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Active/idle mode processing

Subclass of:

713 - Electrical computers and digital processing systems: support

713300000 - COMPUTER POWER CONTROL

713320000 - Power conservation

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DocumentTitleDate
20110185208MEMORY POWER REDUCTION IN A SLEEP STATE - A data processing system that uses memory power reduction in a sleep state. The system can include a volatile memory and at least one data input peripheral and a logic circuit that is configured to manage power consumption of the data processing system for a sleep of the system. The logic circuit can be coupled to the volatile memory and can be configured to turn off power to the volatile memory in response to an event, occurring during the sleep state, but to otherwise remain in the sleep state. The sleep state can be an ACPI complaint S3 sleep state in which the volatile memory, such as DRAM, is powered off after a period of user inactivity during the S3 sleep state.07-28-2011
20120204047APPARATUS AND METHODS FOR PROCESSOR POWER SUPPLY VOLTAGE CONTROL USING PROCESSOR FEEDBACK - Methods of operating an integrated circuit include determining a difference between a reference level and a level of a power supply voltage at a processor circuit of the integrated circuit, generating a digital code responsive to the determined difference and transmitting the digital code to a power management integrated circuit that provides power to the integrated circuit. The power management integrated circuit may adjust the power supply voltage responsive to the transmitted code. Integrated circuits and data processing systems are also provided.08-09-2012
20130047019DATA PROCESSING APPARATUS AND CONTROL METHOD THEREFOR - When a data processing apparatus according to this invention detects generation of an event to shift from the standby state to the suspended state, it saves the contents of a memory in the standby state in a non-volatile storage device in response to detection of generation of the event, and shifts to the suspended state. When power-off is instructed in the suspended state, the data processing apparatus shifts from the suspended state to the power-off state without the mediacy of the standby state.02-21-2013
20090193275Quick-Stop Feature For Multiple Output Power Systems - A quick-stop feature built into power systems enables deactivating the power output of output supplies in the shortest possible time. This feature prevents damage to the power system and to the electrical devices connected to the output supplies. The quick-stop feature can be implemented as a hardware or a software solution. A button on the front panel of the power system can initiate the quick-stop feature. Alternatively, the power system can be connected to a network to watch over and provide fault protection mechanisms. A processor within the power system can execute the quick-stop feature by deactivating the power output. Deactivating the power output can follow a programmed shutdown, a sequenced shutdown or a complete shutdown. Downprogrammers ensure deactivating the power output in the shortest time.07-30-2009
20130031395IMAGE PROCESSING APPARATUS, COMMUNICATION METHOD THEREFOR, AND RECORDING MEDIUM - An image processing apparatus being configured to support a power-saving mode which allows achieving low power consumption while keeping an idle connection without communication between the image processing apparatus and a communication device in a network environment, comprises: a first judgment portion which judges whether or not the communication device supports the power-saving mode; and a communicator which establishes a connection to the communication device at a first communication rate if the first judgment portion judges that the communication device does not support the power-saving mode, at a second communication rate which is faster than the first communication rate if the first judgment portion judges that the communication device supports the power-saving mode.01-31-2013
20130031394IMAGE FORMING APPARATUS FOR FORMING IMAGE ON SHEET - The power supply unit supplies operating power for operating the image forming unit and the first communication interface. The setting control unit stores continuation setting information in the storage unit when a setting condition set in advance is satisfied. The power control unit causes the power supply unit to continue to supply operating power to the first communication interface if the continuation setting information is stored in the storage unit in a sleep mode and causes the power supply unit to stop the supply of the operating power to the first communication interface unless the continuation setting information is stored in the storage unit in the sleep mode. The switching control unit causes the power control unit to perform a normal mode when the first communication interface obtains first communication-related information in the sleep mode.01-31-2013
20130031393INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD AND RECORDING MEDIUM - An information processing apparatus includes a control unit to control the apparatus, a power supplying control unit to control power supply and a stop of the power supply to the control unit, a receiving unit to receive data from outside, and a response unit to generate and send first response data with respect to first received data received by the receiving unit while the power supply to the control unit is stopped, when the response unit verifies the first received data are predetermined data capable of being responded to by the response unit. The control unit includes a unit to send an instruction to make the power supplying control unit stop the power supply to the control unit, in a predetermined condition while the power is supplied to the control unit.01-31-2013
20130031392USB DEVICE SIDE WAKE-UP FOR POWER CONSERVATION AND MANAGEMENT - In a system in which a host device is in communication with a peripheral device through communications device connected to a USB port, the USB host device polls the communications device to constantly regardless of the power state of the USB communications device. While in the low power mode, the USB communications device generates NAK packets, indicating that the device has no data to send. The NAK packets are generated in hardware, thereby allowing the USB host continues operating while unaware of the state of the peripheral device. External events can be used to trigger the USB communications device to exit the low power state without communicating with the USB host, and without the USB host altering its behavior.01-31-2013
20130212418ELECTRONIC DEVICE, IMAGE PROCESSING APPARATUS, AND DEVICE CONTROL METHOD - According to an embodiment, provided is an electronic device that includes: an energy generation unit that generates electrical power; an accumulating unit that accumulates therein the electrical power generated by the energy generation unit; and a network control unit that includes: a first function unit that performs network response processing; a second function unit that performs network response processing with a relatively smaller processing load than the network response processing performed by the first function unit; and a third function unit that controls the electrical power supply to the function units. The third function unit stops the electrical power supply to the first function unit in a predetermined standby operation mode that is standby for a network response request, and supplies the electrical power to the second function unit directly from the energy generation unit bypassing the accumulating unit.08-15-2013
20130212417POWER MANAGEMENT WITH DYNAMIC FREQUENCY ADJUSTMENTS - A central processing unit (CPU) can specify an initial (e.g., baseline) frequency for a clock signal used by a device to perform a task. The CPU is then placed in a reduced power mode. The device performs the task after the CPU is placed in the reduced power mode until a triggering event causes the device to send an interrupt to the CPU. In response to the interrupt, the CPU awakens to dynamically adjust the clock frequency. If the clock frequency is reset to the baseline value, then the CPU is again placed in the reduced power mode.08-15-2013
20110202782ARCHITECTURE INCORPORATING CONFIGURABLE CONTROLLER FOR REDUCING ON CHIP POWER LEAKAGE - The present invention provides a method and system for controlling leakage power consumption at a System on Chip (SoC) level during a normal run or a boot-up mode. The leakage power reduction is achieved by incorporating a central programmable controller in the SoC architecture and test structures of idle SoC peripherals to place them into an Absolute Minimum Power consumption state with respect to static and dynamic power.08-18-2011
20110202781System and Method for Loop Timing Update of Energy Efficient Physical Layer Devices Using Subset Communication Techniques - A system and method for loop timing update of energy efficient physical layer devices using subset communication techniques. During a quiet period during which a subset of communication channels are transitioned from an active mode to a low-power mode, circuitry in the active channel can be designed to track, on behalf of the inactive channels, the phase drift due to the frequency offset. This tracking of the frequency estimation error would reduce the time required to perform a timing update for the communication channels when transitioning back to the active mode.08-18-2011
20120246501CONTROLLER AND PROGRAM PRODUCT - According to one embodiment, a controller includes a state detecting unit, a calculating unit, and a determining unit. The state detecting unit detects an idle state in which indicates there are no process that can execute on a processing device capable of performing one or more processes. The calculating unit calculates a resuming time, which indicates a time length until the next process starts, when the state detecting unit detects the idle state. The determining unit determines an operation mode of the processing device on the basis of the resuming time calculated by the calculating unit.09-27-2012
20120246500COMPUTER POWER SAVING SYSTEM - A computer power saving system includes a computer, an UPS, a power detecting device, and an USB device. The computer includes a USB port and a power management module, and can work in a normal mode or in a STR mode. The UPS is connected to the computer and used for supplying power to the computer upon a condition that a commercial power supply stops supplying power to the computer. The power detecting device detects the state of the commercial power supply and sending out an abnormal power signal when the commercial power supply stops supplying power to the computer. The USB device sends the abnormal power signal to the USB port. When the computer works in the normal mode, the power management module detects the USB port, and controls the computer to shift to the STR mode if the USB port receives the abnormal power signal.09-27-2012
20100077243CONSERVING POWER IN A COMPUTER SYSTEM - A power management unit (PMU) may determine an optimal power saving state using a break-even period of a power saving state and an expected idle duration based on a first policy. The PMU may determine the optimal power saving state using a first break even period and actual idle duration based on a second policy. The break-even period may equal a minimum time a computer system should remain in a power saving state to compensate for the power consumed by the system to enter and exit that power saving state. The expected idle time duration is determined as an average of idle duration and a recent sample of idle duration. The actual idle duration is the difference of a first and second time point that represents entry and exit points to and from the power saving state. The PMU may transition the system to the optimal power saving state.03-25-2010
20100115316METHOD AND SYSTEM FOR MANAGING ENERGY EFFICIENCY OF A NETWORK LINK VIA PLUGGABLE TRANSCEIVER MODULES IN AN ENERGY EFFICIENT NETWORK DEVICE - An Ethernet network may comprise link partners that may be coupled via an Ethernet link. The link partners may comprise pluggable PHY devices. The pluggable PHY devices and/or other link partner devices may determine energy efficient network (EEN) control policies, may select a power level mode and may configure the link partners to operate in the power level mode. Some components may be reconfigured prior to sending an energy efficient network control signal to a link partner and configuring remaining components. Hardware, software and/or firmware may execute the pluggable PHY energy efficient network control policies. Packet data pending delivery may be buffered in the pluggable PHY. The pluggable PHY devices may comprise a MAC and/or a SERDES device. Exemplary form factors for the pluggable PHYs may comprise a SFP, a SFP+, a XENPAK, a X2, a XFP and/or a XPAK. Low power idle mode and/or sub-rate mode may be utilized.05-06-2010
20100115315ESTABLISHING POWER SAVE MODE IN HYPERVISOR SYSTEM - A hypervisor intercepts a reduced power mode call from a guest operating system (GOS) and executes reduced power scripts, prior to passing control back to BIOS for entry into the reduced power mode.05-06-2010
20130031396POWER SUPPLY SYSTEM, IMAGE FORMING APPARATUS HAVING THE SAME, AND LOW-CAPACITY POWER SUPPLY CIRCUIT - A power supply system includes: a switching power supply, which rectifies and smoothes an AC voltage of an AC power supply to generate a first DC voltage in a normal mode; a control unit, which controls the switching power supply to switch between the normal mode and a power saving mode; and a low-capacity power supply circuit, which supplies power to the control unit in the power saving mode, and which includes: a first capacitor, which includes a first electrode connected to one end of the AC power supply, and a second electrode; a second capacitor, which includes a first electrode connected to the other end of the AC power supply, and a second electrode; a rectifying circuit, which rectify an AC voltage applied to both capacitors; and a smoothing circuit, which smoothes the rectified AC voltage to generate a smooth voltage.01-31-2013
20130080811Low Power Input Device - An input device for an electronic device. The input device includes a power source, a processor in communication with the power source. Additionally, the input device includes a main sensor in communication with processor and configured to detect a user input and an auxiliary sensor in communication with the processor and configured to detect a user input. When the input device is in a normal power mode or active state, the main sensor is activated and when the input device is in a low power state the main sensor is deactivate and the auxiliary sensor is activated.03-28-2013
20130185580INSTRUCTION FOR ENABLING A PROCESOR WAIT STATE - In one embodiment, the present invention includes a processor having a core with decode logic to decode an instruction prescribing an identification of a location to be monitored and a timer value, and a timer coupled to the decode logic to perform a count with respect to the timer value. The processor may further include a power management unit coupled to the core to determine a type of a low power state based at least in part on the timer value and cause the processor to enter the low power state responsive to the determination. Other embodiments are described and claimed.07-18-2013
20100037075DUAL VOLTAGE SWITCHING CIRCUIT - A dual voltage switching circuit includes a first resistor and two transistors. Each transistor has a first terminal, a second terminal, and a third terminal. The first terminals are connected to a control terminal of a computer. The second terminals are connected to a standby power supply of the computer. The third terminals are connected to a power-on terminal of the computer via the first resistor. When the first terminals receive a low level signal from the control terminal, the first and second transistors are on, and the power-on terminal receives a voltage form the standby power supply via the first resistor.02-11-2010
20130036320IMAGE FORMING APPARATUS, FEEDING CONTROL METHOD, AND COMPUTER PROGRAM PRODUCT - An image forming apparatus includes a main power supply configured to feed power to components of the image forming apparatus; a secondary battery configured to be charged with power from the main power supply or a solar battery; a secondary battery deterioration detector configured to monitors a charging voltage drop of the secondary battery and to detect deterioration of the secondary battery; a secondary battery charge unit configured to charge the secondary battery when the secondary battery deterioration detector detects deterioration of the secondary battery in an energy-saving mode; and an energy-saving mode control unit configured to switch a power source for the image forming apparatus from the secondary battery to the main power supply to continue in the energy-saving mode when the secondary battery deterioration detector detects deterioration of the secondary battery in the energy-saving mode.02-07-2013
20130036319IMAGE PROCESSING APPARATUS AND CONTROL METHOD FOR IMAGE PROCESSING APPARATUS - An image processing apparatus includes a first control unit configured to control the whole apparatus and not to be energized in a power saving mode; and a second control unit configured to be energized in the power saving mode. The second control unit includes a detecting unit configured to detect a return trigger for returning from the power saving mode to a normal mode; an identifying unit configured to identify the return trigger; a storage unit configured to store the identified return trigger into a storage medium; and a starting unit configured to start energizing the first control unit in accordance with the detection of the return trigger. The first control unit includes a reading unit configured to read the stored return trigger after the first control unit is energized; and a first-control-unit control unit configured to determine a function to be activated preferentially based on the return trigger.02-07-2013
20130042131SUSPENSION AND/OR THROTTLING OF PROCESSES FOR CONNECTED STANDBY - One or more techniques and/or systems are provided for assigning power management classifications to a process, transitioning a computing environment into a connected standby state based upon power management classifications assigned to processes, and transitioning the computing environment from the connected standby state to an execution state. That is, power management classifications, such as exempt, throttle, and/or suspend, may be assigned to processes based upon various factors, such as whether a process provides desired functionality and/or whether the process provides functionality relied upon for basic operation of the computing environment. In this way, the computing environment may be transitioned into a low power connected standby state that may continue executing desired functionality, while reducing power consumption by suspending and/or throttling other functionality. Because some functionality may still execute, the computing environment may transition into the execution state in a responsive manner to quickly provide a user with up-to-date information.02-14-2013
20130042130CIRCUITS AND METHODS FOR CONTROLLING BATTERY MANAGEMENT SYSTEMS - A controller for a battery management system includes a first terminal, a second terminal, and communication circuitry. The first terminal receives power from a battery in the battery management system. The second terminal receives a clock signal. The communication circuitry coupled to the first and second terminals detects the clock signal, and generates a first switching signal according to a result of detecting the clock signal to control the battery management system to switch from operating in a ship mode to operating in a non-ship mode according to the first switching signal. The detecting and generating are performed with the battery management system in the ship mode. The battery management system disables controlling of charging and discharging of the battery in the ship mode, and the battery management system enables controlling of charging and discharging of the battery in the non-ship mode.02-14-2013
20130042129IMAGE FORMING APPARATUS, MICROCONTROLLER, AND METHODS FOR CONTROLLING IMAGE FORMING APPARATUS AND MICROCONTROLLER - An image forming apparatus, a microcontroller, and methods for controlling the image forming apparatus and the microcontroller are provided. The microcontroller include: a memory controller which is connected to an external memory operating in a self-refresh mode if a normal mode changes to a low power mode and outputs a preset signal which is to cancel the self-refresh mode if the low power mode changes to the normal mode; a memory interface unit which transmits the preset signal to a main memory; and a signal detector which detects whether the preset signal has been output. Here, the memory controller powers off the memory interface unit if the normal mode changes to the low power mode and powers on the memory interface unit if the low power mode changes to the normal mode, and the output of the preset signal is detected by the signal detector.02-14-2013
20130042128SUSPENSION AND/OR THROTTLING OF PROCESSES FOR CONNECTED STANDBY - One or more techniques and/or systems are provided for assigning power management classifications to a process, transitioning a computing environment into a connected standby state based upon power management classifications assigned to processes, and transitioning the computing environment from the connected standby state to an execution state. That is, power management classifications, such as exempt, throttle, and/or suspend, may be assigned to processes based upon various factors, such as whether a process provides desired functionality and/or whether the process provides functionality relied upon for basic operation of the computing environment. In this way, the computing environment may be transitioned into a low power connected standby state that may continue executing desired functionality, while reducing power consumption by suspending and/or throttling other functionality. Because some functionality may still execute, the computing environment may transition into the execution state in a responsive manner to quickly provide a user with up-to-date information.02-14-2013
20130042127IDLE POWER REDUCTION FOR MEMORY SUBSYSTEMS - Embodiments of the invention describe systems and processes directed towards reducing memory subsystem idle power consumption. Embodiments of the invention enable low power states for various components of a memory subsystem under certain operating conditions, and exiting said low power states under certain operating conditions.02-14-2013
20100100754AUTOMATIC POWER-UP OF PORTABLE ELECTRONIC DEVICE BASED ON TIME-DEPENDENT EVENT - A method of controlling a portable electronic device includes receiving a power-down command, determining an automatic power-up date and time based on an earliest one of a next preset power-up and a next time-dependent event reminder, entering a power-down state, monitoring a date and time, and automatically powering up at the automatic power-up date and time.04-22-2010
20090164818ACTIVITY WINDOW NOTIFICATION PROTOCOL - Power management protocols for maximizing energy efficiency in power usage by mobile devices are described in this application. The power management protocols may allow for at least two power states by a CPU—active state, and inactive state. The active state corresponds to an active window when the mobile device is functional at full capacity and using the full clock speed frequency. The inactive state and opportunistic flush and fill states may be maximized by coordinating the activity of the CPU and other devices associated with a mobile device such as a bus, memory, graphics controller, hard drive, etc. By coordinating the critical functions of devices and CPU to occur during the active window, and delaying non-critical functions until an active window, the inactive and off states may be maximized, resulting in power savings and efficiency. Other embodiments are also described in this application.06-25-2009
