurality of servers. The workload distributor receives a request to assign a workload, the request having a resource requirement. The workload distributor selects a subset of servers by comparing, for each server at least one energy profile to the resource requirement. The workload distributor selects from the subset of servers a selected server based on the workload and/or energy profile. The workload distributor dispatches the workload to the selected server.06-02-2011
20110131430MANAGING ACCELERATORS OF A COMPUTING ENVIRONMENT - Accelerators of a computing environment are managed in order to optimize energy consumption of the accelerators. To facilitate the management, virtual queues are assigned to the accelerators, and a management technique is used to enqueue specific tasks on the queues for execution by the corresponding accelerators. The management technique considers various factors in determining which tasks to be placed on which virtual queues in order to manage energy consumption of the accelerators.06-02-2011
20120239953INFORMATION PROCESSING APPARATUS, POWER SAVING CONTROL METHOD, AND STORAGE MEDIUM - An information processing apparatus has a sub system that, while a main system is in power saving state, analyzes a protocol of a network communication and recovers the main system to an ordinary power mode from the power saving state, in accordance with the protocol. There is a setting unit that sets a re-transition condition which is a condition to make the main system switch to the power saving state again, depending on a kind of the network communication. Further, there is a control unit that monitors whether the re-transition condition is satisfied and switches the main system to the power saving state in response to the re-transition condition being satisfied.09-20-2012
20120239952INFORMATION PROCESSING APPARATUS, POWER CONTROL METHOD, AND RECORDING MEDIUM - A disclosed information processing apparatus includes a plurality of operating systems, a resource information storage part configured to store resource information including usage status information on hardware resources of the information processing apparatus, and a controller configured to specify at least one of the operating systems based on the resource information to report a resource release request of a desired one of the hardware resources to the specified operating system and receive a resource release report on the desired hardware resource from the specified operating system to control power associated with the desired hardware resource.09-20-2012
20120239950Apparatus and Method for Variable Authentication Requirements - An apparatus and method are disclosed for variable authentication requirements. The apparatus includes an operating status module identifying a change in an operating status of a device and maintaining a history of operating statuses, and an access control module comparing a current operating status with a previous operating status. The apparatus also includes a profile module maintaining a trust indicator for each operating status. The access control module determines a level of authentication required to unlock the device in response to the trust indicator associated with the current operating status. The method includes identifying a change in an operating status of a device and maintaining a history of operating statuses, and comparing a current operating status with a previous operating status. The method also includes maintaining a trust indicator for each operating status, and determining a level of authentication required to unlock the device in response to the trust indicator associated with the current operating status.09-20-2012
20120239949ELECTRONIC DEVICE AND METHOD FOR APPLICATION AND PROFILE SENSITIVE BATTERY POWER MANAGEMENT - A method of power management in a portable electronic device powered by a finite power supply, such as a battery, is provided. The method comprises determining a residual power level in the finite power supply; and selectively disabling one or more applications installed on the portable electronic device based on an application ranking profile of each of the one or more applications when the residual power level falls below a threshold power level.09-20-2012
20120324262Automatic Power Saving for Communication Systems - Various embodiments of a power saving scheme in data communication are provided. In one aspect, a method transmits a plurality of symbols each of which containing an overhead portion and at least a portion of a respective data transmission unit (DTU). In particular, the method transmits the overhead portion of a first symbol of the plurality of symbols and the at least a portion of a respective DTU of the first symbol when the at least a portion of the respective DTU of the first symbol contains payload data. The method transmits the overhead portion of a second symbol of the plurality of symbols without transmitting the at least a portion of a respective DTU of the second symbol when the at least a portion of the respective DTU of the second symbol contains no payload data.12-20-2012
20120324264Priority-Based Power Capping in Data Processing Systems - A mechanism is provided for priority-based power capping. A power management controller identifies a set of priorities for a set of partitions of the data processing system. The power management controller determines whether a measured power of the data processing system exceeds a power cap for the data processing system. Responsive to the measured power exceeding the power cap, the power management controller sends a set of commands to a set of component actuators to adjust one or more of a set of operation parameters for a set of components associated with the set of partitions using the set of priorities. The set of component actuators adjust the one or more of the set of operational parameters associated with the set of component in order to reduce a power consumption of the data processing system.12-20-2012
20120324265COORDINATED LINK POWER MANAGEMENT - A method, apparatus, and system for coordinated link power management. Some embodiments of a method include receiving an exit latency for each of a group of link states for a link, with a device being coupled to an interconnect via the first link. A latency tolerance value is determined and communicated, and a platform latency is received. The method further provides for determining a link budget for the device, the link budget indicating an amount of time available for an exit from a link state for the device; and selecting one of the link states based at least in part on the link budget.12-20-2012
20120324263Priority-Based Power Capping in Data Processing Systems - A mechanism is provided for priority-based power capping. A power management controller identifies a set of priorities for a set of partitions of the data processing system. The power management controller determines whether a measured power of the data processing system exceeds a power cap for the data processing system. Responsive to the measured power exceeding the power cap, the power management controller sends a set of commands to a set of component actuators to adjust one or more of a set of operation parameters for a set of components associated with the set of partitions using the set of priorities. The set of component actuators adjust the one or more of the set of operational parameters associated with the set of component in order to reduce a power consumption of the data processing system.12-20-2012
20120324261USB 3.0 HOST WITH LOW POWER CONSUMPTION AND METHOD FOR REDUCING POWER CONSUMPTION OF A USB 3.0 HOST - A USB 3.0 host with low power consumption includes a super speed circuit, a non-super speed circuit, and a control module. The super speed circuit is used for transmitting data at a first transmission speed. A default state of the super speed circuit is turning-off. The non-super speed circuit is used for transmitting data at a second transmission speed, a third transmission speed, or a fourth transmission speed. The first transmission speed is faster than the second transmission speed, the third transmission speed, and the fourth transmission speed. The control module is used for detecting whether a USB peripheral device is connected to the USB 3.0 host, and controlling turning-on and turning-off of the super speed circuit.12-20-2012
20120324260ELECTRONIC APPARATUS FOR SAVING POWER, AND METHOD OF SAVING POWER IN AN APPARATUS - According to one embodiment, a transceiver acquires actual consumption data and predicted consumption data for each time slot, from a power supply management system. A data analysis block analyzes the actual consumption data and the predicted consumption data, and generates graph data representing a graph showing a result of the analysis. A display control block causes a display device to display the graph and a power-save line in the graph. A power-save line control block moves the power-save line to a desired position and utilizes a value associated with the desired position as a value at which to start power saving. A command signal output block outputs a power-save command signal to an apparatus which should save power, if the actual consumption data and/or the predicted consumption data exceed the value indicated by the power-save line.12-20-2012
20120272078METHOD AND SYSTEM FOR THERMAL MANAGEMENT OF BATTERY CHARGING CONCURRENCIES IN A PORTABLE COMPUTING DEVICE - A method and system for reducing thermal load by monitoring temperatures within a portable computing device and, based on those temperatures, controlling a battery charge function are disclosed. The method includes monitoring a power management integrated circuit (“PMIC”) to determine if it is generating excess thermal energy that is contributory to an elevated temperature in a physically proximate application specific integrated circuit (“ASIC”). If so, and if the excess thermal energy is attributable to an ongoing battery recharge operation executed by the PMIC, a thermal policy manager module may execute a thermal mitigation technique algorithm to override the PMIC battery recharge function. One exemplary thermal mitigation technique may include a reduction of current sent to the battery, thus slowing the charge cycle and reducing the generation of excess thermal energy.10-25-2012
20120324257POWER SUPPLY - A power supply according to various embodiments of the disclosure is configured to detect an event and, in response to the event, alternately supply power to a plurality of provided devices via a provided bus at a first current level or at a second current level, the second current level less than the first current level. Among other things, embodiments in this disclosure help allow additional devices to be used on a bus, even where the total power consumption of the devices would normally exceed a maximum defined by a bus architecture. Furthermore, various embodiments help allow a single gauge of wire to be used throughout a bus network (even where long lengths of wire are required) while still providing sufficient power to the devices connected to the bus.12-20-2012