20100042859Computer having Power Saving State Control Function and Control Method Thereof - A computer has a plurality of sleeping modes to be switch directly. The power supply assemblies provide a plurality of power supplies to elements in the computer. The storage module is used to store executing data corresponding to each sleeping mode. The power management module is used to set the number of the power supply assemblies which need to be switched on in each sleeping mode. The control module determines the sleeping mode which is switched to according to a received trigger event and sends a first switching signal to the storage module to make the storage module store the executing data and a second switching signal to the power management module to make the power management module set the number of the power supply assemblies and switches the sleeping mode of the computer directly.02-18-2010
20100042858MANAGEMENT OF POWER DOMAINS IN AN INTEGRATED CIRCUIT - A method of operating a circuit, including operating in a first mode, wherein in the first mode, a first power domain operates in an active power mode and a second power domain operates in an active power mode, wherein in the first mode, a first set of at least one terminal of a first circuit of the first power domain are coupled to a second set of at least one terminal of a second circuit of the second power mode via an isolation circuit for providing signals from the first circuit to the second circuit, is provided. The method further includes operating the circuit in a second mode, wherein in the second mode, the first power domain operates in a power gated mode and a second power domain operates in an active power mode.02-18-2010
20090158069APPARATUS AND METHOD FOR POWER MANAGEMENT CONTROL - A power management control apparatus including a memory unit configured to store a program for disabling a previously determined Link power management state when a system enters a specific operating state and for enabling the disabled Link power management state when the system is resumed, a processor configured to access the memory unit and to execute the program, and a control unit connected to the processor and the memory unit and configured to manage Link power based on a result of executing the program.06-18-2009
20090158068REDUCING CORE WAKE-UP LATENCY IN A COMPUTER SYSTEM - A power control unit (PCU) may reduce the core wake-up latency in a computer system by concurrently waking-up the remaining cores after the first core is woken-up. The power control unit may detect arrival of a first, second, and a third interrupt directed at a first, second, and a third core. The power control unit may check whether the second interrupt occurs within a first period, wherein the first period is counted after waking-up of the first core is complete. The power control unit may then wake-up the second and the third core concurrently if the second interrupt occurs within the first period after the wake-up activity of the first core is complete. The first period may at least equal twice the time required for a first credit to be returned and next credit to be accepted.06-18-2009
20090158067SAVING POWER IN A COMPUTER SYSTEM - A power management unit (PMU) may promote a processing core from a working state to a first non-working power saving state after receiving a signal from an automatic core C-state promotion (ACCP) unit. An OS component may detect the idling of the processing core and may initiate the ACCP. The ACCP may initiate the PMU to promote the processing core to a first non-working power saving state. The ACCP may track the residency time of the processing core in the first non-working power saving state and may initiate the PMU to promote the processing core to a next non-working power saving state if residency time of the processing core in the first non-working power saving state exceeds a first value. The ACCP may initiate the PMU to demote the processing core back to the working state if a break event occurs during the residency time.06-18-2009
20100332881Gateway card, gateway device, method of controlling gateway card, and computer product - A gateway card is connected to an information processor, and receives and transmits data between different networks. The information processor has a normal power mode and a power saving mode. A switching unit connects a memory with the information processor if the information processor is in the normal power mode, or to the gateway card if the normal power mode of the information processor is changed to the power saving mode.12-30-2010
20100106993IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - An image forming apparatus and a control method thereof includes an image forming unit to form images, a main control unit to control operations of the image forming unit; a switching unit to selectively supply an operating voltage to the main control unit according to a level of the voltage control, a power mode selecting unit to convert an on state or an off state according to a user's operation, a first voltage determining unit to determine a level of the control voltage according to the state of the power mode selecting unit, and a second voltage determining unit to determine the level of the control voltage in parallel with the first voltage determining unit, according to the control signal output from the main control unit.04-29-2010
20100106992METHOD AND APPARATUS FOR DETECTING AN IDLE MODE OF PROCESSING EQUIPMENT - Methods and apparatus for detecting an idle mode of processing equipment are provided herein. In some embodiments, an apparatus for monitoring a processing system may include a first system adapter for monitoring a first process chamber and determining a state thereof; and a first support adapter for communicating with the first system adapter and a first support system coupled to the first process chamber, the support adapter configured to communicate a readiness to operate the first support system at a low power mode to a controller of the support system in response to the state of the first process chamber being in an idle mode.04-29-2010
20100106991SLAVE CIRCUIT OF A LIN BUS AND METHOD FOR OPERATION - A slave circuit of a LIN bus and method for operating a slave circuit is provided. The slave circuit includes a receiver circuit that is connected to the bus in order to output bit sequences as a function of a bus voltage, an interface circuit for controlling a sleep mode and a normal mode, a detector circuit for evaluating the bus voltage which is connected to the bus, a timer device that is connected to an output of the detector circuit and to the interface circuit. Whereby, the detector circuit, the timer device, and the interface circuit are designed to detect an exceedance of a time threshold by a waveform of the bus voltage of the bus, and to continue a sleep mode in the event of an exceedance, wherein the time threshold is greater than the duration of a wake-up command.04-29-2010
20100106990POWER SAVINGS USING DYNAMIC STORAGE CLUSTER MEMBERSHIP - A system for controlling power usage in a storage cluster by dynamically controlling membership in the storage cluster is disclosed. The storage cluster includes multiple storage servers that provide access to one or more storage subsystems. The power management system uses a power management policy to set parameters for controlling membership in the storage cluster and monitors the storage cluster based on the policy. Based on the monitoring, the system detects when the number of storage servers in the storage cluster should be reduced or increased. To reduce the number, the system selects a storage server to deactivate and directs the selected storage server to migrate storage resources (e.g. data, metadata) associated with the server to a different storage server. The system then deactivates the selected storage server by directing it to transition to a low power mode. The system may increase the number of servers in the storage cluster by reversing these steps.04-29-2010
20130047018POWER SUPPLY CONTROL CIRCUIT - A power supply control circuit for an electronic device includes an input/output (I/O) microchip, a southbridge microchip and a power management unit. The control circuit is electrically connected to the I/O microchip and the southbridge microchip to output a driving voltage to the I/O microchip and the southbridge microchip. The power management unit includes a power management microchip electrically connected to the control circuit, the I/O microchip and the southbridge microchip. The power management microchip outputs a power on/off control signal to the southbridge microchip to power on/off the electronic device, and controls the control circuit to provide a driving voltage to the I/O microchip and the southbridge microchip when the electronic device is powered on and controls the control circuit to stop providing the driving voltage to the I/O microchip and the southbridge microchip when the electronic device is powered off.02-21-2013
20120185716CONSERVING POWER BY REDUCING VOLTAGE SUPPLIED TO AN INSTRUCTION-PROCESSING PORTION OF A PROCESSOR - One embodiment of the present invention provides a system that facilitates reducing static power consumption of a processor. During operation, the system receives a signal indicating that instruction execution within the processor is to be temporarily halted. In response to this signal, the system halts an instruction-processing portion of the processor, and reduces the voltage supplied to the instruction-processing portion of the processor. Full voltage is maintained to a remaining portion of the processor, so that the remaining portion of the processor can continue to operate while the instruction-processing portion of the processor is in reduced power mode.07-19-2012
20090119527PORTABLE COMPUTER AND METHOD OF CONTROLLING POWER SAVING MODE OF PORTABLE COMPUTER - A portable computer and a method of controlling a power saving mode of the portable computer, in which an embedded controller directly turns off system power without system wake up operation in a process of turning off the system power or switching a power saving mode when battery power is decreased. The computer includes a control unit for notifying whether a power saving mode is a hybrid sleep mode when the portable computer enters the power saving mode; and an embedded controller for detecting whether the remaining amount of a battery decreases below a threshold value or a predetermined period of time has passed after the computer enters the power saving mode to perform hibernation or turn off system power, if the power saving mode notified from the control unit is the hybrid sleep mode.05-07-2009
20100095144INFORMATION PROCESSING UNIT, POWER-SAVING MANAGEMENT PROGRAM, AND STORAGE MEDIUM STORED WITH THE POWER-SAVING MANAGEMENT PROGRAM - An information processing unit having an auto power-off function includes: a mode setting means for setting one mode from a plurality of pre-prepared power-saving modes in conformity with input by a user, wherein the plurality of power-saving modes includes a first mode and a second mode, and the first mode and the second mode differ in electricity consumption reduction effectiveness; a determination means for determining whether a non-operated state in which no input operation has been carried out by the user has continued for a predetermined time or longer; a processing execution means for executing internal processing; and a decision means for deciding whether or not to execute the auto power-off function based on the mode set by the mode setting means and internal processing executed by the processing execution means when the determination means has determined that the non-operated state has continued for a predetermined time or longer. A storage medium stores a computer program for power-saving management. A power-saving management method includes a mode setting step, a determination step, a processing execution step, and a decision step.04-15-2010
20100095143INFORMATION PROCESSING APPARATUS, ACTIVATION METHOD, AND PROGRAM - The present invention relates to an information processing apparatus, an activation method, and a program which allow activation to be performed more quickly so as to enter a state according to a user's operation. A host CPU (04-15-2010
20120166849SYSTEMS AND METHODS FOR CONTROL OF INTEGRATED CIRCUITS COMPRISING BODY BIASING SYSTEMS - Systems and methods for control of integrated circuits comprising body-biasing systems. In accordance with a first embodiment of the present invention, a desirable power condition of a computer system comprising a microprocessor is determined. Body biasing voltage information corresponding to the power condition is accessed. A voltage supply coupled to a body terminal of the microprocessor is commanded to generate a voltage corresponding to the body biasing voltage information corresponding to the power condition.06-28-2012
20120166848ADAPTIVE NETWORK AND METHOD - A plurality of modules interact to form an adaptive network in which each module transmits and receives data signals indicative of the proximity of objects. A central computer accumulates the data produced or received and relayed by each module. One of the modules is operable as a leaf node having a sleep mode to conserve energy and an interactive mode. The central computer can send a message to the leaf node commanding it to stay awake in order to receive subsequent communications.06-28-2012
20120166844POWER 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.06-28-2012
20120166842THERMALLY DOWNWARD SCALABLE SYSTEM - An apparatus may comprise a power management system. Other embodiments are described and claimed.06-28-2012
20130047020REMOTE ACCESS AND ADMINISTRATION OF DEVICE CONTENT, WITH DEVICE POWER OPTIMIZATION, USING HTTP PROTOCOL - A mobile device having an identifier supports a mobile server hosting an HTML web site. The mobile device is power cycled according to an ON-OFF timing defined by timing parameters. An association between the timing parameters and the identifier of the mobile device is provided. A web client sends a request to access the mobile device, using a public mobile device identifier. Optionally, the public mobile device identified is mapped to identify ON-OFF timing parameters of the mobile device, and web client access to the mobile device is controlled based on the ON-OFF timing parameters.02-21-2013
20130047017POWER MANAGEMENT SYSTEM AND METHOD - A power management system applicable to regulating a power supplied to an electronic device having a plurality of electronic elements includes a detection module that detects execution modes of the electronic elements and generate detection data, an analysis module that analyzes the detection data to generate process commands corresponding to the execution modes of the electronic elements, and a process module that gradually regulates the power via a power control mode of the electronic device according to the process commands, the power control mode including a light power supply, a sleep power supply and a turn-off power supply A power management method is also provided for regulating a power supplied to an electronic device having a plurality of electronic elements gradually.02-21-2013
20130047016SEMICONDUCTOR DEVICE WITH WAKE-UP UNIT - A semiconductor device having a low power mode includes a buffer circuit associated with an interface pad, a power management controller (PMC), and a wakeup unit for waking up a part of the device from the low power mode. The buffer circuit is disabled in the low power mode by asserting a power on reset (POR) signal associated with the PMC. A wakeup signal is generated and provided to the wakeup unit from an analog power supply associated with the buffer circuit.02-21-2013
20100070788OPTIMIZED COMPENSATION IN A VOLTAGE REGULATOR - Multiple components of a computer system may be capable of entering wake and sleep states. The power consumption of a processor during wake state may draw significant amount of current. In order to keep power consumption of a voltage regulator low, a two-phase voltage regulator may be used during wake state. During sleep state, since power consumption is lower, the two-phase voltage regulator may be operated in a single-phase mode to further reduce voltage regulator power consumption.03-18-2010
20110004777DISPLAY CONTROL CIRCUIT AND DISPLAY CONTROL METHOD - A display control circuit in accordance with an exemplary aspect of the present invention is including a display memory that stores display data to be displayed on a display device, the display memory being supplied with electric power through a power-supply terminal, a power-supply unit that connects the power-supply terminal to a power-supply or a ground according to a request, and a control unit that requests the power-supply unit to connect the power-supply terminal to a ground when the display memory enters a standby mode in which no displaying is performed on the display device, and requests the power-supply unit to connect the power-supply terminal to a power supply when a predetermined time has elapsed after the request even if the display memory is in the standby mode.01-06-2011
20090313492Sleep Processor - An apparatus, method, and system are provided for optimizing computer performance while a first processor is in a sleep mode of operation. For example, an embodiment of the apparatus includes a first processor, a second processor (also referred herein as a “sleep” processor), and one or more peripheral devices. The peripheral devices are coupled to the first processor and the sleep processor through a computer bus architecture. During an active mode of operation, the first processor interacts with and controls the functions of the peripheral devices. In an embodiment, the sleep processor also interacts with and controls the functions of the peripheral devices during the active mode of operation. However, when the first processor is in a sleep mode of operation, the sleep processor is configured to control one or more functions of the computer system incorporating the first processor and the sleep processor. These functions can include applications that may not otherwise be executed while the first processor is in sleep mode such as, for example, functions of the one or more peripheral devices. These functions can also include applications that are not computationally intensive such that the sleep processor can execute the functions at a slower clock frequency, over a longer period of time. In having the sleep processor execute these simpler functions, the first processor does not expend a significant amount of power on these types of applications. As a result, power management of the computer system is improved since the first processor remains in sleep mode for a longer period of time.12-17-2009
20090307511PORTABLE ELECTRONIC DEVICES WITH POWER MANAGEMENT CAPABILITIES - An electronic device may operate in standby and active modes. A headset may be coupled to the electronic device. The electronic device may have audio codec circuitry. The audio codec circuitry may use general purpose input-output circuitry in handling button and headset activity during active mode. Processing circuitry may be used to reconfigure the audio codec in real time. When the electronic device is in the standby mode and activity is detected, the codec may be configured to provide an interrupt signal to a power management unit that wakes the device. When the electronic device is in active mode and no user inputs are received within a given period of time, the central processor in the electronic device may place the device in standby mode.12-10-2009
20100275046INFORMATION PROCESSING APPARATUS AND POWER-SAVING CONTROL METHOD - According to one embodiment, a power management module in an information processing apparatus is configured to execute a process of setting a power-down signal to a peripheral device in an active state in response to a power-down signal generation command, a process of setting the information processing apparatus in a sleep state in response to a sleep state transition request signal, a process of restoring the information processing apparatus to a working state in response to generation of a predetermined wakeup event, and a process of setting the power-down signal in an inactive state before a predetermined time has passed since the restoration of the information processing apparatus to the working state.10-28-2010
20120192001COMPUTER WITH LOW-POWER SECONDARY PROCESSOR AND SECONDARY DISPLAY - A device operable in each of active and inactive modes includes first and second processors. The first processor performs, in accordance with a first power level, both wireless and non-wireless network processing. A second processor performs wireless network processing in accordance with a second power level. While the device is operating in the active mode: the first processor and the first display are powered up; the first display displays a result of the wireless network processing or the non-wireless network processing by the first processor; and the second processor and the second display are powered down. While the device is operating in the inactive mode: the first processor and the first display are powered down; the second processor and the second display are powered up; and the second display displays a result of the wireless network related processing by the second processor.07-26-2012
20120192000METHOD AND APPARATUS FOR COST AND POWER EFFICIENT, SCALABLE OPERATING SYSTEM INDEPENDENT SERVICES - A low cost, low power consumption scalable architecture is provided to allow a computer system to be managed remotely during all system power states. In a lowest power state, power is only applied to minimum logic necessary to examine a network packet. Power is applied for a short period of time to an execution subsystem and one of a plurality of cores selected to handle processing of received service requests. After processing the received service requests, the computer system returns to the lowest power state.07-26-2012
20120191999DATA PROCESSING APPARATUS CAPABLE OF CONTROLLING POWER SUPPLY, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM - A data processing apparatus that has first to fourth power modes in which power consumption becomes larger in this order, and is capable of changing into a mode selected and set by a user. A receiving unit receives the instruction for bringing the data processing apparatus into the third power mode or the fourth power mode. A first transition unit brings, when the apparatus is working in the second power mode, the apparatus into the first power mode in response to the receiving unit receiving the transition instruction. A determination unit determines which mode the apparatus is to be brought into between the third power mode and the fourth power mode in response to the first transition unit bringing the apparatus into the first power mode. A second transition unit brings the apparatus into a power mode determined by the determination unit.07-26-2012
20120191998DYNAMIC POWER MANAGEMENT IN A COMMUNICATIONS DEVICE - A method and system to dynamically manager power in a communication system are provided herein. The method comprises the steps of monitoring a transmit data queue once every first pre-determined period of time and determining whether the transmit data queue is empty for a pre-determined number of times. The method further includes the step of generating a transition state signal to stop de-queuing of data from the transmit queue if the transmit data queue is empty for the pre-determined number of times and selectively operating portions of a Physical Layer (PHY) that are used for functions other than transmitting and receiving an idle signal in a low power mode.07-26-2012