20120324258POWER STATE MANAGEMENT OF AN INPUT/OUTPUT SERVICING COMPONENT OF A PROCESSOR SYSTEM - A method of regulating power states in a processing system may begin with a processor component reporting a present processor power state to an input-output hub, where the present processor power state corresponds to one of a plurality of different processor power states ranging from an active state to an inactive state. The input-output hub receives data indicative of the present processor power state and, in response to receiving the present processor power state, establishes a lowest allowable hub power state that corresponds to one of a plurality of different hub power states ranging from an active state to an inactive state. The method continues by determining a present hub power state for the input-output hub, wherein depth of the present hub power state is less than or equal to depth of the lowest allowable hub power state.12-20-2012
20120324256DISPLAY MANAGEMENT FOR MULTI-SCREEN COMPUTING ENVIRONMENTS - Embodiments of the present invention provide a method, system and computer program product for power management for a multi-display computing environment. In an embodiment of the invention, a computer data processing system can be configured for power management for a multi-display computing environment. The system can include a computer with at least one processor and memory, a video display adapter disposed in the computer and multiple different displays driven by the adapter. The system also can include a selective power management module coupled to the computer and configured to selectively apply power management to only one of the displays in which a period of inactivity is detected, while not applying power management to remaining ones of the displays.12-20-2012
20120324259POWER AND LOAD MANAGEMENT BASED ON CONTEXTUAL INFORMATION - A power context system is described herein that makes decisions related to device power usage based on factors such as location, load, available alternatives, cost of power, and cost of bandwidth. The system incorporates contextual knowledge about the situation in which a device is being used. Using the context of location, devices can make smarter decisions about deciding which processes to migrate to the cloud, load balancing between applications, and switching to power saving modes depending on how far the user is from a power source. As the cloud becomes more frequently used, load balancing by utilizing distributed data warehouses to move processes to different locations in the world depending on factors such as accessibility, locales, and cost of electricity are considerations for power management. Power management of mobile devices is becoming important as integration with the cloud yields expectations of devices being able to reliably access and persist data.12-20-2012
20110239017SCHEDULING AN APPLICATION FOR PERFORMANCE ON A HETEROGENEOUS COMPUTING SYSTEM - The invention concerns scheduling an application comprised of precedence constrained parallel tasks on a high-performance computer system. The computer system has a plurality of processors each enabled to operate on different voltage supply levels. First, a priority order for the tasks based on the computation and communication costs of the tasks is determined. Next, the based on the priority order of the tasks, assigning each task both a processor and a voltage level that substantially minimises energy consumption and completion time for performing that task when compared to energy consumption and completion time for performing that task on different combinations of processor and voltage level. It is an advantage of the invention that the scheduling takes account not only completion time (makespan), but also energy consumption. Aspects of the invention include a method, software, a scheduling module of a computer and a schedule.09-29-2011
20110239016Power Management in a Multi-Processor Computer System - Power management in a multi-processor computer system, including a computer program product for facilitating receiving a task for execution in a high power state, and determining a current power state of a processor in a multi-processor system, the system having a specified power limit. The task is dispatched to the processor if the current power state of the processor is the high power state. If the processor is not in the high power state, then it is determined if moving the processor into the high power state will cause the multi-processor system to exceed the specified power limit. The processor is moved into the high power state in response to determining that moving the processor into the high power state will not cause the multi-processor system to exceed the specified power limit. The task is dispatched to the processor in response to moving the processor into the high power state.09-29-2011
20110239015Allocating Computing System Power Levels Responsive to Service Level Agreements - A computer program product for initiating a task in a computer system including executing a method that includes receiving a task and a status of the task relative to a target service level. A current power state of the processor is determined. Execution of the task is initiated on the processor in response to the status indicating that the task is meeting the target service level and to the current power state being a low power state. It is determined if the processor can be moved into a high power state, the determining performed if the task is not meeting the target service level and the current power state is the low power state. If the processor can be moved into the high power state then the processor is moved into the high power state and execution of the task is initiated on the processor.09-29-2011
20110239014POWER MANAGEMENT FOR INPUT/OUTPUT DEVICES - A method for managing power consumption by a network device is disclosed. The network device includes first and second ports, each of the first and second ports identified by a unique identifier and adapted to handle separate network traffic. The method includes verifying that the first and the second ports are connected to a common network end node; shutting off a link between the first port and the network end node; obtaining the unique identifier of the first port; creating, on the second port, a virtual port in response to the unique identifier of the first port; discovering the virtual port on the network device; and redirecting traffic formerly routed through the link through the virtual port.09-29-2011
20110239013POWER MANAGEMENT OF DATA PROCESSING RESOURCES, SUCH AS POWER ADAPTIVE MANAGEMENT OF DATA STORAGE OPERATIONS - A system and method for performing power conservation actions is described. In some examples, the system determines a power conservation policy based on information from the system, and implements that policy in an enterprise or in one or more buildings, such as within a data storage environment. In some examples, the system adds or modifies global filters or system performance based on information from the system.09-29-2011
20120278638ELECTRONIC DEVICE AND CONTROL METHOD - An electronic device includes a main body, a cover hinged on the main body, a first sensor arranged in the main body, a second sensor arranged in the cover, and a processor. The first sensor senses a change of displacement of the first sensor when the main body is moved to generate a first coordinate information. The second sensor senses a change of displacement of the second sensor when the cover is moved to generate a second coordinate information. The processor calculates an angle between the main body and the cover according to the first coordinate information and the second coordinate information, and controls the electronic device according to the calculated angle. A method for controlling an electronic device is also provided.11-01-2012
20110276813COMMUNICATION DEVICE - A communication device includes a main processing unit and a sub-processing unit. The main processing unit includes a main performing unit that acquires time information indicating a performance time, stores the time information in a time information storing unit, sets a timer unit to detect that it is the time indicated by the time information, and performs the process when detecting that it is the time, and a power saving determining unit that transmits a report of detecting that a power saving performance condition is satisfied to the sub-processing unit. The sub-processing unit includes a power control unit that stops the supply of power to the main processing unit when receiving the report that the power saving performance condition is satisfied, and restarts the supply of power when the timer unit detects that it is the time indicated by the time information of the time information storing unit.11-10-2011
20110276815INTERFACE FREQUENCY MODULATION TO ALLOW NON-TERMINATED OPERATION AND POWER REDUCTION - Embodiments of the invention are generally directed to systems, methods, and apparatuses for using interface frequency modulation to allow non-terminated operation and power reduction. In some embodiments, an apparatus includes an interface having a termination mode and a power management controller coupled with the interface. The apparatus may also include a power management controller coupled with the interface. In some embodiments, the power management controller is capable of dynamically reducing the operating frequency of the interface and disabling the termination mode to reduce the power consumed by the interface. Other embodiments are described and claimed.11-10-2011
20110276814COMMUNICATION DEVICE - Provided is a communication device connected to a network access device constituting a network and capable of communication through the network, includes: a circumstance determining unit that determines whether or not the network is in a circumstance of executing a protocol causing blocking of communication on the network by changing the link speed to the network access device; a power saving determining unit that determines whether or not a predetermined power saving performance condition is satisfied; and a link speed control unit that maintains the link speed when it is determined that the power saving performance condition is satisfied and when the network is in the circumstance of executing the protocol.11-10-2011
20120331318SAVING POWER BY MANAGING THE STATE OF INACTIVE COMPUTING DEVICES - Managing readiness states of a plurality of computing devices. A programmed processor unit operates, upon receipt of a request, to: provide one or more computing devices from an inactive pool to an active pool, or accept one or more active computing devices into the inactive pool. The system proactively manages the inactive states of each computing device by: determining the desired number (and identities) of computing devices to be placed in each inactive state of readiness by solving a constraint optimization problem that describes a user-specified trade-off between expected readiness (estimated time to be able to activate computing devices when they are needed next) and conserving energy; generating a plan for changing the current set of inactive states to the desired set; and, executing the plan. Multiple alternative ways of quantifying the desired responsiveness to surges in demand are provided.12-27-2012
20120331319SYSTEM AND METHOD FOR POWER OPTIMIZATION - A technique for reducing the power consumption required to execute processing operations. A processing complex, such as a CPU or a GPU, includes a first set of cores comprising one or more fast cores and second set of cores comprising one or more slow cores. A processing mode of the processing complex can switch between a first mode of operation and a second mode of operation based on one or more of the workload characteristics, performance characteristics of the first and second sets of cores, power characteristics of the first and second sets of cores, and operating conditions of the processing complex. A controller causes the processing operations to be executed by either the first set of cores or the second set of cores to achieve the lowest total power consumption.12-27-2012
20120331317POWER-CAPPING BASED ON UPS CAPACITY - The power draw of equipment in a data center may be capped in order to keep the power draw under the capacity of the Uninterruptable Power Supply (UPS) that serves the data center. The current capacity of the UPS may be estimated, and the equipment may be controlled so as to keep the equipment's power draw under that current capacity. Factors that may affect the estimate of the UPS's current capacity include the history of temperature and humidity to which the UPS has been subject, and charge/discharge history of the UPS. Factors that may affect the decision of which equipment to throttle to a lower power level include: the current power load at the data center, the type of software that each server is running, and the demand for that software.12-27-2012
20110307719SYSTEM AND METHOD FOR CONNECTING POWER-SAVING LOCAL AREA NETWORK COMMUNICATION LINK - Provided is a power-saving local area network communication link connection system and method that may automatically switch a communication link between a computer terminal and an Ethernet switch using an Ethernet communication and thus, an Ethernet switch may be prevented from being unnecessarily used. The power-saving local area network communication link connection system may include a monitoring unit to obtain utilization information from each of the plurality of Ethernet switches, a command generating unit to generate a control command based on the utilization information, and a mode switching unit to control, based on the control command, a patch switch to be connected to each of the plurality of Ethernet switches, and to switch a mode of each of the plurality of Ethernet switches.12-15-2011
20110320838DYNAMIC CPU VOLTAGE REGULATOR PHASE SHEDDING - A voltage regulator phase shedding system includes one or more subsystems to receive a system management interrupt (SMI), gather processor utilization information, determine whether to adjust a performance state, lookup voltage regulator information for new performance state, adjust active voltage regulator phase, and adjust performance state. The voltage regulator phase shedding system can also include one or more subsystems to read a power measurement, calculate throttling requirements, determine whether to adjust a throttling, lookup voltage regulator information for new performance state capacity, adjust active voltage regulator phase, and adjust throttling.12-29-2011
20120102343MOUNTING-LINE POWER CONTROL DEVICE AND MOUNTING-LINE POWER CONTROL METHOD - A mounting-line power control device (04-26-2012
20120102342ACTIVE DISPLAY PROCESSOR SLEEP STATE - Power consumption and dissipation is reduced during active display of content from an internal display buffer using a power supply topology that powers a display subsystem separately from the other components of a CPU. The power supply topology enables a processor to enter a sleep state without disabling the active display of content. The processor enters a processor sleep state when the display buffer is full and the processor components are no longer needed. The processor exits the processor sleep state when the display buffer is empty and operates in conjunction with the display subsystem to fill the buffer with more content. The processor continues to enter and exit the processor sleep states as appropriate until active display ends.04-26-2012
20120290860COMPUTER POWER SUPPLIER WITH A STANDBY POWER SAVING CONTROLLER - A computer power supplier with a built-in power saving controller has a power input socket connected to external AC power supply. A DC switch circuit is connected to AC power and converts AC into DC. A control switch is connected to the AC power. A computer power supply circuit is connected to the AC power of the control switch and converts the AC into DC. A power output socket is connected to the AC power of the control switch and supplies power to peripheral equipment. A power start-up circuit is connected to the DC power of the DC switch circuit and the control switch, and operates the control switch to transmit AC power. A cluster cable transmits the DC power to the mainframe. A boot button is connected both to the start-up circuit and mainboard, so as to convert the AC into DC for the mainframe and start-up circuit.11-15-2012
20100211808Data storage devices and power management methods thereof - A data storage device includes a data storage medium and a controller. The controller is configured to control at least one of a reading, erasing, and writing operation on the data storage medium. The controller includes an interface and a power management unit. The interface is configured to exchange at least one of a command, an address, and data with a host. The power management unit is configured to change the power mode of the interface into a power saving mode if: a command input from the host is not executed, data transfer is not actually executed in executing the command, or status information is not reported after the command is executed.08-19-2010
20130013941ON-DEMAND STORAGE SYSTEM ENERGY SAVINGS - Embodiments of the invention relate to dynamic power management of storage volumes and disk arrays in a storage subsystem to mitigate loss of performance resulting from the power management. The volumes and arrays are prioritized, and in real-time power is selectively reduced in response to both the prioritization and an energy savings goal. A feedback loop is provided to dynamically measure associated power gain based upon a lowering of power consumption, and device selection may be adjusted based upon received feedback.01-10-2013
20130013942Information Processing Device and Method for Controlling Information Processing Device - A first battery 01-10-2013
20120151231POWER SUPPLY SWITCHING DEVICE, A POWER SUPPLY SWITCHING DEVICE CONTROL METHOD AND A POWER SUPPLY CONTROL PROGRAM - A power supply switching device is comprising: a first connector which connects with a USB (Universal Serial Bus) power bus which supplies electric power; a second connector which connects with a USB connector; and a switching unit which switches between a supplying state in which electric power is supplied from the USB power bus to the USB connector and a cutoff state in which electric power is not supplied from the USB power bus to the USB connector.06-14-2012
20110138204SYSTEM AND METHOD FOR MESSAGE QUEUE MANAGEMENT IN A POWER-SAVE NETWORK - A method and apparatus for communicating information between networked devices. Various aspects of the present invention may comprise, for example, a first networked device communicating information over a wireless communication network to a second networked device having power-save mode capability. The first networked device receives an incoming message from the second networked device. A first outgoing message is transmitted to the second networked device prior to transmitting a previously queued outgoing message. A second outgoing message is transmitted to the second networked device prior to the previously queued outgoing message being transmitted. Information may be communicated to the second networked device in a particular manner that depends on whether the second networked device has power-save capability. Communication medium access may be performed in a particular manner, depending on whether the second networked device has power-save capability.06-09-2011
20110161702TECHNIQUES FOR ENTERING A LOW-POWER LINK STATE - Techniques to cause a point-to-point link between system components to engage in a negotiation process that may lead to the link transitioning from an active state in which data may be transmitted between system components to a low power state where data may not be transmitted. The negotiation process may occur between each pair of nodes within an electronic system that are interconnected via point-to-point link. The negotiation may ensure that there are no pending transactions or transactions that may occur within an upcoming period of time. Through this negotiation each component acknowledges and agrees to transition the link to the low power state.06-30-2011
20110161701REGULAR OR DESIGN APPLICATION - An electronic timer system includes a counter-based time generator for continuously generating raw base time, and a translator for translating between raw base time and local precise time. The counter-based time generator is driven by an oscillator. The timer system further includes a temperature sensor placed in the proximity of the oscillator or a crystal used by the oscillator, and a look-up control table holding temperature values associated with corresponding control values representative of the configurable parameter value A. The look-up control table is generated when the timer system is synchronized with a synchronization source so that the temperature and control values are characteristic of the operation of the timer system in synchronization. The timer system is also configured for reading, when no synchronization source is available, a temperature value from the temperature sensor, and for extracting, based on the temperature value, a control value from the look-up control table corresponding to a suitable (quantized) representation of the temperature value. The timer system is then able to configure the parameter variable A in accordance with the extracted control value.06-30-2011
20110161700APPARATUS AND METHOD FOR REDUCING POWER CONSUMPTION OF ACCESS POINT FUNCTION IN PORTABLE TERMINAL - An apparatus and a method for operating as a virtual terminal to participate in competition for medium access while a mobile terminal operates as an access point are provided. In a case where the mobile terminal accesses a medium while competing with a terminal that transmits data of low priority, an apparatus and a method for entering a low power mode to resolve a power consumption problem of the mobile terminal are provided. The apparatus includes a medium competing unit, which allows the mobile terminal to operate as a virtual terminal and participate in competition for a medium access when data to be transmitted does not exist in the mobile terminal operating as an Access Point (AP).06-30-2011
20110161699Methods and System for Reducing Battery Leakage in an Information Handling System - A method for reducing current leakage in a battery in communication with an information handling system (IHS) is disclosed herein. The method includes providing a battery management unit (BMU) in the battery, the BMU in communication with an embedded controller, wherein the BMU comprises a detector pin. The method further includes placing the BMU in a standby mode to disable power from the battery to the IHS while the battery is coupled to the IHS, and configuring the BMU to exit the standby mode, if an external power supply is coupled to the IHS, to enable battery power from the battery to the IHS. Also disclosed is an information handling system (IHS) which includes an embedded controller operable to initiate a power-on sequence in the IHS, and a battery having a battery management unit (BMU), wherein the BMU is initially placed in a standby mode to disable battery power to the IHS, the BMU in communication with the embedded controller. The system may further include a power switch in communication with the embedded controller and the BMU, and a control switch configured to be switched on if an external power supply is coupled to the IHS or if the power switch is activated without the external power supply, wherein the BMU unit exits the standby mode if the control switch is switched on, thereby enabling battery power to the IHS.06-30-2011