20120191997ACTIVE OPTICAL CABLE (AOC) AND A METHOD AND APPARATUS FOR PERFORMING POWER MANAGEMENT IN THE AOC - An active optical cable is provided that incorporates a power management solution. The AOC has plugs that are configured to mate with respective USB sockets. The AOC is used to interconnect a USB host with a USB device. To the USB host and to the USB device, the AOC appears to be a standard USB electrical cable. Each of the plugs of the AOC has an optical-to-electrical and an electrical-to-optical (OE/EO) conversion module that converts electrical USB signals output from the USB host or USB device into optical signals and converts optical signals carried on the optical fibers of the AOC into electrical USB signals. The plugs include controllers that monitor certain conditions of the AOC and that select the power levels to be used in the plugs based on detected conditions.07-26-2012
20110016339Dynamic Selection of Server States - Techniques for dynamically selecting a server state for one or more servers in a cluster of servers are provided. The techniques include tracking each active and sleep state of each server in a cluster of servers, and selecting a server state for one or more servers in the cluster of servers to meet one or more workload level requirements of the cluster of servers, wherein selecting a server state for one or more servers comprises scheduling a transition between one or more active and sleep states for the one or more servers, wherein scheduling the transition comprises using power consumption information for each state and transition time information for each transition.01-20-2011
20130073888METHOD, A SYSTEM, A DEVICE, A FIRST SERVER, A SECOND SERVER, A THIRD SERVER A COMPUTER PROGRAM AND A COMPUTER PROGRAM PRODUCT FOR OPERATING A COMMUNICATIONS NETWORK - The invention concerns a method for operating a communications network wherein at least one energy characteristic status is determined (03-21-2013
20130073887POWER-SUPPLY CONTROL DEVICE, IMAGE PROCESSING APPARATUS, POWER-SUPPLY CONTROL METHOD, AND COMPUTER-READABLE MEDIUM - A power-supply control device includes a transition section, a body-capable-of-movement detection section, a return control section, a reference-time-period setting section, a state determination section, and a correction section. The transition section shifts a state of an operation target section from one state to another state among a power-supply state and multiple types of non-power-supply states. The body-capable-of-movement detection section detects a body capable of movement. The return control section controls the transition section so as to return the state of the operation target section to the power-supply state. The reference-time-period setting section sets a reference time period. The state determination section checks a state of detection of the body capable of movement after the reference time period elapses. The correction section corrects the reference time period on the basis of detection position information.03-21-2013
20130061078Massively 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
20130061079IMAGE PROCESSING APPARATUS, METHOD FOR CONTROLLING THE SAME AND STORAGE MEDIUM - An image processing apparatus according to the present invention, when shifting from a normal operation state to a power saving state, obtains property information indicating a power supply capability from an external apparatus connected thereto via a DC power source line. Based on the obtained property information, the image processing apparatus controls supply of power from a power source unit to devices included in the image processing apparatus in a power saving state. Specifically, in the power saving state, the image processing apparatus supplies, to a portion of the devices, power supplied from the external apparatus via the DC power source line when the power supply capability of the external apparatus is higher than that of the image processing apparatus, and power supplied from a rechargeable battery when otherwise.03-07-2013
20130061080INFORMATION PROCESSING APPARATUS HAVING A PLURALITY OF POWER MODES, METHOD OF CONTROLLING THE SAME, AND STORAGE MEDIUM - An information processing apparatus capable of reducing time taken to return to a standby state after turn-off of a power switch in a power saving state. A power supply supplies power to a CPU and a RAM in a standby state, supplies power to the RAM without supplying power to the CPU in a second waiting state caused by turning off the power switch, and supplies power to the RAM without supplying power to the CPU in the power saving state caused without having the power switch turned off when a shift-to-power saving state requirement defined in advance is satisfied. A power supply controller causes the apparatus to shift from the second waiting state to the standby state using a standby memory image. The CPU writes the standby memory image in the RAM for storage in the power saving state.03-07-2013
20090271647POWER SUPPLY CONTROL METHOD AND CURCUIT IN COMMUNICATION EQUIPMENT - A circuit includes: an input buffer for storing input data; a plurality of processing sections connected in series including a head processing section and a tail-end processing section to sequentially process the input data; and a power supply controller for controlling power supply to each of the plurality of processing sections depending on a lapse of time during which no input data is stored in the input buffer.10-29-2009
20090089601Network system - Power consumption on GMPLS controlled networks can be reduced by cutting power consumption on spare paths that are not normally used. To achieve power consumption reduction, in the path setting process, a path is calculated while taking the power saving capability of each interface into account, and the applicable interface is set to the power-saving state when setting the spare path. When the spare path was set to the operating state, then the power-saving state on the applicable interface was canceled so that interface could operate normally.04-02-2009
20120226927METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR ADVANCED POWER MANAGEMENT FOR SERIAL ADVANCED TECHNOLOGY ATTACHMENT (SATA)-BASED STORAGE DEVICES - Methods, systems, and non-transitory computer readable media for advanced power management for serial advanced technology attachment (SATA)-based storage devices are disclosed. According to one aspect, the subject matter described herein includes a method for advanced power management of SATA-based storage devices. The method includes, at a SATA-based storage device having a controller, a non-volatile memory for storing data, and a communication interface for communicating with a host, receiving from the host a command to enter a quiescent mode. In response to receiving the command to enter a quiescent mode, the storage device enters a quiescent mode. The storage device receives from the host an indication that the storage device should enter a low power mode. In response to this indication, the storage device puts at least a portion of the non-volatile memory into a low power mode while maintaining at least a portion of the controller in normal power mode. The storage device optionally puts a physical layer interface of the storage device into a low power mode for additional power savings.09-06-2012
20090031156Electronic Apparatus and Method of Conserving Energy - An electronic apparatus and a method of conserving energy comprises providing an energy-conservation module to control use of one or more energy-saving mechanism by a hardware element. The energy-conservation module comprises a performance estimation module that estimates a performance level requirement of the hardware element and a slack time. A cost-benefit qualifier module is provided that uses one or more generic algorithm and at least one separate record that characterises power use and performance by the hardware element in relation to a Performance Power state of the selected energy-saving mechanism in order to determine an existence of an energy saving. The cost-benefit qualifier module sets the hardware element to use the Performance Power state of the selected energy-saving mechanism if the energy-saving exists.01-29-2009
20130067262NOTEBOOK COMPUTER AND CELL PHONE ASSEMBLY - A communication system including, a computer including a controller operable to transition between a plurality of power modes, including a normal power mode and at least one power saving mode, an amplifier that may be enabled or disabled by the controller, to receive audio data from said controller, and a battery to supply power to the controller and to the amplifier, and a communicator coupled to the computer, including a modem to communicate over a wireless network, to enable the amplifier, and to transmit audio data to the amplifier, and a power supply to supply power to the modem.03-14-2013
20130067261SYSTEM AND METHOD FOR COMPUTER POWER CONTROL - Provided herein is a computer implemented system for managing power supply for an electronic device. The system includes computer a learning component that is trained and constructs models according to usage patterns of the electronic device, a component providing a first phase of model building relating to usage of the electronic device; and a forecasting component that employs the learning component and models to generate predictions relating to usage of the electronic device.03-14-2013
20130067260Operating System Management of Network Interface Devices - Operating system management of network interface devices is described. In one or more implementations, a determination is made by an operating system that network traffic associated with one or more applications of the computing device has completed. Responsive to the determination, a network interface device is caused to transition to a mode to reduce power consumption of the network interface device by the operating system.03-14-2013
20130067259STANDBY OPERATION WITH ADDITIONAL MICRO-CONTROLLER - One embodiment of the present invention relates to a low-power micro-controller unit having both a standby micro-controller optimized for low power consumption and a main micro-controller optimized for high performance. A power supply is coupled to the main micro-controller and the standby micro-controller. The power supply provides power to one or more of the low-power, standby micro-controller and the high performance, main micro-controller by separate power supply paths, depending on system needs. The separate power supply paths allow the main micro-controller and the standby micro-controller operate independent of each other. During a low-power standby operating mode, power can be disconnected to the main micro-controller, while providing power to the standby micro-controller, thereby eliminating the leakage current associated with the large number of transistors in the main micro-controller, while still retaining the computational capabilities of the standby micro-controller.03-14-2013
20120117407COMPUTER SYSTEM AND COMPUTER SYSTEM CONTROL METHOD - According to one embodiment, a computer system comprises a first memory that stores a first program, a second memory that stores a second program or data, a processor, a first and a second power control circuits. The first power control circuit causes the first memory to operate at a first power consumption when detecting change of an input signal to the processor, and causes the first memory to operate at a second power consumption smaller than the first power consumption and transmits a temporary halt instruction to the processor when the execution of the first program or the second program by the processor is completed. The second power control circuit causes the second memory to operate at a third power consumption before the processor executes the second program, reads or writes the data.05-10-2012
20120117406METHOD AND APPARATUS FOR MEMORY MANAGEMENT IN MOBILE DEVICE - A method for memory management in a mobile device, and a mobile device for performing the method, are provided. The mobile device performs garbage collection in a flexible manner after transitioning from the sleep state to the wakeup state according to the paging cycle. This contributes to securing the sleep interval for the mobile device and reducing power consumption. The memory management method includes transitioning from a sleep state to a wakeup state, performing a paging procedure in the wakeup state, determining whether to initiate garbage collection after completion of the paging procedure, performing, when it is determined that garbage collection is to be initiated, garbage collection according to a paging cycle, and transitioning from the wakeup state to the sleep state after completion of garbage collection.05-10-2012
20120117405Information Processing Device and Data Distribution Method - An information processing device that is connected to one or more other information processing devices and distributes hibernation data to another information processing device, includes: a storage unit that stores the hibernation data; a configuration information acquisition unit that acquires identification information and configuration information describing a device configuration of each information processing device from the other information processing device; a configuration evaluation unit that analyzes the acquired configuration information and determines if the configuration of the device is the same as the configuration of the other information processing device; and a data transmission unit that, when there is at least one information processing device with the same device configurationas itself among the other informationprocessing devices, sends the hibernation data to an information processing device with the same configuration using the identification information of that other device as the address.05-10-2012
20120117404Decentralized Sleep Management - Techniques for employing a decentralized sleep management service are described herein. In some instances, each computing device of a group of computing devices periodically shares information about itself with each other computing device of the group. With this information, each computing device within the group that is awake and capable of managing other devices selects a subset of devices to probe. The devices then probe this subset to determine whether the probed devices are asleep. In response to identifying a sleeping device, the probing device takes over management of the sleeping device. Managing the sleeping device involves informing other devices of the group that the sleeping device is being managed, in addition to monitoring requests for services on the sleeping device. In response to receiving a valid request for a service hosted by the sleeping device, the managing device awakens the sleeping device and ceases managing the now-woken device.05-10-2012
20110022868Systems and Methods for Managing Power Consumption and Performance of a Processor - Processor-management techniques that purposely alternate a processor between an operating state and a non-operating state while the processor is executing the workload. The techniques leverage the “ultra-low-power” non-operating states of many processors to provide predictable power and/or frequency control of the processor. These techniques can provide better performance than known clock-throttling and dynamic voltage and frequency scaling schemes for controlling processors.01-27-2011
20110022867APPARATUS AND METHOD FOR REDUCING THE STANDBY POWER CONSUMPTION OF A DISPLAY, AND DISPLAY WITH LOW STANDBY POWER CONSUMPTION - A display includes a power supply system using a power controller to switch a power switch to control power delivery, and an image scalar receiving a supply voltage and a supply current from the power supply system. An apparatus and method are proposed to determine a control signal in a standby mode by monitoring the supply voltage or the supply current, to wake up or turn off the power controller to reduce the switching times of the power switch in the standby mode, thereby reducing the switching loss of the power switch and the standby power consumption of the display.01-27-2011
20120272081ENERGY EFFICIENT MULTIFUNCTION PRINTING SYSTEMS AND METHODS FOR EXITING LOW POWER MODE - Multifunction document processing systems and operating methods are presented for energy efficient transitions from low power mode to a partially functional mode in which only certain document processing components are initialized and powered in order to support document processing tasks selected by a user.10-25-2012
20120233482POWER MANAGEMENT BASED ON COMBINED USER INTERFACE AND SENSOR INPUTS - Power usage of a portable computing device is modified to more efficiently use a power supply included in the portable computing device. Power usage by different components of the portable computing device is modified based on use of the portable computing device to allow dynamic modification of power consumption. The portable computing device includes data describing various power management states and the portable computing device transitions between different power management states as it is used, modifying the power consumption of various components in different power management states. Various communication device operating states are also defined to modify power usage by communication devices included in the portable computing device based on device usage.09-13-2012
20130166935CONTROL DEVICE AND COMPUTER PROGRAM PRODUCT FOR CONTROLLING METHOD - In an embodiment, provided is a control device that operates: in a second mode where electric power to each of a processing unit and a second storage unit is stopped and is supplied to a first storage unit; and in a first mode where first control information controlling a state of the processing unit is stored in the second storage unit and electric power to each of the processing unit, and the first and second storage unit is stopped. When shifted from the first to second mode, the power supply control unit starts supply of electric power to each of the processing unit and the first storage unit. If the processing unit has been made to be in an operable first state, the processing unit creates and stores second control information in the first storage unit. Then, the power supply control unit stops electric power to the processing unit.06-27-2013
20090013202Portable Information Processing Apparatus And Method Of The Same - The present invention relates to a portable information apparatus which can realize electrical power for a longer period of time. Under the condition that the suspending mode is set, when an exclusive key is manipulated, a switch monitoring circuit detects this condition and issues an interruption to the CPU. In this timing, the CPU supplies the necessary electrical power to the CD-ROM controller, CD-ROM drive and audio circuit which are required for reproduction of CD. Thereby, a CD can be reproduced under the suspending mode.01-08-2009
20090006877POWER MANAGEMENT IN A STORAGE ARRAY - A data storage system and associated method is provided within an enclosure supporting a self-contained plurality of discrete data storage devices configured for connecting with a network device via a network. The data storage system includes a redundant array of independent drives (RAID) container services module in the enclosure that allocates and manages a storage space of the data storage devices for storing primary and redundant data, and a policy engine in the enclosure that continuously and qualitatively characterizes the network load to the data storage system and manages a power distribution to each of the data storage devices based on a predicted utilization that differentiates between access commands for primary data and access commands for redundant data.01-01-2009
20130166933METHOD FOR WAKING UP A PLURALITY OF HIBERNATED MASS STORAGE DEVICES - A method for waking up a plurality of hibernated mass storage devices is disclosed. The method includes receiving a first command from a control circuit for accessing data stored in a plurality of hibernated mass storage devices; dividing the plurality of hibernated mass storage devices into a plurality of mass storage groups; waking up a first mass storage group of the plurality of mass storage groups; and notifying the control circuit to stop sending commands to the remaining hibernated mass storage devices in a period of time.06-27-2013
20130166934MEMORY STORAGE DEVICE, MEMORY CONTROLLER AND CONTROLLING METHOD - A controlling method for a memory storage device is provided. The method includes: disposing a rewriteable non-volatile memory module which is operated at a first working voltage in the memory storage device; and detecting whether the first working voltage is lower than a first voltage threshold. The method also includes: detecting whether a circuit component working voltage is lower than a circuit component voltage threshold; when the first working voltage is lower than the first voltage threshold, setting the memory storage device to stop executing commands from a host system and to stop giving commands to the rewriteable non-volatile memory module; and, when the circuit component working voltage is lower than the circuit component voltage threshold, enabling a reset signal to stop receiving and executing commands from the host system. Therefore, the method can effectively improve the stability of the memory storage device.06-27-2013
20120239955ELECTRONIC DEVICE - An opening/closing detection unit detects a transition of an electronic device from an open state to a closed state or from the closed state to the open state. An electrical-power control unit sets an operation mode of an application processing unit that executes an application. When a transition from the open state to the closed state is detected while a hold switch is in an OFF state, the electrical-power control unit switches an operation mode of an application processing unit from a normal mode to a sleep mode. On the other hand, when a transition from the open state to the closed state is detected while the hold switch is in an ON state, the electrical-power control unit does not switch the operation mode of the application processing unit from the normal mode to the sleep mode.09-20-2012
20080294921DATA PROCESSING DEVICE, AND CONTROL METHOD OF DATA PROCESSING DEVICE - A multifunctional device shifts the states of plural reception units from a state that the device operates in a power saving state to a state that the device operates in an operating state, according to which of the plural reception units a reception request of data is input to. The multifunctional device can shorten a time from the reception of the reception request of the data to the reception unit to a start of a data process of the data.11-27-2008
20080294920METHOD FOR CONTROLLING ELECTRIC POWER OF COMPUTER SYSTEM - To reduce the electric power consumption of the computer system, the computer system includes at least one server and at least one data processing apparatus, the data processing apparatus includes an electric power consumption state control module by which electric power consumption of the data processing apparatus can be changed, obtains a use relationship between each server and each processing apparatus included in the computer system, monitors a change in a state of the server, searches for a related data processing apparatus in the use relationship with the server, obtains a state of at least one related server in the use relationship with the related data processing apparatus, and determines whether an electric power consumption state of the related data processing apparatus is to be changed or not based on the state of the related server, and changes the electric power consumption state of the related data processing apparatus.11-27-2008