20110161698System management controller entry into reduced power state - A system includes an operating system, first hardware, second hardware, and a system management controller, the latter which also may be considered an integrated management module or a baseboard management module. The first hardware executes the operating system and is under control of the operating system. The operating system causes the first hardware to enter a first reduced power state. The second hardware is different than the first hardware and is not under control of the operating system. The system management controller is implemented by the second hardware. In response to the operating system causing the first hardware to enter the first reduced power state, the system management controller causes the second hardware to enter a second reduced power state corresponding to the first reduced power state. The first reduced power state may be a more-power-conserving reduced power state than the second reduced power state.06-30-2011
20110161697METHOD AND SYSTEM FOR DISCOVERABILITY OF POWER SAVING P2P DEVICES - In a method and system, a first wireless device may be periodically cycled between an available state and a power saving state. While in the available state, the first wireless device may receive a probe request sent from a second wireless device operating in a discovery state. The first wireless device may transmit a probe response to the second wireless device. Other embodiments are described and claimed.06-30-2011
20110161696REDUCING ENERGY CONSUMPTION IN A CLOUD COMPUTING ENVIRONMENT - Functionality can be implemented within a cloud manager to leverage energy consumption data of cloud processing and their associated facility resources when selecting computing nodes to complete the job. The cloud manager can determine possible computing nodes to complete the job based on the job attributes. The cloud manager can determine aggregate energy data of the cloud resources from an energy usage database. The cloud manager can analyze the energy usage data to determine a configuration of the computing nodes to perform the job that reduces total energy consumption. For example, a configuration of servers can be based on a number of servers and processor utilization at the servers to perform the job. The cloud manager can assign the job to the servers and set the processor utilization at the servers in accordance with the resource configuration determined to minimize energy consumption.06-30-2011
20130024705VIRTUAL COMPUTER SYSTEM, DEVICE SHARING CONTROL METHOD, COMPUTER-READABLE RECORDING MEDIUM, AND INTEGRATED CIRCUIT - A total power saving controller AA01-24-2013
20130173941Controlling Temperature Of Multiple Domains Of A Multi-Domain Processor - In one embodiment, the present invention includes a method for determining, in a controller of a multi-domain processor, whether a temperature of a second domain of the multi-domain processor is greater than a sum of a throttle threshold and a cross-domain margin, and if so, reducing a frequency of a first domain of the multi-domain processor by a selected amount. In this way, a temperature of the second domain can be allowed to reduce, given a thermal coupling of the domains. Other embodiments are described and claimed.07-04-2013
20080235526POWER-SAVING CLOCKING TECHNIQUE - A method and system for providing a clock signal having reduced power consumption is provided, called the hybrid clock system. The hybrid clock system uses a PLL for high-speed data transfers, but provides a power-saving mode for transferring data while consuming less power. In the normal mode, the hybrid clock system contains a reference clock that operates at a low frequency that drives a PLL. The PLL multiplies the reference clock frequency to a much higher frequency, and supplies the clock signal to a data transfer circuit. In the power-saving mode, the hybrid clock system turns off the PLL and connects the reference clock directly to the data transfer circuit.09-25-2008
20130185571System and Method for Providing Power-Save Operation in an In-Home Communication Network - A first device of a multimedia over coax alliance (MoCA) network may grant a second device of the MoCA network permission to enter a power-saving state. While the second device is in the power-saving mode, the first device may grant bandwidth to the second device during one or more predetermined timeslots. The bandwidth may be granted without a corresponding reservation request from the second device. While the second device is in the power-saving state, it may track time utilizing a clock that is synchronized to the system time of the MoCA network, and transmit during one or more of the predetermined timeslots without first transmitting a corresponding reservation request. The second device may utilize a first modulation profile when not operating in the power-saving state, and utilize a second modulation profile when operating in the power-saving state.07-18-2013
20080222436POWER SUPPLY VOLTAGE REGULATOR CIRCUIT AND MICROCOMPUTER - A power supply voltage regulator circuit including a power supply circuit which switches to a first through a fourth state; the first state being the state wherein voltage is supplied to neither a normal circuit nor a backup system circuit based on the combination of logic for the normal circuit power control signal, the second state being the state wherein a primary power supply voltage is supplied to the normal circuit and a secondary power supply voltage is supplied to the backup system circuit, the third state being the state wherein voltage is not supplied to the normal circuit and the secondary power supply voltage is supplied to the backup system circuit, the fourth state being the state wherein the primary power supply voltage is supplied to both the normal circuit and the backup system circuit.09-11-2008
20130145187MULTI-DEVICE POWERSAVING - A control system reduces energy consumption in a multi-device system comprising a plurality of devices. The control system includes at least one processor. The processor is programmed to receive a job to be executed, as well as a selection of one of the plurality of devices for executing the job and a transfer cost for transferring the job from the selected device to each of the plurality of devices. A device to execute the job is determined through optimization of a first cost function. The first cost function is based on the device selection and the transfer costs. The job is assigned to the determined device and a time-out for each device in the multi-device system is determined through optimization of a second cost function. The second cost function is based on an expected energy consumption by the multi-device system. The devices are provided with the determined time-outs.06-06-2013
20130179709Controlling Operating Frequency Of A Core Domain Via A Non-Core Domain Of A Multi-Domain Processor - In one embodiment, the present invention includes a method for determining that a non-core domain of a multi-domain processor is not operating at a frequency requested by the non-core domain, sending a request from the non-core domain to a power controller to reduce a frequency of a core domain of the multi-domain processor, and responsive to the request, reducing the core domain frequency. Other embodiments are described and claimed.07-11-2013
20120254641APPARATUS AND METHOD FOR HIGH CURRENT PROTECTION - An apparatus may comprise one or more processor cores of a processor and a set of current limiters. Each current limiter may be coupled to a respective processor core and arranged to monitor processor activity in the processor, to compare the processor activity to one or more current limits of multiple current limits; and to initiate a current-limiting action when the one or more current limits is exceeded.10-04-2012
20130091368METHOD FOR OPTIMIZING MANAGEMENT OF STANDBY OF A MICROPROCESSOR ENABLING THE IMPLEMENTATION OF SEVERAL LOGICAL CORES AND COMPUTER PROGRAM IMPLEMENTING SUCH A METHOD - The subject of the invention is in particular the optimization of standby management of a part of a microprocessor allowing implementation of at least two logic cores, said at least one microprocessor comprising means for placing at least one resource non common to said at least two logic cores on standby. After having determined (04-11-2013
20130097439Electronic Apparatus that Controls Switching to Energy-Saving Mode - Provided is an electronic apparatus including: a network interface configured to receive data via a network; a communication processing unit configured to notify of a network communication type and a network communication amount of the received data; and an operation mode control unit configured to switch an operation mode from a normal mode to an energy-saving mode when a network communication does not occur in the network interface before a waiting time based on the network communication amount for each network communication type notified of from the communication processing unit has elapsed.04-18-2013
20130097438INFORMATION PROCESSING DEVICE AND MANAGEMENT METHOD OF POWER SAVING MODE - In an information processing device, when shifting to a power saving mode, a volatile storage unit is controlled to continuously hold a program loaded to the volatile storage unit even in the power saving mode, and a logical value indicating the power saving mode is set to an input/output port of a third control unit. At time of activation, a second control unit determines if the logical value indicating the power saving mode has been set to the input/output port, and when the logical value has been set, recognizes the activation as a return from the power saving mode and executes the program held in the volatile memory, and when the logical value has not been set, recognizes the activation as a normal activation, loads the program held in the nonvolatile memory to the volatile memory and executes the loaded program.04-18-2013
20130097441MULTI-CORE PROCESSOR SYSTEM, POWER CONTROL METHOD, AND COMPUTER PRODUCT - A multi-core processor system includes a core configured to detect among multiple cores, a state of migration of first software from a first core to the core whose specific processing capacity value is lower than that of the first core; and set the processing capacity value of the first core at a time of the detection to be a processing capacity value that is lower than that before the migration when detecting the state of migration.04-18-2013
20130097440EVENT SERVICE FOR LOCAL CLIENT APPLICATIONS THROUGH LOCAL SERVER - In server/client architectures, the server application and client applications are often developed in different languages and execute in different environments specialized for the different contexts of each application (e.g., low-level, performant, platform-specialized, and stateless instructions on the server, and high-level, flexible, platform-agnostic, and stateful languages on the client) and are often executed on different devices. Convergence of these environments (e.g., server-side JavaScript using Node.js) enables the provision of a server that services client applications executing on the same device. The local server may monitor local events occurring on the device, and may execute one or more server scripts associated with particular local events on behalf of local clients subscribing to the local event (e.g., via a subscription model). These techniques may enable development of local event services in the same language and environment as client applications, and the use of server-side code in the provision of local event service.04-18-2013
20130097436SYSTEMS AND METHODS TO FILTER DATA PACKETS - A mobile communication device includes a receiver system configured to receive unicast data packets and non-unicast data packets. The receiver system may include a hardware packet filter. The mobile communication device further includes a processor coupled to the receiver system. The processor may be configured to detect a power state change and activate the hardware packet filter at the receiver system in response to the power state change indicating a power-conservation state being entered. When the hardware packet filter is activated, the unicast data packets received at the receiver system may be provided to the processor to be filtered and the non-unicast data packets received at the receiver system are dropped at the receiver system. When the hardware packet filter is not activated, the unicast data packets and the non-unicast data packets received at the receiver system may be provided to the processor.04-18-2013
20130097437METHOD, APPARATUS, AND SYSTEM FOR ENERGY EFFICIENCY AND ENERGY CONSERVATION INCLUDING OPTIMIZING C-STATE SELECTION UNDER VARIABLE WAKEUP RATES - A processor may include power management techniques to, dynamically, chose an optimal C-state for the processing core. The measurement of real workloads on the OSes exhibit two important observations (1) the bursts of high interrupt rate are interspersed between the low interrupt rate periods and long periods of high activity levels; and (2) the interrupt rate may, suddenly, fall below an interrupt rate (of 1 milli-second, for example) that is typical of the current operating systems (OS). Instead of determining the C-state based on the stale data stored in the counters, the power control logic may determine an optimal C-state by overriding the C-state determined by the OS or any other power monitoring logic. The power control logic may, dynamically, determine an optimal C-state based on the CPU idle residency times and variable rate wakeup events to match the expected wakeup event rate.04-18-2013
20130103961Providing Wakeup Logic To Awaken An Electronic Device From A Lower Power Mode - An electronic device (04-25-2013
20130103960METHOD AND DEVICE WITH INTELLIGENT POWER MANAGEMENT - A wireless communication device (04-25-2013
20130124886Power Control Device and Electronic Device Using the Same - The invention discloses a power control device for an electronic device, comprising a power supply unit and a control circuit. The power supply unit outputs a power to an embedded controller of the electronic device according to a power control signal. The control circuit is coupled to the embedded controller, for outputting the power control signal according to an operating status indication signal generated by the embedded controller, so as to control the power supply unit to stop outputting power to the embedded controller via the power control signal when the operating status indication signal signifies a turn-off status.05-16-2013
20130124890MULTI-CORE PROCESSOR AND METHOD OF POWER MANAGEMENT OF A MULTI-CORE PROCESSOR - A multi-core processor includes a plurality of power gating elements for controlling power applied to each core. Each power gating element is coupled to a respective power gating controllers for controlling the respective power gating element to selectively provide full power to the respective core only during an active period of the respective core. A common power gating controller is coupled to the individual power gating controllers for controlling the individual power gating controllers to balance the active periods of the plurality of cores so as to substantially reduce or minimise overlapping active periods so as to reduce the total power provided to all the cores.05-16-2013
20130124887COMPUTER SYSTEM AND CONTROL METHOD THEREOF - A computer system includes memory units; a power supply to supply power to the memory units; and a controller to control the supply of power to the plurality of memory units so as to intercept power supplied from the power supply to at least one of the memory units, among the plurality of memory units according to user input.05-16-2013
20130124889METHOD AND SYSTEM OF CONTROLLING POWER CONSUMPTION OF AGGREGATED I/O PORTS - Controlling power consumption of aggregated I/O ports. At least some of the illustrative embodiments are methods that include: aggregating a plurality of input/output (I/O) ports; and controlling power consumption in the computer system. Controlling the power consumption includes: sending a command from a power policy management program to an aggregation software executing in the computer system, the aggregation software implements the aggregating; and changing a power consumption mode of at least one of the I/O ports responsive to the command.05-16-2013
20130124885ESTIMATING AND MANAGING POWER CONSUMPTION OF COMPUTING DEVICES USING POWER MODELS - Power consumption of computing devices are monitored with performance counters and used to generate a power model for each computing device. The power models are used to estimate the power consumption of each computing device based on the performance counters. Each computing device is assigned a power cap, and a software-based power control at each computing device monitors the performance counters, estimates the power consumption using the performance counters and the model, and compares the estimated power consumption with the power cap. Depending on whether the estimated power consumption violates the power cap, the power control may transition the computing device to a lower power state to prevent a violation of the power cap or a higher power state if the computing device is below the power cap.05-16-2013
20130124888NONVOLATILE STORAGE SYSTEM, POWER SUPPLY CIRCUIT FOR MEMORY SYSTEM, FLASH MEMORY, FLASH MEMORY CONTROLLER, AND NONVOLATILE SEMICONDUCTOR STORAGE DEVICE - Disclosed is a nonvolatile storage system including: a memory block having a plurality of flash memories; a flash memory power supply circuit outside of the memory block; and a flash memory controller. The flash memory power supply circuit has a plurality of types of power supply circuits for process execution, the power supply circuits for process execution generating and supplying power at a plurality of voltage levels needed to execute processes in the flash memories. The flash memory controller monitors changes of the internal states of the flash memories by communicating with the flash memories, thereby controlling the power supply circuits for process execution and the flash memories.05-16-2013
20130179708PROCESSING DEVICE - A processing device includes a plurality of input units configured to input a process request; a plurality of processing units configured to execute a process corresponding to the process request input by the plurality of input units; a power control unit configured to transfer the processing device into a power saving state and to transfer the processing device back to a regular state from the power saving state; and an operation suppression control unit configured to send an operation suppression request to the plurality of input units and the plurality of processing units before the power control unit transfers the processing device into the power saving state, and to send an operation suppression release request to the plurality of input units and the plurality of processing units when the power control unit transfers the processing device back to the regular state from the power saving state.07-11-2013
20130138985POWER MANAGEMENT USING RELATIVE ENERGY BREAK-EVEN TIME - Systems and methods may provide for determining an absolute energy break-even time for a first low power state with respect to a current state of a system. A relative energy break-even time may also be determined for the first low power state with respect to a second low power state based on at least in part the absolute energy break-even time. In addition, an operating state may be selected for the system based on at least in part the relative energy break-even time.05-30-2013
20110219247FORCED IDLE OF A DATA PROCESSING SYSTEM - Exemplary embodiments of methods and apparatuses to manage a power of a data processing system are described. One or more constraint parameters of a system are monitored. The data processing system is forced into an idle state for a first portion of a time while allowed to operate for a second portion of the time based on the one or more constraint parameters, wherein the system is forced into the idle state in response to comparing a target idle time to an actual idle time. The target idle time of the system is determined, in one embodiment, based on the one or more constraint parameters. The actual idle time of the system may be monitored to take into account interrupts which disrupt an idle time and idle times resulting from no software instructions to execute. The system may be allowed to operate based on comparisons of the target idle time and the actual idle time.09-08-2011
20110252254COMPUTER SYSTEM - Provided is a computer system in which power consumption of the system can be reduced and which can smoothly supply data for a request from a client and avoid increase in a failure rate. In the computer system, by maintaining a power activation threshold for activating a stopping server blade and load balance threshold for assigning the request to a server blade, a server blade whose power is activated but to which the request from the client is not assigned is previously arranged. Priorities of the server blades are maintained, and are periodically changed or are changed in accordance with operation information such as total operation time and the number of times of activation/stop. Further, by maintaining the power activation threshold and a power stop threshold, possibilities of the unbalance among the activated/stopped server blades and frequent control of the activation/stop only in a part of server blades are avoided.10-13-2011
20130151877SYSTEMS AND METHODS FOR PREDICTIVE CONTROL OF POWER EFFICIENCY - A computer power management system (06-13-2013
20130151876METHOD AND APPARATUS FOR QUICK RESUMPTION - When transitioning from sleep mode to active mode, a processing system loads first stage resume content and second stage resume content into a volatile memory of the processing system. The first stage resume content may contain contextual data for a first program that was in use before the processing system transitioned to sleep mode. The second stage resume content may contain contextual data for another program that was in use before the processing system transitioned to sleep mode. The processing system may provide a user interface for the first program before all of the second stage resume content has been loaded into the volatile memory. Other embodiments are described and claimed.06-13-2013