20110029796System and Method for Adjusting an Energy Efficient Ethernet Control Policy Using Measured Power Savings - A system and method for adjusting an energy efficient Ethernet (EEE) control policy using measured power savings. An EEE-enabled device can be designed to report EEE event data. This reported EEE event data can be used to quantify the actual EEE benefits of the EEE-enabled device, debug the EEE-enabled device, and adjust the EEE control policy.02-03-2011
20110035612DISTRIBUTED COMPUTING - On a typical motherboard the processor and memory are separated by a printed circuit data bus that traverses the motherboard. Throughput, or data transfer rate, on the data bus is much lower than the rate at which a modern processor can operate. The difference between the data bus throughput and the processor speed significantly limits the effective processing speed of the computer when the processor is required to process large amounts of data stored in the memory. The processor is forced to wait for data to be transferred to or from the memory, leaving the processor under-utilized. The delays are compounded in a distributed computing system including a number of computers operating in parallel. The present disclosure describes systems, method and apparatus that tend to alleviate delays so that memory access bottlenecks are not compounded within distributed computing systems.02-10-2011
20110035613MICROPROCESSOR HAVING A LOW-POWER MODE AND A NON-LOW POWER MODE, DATA PROCESSING SYSTEM AND COMPUTER PROGRAM PRODUCT - A microprocessor has a low-power mode and a non-low power mode. The microprocessor includes a processor core for executing instructions provided to the microprocessor and a clock providing a clock signal, which in the non-low power mode has a first frequency and in the low power mode has a second frequency lower than the first frequency. A hardware timer is present, for scheduling an execution of an event by the microprocessor at a future point in time. The hardware timer is connected to the clock for determining a period of time between a current point in time and a point in time the event based on a number of clock cycles of the clock signal. A timer controller can determine, when the data processing system switches from the low power mode to the non-low power mode, a number of clock cycles of a clock signal with the first frequency that corresponds to a low-power mode period during which the microprocessor has been in the low power mode and adjusting the hardware timer based on the determined number.02-10-2011
20100235667MOTION SENSOR DATA PROCESSING USING VARIOUS POWER MANAGEMENT MODES - Systems and methods for processing motion sensor data using various power management modes of an electronic device are provided. Power may be provided to a motion sensor during a first power mode of the device. In response to the motion sensor detecting a motion event with a magnitude exceeding a threshold, the sensor may transmit a wake up signal to a power management unit of the device. In response to receiving the wake up signal, the power management unit may switch the device to a second power mode. The device may provide power to a processor and load the processor with a motion sensing application when switching to the second power mode. During the second power mode, motion sensor data may be processed to determine that the motion event is not associated with an intentional user input and the device may return to the first power mode.09-16-2010
20120311362COMMUNICATION DEVICE AND COMMUNICATION METHOD - A communication device that has a normal state and a standby state and that does not permit change of a link rate in the standby state includes: a connecting unit that connects the communication device to a network; a detecting unit that detects traffic at the connecting unit in the network; and a control unit that performs transition processing from the normal state to the standby state when the detecting unit does not detect the traffic for a first period while the communication device is in the normal state. When the control unit is connected to the network by the connecting unit at a first link rate and the detecting unit does not detect the traffic for a second period that is shorter than the first period, the control unit changes the link rate to a second link rate that is lower than the first link rate.12-06-2012
20120317430POWER MANAGEMENT IN A DATA-CAPABLE STRAPBAND - Embodiments of the invention relates generally to electrical and electronic hardware, computer software, wired and wireless network communications, and computing devices, and more specifically to structures and techniques for managing power generation, power consumption, and other power-related functions in a data-capable strapband. Embodiments relate to a band including sensors, a controller coupled to the sensors, an energy storage device, a connector configured to receive power and control signals, and a power manager. The power manager includes at least a transitory power manager configured to manage power consumption of the band during a first power mode and a second mode. The band can be configured as a wearable communications device and sensor platform.12-13-2012
20110219249Network Interface Apparatus - A network interface controller includes a first NIC connected to a LAN and a second NIC, which can proceed to a low power consumption status, connected to the first NIC via a bus. The first NIC includes a storing unit arranged to store response history information transmitted from the second NIC, a registration determining unit arranged to determine whether the received data has been registered in the response history information when network data is received and the status of the second NIC is the low power consumption status, a transmitting unit arranged to transmit response data registered in association with the received data when the received data has been registered, and an activation signal transmitting unit arranged to transmit an activation signal to the second NIC when the received data has not been registered.09-08-2011
20110283124METHOD AND APPARATUS FOR CACHE CONTROL - A method and apparatus for dynamically controlling a cache size is disclosed. In one embodiment, a method includes changing an operating point of a processor from a first operating point to a second operating point, and selectively removing power from one or more ways of a cache memory responsive to changing the operating point. The method further includes processing one or more instructions in the processor subsequent to removing power from the one or more ways of the cache memory, wherein said processing includes accessing one or more ways of the cache memory from which power was not removed.11-17-2011
20110283125AUTOMATIC CLOCK-GATING PROPAGATION TECHNIQUE - Embodiments of the present invention provide a method and system for clock-gating a circuit. During operation, the system receives a description of a circuit that includes clocked memory elements, some of which are clock-gated. Next, the system identifies a sender memory element by identifying a sender path from an output of the sender memory element to a data input for a seed memory element. Then, the system identifies an enable-generating memory element by identifying an enable-signal path from an output of the enable-generating memory element to an enable signal which is used to gate a clock signal input for the seed memory element. Next, the system provides clock-gating for the sender memory element by generating an enable signal using a data input for the enable-generating memory element. Finally, the system gates a clock signal for the sender memory element using this generated enable signal.11-17-2011
20110283126METHOD AND SYSTEM FOR DETERMINING AN IDLE STATE - In a method for determining an idle state: acceleration values are ascertained as a function of three spatial directions; a comparison value is generated from the acceleration values for each of the three spatial directions; each of the comparison values is compared with a threshold value; an interrupt signal is generated if the comparison value is less than the threshold value for each of the three spatial directions; and an electronic component is switched from a power saving state to an operating state as a function of the interrupt signal.11-17-2011
20110283127PORTABLE INFORMATION PROCESSING APPARATUS AND METHOD OF THE SAME - The present invention relates to a portable information apparatus which can realize electrical power for a longer period of time. Under the condition that the suspending mode is set, when an exclusive key is manipulated, a switch monitoring circuit detects this condition and issues an interruption to the CPU. In this timing, the CPU supplies the necessary electrical power to the CD-ROM controller, CD-ROM drive and audio circuit which are required for reproduction of CD. Thereby, a CD can be reproduced under the suspending mode.11-17-2011
20110302437SWITCH-OFF OF A MICRO CONTROLLER UNIT IN BATTERY MODE - Disclosed are apparatus and methodology for providing battery protection for devices operating in a battery supplied low-power mode. Micro controller operated devices (such as electricity meters) that may be stored for extended periods after manufacture and before deployment are provided backup battery protection by insertion of an overcurrent operable switch between the battery and the micro controller. A timer causes the micro controller to switch to a normal power mode after a predetermined time period during which no external supply voltage is provided. Normal power mode operation under battery powered supply only will cause the overcurrent switch to open, so as to disconnect the battery from the micro controller. Alternatively, instead of switching the micro controller to a normal power mode after a predetermined time period, the battery powered supply is shorted to ground using an internal switch of the micro controller, to achieve the same result of disconnecting the battery from the micro controller.12-08-2011
20110302438METHOD AND SYSTEM FOR MANAGING THE OPERATION OF A MULTICORE DATA PROCESSING DEVICE - The data processing device comprising at least two processing units, each processing unit (CR12-08-2011
20110302439METHODS AND APPARATUS FOR ADJUSTING PRINTING DEVICE POWER CONSUMPTION BASED ON USAGE DATA - Methods and apparatus for adjusting printing device power consumption based on previously acquired usage data. The printing device has multiple energy consumption states including at least a ready state in which the printing device is ready to commence processing of a print job immediately upon receipt and including at least a low power state where the printing device is not ready to commence processing of a newly received print job. Acquired usage data includes parameters of print jobs submitted during a data collection period of time. The parameters may include time and date of submitted print jobs. Based on the usage data a usage profile is determined. The usage profile identifies one or more high usage periods of time and one or more low usage periods of time. Methods and apparatus then switch the printing device among the multiple energy consumption states based on the usage profile.12-08-2011
20110302436System Wakeup on Wireless Network Messages - While an information handling device is in a reduced power state, the information handling device transitions from the reduced power state to a higher power state in response to receiving a message over an established wireless network connection that maintains a presence on a wireless network. In turn, the information handling device processes the message accordingly in the higher power state.12-08-2011
20120159218EFFICIENT POWER MANAGEMENT AND OPTIMIZED EVENT NOTIFICATION IN MULTI-PROCESSOR COMPUTING DEVICES - Methods and devices for reducing power consumption in a multi-processor computing device include filtering indications from the second processor intended for the first processor while the first processor is in a low power state, so that only selected, such as significant, indications are transmitted. The second processor may be informed when the first processor is in a low power state. Indications generated by the second processor may be compared to indication filtering criteria to determine whether each should be transmitted to the first processor. Those indications satisfying the indication filtering criteria may be sent to the first processor, causing it to return to a normal power state. In mobile computing device the first processor may be an applications processor and the second processor may be a modem. Filtering of indications may be accomplished in the second processor or in a power controller in some implementations.06-21-2012
20110289333METHOD FOR DYNAMICALLY DISTRIBUTING ONE OR MORE SERVICES IN A NETWORK COMPRISED OF A PLURALITY OF COMPUTERS - The invention relates to a method for dynamically distributing one or more services in a network comprised of a plurality of computers. According to certain aspects of the invention, a past chronological progression of a resource capacity required for a respective service according to a prescribed service requirement is derived from a past chronological progression of the resource demand for the respective service in a predetermined time interval. The past chronological progression of the resource capacity required for the respective service is then used to predict a chronological progression of the resource capacity required for the respective service. The services performed on the computers are finally distributed based on one or more optimization criteria, including that the respective computers provide enough resources for the services performed on the respective computers based on the predicted chronological progressions of the resource capacities required for the respective services.11-24-2011
20110289332METHOD AND APPARATUS FOR POWER MANAGEMENT IN A MULTI-PROCESSOR SYSTEM - Techniques for power management in a multi-processor system are disclosed. One of the processors in the system monitors whether all threads on all central processing unit (CPU) cores in the multi-processor system halt, and send a message to a south bridge to cause at least a part of the system to enter a low power state if all threads in the multi-processor system halt. The processor sends another message to the south bridge to cause at least a part of the multi-processor system to wake up if at least one thread on any CPU core in the multi-processor system exits a halt.11-24-2011
20110289331STORAGE SYSTEM AND ITS INFORMATION PROCESSING METHOD - Returning a response to a host system in a range which does not cause time-out by the host system even if a disk device in a power saving status is an access target of the host system. A NAS controller determines an access request from a client terminal, outputs a command for spinning up a disk device in a spin off status to a disk controller if the access target includes shared folders corresponding with the disk devices in the spin off status, sends response information to the client terminal to the effect that processing for connection with the shared folder as the access target is being performed in response to the access request, and inhibits the client terminal from shifting to the time-out processing.11-24-2011
20110289334DARK WAKE - Exemplary embodiments of methods, apparatuses, and systems for powering up select components of a computer from a sleep state, maintaining a network state, and powering down the select components of the computer to return the computer to the sleep state are described. For one embodiment, a network interface and a fan controller receive power during the network state maintenance but a display or audio components do not receive power during the network state maintenance.11-24-2011
20110296216INTEGRATION OF PROCESSOR AND INPUT/OUTPUT HUB - Methods and apparatus for integration of a processor and an input/output hub are described. In one embodiment, a sideband signal may cause change in a power management state of a processor or an integrated I/O logic. A single integrated circuit die may include both the processor and the integrated I/O logic. Other embodiments are also disclosed.12-01-2011
20110296217MODE CONTROL METHOD - An KIOSK terminal 12-01-2011
20110296220ELECTRONIC APPARATUS AND SYSTEM - An electronic apparatus includes a plurality of devices configured to operate in a power save mode. A detecting section is configured to detect execution of the function of a device and identify a number of executions of each device. An obtaining section is configured to obtain a frequency of use or usage history of the device based on the number of executions. A priority determining section is configured to determine a priority level of the device in being powered on normally, the priority level being determined in accordance with the frequency of use of the device. A power save mode selecting section holds a plurality of power save modes and configured to select a power save mode from among the plurality of power save modes in accordance with the priority level. A controller is configured to control the plurality of devices based on the selected power save mode.12-01-2011
20110296219Image Forming Apparatus and Image Forming Method Having Power Saving Mode - An image forming apparatus includes a communication interface receiving data; a buffer storing the data; a main system processing the stored data; a subsystem controlled by the main system to perform a function of the image forming apparatus; a system control unit; and a data processing unit. The system control unit switches an operation status mode of the image forming apparatus between a normal status mode and a deep sleep status mode. When the image forming apparatus is in the deep sleep status mode, the data processing unit processes the data received from the buffer if the data is determined to be processable by the data processing unit and causes the system control unit to switch the operation status mode from the deep sleep status mode to the normal status mode if the received data is determined not to be processable by the data processing unit.12-01-2011
20110296215Methods and Apparatus for Low Power Out-of-Band Communications - A signal generator circuit for reducing power consumption of message communications between a first device including the signal generator circuit and a second device coupled to the first device comprises a switching circuit and a controller coupled to the switching circuit. The controller is operative to receive a reference clock signal, to receive at least a first control signal indicative of a request for the first device to send a message to the second device when the first device is in a first mode of operation, and to generate an output control signal and an output data signal. The output control signal is operative as a function of the first control signal to selectively power up the switching circuit and a transmitter driver during the first mode. The output data signal includes the message supplied to the transmitter driver, via the switching circuit, for transmission to the second device during the first mode.12-01-2011
20120023355Predicting Future Power Level States For Processor Cores - In one embodiment, the present invention includes a method for providing power state change information from a plurality of cores of a processor to a predictor at a periodic interval and generating a prediction to indicate a predicted operation level of the cores during a next operating period. Other embodiments are described and claimed.01-26-2012
20120023353AUTOMATIC MODE SWITCH PORTABLE ELECTRONIC DEVICE - A portable electronic device having automatic power supply mode switching is provided. The portable electronic device includes a micro-sensor and a control circuit. The control circuit controls operations of the electronic device, the micro-sensor senses whether the electronic device is carried or worn by a user. When the electronic device operates in a normal mode, and if the electronic device is not carried or worn for a time longer than a buffer period of a predetermined interval, the control circuit switches to a sleep mode, which results in lower power consumption.01-26-2012
20090287947CIRCUIT AND METHOD FOR ULTRA-LOW IDLE POWER - A method and circuit for reducing power consumption during idle mode to ultra-low levels, such as 1/1011-19-2009
20100293403Data processing apparatus, image processing apparatus, and method of processing data - A data processing apparatus is switchable between a power saving mode and a normal operating mode. A transition triggering event determining section determines an event (e.g., detection of a document or operation of a power saving key) that causes the data processing apparatus to shift from the power saving mode to the normal operating mode, and a transition triggering event holding section stores the event. Then, a mode switching section causes the data processing apparatus to shift from the power saving mode to the normal operating mode in accordance with the event. An execution priority determining section determines based on the event, an execution priority level and/or an order of precedence in which a plurality of programs are executed during the normal operating mode. A program controlling section executes the plurality of programs in accordance with the execution priority level and/or an order of precedence.11-18-2010
20090172447ELECTRONIC DEVICE WITH SERIAL ATA INTERFACE AND POWER SAVING METHOD FOR SERIAL ATA BUSES - In an electronic device with a serial ATA interface, upon detection of the issue or reception of a preset command, a confirmation device, such as a CPU, confirms the completion of execution of the command. Upon confirming the completion of execution of the command, a controller, which may also be the CPU, controls shifting of the serial ATA interface to a power saving mode.07-02-2009
20090172440COUPLED LOW POWER STATE ENTRY AND EXIT FOR LINKS AND MEMORY - In some embodiments if a new request appears in a receive queue relating to a resource, and a controlled direction of the resource is in a low power state, a method starts an exit of the controlled direction after a delay. If receive direction of power control of the resource is in a low power state and preparation is being made to enter a low power state at the controlled direction, then the method decreases a watch and wait period that occurs prior to moving into the low power state at the controlled direction. Other embodiments are described and claimed.07-02-2009
20090119528MAIN COMPUTER FOR VEHICLE AND POWER MANAGEMENT METHOD THEREOF - A main computer for vehicle includes a central processing unit and a programmable logic device. The central processing unit is configured for controlling operations of the main computer. The programmable logic device is coupled to the central processing unit and includes a built-in power state machine for managing power statuses of the main computer. The power state machine includes a turn-off status, an operating status, and a predetermined status located between the turn-off status and the operating status.05-07-2009
20090119526ELECTRONIC SYSTEM AND POWER CONTROL METHOD THEREOF - Electronic systems capable of entering a power saving mode even if a processing unit therein crashes are provided, in which a system core block comprises a processing unit. A power control block, operating in a different power domain than the system core block comprises a power control logic circuit, which sends an enabling signal to a power supply to power down the system core block according to a triggering signal.05-07-2009
20090144574Method and Device for Controlling Operation of a Portable Electronic Device - A method for controlling operation of a portable electronic device includes detecting an angle between a lid of the portable electronic device and a plumb line and controlling the operation of the portable electronic device according to the angle.06-04-2009