20080244289Hybrid Operating System for Battery Powered Computing Systems - Systems, methods, and/or techniques (“tools”) for hybrid operating systems for battery powered computing systems are described herein. The hybrid operating systems (OS) may include a full-power OS component that enables the computing system to operate in a full-power mode, and a low-power OS component that enables the computing system to operate in a low-power mode. In the full-power mode, the computing system consumes a first amount of electrical power, while in the low-power mode, the computing system consumes less electrical power. The computing system may include a processor that consumes a given power amount of power, and a low-power core processor that consumes less power than the processor.10-02-2008
20100318821SCALABLE, DYNAMIC POWER MANAGEMENT SCHEME FOR SWITCHING ARCHITECTURES UTILIZING MULTIPLE BANKS - According to one general aspect, a method may include receiving data from a network device. In some embodiments, the method may include writing the data to a memory bank that is part of a plurality of at least single-ported memory banks that have been grouped to act as a single at least dual-ported aggregated memory element. In various embodiments, the method may include monitoring the usage of the plurality of memory banks. In one embodiment, the method may include, based upon a predefined set of criteria, placing a memory bank that meets the predefined criteria in a low-power mode.12-16-2010
20120284545Network Device - A network device may be provided with a PHY layer process unit, a determination unit configured to determine that a link state is a link up state or a link down state, and a first control unit configured to control an electrical power supply for the PHY layer process unit. The first control unit may be configured to stop a continuous electrical power supply for the PHY layer process unit if the determination unit determines that the link state is the link down state during a first period in which the continuous electrical power supply is being performed, perform a temporary electrical power supply for the PHY layer process unit during a second period, and commence the continuous electrical power supply if the temporary electrical power supply is performed during the second period and the determination unit determines that the link state is the link up state.11-08-2012
20120284544Storage Device Power Management - Techniques for storage device power management are described that enable coordinated buffer flushing and power management for storage devices. In various embodiments, a power manager can coordinate the flushing of pending or “dirty” data from multiple buffers of a computing device in order to reduce or eliminate interleaved (e.g., uncoordinated) data operations from the multiple buffers that can cause shortened disk idle periods. By so doing, the power manager can selectively manage power states for one or more power-managed storage devices to produce longer idle periods. For example, information regarding the status of multiple buffers can be used in conjunction with analysis of historical I/O patterns to determine appropriate times to spin down a disk or allow the disk to keep spinning. Additionally, user-presence information can be utilized to tune the aggressiveness of buffer coordination and state transitions for power-managed storage devices to improve performance.11-08-2012
20120284543USER INPUT TRIGGERED DEVICE POWER MANAGEMENT - Techniques for user input triggered device power management are described that enable user inputs and activities to cause selective changes in power states for a device. Power can be boosted to a high power state to improve responsiveness for designated inputs and/or activities. When responsiveness is deemed less important in connection with particular inputs and/or activities, a low power state can be set to reduce energy consumption. In at least some embodiments, selectively switching between power states includes detecting various user inputs at a device and filtering the inputs to select power states associated with the user inputs. The device can then be operated in a selected power state until a transition to a different power state is triggered by occurrence of designated events, such as running of a set time interval, further user input, and/or completion of user activity.11-08-2012
20130159746DATA PROCESSING DEVICE AND DATA PROCESSING SYSTEM - A step down unit steps down an external power supply voltage Vcc. A bias current control circuit controls the magnitude of bias current flowing through an auxiliary path connecting an output node and the ground. A system controller increases the magnitude of the bias current, prior to a change of the operation state of a load circuit by which a relatively large change occurs to the amount of current consumed by the load circuit including a central processing unit.06-20-2013
20130159745OPTIMIZING POWER CONSUMPTION AND PERFORMANCE IN A HYBRID COMPUTER ENVIRONMENT - A method for optimizing efficiency and power consumption in a hybrid computer system is disclosed. The hybrid computer system may comprise one or more front-end nodes connected to a multi-node computer system. Portions of an application may be offloaded from the front-end nodes to the multi-node computer system. By building historical profiles of the applications running on the multi-node computer system, the system can analyze the trade offs between power consumption and performance. For example, if running the application on the multi-node computer system cuts the run time by 5% but increases power consumption by 20% it may be more advantageous to simply run the entire application on the front-end.06-20-2013
20130159744ADAPTIVE RECOVERY FOR PARALLEL REACTIVE POWER THROTTLING - Power throttling may be used to conserve power and reduce heat in a parallel computing environment. Compute nodes in the parallel computing environment may be organized into groups based on, for example, whether they execute tasks of the same job or receive power from the same converter. Once one of compute nodes in the group detects that a parameter (i.e., temperature, current, power consumption, etc.) has exceeded a first threshold, power throttling on all the nodes in the group may be activated. However, before deactivating power throttling, a plurality of parameters associated with the group of compute nodes may be monitored to ensure they are all below a second threshold. If so, the power throttling for all of the compute nodes is deactivated.06-20-2013
20130159743IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREFOR AND STORAGE MEDIUM - A second control unit in an image processing apparatus receives a packet transmitted from an external apparatus, copies and stores the received packet, analyzes the header of the received packet, deletes the analyzed header, and, when transitioning the image processing apparatus from a second power mode to a first power mode based on the result of analysis in the case where the image processing apparatus is in the second power mode, transitions the image processing apparatus from the second power mode to the first power mode, and transfers to the first control unit the received packet that was stored and does not transfer to the first control unit the received packet from which the header was deleted.06-20-2013
20130159742Method, System, and Apparatus for Dynamic Thermal Management - A method, apparatus, article of manufacture, and system, the method including, in some embodiments, processing a computational load by a first core of a multi-core processor, and dynamically distributing at least a portion of the computational load to a second core of the multi-core processor to reduce a power density of the multi-core processor for the processing of the computational load.06-20-2013
20130159741Method, Apparatus, and System for Energy Efficiency and Energy Conservation Including Power and Performance Balancing Between Multiple Processing Elements and/or a Communication Bus - An apparatus, method and system is described herein for efficiently balancing performance and power between processing elements based on measured workloads. If a workload of a processing element indicates that it is a bottleneck, then its performance may be increased. However, if a platform or integrated circuit including the processing element is already operating at a power or thermal limit, the increase in performance is counterbalanced by a reduction or cap in another processing elements performance to maintain compliance with the power or thermal limit. As a result, bottlenecks are identified and alleviated by balancing power allocation, even when multiple processing elements are operating at a power or thermal limit.06-20-2013
20130159740ELECTRONIC DEVICE AND METHOD FOR ENERGY EFFICIENT STATUS DETERMINATION - The invention relates to an electronic device and a method for event handling in an electronic device comprising a bus master and a memory for storing a software program. A status of a software and/or hardware module is polled in a polling loop.06-20-2013
20130159739Power Controller, Processor and Method of Power Management - A processor includes a plurality of exclusive resources, a shared resource, and a controller configured to manage power state transitions of each of the plurality of exclusive resources and the shared resource. The controller receives a request from a resource to transition from a first power state to a lower power state and, in response to receiving the request, the controller controls power state transitions of the resource according to a first power control threshold when the resource is one of the plurality of exclusive resources and according to a second power control threshold that is greater than the first power control threshold when the resource is the shared resource.06-20-2013
20130185575SEMICONDUCTOR DEVICE FOR SUPPLYING POWER SUPPLY VOLTAGE TO SEMICONDUCTOR DEVICE - A semiconductor device includes first, second and third power supply terminals respectively supplied with first, second and third power supply voltages. The semiconductor device also includes a first terminal connectable to a host device and a second terminal connectable to a peripheral device. The semiconductor device also includes a first circuit block connected to the first terminal and the first power supply terminal and receiving data output from the host device based on the first power supply voltage, a second circuit block connected to the second terminal and the third power supply terminal and receiving data output from the peripheral device based on the third power supply voltage, and a third circuit block connected to the second power supply terminal and controlling operation of the first circuit block and the second circuit block based on the second power supply voltage.07-18-2013