20100153762METHOD AND APPARATUS FOR ADAPTIVE BLUETOOTH LOW POWER DISCOVERY AND WAKE UP - A method of low power discovery (LPD) that extends the battery life of a portable Wi Fi device or portable media player (PMP) using IEEE 802.11 interface by ensuring that PMP host processor is only on when in designated 802.11 coverage or when needed by a user, by employing probabilistic channel scanning-comprising: 06-17-2010
20100153761MULTIPROCESSOR CONTROL UNIT, CONTROL METHOD PERFORMED BY THE SAME, AND INTEGRATED CIRCUIT - A multiprocessor control unit according to the present invention comprises acquisition means for acquiring first non processing time information on a first non processing time represented for each processor, wherein the first non processing time represents a time in which a first block is not executed in a first barrier establish time from barrier synchronization start until barrier synchronization establishment of the first program block, and acquiring second non processing time information on a second non processing time represented for each processor, wherein the second non processing time represents a time in which a second block is not processed in a second barrier establish time from barrier synchronization start until barrier synchronization establishment of the second program block; and power control means for controlling power supply to the plurality of processors while the first and second program blocks are consecutively executed in parallel, using the first and second non processing time information acquired by the acquisition means.06-17-2010
20110264937COMPUTER ENERGY CONSERVATION WITH A SCALABLE PSU CONFIGURATION - A power management method for use by a blade server or other networked computer having a CPU, memory, network interface, and timer. The method includes monitoring processes in the computer, determining that the computer has become idle, and switching the CPU and memory from an active state to a low power state while maintaining the network interface and timer in an active state. Power management for multicore processors is also provided. A power supply system can be used for providing shared power to groups of the networked computers that each have a similar active power demand. Each PSU in the power supply system is capable of supplying the active power demand at an efficiency greater than a preselected desired minimum efficiency. Changes in power requirements resulting from a computer switching between low power and active states can be accommodated by switching a single PSU into or out of the system.10-27-2011
20110219248POWER-DOWN METHOD FOR SYSTEM HAVING VOLATILE MEMORY DEVICES - A power-down method for a system including a plurality of volatile memory devices is disclosed. The method includes providing some of the plurality of volatile memory devices or some memory regions of the volatile memory devices to operate in a self-refresh mode, thereby increasing a rebooting operation speed and reducing power consumption.09-08-2011
20100169686NEAR FIELD COMMUNICATION HOST CONTROLLER INTERFACE - Provided is a communication interface between an NFCH and an NFC device and a method for controlling an NFC HCI. In the method, a command message is transmitted from the host to the device. The command message includes one of recording data, reading data of the device, requesting the device to transmit predetermined data, and setting the device. A response message informing a performance result of a relevant command is transmitted from the device to the host in response to the command message. After that, an event message is transmitted from the device to the host when needed.07-01-2010
20100169684DOWNSTREAM DEVICE SERVICE LATENCY REPORTING FOR POWER MANAGEMENT - For one disclosed embodiment, a transition from a first state to a second, different state for at least a portion of a downstream device may be identified. The first and second states may correspond to different levels relating to activity for at least a portion of the downstream device. Data corresponding to a service latency may be transmitted to an upstream device in response to the identified transition for one or more upstream devices to manage power based at least in part on the service latency. Other embodiments are also disclosed.07-01-2010
20100169685IDLE DURATION REPORTING FOR POWER MANAGEMENT - For one disclosed embodiment, data corresponding to an idle duration for one or more downstream devices may be received. Power may be managed based at least in part on the received data. Other embodiments are also disclosed.07-01-2010
20100169683Platform and processor power management - The present invention relates to platform power management.07-01-2010
20090125741AUTONOMOUS THERMAL MANAGEMENT - The present invention provides both a peripheral device that regulates its own temperature by adjusting its power consumption, and a method to accomplish the same. The method generally includes monitoring the temperature of the mass storage device and reducing power consumption when the temperature exceeds a certain threshold.05-14-2009
20100115318DATA PROCESSING DEVICE AND POWER CONTROL METHOD - A data processing device comprising: a receiving unit operable to receive a control signal from a display device externally connected; a signal processing unit for operable to generate video data and/or audio data; a drive unit operable to store the data generated by the signal processing unit to a recording medium; a signal output unit operable to output a video signal and/or audio signal; and a control unit operable to control operation of the signal processing unit, the drive unit, and the signal output unit; the data processing device further comprising: a power control unit operable to control electric power supplied to the signal processing unit, the drive unit, the signal output unit, and the control unit, wherein the power control unit can control supplying of the electric power in three power states including at least a power-off state, a recording standby state, a power-on state, and wherein the power control unit stops the supplying of the electric power to at least the drive unit in the power-off state, supplies the electric power to at least the drive unit and the control unit in the recording standby state, and supplies the electric power to the signal processing unit, the drive unit, the signal output unit, and the control unit in the power-on state, and wherein the signal output unit stops outputting of the video signal and/or audio signal in the power-off state and the recording standby state, and outputs the video signal and/or audio signal in the power-on state, and wherein the power control unit switches the power state from the power-off state to the recording standby state when the receiving unit receives a signal indicating that the display device is turned on, in the power-off state, and wherein the power control unit switches the power state from the recording standby state to the power-on state when the receiving unit receives a signal instructing start of a recording operation or a power state confirmation signal inquiring the power state of the data processing device from the display device, in the recording standby state.05-06-2010
20100115317GENERATION OF AN IDLE MODE SIGNAL FOR AN ELECTRICAL CONTROL DEVICE - A method for generating a low-voltage power supply for an electrical control device, the method includes switching a first power supply unit to one of an active mode and an idle mode by inputting an activation/deactivation input to the first power supply unit, wherein the activation/deactivation input is input by one of connecting a low-voltage switching signal to the first power supply unit and disconnecting the low-voltage switching signal from the first power supply unit, wherein the low-voltage switching signal is generated at an output end by an additional power supply unit, at least in the idle mode of the first power supply unit, and wherein the low-voltage signal is one of connected and disconnected from the activation/deactivation input of the power supply unit using a low-voltage switch. The invention further relates to a low-voltage power supply circuit of an electrical control device for carrying out such a method.05-06-2010
20090150699SLEEP SCHEDULING METHOD BASED ON MOVING DIRECTIONS OF TARGET IN SENSOR NETWORK - Provided is a sleep scheduling method based on directions of a target in a sensor network. A track subregion is set as an oval shape that is in proportion to a probability of the target moving in certain directions so as to track the target, and sleep patterns of sensor nodes in the tracking subregion are scheduled in consideration of a probability of the target moving in certain directions. As such, the energy efficiency of each sensor node in the sensor network can be improved.06-11-2009
20090150698HOST APPARATUS CONNECTED TO IMAGE FORMING APPARATUS AND POWER SAVE MODE CONTROL METHOD THEREOF - A method of controlling a power save mode of an image forming apparatus connected to a host apparatus, the method includes: requesting information on a power mode of the image forming apparatus; transmitting the power mode information and information on an entering time for a power save mode of the image forming apparatus from the image forming apparatus; and displaying the entering time for the power save mode of the image forming apparatus on a basis of the entering time information.06-11-2009
20100268973INTERFACE CARD, NETWORK DEVICE HAVING THE SAME AND CONTROL METHOD THEREOF - An interface card is capable of communicating with an external device and includes a power supplier; a non-volatile memory which stores executable instructions to operate in an active-mode and a sleep-mode; a small-capacity volatile memory which is supplied with power in the sleep mode; a transmitter-receiver which transmits and receives packet data to/from the external device; and a controller which retrieves sleep-mode instructions stored in the non-volatile memory and loads the sleep mode instructions in the small-capacity volatile memory to transition the interface card into the sleep mode if the transmitter-receiver does not receive the packet data for predetermined time period in an active mode. The interface card processes certain packet data in the sleep mode and transitions back into the active mode when sleep mode operations determine that the packet data cannot be processed in the sleep mode. The non-volatile memory, and other components of an external circuit, is powered down when the interface card is in the sleep mode.10-21-2010
20090113224Method of operation of a portable computer apparatus with thermal enhancements and multiple modes of operation - A portable computer adapted for electrical connection to a docking station having multiple power modes of operation is described. The portable computer has one or more CPU chips which have at least two power modes of operation, a low power mode and a high power mode. When the portable computer is operated as a stand-alone computer, it operates in the low power mode. When the portable computer is operated while electrically connected to the docking station, it operates in a high power mode. The docking station has greater cooling capacity than the portable computer alone to provide enhanced cooling of the high power mode of operation.04-30-2009
20090150697MEDIA FILE REPRODUCTION APPARATUS AND METHOD - A media file reproduction apparatus and method which reduces power consumption by cutting off the power to a storage medium driving unit when a media file stored in a storage medium is being played back. The apparatus includes a storage medium driving unit for retrieving a media file per loading unit from a storage medium; a memory; a power supply; and a controller adapted to load the retrieved media file into the memory and to access the memory and play back the media file. The controller instructs the power supply to reduce or cut off power to the storage medium driving unit from when loading of a corresponding loading unit of the retrieved media file into the memory is completed when instructing a retrieval of a next loading unit of the media file. While the retrieved media file is played back, power to the storage medium driving unit is stopped.06-11-2009
20090150695Predicting future power level states for processor cores - In one embodiment, the present invention includes a method for providing power state change information from a plurality of cores of a processor package to a predictor at a periodic interval and generating a prediction to indicate a predicted operation level of the cores during a next operating period. Other embodiments are described and claimed.06-11-2009
20090055670MODE-SWITCHING SYSTEM AND CAMERA - A mode-switching system, comprising plural switches, a timer, and a controller, is provided. The mode-switching system switches an operation mode of a first unit to one of normal and power-saving modes. The plural switches separately correspond to plural specific functions. Each of the specific functions is carried out when the corresponding switch is switched on. The timer clocks the elapsed time since the switching operation is carried out for any of the switches. The controller switches the operation mode to the power-saving mode from the normal mode when the elapsed time exceeds a threshold value determined for the switch for which the latest switching operation has been carried out. The threshold value is determined individually for each of the switches.02-26-2009
20120110359AUTOMATICALLY DETERMINING OPERATING PARAMETERS OF A POWER MANAGEMENT DEVICE - Automatically determining operating parameters of a power management device is described.05-03-2012
20100235663DATA INTERFACE POWER CONSUMPTION CONTROL - Apparatus and techniques relating to data interface power consumption control are disclosed. Components of a data transfer module may be selectively moved between their normal operating states and reduced power states at times when the data transfer module is not to be used for transferring data. Decisions as to particular components that are to be moved to their reduced power states may be based on respective timing characteristics of the components and/or respective power consumption characteristics of the components, for example. In some embodiments, an action may be performed to reduce a powering up time of the data transfer module when normal operation of the data transfer module is to resume. In the case of a multiple-connection interface having respective data transfer modules for each connection, the interface may be partially shut down by moving a subset of the data transfer modules into reduced power states.09-16-2010
20130219204METHOD AND SYSTEM FOR WAKING UP REMOTE DEVICES - Disclosed are a method and a system for remote wake-up and status check, with a wake-up signal generating unit generating and transmitting a wake-up signal to wake up an electricity supply unit of a remote device to operate normally and provide electricity for the remote device. The wake-up signal has an assigned electric voltage with specific characteristics for detection by the electricity supply unit while in power-off mode and, upon signal detection, the electricity supply unit wakes up to provide normal electric voltage output. The wake-up signal generating unit determines, according to an electric current on a wake-up signal feed line, whether the remote device is in an active mode. A low wake-up energy consumption enables system wake-up and a true powered-off sleep mode.08-22-2013
20130219202INFORMATION PROCESSING APPARATUS WITH POWER SHUTOFF SWITCH AND CONTROL METHOD THEREFOR - An information processing apparatus includes a switching unit configured to be an ON-state in which power is supplied to the information processing apparatus and an OFF-state in which power is not supplied to the information processing apparatus, a driving unit configured to set the switching unit to the off-state, a voltage supply unit configured to apply a voltage to the driving unit, and a control unit configured to, in a case where a condition for shutting off the supply of power to the information processing apparatus is satisfied, perform control to apply the voltage from the voltage supply unit to the driving unit, and, after the voltage is applied to the driving unit, control the driving unit to set the switching unit to the off-state.08-22-2013
20100125744Method and system for providing presence service - A system is configured to provide a presence service with reduction of resource and energy waste. The presence service method includes receiving, at a presence server, a message requesting suspension of delivery of presence information of presentities subscribed by a watcher, the suspension request message being transmitted by the watcher of which a sleep mode condition is satisfied; receiving a changed part of the presence information from one of the presentities; retaining the changed part of the presence information; receiving a message requesting restart of the delivery of presence information from the watcher; and sending the changed part of the presence information to the watcher in response to the restart request message.05-20-2010
20100088531HYBRID-SYSTEM COMPUTER - Disclosed is a hybrid-system computer comprising a first system, a second system and a power supply unit, wherein the power supply unit is connected to the first system and the second system, respectively, and wherein power consumption in an operating state of the second system is lower than that in an operating state of the first system; the hybrid-system computer further comprises: a triggering unit configured for obtaining a switching command when the first system is in an operating state and the second system is in a non-operating state; and a switching unit connected to the triggering unit, the first system and the second system, respectively, and configured for receiving the switching command and controlling the first system to enter a non-operating state and the second system to enter an operating state based on the switching command. With the hybrid-system computer, in the case that only low power consumption applications are required, the first system is caused to enter a non-operating state, and the second system is put into an operating state. Therefore, the overall power consumption can be effectively reduced.04-08-2010
20100100753POWER CONTROL CIRCUIT - A power control circuit for supplying power for a computer component of a computer includes first to sixth switches. In response to the computer changing to a normal work state, a power state signal changes from low level to high level and a motherboard state signal is at high level, the fourth switch is turned on, the fifth switch is turned off, and the sixth switch is turned on, and power of the computer component is stably supplied by a system power supply. The motherboard state signal and the power state signal are at low level in response to the computer changing to a sleep state, the second switch is turned off, the first and third switches are turned on, and power of the computer component is stably supplied by a standby power supply.04-22-2010
20090172442SYSTEM AND METHOD FOR MEMORY PHASE SHEDDING - Embodiments of the invention supply power to DRAM or other memory devices with a multi-phase voltage regulator. A power controller coupled to the multi-phase voltage regulator causes one or more phases of the multi-phase voltage regulator to be activated or deactivated (shed) according to predetermined criteria. Embodiments of the invention thus improve power management by providing one or more reduced power states for the memory devices. Other embodiments are described.07-02-2009
20110197084POWER SAVING SYSTEM AND METHOD EMPLOYED IN COMPUTER - A power saving system for a computer incorporating a standby power source includes a setting module, a detecting module and a controlling module. The setting module communicates with the BIOS of the computer and is configured for setting power saving modes on an interface provided by the BIOS for at least one function circuit, during the time the computer powered on. The detecting module is configured for detecting “enable” and/or “disable” signals output from the BIOS. The controlling module includes at least one switching circuit configured for correspondingly interrupting the power supply from the standby power source to one or more of the at least one function circuit after the computer is shut down and the detecting module receives “enable” signals.08-11-2011
20090113225Method of operations of a portable computer apparatus with thermal enhancements and multiple modes of operation - A portable computer adapted for electrical connection to a docking station having multiple power modes of operation is described. The portable computer has one or more CPU chips which have at least two power modes of operation, a low power mode and a high power mode. When the portable computer is operated as a stand-alone computer, it operates in the low power mode. When the portable computer is operated while electrically connected to the docking station, it operates in a high power mode. The docking station has greater cooling capacity than the portable computer alone to provide enhanced cooling of the high power mode of operation.04-30-2009
20080276107Method and Device to Wake-Up Nodes in a Serial Data Bus - A method of communication comprising sending communication signals switched between dominant and recessive values at clock intervals in frames over a serial data bus from at least one of a plurality of sending nodes to a plurality of receiving nodes. The receiving nodes have an operational state and a standby state in which the current consumption of the node is reduced compared to the operational state. The receiving nodes include wake-up trigger means for triggering transition from the standby state to the operational state in response to the communication signals. The frames of the transmitted signals include an identifier field during which the communication signal alternates between the dominant and recessive values in successive clock intervals with at least one significant occurrence during which the communication signal remains at one of the dominant and recessive values during at least two successive clock intervals, and the trigger means is selectively responsive to the position of the occurrence within the identifier field for triggering the transition from the standby state to the operational state.11-06-2008
20090287946Power supply control circuit - A power supply control circuit includes a standby control circuit, a microprocessor, and a power supply main circuit. The standby control circuit generates a pulse signal, outputs a first control signal, and sets the first control signal to an active state upon actuation of the switch member. The microprocessor outputs and sets a second control signal to first and second states upon first and second generations of the pulse signal, respectively. The standby control circuit maintains the first control signal at the active state when the second control signal is set to the first state, and sets the first control signal to an inactive state when the second control signal is set to the second state. The power supply main circuit outputs a power when the first control signal is set to the active state, and cuts off the power when the first control signal is set to the inactive state.11-19-2009
20100287395COMPUTER SYSTEM FOR PROCESSING DATA IN NON-OPERATIONAL STATE AND PROCESSING METHOD THEREOF - A computer system for processing data in a non-operational state and processing method thereof are provided. The computer system includes a data output unit, a data source, a data processing module and a state monitor unit. The data processing module accesses and processes data from the data source, and transmits the processed data to the data output unit. The state monitor unit monitors a power supply state of the computer system to generate a state switch signal, which indicates whether the computer system is in an operational state or a non-operational state. When the state switch signal indicates that the computer system is in a non-operational state, the data source and the data processing module receives operating voltages to access and process data.11-11-2010