20130185576POWER PROFILING APPLICATION FOR MANAGING POWER ALLOCATION IN AN INFORMATION HANDLING SYSTEM - A method, system, and software instructions for allocating power in a information handling system are operable to respond to a power profiling request by transitioning a processing resource to a first power consumption state and obtaining and storing a first power consumption value. The first power consumption value is then retrieved and used to allocate power to the first processing resource in response to a power on request. The first power consumption state may be a state in which power consumption approximates a maximum power consumption. The processing resource may be further transitioned to a second power consumption state and a second power consumption value obtained. The second power consumption state may be a reduced performance state. Thereafter, responsive to determining that the system lacks sufficient power budget to fulfill a pending request for power, the processing resource is throttled and power is allocated using the second power consumption value.07-18-2013
20130185572METHOD AND APPARATUS FOR ACHIEVING ENERGY SAVING OF DATA SWITCHING DEVICE - Embodiments of the present disclosure provide a method and an apparatus for achieving energy saving of a data switching device. The apparatus acquires a working model, where the working model includes correspondence between a working mode and time within a working cycle of the data switching device, the working mode can identify a bandwidth capacity in the working mode, and controls a data processing module in the data switching device to work according to the working model, so that the data processing module works under a bandwidth capacity identified by a corresponding working mode at the time. In the technical solutions of the embodiments of the present disclosure, the power consumption of the data processing module in the data switching device can be reduced in the idle time period, thereby effectively achieving energy saving.07-18-2013
20110314311COMMUNICATION CONTROL DEVICE, COMMUNICATION CONTROL METHOD, AND COMPUTER READABLE MEDIUM - A communication control device capable of performing data communication with an information processing device connected through a network, for performing data communication corresponding to a command from an application part which requests data communication with the information processing device, comprises: a communication control part for outputting response information obtained through the data communication corresponding to the command from the application part; and a virtually response part and for generating virtual response information, containing information as to the information processing device, responding to the command from the application part. The communication control part manages registration information including at least one command for requesting virtual data communication performed hypothetically with the virtually response part registered. The communication control part obtains the virtual response information from the virtually response part and outputs to the application part when the command received from the application part is registered in the registration information.12-22-2011
20110314310Low-Power Data Loop Recorder - A system and method are disclosed for capturing pre- and post-event data for random events using minimum power. Real-time data is captured and stored in a continuous loop in a segment of a first memory. Upon detection of a designated event, a second memory is powered-on and post-event data is stored to a segment of the second memory. After a designated data capture window, the second memory is powered-off and real-time data is captured in an unused segment of the first memory. The post-event data may be captured in the unused segment of the first memory and later transferred to the second memory. Auto-address logic monitors and controls the storage and retrieval of pre- and post-event in the first and second memory. An energy management system determines and controls which segments of the first and second memory should be powered-on or kept in the stasis mode to store event data.12-22-2011
20130191662POWER MANAGEMENT FOR ELECTRONIC DEVICES - A method for modifying one or more characteristics of a mobile electronic device in order to save or reduce power consumption of the device. The method includes determining by, a processor of the mobile electronic device, an estimated use of the mobile electronic device during an upcoming time period; using the estimated use, determining, by the processor, whether an internal power source of the mobile electronic device has sufficient power to continue operation of the mobile electronic device in a first state during the upcoming time period; based on the estimated use and the internal power source, if the internal power source does not have sufficient power, adjusting the one or more characteristics to reduce a power consumption of the mobile electronic device during the upcoming time period.07-25-2013
20130191663SYSTEM AND METHOD TO CONSERVE POWER IN AN ACCESS NETWORK WITHOUT LOSS OF SERVICE QUALITY - A method is provided in one example embodiment and includes receiving a first data at a first network element; determining that the first data does not match an entry in an access control list; and sending a first message to a second network element that causes the second network element to enter into a low-power state. In yet another example embodiment, the method can include receiving a second data; determining that the second data matches an entry in the access control list; buffering the second data; sending a second message to the second network element, where the second message causes the second network element to exit the low-power state; and sending the buffered second data to the second network element.07-25-2013
20130191664Managing Server Power Consumption In A Data Center - Methods, system, and computer program products are provided for managing server power consumption in a data center. Embodiments include detecting, by a circuit monitoring interposer, a type of a power circuit that is currently coupled to the circuit monitoring interposer; determining a power capacity of the power circuit based on the type of the power circuit; receiving, by the circuit monitoring interposer, a power consumption server measurement from each server monitoring interposer of a plurality of server monitoring interposers, each power consumption server measurement corresponding to a server of the plurality of servers; determining a total power consumption of the power circuit in dependence upon a total of the power consumption server measurements; and determining whether the total power consumption exceeds the power capacity, and if the total power consumption of the power circuit exceeds the power capacity, instructing one or more servers to reduce their power consumption.07-25-2013
20110320836Apparatus and Method of Managing Consumption in the Apparatus - An apparatus (12-29-2011
20120290863Budget-Based Power Consumption For Application Execution On A Plurality Of Compute Nodes - Methods, apparatus, and products are disclosed for budget-based power consumption for application execution on a plurality of compute nodes that include: assigning an execution priority to each of one or more applications; executing, on the plurality of compute nodes, the applications according to the execution priorities assigned to the applications at an initial power level provided to the compute nodes until a predetermined power consumption threshold is reached; and applying, upon reaching the predetermined power consumption threshold, one or more power conservation actions to reduce power consumption of the plurality of compute nodes during execution of the applications.11-15-2012
20120290862OPTIMIZING ENERGY CONSUMPTION UTILIZED FOR WORKLOAD PROCESSING IN A NETWORKED COMPUTING ENVIRONMENT - Embodiments of the present invention provide an approach for optimizing energy consumption utilized for workload processing in a networked computing environment (e.g., a cloud computing environment). Specifically, when a workload is received, an energy profile (e.g., contained in a computerized data structure) associated with the workload is identified. Typically, the energy profile identifies a set of computing resources needed to process the workload (e.g., storage requirements, server requirements, processing requirements, network bandwidth requirements, etc.), energy consumption attributes of the set of computing resources, and a proposed duration of the workload. Based on the information contained in the energy profile (and resource availability) a schedule (e.g., time, location, etc.) for processing the workload will be determined so as to optimize energy consumption associated with the processing of the workload. In a typical embodiment, the schedule will be determined such that a total cost for processing the workload can be minimized and/or to any budgeted amount/costs can be met.11-15-2012
20120290861Power Saving Method and Apparatus thereof - At startup of an apparatus including a memory and an operating device, an operating system is loaded to the memory as an operating system. While an idle time of the operating device exceeds a predetermined time, the loaded operating system cuts power to the operating device so that the operating device can be completely shut down. As a result, power consumption of the operating device is significantly reduced.11-15-2012
20120005504STORAGE SYSTEM COMPRISING FUNCTION FOR REDUCING POWER CONSUMPTION - For at least one of storage unit, processor and cache memory which are I/O process-participating devices related to I/O command process, when a load of one or more I/O process-participating devices or a part thereof is a low load equal to or less than a predetermined threshold value, a processing related to a state of one or more of the I/O process-participating devices or a part thereof is redirected to another one or more I/O process-participating devices or a part thereof, and the state of the one or more I/O process-participating devices or a part thereof is shifted to a power-saving state.01-05-2012
20120017103ELECTRICALLY ISOLATING A SYSTEM FROM AN EXTERNAL POWER SOURCE - A system includes a power supply and a power switch to connect an external power source that is external to the system to the power supply. The power switch has an on position and an off position. The power switch if actuated to the off position causes the system to be electrically isolated from the external power source. A control circuit is responsive to actuation of the power switch to provide a signal to cause software control of a power state of the system.01-19-2012
20120030487INFORMATION PROCESSING APPARATUS AND POWER CONTROL METHOD - According to one embodiment, an information processing apparatus includes a first circuit, a second circuit, and a controller. The first circuit is configured to detect consumed power of the information processing apparatus. The second circuit is configured to supply power received from a battery or an external power supply device, to a component in the information processing apparatus. The controller is configured to control the second circuit to receive the power from both of the battery and the external power supply device when the consumed power detected by the first circuit is higher than a capacity of the external power supply device.02-02-2012
20120030486POWER MANAGEMENT SYSTEM FOR WIRELESS AUTONOMOUS TRANSDUCER SOLUTIONS - An autonomous transducer system is disclosed. In one aspect, the system includes an energy scavenging module, energy storage module, a load circuit having at least one functional block providing a given functionality, and a power management module arranged for providing power supplied by the energy scavenging module to the load circuit or for exchanging power with the energy storage module. The power management module may further include a tuning module configured to tune the at least one functional block of the load circuit according to a given configuration scheme.02-02-2012
20130198540Dynamic Power Management in Real Time Systems - Dynamically reducing power consumption by a processor in a computer system by determining a maximum number of times (token count) that the processor can incur a start-up delay after being placed into a low-power mode during a token period of time when executing a task for a token period of time. The processor may be placed into the low-power mode while executing the task in response to an idle indicator only if a current value of the token count assigned to the task is greater than zero. The current value of the token count is decremented each time the processor incurs a start-up delay in response to being awakened from the low-power mode. The current token count is reset to match the assigned token count at the end of each token period. Furthermore, wakeup may be anticipated to allow the processor to be awakened preemptively.08-01-2013
20130198541System and Method For Battery Load Management In A Portable Computing Device - Various embodiments of methods and systems for managing battery load in a portable computing device (“PCD”) are disclosed. One such method includes tracking an active load on a battery attributable to one or more active power consuming components. Measurements associated with the battery and indicative of the battery's state of health may also be monitored. When a call for additional load on the battery is recognized, such as a user request for provision of additional functionality in the PCD, a future load on the battery that considers the newly called load can be calculated. Based on an analysis of the impact on the battery's state of health, existing, lower priority loads may be scaled or suspended to create battery load capacity for the newly called load. In this way, quality of service and user experience may be optimized while minimizing conditions that could be detrimental to the battery.08-01-2013
20120042182FORCED IDLE CACHE - An interface controller of an electronic device manages power consumption of the electronic device by caching data associated with write commands received while the electronic device is in an idle mode. In one implementation, an interface controller directs write commands to a write cache until disc access is required. Additionally, the interface controller may direct write commands to the write cache until the write cache becomes full or a non-cached read command is received. Once, disc access is required, the data associated with the cached commands are flushed to the hard disc. In one implementation, the interface controller transitions the electronic device to a lower power state and maintains the electronic device in the lower power state until disc access is required. When disc access is required, the interface controller transitions the electronic device to a higher power state.02-16-2012
20120066526SYSTEM AND METHOD FOR DETERMINING OPTIMAL OPERATING PARAMETERS FOR CONSERVING POWER OF A PORTABLE COMPUTING DEVICE - A method and system for determining optimal operating parameters for conserving power of a portable computing device may include plotting a hypersurface in a coordinate system. The method includes defining one or more axes in a coordinate system, such as a Cartesian coordinate system, that impact power consumption of a PCD and which may be held as constants when applied as workloads on CPU. Then, at least one axis is identified as an unknown or variable which may be optimized for power consumption. After the hypersurface containing optimized values is created for various workload scenarios for the PCD, workloads corresponding to the synthetic workloads described above are applied to the PCD. Workload predictors, like a DCVS algorithm, are executed by the PCD and are observed and compared to the hypersurface. Parameters for the workload predictor may be adjusted based on the values from the hypersurface.03-15-2012
20130205144LIMITATION OF LEAKAGE POWER VIA DYNAMIC ENABLEMENT OF EXECUTION UNITS TO ACCOMMODATE VARYING PERFORMANCE DEMANDS - In an embodiment, a method of controlling performance of a processor having a first execution unit and a second execution unit includes maintaining an operational state of the first execution unit of the processor at active, monitoring a utilization of the processor, and based on the utilization, determining whether to alter the operational state of the second execution unit of the processor. When the utilization of the processor is below a first threshold and the performance capability of the second execution unit is less than the performance capability of the first execution unit, the system may change the operational state of the second execution unit of the processor to active, and the operational state of the first execution unit to inactive. When the utilization of the processor is above a second threshold, the system may change the operational state of the second execution unit of the processor to active.08-08-2013
20130205143AUTONOMOUS MICROPROCESSOR RE-CONFIGURABILITY VIA POWER GATING PIPELINED EXECUTION UNITS USING STATIC PROFILING - In an embodiment, a method of controlling a functional unit of a target processor includes, using a static code profiler operating on a developer processor and while generating a machine executable instruction from software code, determining whether a functional unit type will be used to perform a process of the machine executable instruction. The method also includes updating a specific needs profile of the process of the machine executable instruction in accordance with the output of the static code profiler, wherein operation of the functional unit having the functional unit type is based on the configuration of the specific needs profile. The method further includes storing the specific needs profile in a configuration register. One or more processes and/or specific needs values or profiles may be loaded at each context switch of the operating system.08-08-2013
20130205145METHOD FOR OPERATING A BUS CONTROL UNIT AND BUS CONTROL UNIT - A watchdog function is performed for those messages which are used by a controller in a CAN bus to keep the other controllers active. All emitted keep-active messages are read again by the emitting controller itself and are checked for the presence of a reason. In the absence of such a reason, a restart is carried out.08-08-2013
20080209243Scheduling processor voltages and frequencies based on performance prediction and power constraints - A power management system schedules the voltage and frequency of processors in a data processing system based on two criteria. The first criterion is a prediction of the performance that the work currently running on the processor will experience at the different frequencies that are available. The second criterion is a system-wide constraint on the total power budget allocated to processors. Based on these criteria, low-level code sets the frequency and voltage of the processors in the system to match what the operating system is currently running on them.08-28-2008
20120303985State retention circuit adapted to allow its state integrity to be verified - A state retention component is provided which is configured to form part of data processing circuitry. The state retention component is configured to hold a state value at a node of the data processing circuitry when the data processing circuitry enters a low power mode. The state retention component comprises a scan input, wherein the state retention component configured, when a scan enable signal is asserted, to read in the state value from a scan input value applied at the scan input, and a scan output, wherein the state retention component is configured, when the scan enable signal is asserted, to read out the state value to the scan output. When the scan enable signal is not asserted, the state retention circuit outputs at the scan output a parity value, wherein the parity value is generated by combinatorial function circuitry on the basis of the state value and the scan input value, wherein the combinatorial function circuitry is configured such that the parity value inverts if either the state value or the scan input value changes, thus providing an external indication of the integrity of the state value held by the state retention component.11-29-2012
20120084584POWER MANAGEMENT METHOD AND APPARATUS - A power management method in a user terminal receives a power from a power supply unit to charge a system voltage, compares the system voltage with a preset voltage, and controls a power input from the power supply unit according to the comparison result.04-05-2012
20120096290Distributed Architecture for Situation Aware Sensory Application - Embodiments of the invention relate to a distributed signal processing system and a method for processing a sensor signal for a mobile device. Raw signal data is received and pre-processed by a processor to filter and split the data signal into multiple data outputs. The split signal data represent both spatial and spectral components, and/or statistical properties pertaining to the sensor. Low rate processing data is communicated to a second processor for limited data processing by select logic components.04-19-2012
20120096289STORAGE APPARATUS AND POWER CONTROL METHOD - To enable power saving control by putting storage areas of the same attribute together in a specific RAID group in a storage apparatus that includes storage areas of different access patterns.04-19-2012
20120096288CONTROLLING OPERATION OF TEMPERATURE SENSORS - Techniques are disclosed relating to controlling power consumption of temperature sensors in integrated circuits. In one embodiment, an integrated circuit is disclosed that includes a temperature sensor that is configured to determine a temperature of the integrated circuit. The integrated circuit also includes a sensor controller that is configured to vary power consumption of the temperature sensor based, at least in part, on the determined temperature. In some embodiments, the integrated circuit may determine a sampling rate of the temperature sensor based, at least in part, on the determined temperature and a temperature threshold of the integrated circuit. The integrated circuit may then vary the power consumption of the temperature sensor by periodically disabling the temperature sensor based on the determined sampling rate. In some embodiments, the integrated circuit may also vary the power consumption of the temperature sensor based on the operating state of one or more processing cores in the integrated circuit.04-19-2012
20130212414REDUCING PERFORMANCE DEGRADATION IN BACKUP SEMICONDUCTOR CHIPS - A system has at least a first circuit portion and a second circuit portion. The first circuit portion is operated at normal AC frequency. The second circuit portion is operated in a back-up mode at low AC frequency, such that the second circuit portion can rapidly come-online but has limited temperature bias instability degradation. The second circuit portion can then be brought on-line and operated at the normal AC frequency. A system including first and second circuit portions and a control unit, as well as a computer program product, are also provided.08-15-2013