20110173475DOMAIN SPECIFIC LANGUAGE, COMPILER AND JIT FOR DYNAMIC POWER MANAGEMENT - The aspects enable a computing device or microprocessor to determine a low-power mode that maximizes system power savings by placing selected resources in a low power mode while continuing to function reliably, depending upon the resources not in use, acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. The various aspects provide mechanisms and methods for compiling a plurality of low power resource modes to generate one or more synthetic low power resources from which can be selected an optimal low-power mode configuration made up of a set of selected synthetic low power resources.07-14-2011
20110173477POWER CONSUMPTION CONTROL METHOD IN MULTICORE CPU - A power consumption control method for a multicore CPU containing a plurality of cores each occupying a memory with partial array self refresh mode. The method includes making, when a core in the multicore CPU enters a power save mode, another core in the multicore CPU compress data in the memory occupied by the core entering the power save mode, store back compressed data in the memory, and control the memory to perform refresh operations to one or more banks retaining the compressed data.07-14-2011
20110173476USING NON-LOSSLESS COMPRESSION TO SAVE POWER - Circuits, methods, and systems that reduce or eliminate the number of data transfers between a system memory and a graphics processor under certain conditions. After inactivity by a user of an electronic device is detected, the color fidelity of pixels being displayed is reduced. Color fidelity can be reduced by compressing pixel values, and the compression may be non-lossless, for example, pixel data bits may be truncated. The degree of compression can be progressively increased for longer durations of inactivity, and this progression may be limited by a threshold. Inactivity may be detected by a lack of input from devices such as a keyboard, pen, mouse, or other input device. Once activity is resumed, uncompressed pixel data, or pixel data that is compressed in a lossless manner, is displayed.07-14-2011
20110173474DYNAMIC LOW POWER MODE IMPLEMENTATION FOR COMPUTING DEVICES - The aspects enable a computing device or microprocessor to determine a low power mode that provides the most system power savings by placing selected resources in a low power mode while continuing to function reliably, depending upon the resources not in use, acceptable system latencies, dynamic operating conditions (e.g., temperature), expected idle time, and the unique electrical characteristics of the particular device. Aspects provide a mechanism for determining an optimal low power configuration made up of a set of low power modes for the various resources within the computing device by determining which low power modes are valid at the time the processor enters an idle state, ranking the valid low power modes by expected power savings given the current device conditions, determining which valid low power mode provides the greatest power savings while meeting the latency requirements, and selecting a particular low power mode for each resource to enter.07-14-2011
20110173473Image forming apparatus and power management method thereof - A power management method of an image forming apparatus which communicates with at least one terminal device supporting a universal plug and play (UPnP) protocol, including: setting power save mode information which includes a plurality of levels corresponding to the UPnP protocol to the image forming apparatus; storing the set power save mode information; receiving a command to enter a first power save mode among the plurality of levels from the terminal device; comparing the received command to enter the first power save mode with the stored power save mode information; and entering a power save mode by the image forming apparatus corresponding to the received command to enter the first power save mode. With this configuration, the image forming apparatus supporting a UPnP protocol categorizes power save modes by using a low power protocol of the UPnP protocol, and can reduce unnecessary power consumption and improves usability.07-14-2011
20110173472Graphic Controller, Information Processing Apparatus, and Power Saving Method - According to one embodiment, there is provided a graphic controller to be employed in an information processing apparatus that is operable in a system state of either a normal mode or a power saving mode, the graphic controller including: an image processing section provided within a first power domain and configured to generate screen data based on data received from a control section of the information processing apparatus; and a VGA controller provided within a second power domain and configured to output the screen data to a display device, wherein, upon receiving information indicating a transition from the normal mode to the power saving mode, the VGA controller continues outputting the screen data having been outputted to the display device at the time of receiving the information to the display device, even after the transition to the power saving mode.07-14-2011
20110173471SYSTEM AND METHOD OF SAMPLING DATA WITHIN A CENTRAL PROCESSING UNIT - A method of sampling data within a central processing unit (CPU) is disclosed. The method may include monitoring CPU activity, determining whether the CPU enters idle, and executing a dynamic clock and voltage switching (DCVS) algorithm if the CPU enters idle.07-14-2011
20110173470MINIMIZING POWER CONSUMPTION IN COMPUTERS - A computer is disclosed with an operating system including a kernel and a task scheduler to schedule execution of one or more processes on the computer; a power estimator coupled to the task scheduler to determine a required system power based on number or type of processes scheduled for execution; and a variable load power supply including a plurality of power generators each having a predetermined power output and a power manager receiving instructions from the power estimator in the kernel, the power manager enabling a sufficient number of power generators to match the required power generated by the power estimator.07-14-2011
20110208987Semiconductor Device and Data Processing System - A semiconductor device has reduced power consumption and processing time associated with the release of a low power consumption state set by a central processing unit thereof. The semiconductor device controls a relationship between a forcible release and reset of the low power consumption state previously set by the central processing unit. In one embodiment, a forcible release control circuit forcibly releases the supply and stop of power and clocks previously set to one or more controlled circuits, only during a period required by a signal outputted from a requesting circuit, which requesting circuit may be either internal to the device or external to the device. Once the request signal from the requesting circuit has ended, the controlled circuits and, if appropriate, the central processing unit as well, are restored to the original low power consumption state.08-25-2011
20110208986APPARATUS, SYSTEM, AND METHOD OF POWER SAVING CONTROL, AND POWER SAVING CONTROL PROGRAM - The transition between a normal operation mode and a power save mode of an apparatus is controlled by determining whether a power save mode transition condition is satisfied, the power save mode transition condition defining a condition under which the normal operation mode is to be switched to the power save mode, and sending notification from a sub controller to a main controller when the power save mode transition condition is satisfied.08-25-2011
20090172438METHOD AND APPARATUS FOR COST AND POWER EFFICIENT, SCALABLE OPERATING SYSTEM INDEPENDENT SERVICES - A low cost, low power consumption scalable architecture is provided to allow a computer system to be managed remotely during all system power states. In a lowest power state, power is only applied to minimum logic necessary to examine a network packet. Power is applied for a short period of time to an execution subsystem and one of a plurality of cores selected to handle processing of received service requests. After processing the received service requests, the computer system returns to the lowest power state.07-02-2009
20120297225Reducing Current Leakage in L1 Program Memory - An embodiment of the invention provides a method for decreasing power in an L1 program memory of a multi-level memory system. The power is decreased by enabling a sleep mode in the L1 program memory. The sleep mode determines when the L1 program memory will not be accessed for a period of time. When it is determined that the L1 program memory will not be accessed for a period of time, the voltage applied to the memory array is reduced. When it is determined that the L1 program memory will be accessed, the voltage applied to the memory array is increased.11-22-2012
20100146317Apparatus, System, and Method for Power Management Utilizing Multiple Processor Types - An apparatus, system, and method are disclosed for computer system power management. A control module 06-10-2010
20080270812ASYNCHRONOUS WAKEUP MECHANISM - A system for asynchronous process sleep or wake management and corresponding methods thereof are described. The system comprises a sleep queue hash table, a process, and a first sleep object and a second sleep object. The first and second sleep objects each comprise a sleep queue and each of the first and second sleep objects are associated with the process. The system further comprises one or more kernel-space processes arranged to perform at least one of associating the first sleep object with the sleep queue hash table and designating the second sleep object to be used for sleeping the process.10-30-2008
20080250259Power Machine or Vehicle with Power Management - Power management control for a power machine or vehicle is disclosed. In illustrated embodiments, a user interface of the power machine or vehicle includes a power management selection for activating and deactivating power management control. In illustrated embodiments, power management control is implemented through a power management control component based upon feedback from an RPM sensor. As disclosed in illustrative embodiments, the power management control component utilizes control methods and characteristics stored in system memory to determine control input to adjust hydrostatic parameters for power management.10-09-2008
20080288800SEMICONDUCTOR DEVICE WITH A POWER DOWN MODE - includes a power down detecting block for generating a power down mode signal by detecting if the power down mode is activated, a power source control block for producing a power control signal whose ratio of an enable period to a disable period is determined by the power down mode signal, a current saving block whose driving current requirement is reduced in the power down mode, a power switching block for controlling the power supply to the current saving block in response to the power control signal, and a current non-saving block whose driving current requirement in the power down mode is identical to that in a normal operation mode. The semiconductor device can prevent the current consumption due to off-leakage components and static current components generated at internal analog circuits in the power down mode.11-20-2008
20080288799DYNAMIC PROCESSOR POWER MANAGEMENT DEVICE AND METHOD THEREOF - A processor can operate in different power modes. In an active power mode, the processor executes software. In response to receiving a halt indication from the software, hardware at the processor evaluates bus transactions for the processor. If the bus transactions meet a heuristic, hardware places a processor core in a lower power mode, such as a retention mode. Because the bus transactions are evaluated by hardware, rather than by software, and the software is not required to perform handshakes and other protocols to place the processor in the lower power mode, the processor is able to place the processor core into the lower power mode more quickly, thereby conserving power.11-20-2008
20120297226MOTION SENSOR DATA PROCESSING USING VARIOUS POWER MANAGEMENT MODES - Systems and methods for processing motion sensor data using various power management modes of an electronic device are provided. Power may be provided to a motion sensor during a first power mode of the device. In response to the motion sensor detecting a motion event with a magnitude exceeding a threshold, the sensor may transmit a wake up signal to a power management unit of the device. In response to receiving the wake up signal, the power management unit may switch the device to a second power mode. The device may provide power to a processor and load the processor with a motion sensing application when switching to the second power mode. During the second power mode, motion sensor data may be processed to determine that the motion event is not associated with an intentional user input and the device may return to the first power mode.11-22-2012
20080244291Resource power controller - Embodiments of the invention are generally directed to systems, methods, and apparatuses for a resource power controller. In some embodiments, an integrated circuit includes a resource power controller to control whether a resource is in an up state or a down state. In some embodiments, the resource power controller heuristically estimates when to return the resource to an up state based, at least in part, on an estimate of a gap size.10-02-2008
20080209247MONITORING AND SYNCHRONIZATION OF POWER USE OF COMPUTERS IN A NETWORK - A method and system for controlling the power management profiles of computers connected through a network. The method and system monitoring the electrical power use of each computer in the network, and reports this information to an authorized party, such as the network administrator. According to the method and system, an authorized party may configure and maintain a power management profile for each computer in the network. In particular, the authorized party may individually configure and maintain a power management profile for each computer. Alternately, each computer in the network can be classified in a group, and the authorized manager can then configure and maintain a single power management profile shared by each computer in the group.08-28-2008
20090119525Power Supply Device and Communication System - The invention relates to a power supply device and a communication system. The power supply device supplies power to a main device. The communication system is provided with the main device mounting the power supply device therein and an external device connected to the main device. A feature of the invention is to offer a power supply device and a communication system that are capable of being responsive to external signals for returning to a normal operation mode with minimum power consumption in a power-saving operation mode. In the power saving operation mode, a main power supply circuit (05-07-2009
20080276109IMAGE DISPLAY DEVICE HAVING BACKLIGHT - An image display device 11-06-2008
20080270814Controlling power states of a peripheral device in response to user proximity - In a method of controlling the power state of a peripheral device, the peripheral is changed from a first power state to a second power state in response to communications across a network connected to the peripheral indicating that a user is proximately located to the peripheral. A user may be determined to be proximately located to the peripheral by monitoring communications across the network to detect traffic that is associated with a user logging onto a computer that can utilize the peripheral, by discovering a wireless terminal that is associated with a user and which is proximately located to the peripheral, by receiving information from a cellular communication network across the network that indicates that a user of the peripheral is proximately located to the peripheral, and/or in response to a time of day and/or day of week/month schedule.10-30-2008
20120198258WIRELESS INPUT DEVICE WITH A POWER SAVING SYSTEM - An input device with a power saving system is provided for reducing the power consumption of the input device when the input device is at rest. The input device may include a sensor, a rest mode switch, control logic and a current controller. The sensor may be configured to obtain an image data in response to a light incident on the sensor. The rest mode switch may be configured to set the input device to various levels of rest modes when it is inactive. The control logic may be coupled to the rest mode switch and the sensor. The control logic may be configured to set the input device to process a portion of the image data on the sensor array during a wake up detection operation when the input device is at rest. The current controller may be coupled to the control logic and the sensor and configured to control the current supply limited to a section of the sensor array containing the portion of image data that is being processed by the input device during the wake up detection operation.08-02-2012
20120198260Body Heat Sensing Control Apparatus and Method - Embodiments of the disclosed invention include a body heat sensing control apparatus and method for automating features of an electronic device based on detection of a user's body heat. For example, in one embodiment, a data processing system is disclosed having a heat sensing mechanism for detecting the body heat of a user. In addition, the data processing system includes a data storage component for storing computer executable instructions and a processing unit for executing the computer executable instructions for enabling a user to configure one or more functions associated with the data processing system that are triggered in response to detecting the presence or absence of the user within the proximity of the data processing system using the heat sensing mechanism.08-02-2012
20110271130CIRCUIT CONFIGURATION HAVING A TRANSCEIVER CIRCUIT FOR A BUS SYSTEM AND NODES FOR A BUS SYSTEM - A circuit configuration for a node of a bus system includes a transceiver circuit and a control circuit connected to the transceiver circuit. The transceiver circuit has an idle mode, in which it has a reduced power consumption in comparison with at least one operating mode, and the transceiver circuit is supplied with power in the at least one operating mode via a power supply unit integrated into the transceiver circuit. The control circuit is connected to the power supply unit to supply the control circuit with power in the idle mode, and the circuit configuration has a controllable voltage regulator which is coupled to the transceiver circuit in such a way that the voltage regulator is deactivated in the idle mode to reduce the power consumption and activated in the operating mode to supply power to the transceiver circuit and the control circuit.11-03-2011
20090077406Computer, Power Saving Method And Method For Reducing Output Current Of A Web Camera - A computer, a power saving method and a method for reducing output current are disclosed. The computer includes a driving module, an application module, and a daemon module. The driving module initializes the web camera when the web camera connects to the computer. When the web camera outputs signals to the application module, a signal channel is established. The daemon module detects the signal channel. When the signal channel stops, the daemon module set the web camera into the standby mode through the driving module.03-19-2009
20090164820METHODS AND APPARATUS FOR MANAGING POWER ON A COMPUTER IN THE EVENT OF A POWER INTERRUPTION - A computer power management system, comprises a source of primary power, a motherboard, and an uninterruptible power system (UPS) including a power sensing circuit, a battery charger, a battery and power regulator module, a switching device, and control logic. The power management system operates to manage power on a computer in the event of a power interruption by: monitoring primary input power to a computer; delivering battery derived power from a battery internal to the computer to a subset of the computer's components; disabling at least one of a user input device and/or user output device; and saving zero or more open files to a storage device. Sizing the UPS to deliver only that amount of power required to save open files minimized cost and size of the computer.06-25-2009
20090164819TRI-LAYERED POWER SCHEME FOR ARCHITECTURES WHICH CONTAIN A MICRO-CONTROLLER - Various embodiments are directed to a tri-layered power scheme for architectures which contain a microcontroller. In one embodiment, a power management system may comprise a microcontroller in a chipset, a low consumption power well to control a power supply to the microcontroller, and a power controller to control a power supply to the low consumption power well. The power management system may be arranged to switch among multiple power consumption states. In a maximum power consumption state, the microcontroller is on, the power controller is on, and the low consumption power well is on. In an intermediate power consumption state, the microcontroller is off, the power controller is on, and the low consumption power well is required to be on. In a minimum power consumption state, the microcontroller is off, the power controller is on, and the low consumption power well is optionally on or off at the discretion of the power controller. Other embodiments are described and claimed.06-25-2009
20090089599POWER SUPPLY SYSTEM FOR LOW POWER MCU - A microcontroller includes a processing unit having a processing unit having normal power mode of operation and a low power mode of operation. The processing unit further having digital circuitry connected to the processing unit having a plurality of logic circuits associated therewith for processing digital values. A plurality of retention flip-flops are associated with the digital circuitry for storing a logical state of at least one or more of the logic circuits within the digital circuitry when the processing unit enters the low power mode of operation. The plurality of retention flip flops include a first type of transistors for operating in both the low and high power modes of operation and a second type of transistors for operation only in the normal mode of operation and wherein substantially the remainder of the digital circuitry in the processing unit comprises the second type of transistors.04-02-2009
20090177905ELECTRONIC DEVICE WITH SERIAL ATA INTERFACE AND POWER SAVING METHOD FOR SERIAL ATA BUSES - In an electronic device with a serial ATA interface, upon detection of the issue or reception of a preset command, a confirmation device, such as a CPU, confirms the completion of execution of the command. Upon confirming the completion of execution of the command, a controller, which may also be the CPU, controls shifting of the serial ATA interface to a power saving mode.07-09-2009
20090187779AUTOMATIC POWER MANAGEMENT METHOD - The application discloses methods applied to an electronic system capable of operating in a non power saving mode and a power saving mode. According to one of the methods, the idle time when the electronic system is idle in the non-power saving mode is measured. If the idle time equals or exceeds a mode entry time, the electronic system enters the power saving mode. The power down duration when the electronic system stays in the power saving mode is measured. The mode entry time is then modified based upon the power down duration.07-23-2009
20090055671Apparatus and method for entering idle mode in a broadband wireless access (BWA) system - A power saving mode is provided. A method for entering a power saving mode of a terminal includes a first operation for starting a first timer after transmitting an idle mode request message; a second operation for, when an idle mode approval message is not received until the first timer expires, checking whether a number of retransmissions of the idle mode request message exceeds a number of allowed retransmissions of the idle mode request message; a third operation for, when the number of the retransmissions of the idle mode request message exceeds the number of the allowed retransmissions of the idle mode request message, increasing a number of idle mode entry failures; and a fourth operation for, when the increased number of the idle mode entry failures is greater than N times, entering a power saving mode which powers off a modem.02-26-2009
20090144573IMAGE FORMING APPARATUS AND CONTROL METHOD OF IMAGE FORMING APPARATUS - A disclosed image forming apparatus includes a printing unit configured to print an image onto a recording sheet based on image data; a controlling unit configured to control a print execution process for the printing unit and to control all units of the image forming apparatus; and a monitoring unit configured to monitor, while the printing unit and the controlling unit are in a power-saving mode in which power supply to the printing unit and the controlling unit is stopped, whether there is a resuming factor for resuming operation from the power-saving mode. The monitoring unit includes a requesting unit configured to send, to the printing unit, a request to resume operation and a request to set a printing mode, before sending a request to resume operation to the controlling unit, in the event that the resuming factor is detected.06-04-2009
20090019298METHOD AND SYSTEM FOR MANAGING ECOSYSTEM SLEEP - A method for managing sleep modes in an ecosystem of components, the method includes: receiving an inactivity signal from at least one component in the ecosystem of components, the inactivity signal indicating that a predefined period of inactivity has been exceeded for that component; sending a sleep command to one or more components in the ecosystem in response to the inactivity signal, thereby establishing a sleep mode in the one or more components; subsequent to establishing the sleep mode, detecting activity in one or more of the one or more components through an awake signal received therefrom; sending an awake message to the one or more components in response to the awake signal, thereby terminating the sleep mode in the one or more components; wherein the sleep mode shuts off defined non-essential features within the one or more components, while maintaining defined essential processing tasks associated with of the one or more components placed into the sleep mode.01-15-2009
20090024859STRUCTURE AND METHOD TO OPTIMIZE COMPUTATIONAL EFFICIENCY IN LOW-POWER ENVIRONMENTS - A method and structure to optimize computational efficiency in a low-power environment. A design structure is embodied in a machine readable medium used in a design process. The design structure includes a component to determine an optimal point for maximizing computational efficiency in a low-power environment, and a component to selectively control operation of at least one processing unit of a plurality of processing units in accordance with the determined optimal point. The design structure further includes at least one of a component for controlling a frequency of a clock signal transmitted to the at least one processing unit in accordance with the determined optimal point, and a component for determining a present power available.01-22-2009
20090024860LOWEST POWER MODE FOR A MOBILE DRIVE - A hard disk drive enters a low power mode to reduce power consumption. To maintain communication with a host device, a communication interface remains energized along with a circuit portion storing configuration data for the communication interface. The hard disk drive may have a Universal Serial Bus (USB) interface to provide two-way communication to external data processing equipment. The hard disk drive may have a system on a chip (SoC) core to issue the low power mode entry command. During the low power mode, circuitry for external communication is kept in an active state.01-22-2009
20090024858System and method for reserving information handling system battery charge to perform diagnostics - A power diagnostics module running on an information handling system initiates a power down state of the information handling system upon detection of a predetermined battery charge that is sufficient to allow the information handling system to recover from the power down state and run the power diagnostics module. The power diagnostics module runs on the predetermined charge to diagnose faults associated with the power system, such as failure of an external AC adapter, and to present the faults to an end user, such as at a display, with LEDs or through a network message.01-22-2009
20090204834SYSTEM AND METHOD FOR USING INPUTS AS WAKE SIGNALS - A system and method for waking up a portion of a programmable system on a chip (SoC). The system includes a power management unit for controlling power levels to the SoC and one or more inputs for receiving inputs from a coupled device. The system further includes a power management interface coupled to the one or more inputs. The power management interface signals the power management unit to adjust power levels to the SoC in response to receiving a signal via the one or more inputs corresponding to a wake event.08-13-2009
20090199032METHOD FOR DETERMINING AND MAXIMIZING UNAVAILABILTY INTERVAL - The method for maximizing an unavailability interval includes the steps of initializing the starting frame number of each power saving class f08-06-2009
20090199031USB Self-Idling Techniques - USB self-idling techniques are described. In one or more embodiments, a Universal Serial Bus (USB) device comprises one or more modules to communicate via USB and self-idle by presenting an idle mode to a USB host and entering a suspend mode while the USB host is presented with the idle mode.08-06-2009
20090199030Hardware Wake-and-Go Mechanism for a Data Processing System - A hardware wake-and-go mechanism is provided for a data processing system. The wake-and-go mechanism recognizes a programming idiom that indicates that a thread is waiting for an event. The wake-and-go mechanism updates a wake-and-go array with a target address associated with the event. The thread then goes to sleep until the event occurs. The wake-and-go array may be a content addressable memory (CAM). When a transaction appears on the symmetric multiprocessing (SMP) fabric that modifies the value at a target address in the CAM, the CAM returns a list of storage addresses at which the target address is stored. The wake-and-go mechanism associates these storage addresses with the threads waiting for an even at the target addresses, and may wake the one or more threads waiting for the event.08-06-2009
20090199029Wake-and-Go Mechanism with Data Monitoring - A wake-and-go mechanism is provided for a data processing system. The wake-and-go mechanism recognizes a programming idiom, specialized instruction, operating system call, or application programming interface call that indicates that a thread is waiting for an event. The wake-and-go mechanism updates a wake-and-go array with a target address, expected data value, and comparison type associated with the event. The thread then goes to sleep until the event occurs. The wake-and-go array may be a content addressable memory (CAM). When a transaction appears on the symmetric multiprocessing (SMP) fabric that modifies the value at a target address in the CAM, logic associated with the CAM performs a comparison based on the data value being written, expected data value, and comparison type.08-06-2009
20090199028Wake-and-Go Mechanism with Data Exclusivity - Snoop response logic on a system bus is configured to detect on the system bus requests to access data at a target address with data exclusivity from at least one of a plurality of wake-and-go engines. The snoop response logic is further configured to determine a winning wake-and-go engine from the at least one wake-and-go engine that obtains a lock on the target address and generate a combined snoop response. The combined snoop response identifies the winning wake-and-go engine. The snoop response logic sends the combined snoop response to the at least one wake-and-go engine on the system bus. Each remaining wake-and-go engine within the at least one wake-and-go engine places an entry in its respective wake-and-go storage array to spin on a lock for the target address.08-06-2009
20090199027METHOD AND APPARATUS TO AVOID POWER TRANSIENTS DURING A MICROPROCESSOR TEST - Exemplary embodiments provide a computer-implemented method and a system for a startup cycle for a cycle deterministic start. An initializing mechanism applies power to a microprocessor. The initializing mechanism initializes the configuration of the microprocessor. The initializing mechanism initializes a timer. The initializing mechanism then sends a clock start command to the microprocessor. The clocks on the microprocessor are started. Upon the clocks starting, the timer begins and allows temporary transients, such as voltage droop due to a large instantaneous change in demand for current due to the commencement of clock switching. Responsive to the timer reaching a target value, an interrupt unit sends a system reset interrupt. Responsive to the interrupt unit sending the system reset interrupt, an instruction fetch unit fetches a first instruction. This operation will be deterministic to the state of the rest of the microprocessor memory elements (latches, arrays, et al.).08-06-2009
20090259867Power Supply Capable of Receiving Digital Communications from Electronic Devices - A power supply capable of receiving digital communications from an electrical device is described. The power supply includes a microprocessor and instructions, configured for execution by the microprocessor, to receive a digital communication from a device to be powered by the power supply. A method of supplying power is also described. The method includes receiving a digital communication from a device and supplying power to the device based on the digital communication.10-15-2009
20120079301Making Read-Copy Update Free-Running Grace Period Counters Safe Against Lengthy Low Power State Sojourns - A technique for making a free-running grace period counter safe against lengthy low power state processor sojourns. The grace period counter tracks grace periods that determine when processors that are capable executing read operations have passed through a quiescent state that guarantees the readers will no longer maintain references to shared data. Periodically, one or more processors may be placed in a low power state in which the processors discontinue performing grace period detection operations. Such processors may remain in the low power state for a complete cycle of the grace period counter. This scenario can potentially disrupt grace period detection operations if the processors awaken to see the same grace period counter value. To rectify this situation, processors in a low power state may be periodically awakened at a predetermined point selected prevent the low power state from extending for an entire roll over of the grace period counter.03-29-2012
20120079302COMMUNICATION DEVICE AND COMMUNICATION SYSTEM - According to an embodiment, a communication device includes a wake-up signal reception unit configured to receive a wake-up signal to request a change of a state from a second state to a first state, the second state requiring less power consumption than the first state; and a state control unit configured to change the state from the second state to the first state and inform a control unit of the change of the state when the wake-up signal is received, the control unit being configured to process a frame received during the first state.03-29-2012
20090083562CONVERTIBLE COMPUTER - A convertible computer is equipped with a notebook computer function and a tablet computer function. When a system power supply is turned on, a functionality or physical configuration such as rotation state of a display module can be detected, and an environment can be controlled such as an operating system (OS) for a tablet computer or notebook computer is selectively booted. Input signals of input units can also be controlled in an activation or inactivation state according to a system mode. An operation of switch sensing an open/closed state of a liquid crystal display (LCD) can be controlled by a signal generated by the rotation operation of the display module. In a state in which at least one control value necessary for setting a system environment is stored in a memory, the system mode switching operation is monitored and the system environment is set according to the switched system mode.03-26-2009
20090083560Computing Device Power Management - A system, method, and computer usable medium for computing device power management. The method includes identifying a correlation between active states of a computing device and active states of a connected device connected to the computing device through a network, the correlation indicating the desirability of the computing device being active; and providing an active state in the computing device based on the identified correlation. Providing an active state in the computing device based on the identified correlation may include preventing the computing device from entering a power-saving mode based on the identified correlation or waking the computing device.03-26-2009
20080263378System and method for protecting disk drive password when bios causes computer to leave suspend state - To unlock a HDD when a computer is in the suspend state, at both BIOS and the HDD a secret is combined with a password to render a new one-time password. BIOS sends its new one-time password to the HDD which unlocks itself only if a match is found. The new one-time password is then saved as an “old” password for subsequent combination with the secret when coming out of subsequent suspend states. In this way, if a computer is stolen the thief cannot sniff the bus between BIOS and the HDD to obtain a password that is of any use once the computer ever re-enters the suspend state.10-23-2008
20090100281COMMUNICATION DEVICE AND COMMUNICATION METHOD - A communication method includes transmitting a first transition notification of a sleep mode to make allotment of a channel time unnecessary to a first host, and communicating first data to a second host in a first transition state which the first host transits to the sleep mode.04-16-2009
20090210733INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, AND INFORMATION PROCESSING METHOD - An information processing apparatus includes a transfer unit configured to retain at least one network address from among a plurality of network addresses and transfer other network addresses to other information processing apparatus, a power saving state shifting unit configured to shift to a power saving state, and a return unit configured to return the power saving state to a normal state when the retained network address is accessed.08-20-2009
20090037756System and Method for Suspending Operation of a Mobile Unit - Described is a method for suspending operation of a mobile unit. Data, settings, an operating system state, and/or at least one application state of a mobile unit is saved to a non-volatile memory. At least one component of the mobile device is deactivated. The mobile unit is placed in a suspend mode.02-05-2009
20090204833MINIMIZATION OF POWER CONSUMPTION IN SERVER ENVIRONMENT - A method for minimizing power consumption in a computer server is provided. Collected data for an event is compared with an entry in a power consumption table. A power reduction mechanism is triggered if the collected data and the entry are within a specified range. The power consumption table is updated with the collected data if the collected data and the entry are not within the specified range.08-13-2009
20090254770Low voltage reset determination and operational flow modification for microprocessor-controlled devices - A method of identifying a reset condition includes the steps of determining if a stored value is equal to a specified value, executing a first mode if the stored value is not equal to the specified value, and executing a second mode if the stored value is equal to the specified value. The second mode also includes the step of setting the stored value to a value different than the specified value.10-08-2009
20090249100CIRCUIT SYSTEM - One aspect of the embodiment is related to a circuit system having multiple circuit blocks each of which operates upon reception of power supply. The circuit system includes multiple circuit blocks each of which operates upon reception of power, multiple switch elements which are provided respectively to the multiple circuit blocks and each of which supplies and cuts off power to the corresponding circuit block upon reception of control and a power control unit that controls each of the multiple switch elements to cause the switch element to supply and cut off power to the corresponding circuit block.10-01-2009
20090249101METHOD AND SYSTEM FOR CONTROLLING POWER PROVIDED TO AN ACCESSORY - A method for a portable media player to control power provided an accessory is disclosed. The method includes requesting information about the power capabilities of the accessory by the portable media player. The method further includes providing information about the power capabilities of the accessory by the accessory to the portable media player, and utilizing the information to set the power of the accessory. A method and system in accordance with the present invention provides a system that allows a portable media player to obtain information from an accessory concerning its power requirements. A portable media player can then utilize the power requirements information to allow for the powering of the accessory when connected to the portable media player.10-01-2009
20090249099INFORMATION APPARATUS AND CONTROLLING METHOD THEREOF - An information processing apparatus and method include mode controlling. A first information processing unit controls a telephone process using a radio communication unit and displays the image to display unit in response to a request, and a second information processing unit mutually operable in parallel with the first information processing unit controls a telephone process using the radio communication unit and makes the display unit display the image in response to a request. The mode controlling sets one of the first information processing unit and the second information processing unit to a master mode and sets other of the first information processing unit and the second information processing unit to a slave mode.10-01-2009
20090254771USB Power Conservation Method and Apparatus - Embodiments of a method and system for conserving power used in a central processing unit (CPU) are described. An embodiment uses direct memory access (DMA) fetch suspend logic to allow the CPU to stay in a sleep state indefinitely until a break event occurs. Embodiments include power management monitoring and Universal Serial Bus (USB) descriptor monitoring logic. Power management monitor logic monitors the CPU sleep state and sets a status flag to the USB descriptor monitoring logic whenever the CPU is in a predefined sleep state. The USB descriptor monitoring logic monitors the fetching of linked descriptor lists. When the CPU status flag is raised, it causes monitoring of the descriptor fetch by the USB descriptor monitoring logic. If the USB controller has completed all of the descriptor fetches while the CPU sleep flag is true, this logic sets a flag to cause the USB controller to suspend DMA fetch operations.10-08-2009
20120036382COMPUTER SYSTEM WITH POWER SAVING FUNCTION - A computer system capable of showing documents for users to read in a power saving mode is disclosed. The computer system includes a system end and a display end. The system end operates normally in a normal mode, when in a reading mode, the system end converts the data in processing to N pieces of frame data, and then the system end enters a suspend mode. The display end operates continuously in the reading mode. It includes an image buffer connecting to the system end, the image buffer temporarily storing N pieces of the frame data sent by the system end, an input device generating a control signal; a display panel; and an image transmitter connected to the image buffer, the display panel and the input device. The image transmitter displays the frame data on the display panel. When in the reading mode, the image transmitter receives the control signal generated by the input device, and retrieves the specific frame data from the image buffer and sends it to the display panel for displaying.02-09-2012
20090259865Power Management Using At Least One Of A Special Purpose Processor And Motion Sensing - A power management device useable in a mobile station includes a main processor configured to execute applications including signal processing applications and further configured to enter a sleep mode in response to predetermined criteria. The device further includes a circuit configured to operate when the main processor is in the sleep mode comprising at least one of a low power processor and a sensor to monitor at least one of signals, commands, inputs, and changes in environment, the circuit waking up the main processor responsive to one of the low power processor and the sensor. The device may operate a method and may execute instructions based on a machine readable medium.10-15-2009
20100064159METHOD AND CONTROLLER FOR POWER MANAGEMENT - Power management of a system. A request may be received to enter a first sleep state for a system. One or more processes may be performed to enter the first sleep state in response to the request to enter the first sleep state. A system memory of the system may be stored in a nonvolatile memory (NVM) in response to the request to enter the first sleep state in order to enter a second sleep state. Power may be removed from the system memory after storing the system memory in the NVM in response to the request to enter the first sleep state. After removing power to the system memory, the system may be in the second sleep state.03-11-2010
20090259866ELECTRONIC DEVICE AND POWER SUPPLY UNIT - An electronic device has: an operation unit; a power supply unit; an input changeover switch; and a controller. The power supply unit is supplied commercial power and supplies the operating power to the operation unit. The input changeover switch switches between supplying or not supplying the commercial power to the power supply unit. The controller controls the input changeover switch. The controller includes: a power input portion; a control signal input portion; and a switching signal output portion. When the device power is being supplied from a master electronic device to the power input portion and the control signal from the master electronic device is received by the control signal input portion, the switching signal output portion outputs to the input changeover switch a signal instructing to switch and supply the commercial power to the power supply unit.10-15-2009
20090259864SYSTEM AND METHOD FOR INPUT/OUTPUT CONTROL DURING POWER DOWN MODE - A system and method for maintaining values on output pads of an integrated circuit during entry, exit, and while a portion of the integrated circuit is in a power conservation or deep power down mode. The method for entering a power conservation mode includes determining a power conservation mode value which will be maintained at an output pad while a portion of an integrated circuit is in a power conservation mode. The power conservation mode value may then be selected for output and the power conservation mode value is held at the output pad. The portion of the integrated circuit to enter the power conservation mode is then electrically decoupled from the output pad. The portion of the integrated circuit may then be placed in the power conservation mode without output signal slighting while maintaining the output value.10-15-2009
20090259863RESPONDING TO INTERRUPTS WHILE IN A REDUCED POWER STATE - To reduce power consumption, a processor can be placed into a reduced power state. Before doing so, interrupt events can be designated as wakeup events. While the processor is in the reduced power state, if an event designated as a wakeup event occurs, then a signal is directed to a wakeup event handler instead of to an interrupt handler. In response to the signal, the wakeup event handler causes power to be restored to the processor, so that the event can be subsequently serviced.10-15-2009
20130219203CONTROL DEVICE, CONTROL METHOD, COMPUTER PROGRAM PRODUCT, AND ELECTRONIC DEVICE - According to an embodiment, a power control device includes a storage unit, a monitor, a determining unit, and a controller. The storage device stores a look-up table, which includes relationship between needed power consumptions and start-up conditions of an electronic device including a plurality of modules. The start-up condition of the electronic device is determined from the needed power consumption in the look-up table and specifies a power on/off status of the modules in the electronic device. The monitor monitors a voltage or available power supplied by a power source when the electronic device is activated. The determining unit determines a start-up condition corresponding to needed power consumption, which corresponds to the voltage or available power monitored by the monitor, with reference to the table. The controller sets a start-up condition of the electronic device to start up the electronic device in the start-up condition determined by the determining unit.08-22-2013
20130219201ELECTRONIC DEVICE SYSTEMS AND METHODS FOR MAINTAINING LOW POWER CONSUMPTION WHILE PROVIDING POSITIONING FUNCTION IN ELECTRONIC DEVICE SYSTEM - An electronic device system includes a first device and a second device. The first device controls system operations and operates in at least a normal mode and a sleep mode having lower power consumption. After issuing a condition setting signal carrying at least a wake up condition, the first device switches from the normal mode to the sleep mode. After receiving an interrupt indication signal, the first device switches from the sleep mode to the normal mode. The second device is coupled to the first device and continuously receives and processes multiple satellite signals to obtain position information. The second device receives the condition setting signal from the first device and determines whether the wake up condition has been met according to the position information. When the wake up condition has been met, the second device issues the interrupt indication signal.08-22-2013
20130219200STATIC READ ONLY MEMORY DEVICE WHICH CONSUMES LOW STAND-BY LEAKAGE CURRENT - An electronic device comprises a semiconductor memory cell having a bistable bit storage circuit having first and second power contact points. A first switch is coupled to the first power contact point to receive a first voltage. A second switch coupled to the second power contact point to receive a second voltage. Circuitry is provided for turning off the first and second switches to decouple the respective first and second voltages from the respective first and second power contact points, during stand-by operation of the electronic device.08-22-2013
20120246503INFORMATION PROCESSING APPARATUS AND JUDGING METHOD - According to one embodiment, an information processing apparatus includes a processor, a non-volatile storage unit, a receiving unit, a judging unit, and a transmitting unit. The receiving unit receives from the processor an inquiry about accessibility of the storage unit. The judging unit judges, upon receipt of the inquiry, whether the storage unit is accessible on the basis of a start-up time period between starting power supply to the storage unit and activation of the storage unit. The transmitting unit transmits a judgment result obtained by the judging unit to the processor.09-27-2012
20080307244Method of and Apparatus for Reducing Power Consumption within an Integrated Circuit - An integrated circuit comprising a plurality of processing cores, characterised by comprising electrically controllable switches for controlling the supply of power to one or more of the processing cores, a memory for saving state data from at least one of the processing cores and a controller adapted to control the supply of power to one or more of the processing cores such that processing cores can be de-powered.12-11-2008
20100180135Dynamic Power Management For Internal Information Handling System Links - In some embodiments, a method for automatically and dynamically controlling the power states of physical layer links (PHYs) in a modular information handling system is provided. A chassis manager automatically determines a status of at least one of the chassis manager and a managed chassis module of a modular information handling system. The chassis manager automatically identifies a PHY power down condition based at least on the determined status of at least one of the chassis manager and the managed chassis module, and in response to identifying the power down condition, the chassis manager powers down one or more management link PHYs associated with a management link between the chassis manager and the managed chassis module.07-15-2010
20100162019POWER MANAGEMENT IN A DEVICE - Implementations of power management in a device are described. The device includes a power driver configured to manage power supply to one or more components in system-on-chip (SOC) hardware. The device further includes power subsystems configured as drivers for controlling the components of the SOC hardware and a user interface configured to receive a selected power mode as an input and identify profiles of one or more applications being executed in the device. Based on the selected power mode, the power driver directs the power subsystems to change a mode of operation of at least one component determined from the profiles of the one or more applications being executed.06-24-2010
20100191997PREDICT COMPUTING PLATFORM MEMORY POWER UTILIZATION - A method is to include implementing at least one statistical prediction model to predict memory power utilization and reduce power consumption for a computing platform. The implementation includes determining a configuration parameter for the computing platform, monitoring an operating parameter for the computing platform and predicting memory power utilization for the computing platform based on the determined configuration parameter and the monitored operating parameter. The method is to also include transitioning at least one memory module resident on the computing platform to one of a plurality of power states based at least in part on memory power utilization predicted via the implementation of the at least one statistical prediction model.07-29-2010
20100191996SUPPLY-AND-DEMAND CONTROL SYSTEM OF DISTRIBUTED AND COORDINATED TYPE, FOR USE IN POWER SYSTEMS - According to one embodiment, each of the nodes incorporated in the respective electrical apparatuses that constitute a local power system establishes a communication path connected to any adjacent node, transmits and receive average supply-and-demand state data to and from the adjacent node through the communication path. Each node adjusts (increases or decreases) the power to generate or consume in it, on the basis of the average supply-and-demand state data. Each node performs a supply-and-demand control of distributed and coordinated type, in which the average supply-and-demand state value is corrected based on the value by which the power has been adjusted (increased or decreased) and the average supply-and-demand state value thus corrected is supplied to the adjacent node through the connection path.07-29-2010
20100191994METHOD AND APPARATUS FOR CONTROLLING ENERGY CONSUMPTION DURING RESOURCE SHARING - An approach is provided for controlling energy consumption during resource sharing. One or more peer nodes determine scheduling information relating to when the peer nodes can utilize a predetermined level of communication capacity for sharing a computer resource (e.g., sharing content). The peer nodes transition between an active state for sharing the computer resource at the predetermined capacity and an inactive state to minimize energy use according to the scheduling information until the content transfer is complete.07-29-2010
20090125740Dual programmable energy saving timer system - A dual control programmable energy savings timer is described that provides primary control to a utility provider or other supplier of electrical power but a second level of programmable control to an end user that enables additional power savings to end users of electrical energy.05-14-2009
20100262852AUTOMATIC SUSPENDING APPARATUS FOR COMPUTER - An automatic suspending apparatus is electrically connected to a computer, to allow the computer to enter into a sleep state. The suspending apparatus includes an image identifying module and a control module. The image identifying module includes an image capturing device to get image information in front of the computer, and an image identifying unit to determine whether body information of a user of the computer exists in the image information. The control module includes a timing module to record time and output an enable signal, and a signal simulation module to output a sleep signal to the computer for controlling the computer to enter into the sleep state.10-14-2010
20100191995In-Band Sleep Protocol for Embedded Bus - A sleep protocol is provided for controlling sleep mode in a device having a receive port and a transmit port. A location is established in a map of locations in the device as a sleep/wake control location. When the device receives a command to store a sleep value in the sleep/wake control location, this indicates there is no pending traffic for the receive port. When the device also determines that there is no pending traffic on the transmit port, then the device may enter a low power sleep mode. When the device receives a command to store a wake value in the sleep/wake control location to indicate pending traffic for the receive port, it awakens from sleep mode and responds to the wake command with a reply command to indicate the receive port is ready to receive the pending traffic.07-29-2010
20120124404COMPUTER HAVING ELECTRICITY SAVING FUNCTION - A computer includes a motherboard, a capacitive sensor antenna, a capacitive approach sensor module, and a micro control unit (MCU). The capacitive sensor antenna is used to sense a capacitive signal generated from people adjacent to the computer. The capacitive approach sensor module is used to receive the capacitive signal sensed by the capacitive sensor antenna. The MCU is used to receive the capacitive signal from the capacitive approach sensor module. The MCU outputs a first control signal to a sleep control pin of the motherboard to control the motherboard to enter a sleep state in response to the capacitive signal being less than a predetermined value. The MCU outputs a second control signal to the sleep control pin to control the motherboard to exit from the sleep state in response to the capacitive signal being greater than or equal to the predetermined value.05-17-2012
20100235665System and Method for Enabling Fallback States for Energy Efficient Ethernet - A system and method for enabling fallback states for energy efficient Ethernet (EEE). EEE devices can be designed to support multiple power saving states that impact layers higher than the PHY layer. Typically, these higher levels of power savings would require a greater period of time to accommodate a return to an active state. In a dynamic negotiation process, the receiving device can advertise multiple fallback power saving states to the transmitting device. The transmitting device's allocation of buffering can then determine which of the power saving states would be supported.09-16-2010
20100229013METHOD AND SYSTEM FOR IMPLEMENTING ENERGY EFFICIENT ETHERNET TECHNIQUES IN A MACSEC ENABLED PHY - Aspects of a method and system for implementing energy efficient Ethernet techniques in a MACSec enabled PHY are provided. In this regard, an Ethernet PHY comprising memory may be operable to perform packet processing functions comprising MACSec protocol processing and energy efficient Ethernet (EEE) processing. In this regard, the memory may be utilized for implementing the MACSec protocol processing and energy efficient Ethernet (EEE) processing. The Ethernet packet processing functions may comprise packet inspection, packet generation, and packet modification. The energy efficient Ethernet (EEE) processing may comprise generating and/or inspecting messages for controlling when to transition into and out-of an energy-saving mode. The Ethernet PHY may be operable to monitor signals and/or conditions within the Ethernet PHY and control transitions into and out-of an energy-saving mode based on the monitored signals and/or conditions. The energy saving mode may comprise a low power idle mode and/or a subset PHY mode.09-09-2010
20100218023INFORMATION PROCESSING APPARATUS, METHOD OF CONTROLLING THE SAME, AND STORAGE MEDIUM - An information processing apparatus which is capable of quickly responding to a data access request from an external information processing apparatus without using an external storage device, while enabling appropriate control of the power supply to a circuit including a storage device. The storage device stores a plurality of data items. A power controller controls a state of the power supply to the storage device. A storage section stores identification information for identifying an external device permitted to access data in association with a data item stored in the storage device. The power controller causes electric power supplied to the storage device to be reduced when a CPU detects that the external device identified by identification information is not in a state capable of acquiring the data item stored in the storage device.08-26-2010
20120198259COMMUNICATION DEVICE - In a case where a first condition is met while a communication device may in a high consumption state, the communication device may transit to a first low consumption state. In a case where a second condition is met while the communication device is in a specific state which is one state of the high consumption state and the first low consumption state, the communication device may transit to a second low consumption state. The communication device may be configured to execute a packet process in a case where a receiving process for receiving a packet is executed after the communication device had transited to the first low consumption state. The communication device may be configured not to execute the packet process in a case where the receiving process for receiving the packet is executed after the communication device had transited to the second low consumption state.08-02-2012
20100185886INFORMATION PROCESSING DEVICE - An information processing device of the present invention comprises a main CPU capable of taking at least two states which are an operating state and a sleeping state, a sub-CPU having power consumption lower than that of the main CPU and capable of taking at least two states which are an operating state and a sleeping state, and a process request determining section for determining which of the main CPU and the sub-CPU is caused to execute a process related to a request from a peripheral device. The process request determining section determines whether the main CPU is in the sleeping state or the operating state, and when the main CPU is in the sleeping state, determines whether or not the sub-CPU can be caused to execute the process, and when the main CPU is in the operating state, determines whether or not the main CPU can be caused to execute the process, and depending on a result of the determination, causes the main CPU or the sub-CPU to execute the process.07-22-2010
20090077405AUDIO-VISUAL SYSTEM ENERGY SAVINGS USING A MESH NETWORK - In embodiments of the present invention, improved capabilities are described for powering, controlling, and operating a home audio visual system using a mesh network that includes an energy savings mode based at least in part on intermittently powered mesh network nodes that are associated with the home audio-visual system. In embodiments, the intermittently powered mesh network nodes may periodically wake up, listen for wake up calls and/or initiate a full power mode in the home audio visual system when a intermittently power mesh network node is awakened and receives a subsequent full power instruction. Intermittently powered mesh network nodes may be further associated with instruction routing that utilizes silent acknowledgement.03-19-2009
20090077404Method and system of reducing power consumption of system on chip based on analog-to-digital control circuitry - Methods and system of reducing power consumption of system on chip based on analog-to-digital control circuitry are disclosed. In one embodiment, a method includes converting an analog signal of external device coupled to the system on chip to a digital signal using an analog-to-digital converter (ADC) of the system on chip with a processor of the system on chip in a sleep mode or power down mode. The method further includes waking up the processor of the system on ship to perform an exception event based on a comparison of the digital signal with a threshold value associated with the external device.03-19-2009
20100153760Power Settings in Wireless Ultra-Wide band Universal Serial Bus - Various embodiments enable a host controller, through its Protocol Adaption Layer (PAL) driver, to efficiently manage power consumption by employing “sleep mode” and “active mode” power settings. In some embodiments, the PAL driver may employ sleep mode settings to transition the host controller from an idle state to an energy conserving sleep state. In further embodiments, the PAL driver may use active mode settings to govern communications between the host controller and various devices, such as WUSB devices and others, thereby conserving power.06-17-2010
20100235664ADAPTIVE POWER SAVING - A device may enter a first active state associated with a device, exit the first active state and entering a sleep state associated with the device when user input is not received within a inactivity period, receive a first user input at the device during the sleep state, measure an elapsed time between a start of the sleep state and the first user input, and increase the inactivity period of the device when the elapsed time is less than a particular threshold.09-16-2010
20100241886METHOD AND SYSTEM OF HALTING CONTENT DELIVERY BASED ON NON-DETECTION OF USER INPUT - An approach is provided for determining if video content provided to a device is still being viewed, without disrupting the presentation of the content. A device is monitored for input from the user, wherein the device is configured to present content to the user. A determination is made whether the user input is within a predetermined time period. A control signal is generated to change the presentation of the content without explicitly notifying the user of the change, wherein the presentation of content will cease if the user input is not within the predetermined period.09-23-2010
20100229015Method and Apparatus of Power Management - A power management system for home entertainment networks having three power states. The network controller is empowered to move nodes within the home entertainment network between the power states.09-09-2010
20100218022Processor system and operation mode switching method for processor system - A processor system according to an exemplary aspect of the present invention includes a first processor, a second processor, a control unit, a signal line group, and a selection circuit. The control unit switches an operation mode between a lock step mode for the first and second processors to execute the same instruction stream and a free step mode for the first and second processors to execute different instruction streams. The signal line group includes at least one signal line disposed between a first memory circuit included in the first processor and a second memory circuit included in the second processor. The signal line group is capable of transferring a storage state of the first memory circuit to the second memory circuit. The selection circuit is capable of switching a connection destination of the second memory circuit between the second processor and the signal line group.08-26-2010
20120036381INFORMATION PROCESSING DEVICE, POWER CONTROL METHOD, AND PROGRAM - There is provided an information processing device including a memory, an OS that acquires location information of data stored in the memory, and a BIOS that performs power control to cause the memory to transition to a power saving state with reference to the location information acquired by the OS.02-09-2012
20100235668METHOD AND APPARATUS FOR IMPLEMENTING A SLEEP PROXY FOR SERVICES ON A NETWORK - One embodiment of the present invention provides a system for implementing a sleep proxy. The system starts by receiving a request at the sleep proxy for information pertaining to a service provided by a device. In response to this request, the system determines if the device is a member of a list of devices for which the sleep proxy takes action. If so, the system determines if the sleep proxy can answer the request. If so, the sleep proxy sends a response to the request on behalf of the device. In a variation on this embodiment, if the system cannot answer the request on behalf of the device, the system sends a wakeup packet to the device, wherein the wakeup packet causes the device to exit a power-saving mode so that the device can respond to the request directly.09-16-2010
20100229014MONITORING A COMPUTER - A computer implemented method of monitoring the operational state of a computer, comprises running on the monitored computer a monitoring program configured to monitor a set of parameters. The set of monitored parameters comprises for example the name(s) of any process(es) running on the computer, together with i) the values of a plurality of metrics indicating the level of activity of the computer, and/or ii) time. The monitored parameters are provided by the monitoring program to another, monitoring, computer; which runs a comparison program which compares the set of monitored parameters with a predetermined model which determines whether or not the monitored computer is in a predetermined operational state defined by the model, and produces an indication of whether or not the monitored computer complies with the model.09-09-2010
20100218021Notebook Computer - An exemplary notebook computer includes a smart battery, a number of status indicator lights, a function key and a control unit electrically coupled to the smart battery, the status indicator lights and the function key. In the condition that the notebook computer is situated either in a shutdown mode or in a power saving mode and the function key is pressed, the control unit reads the data of the remaining capacity of the smart battery through a bus between the smart battery and the control unit so as to calculate the remaining capacity of the smart battery. Thus, the control unit can control the status indicator lights to be light on/off to display the information of the remaining capacity of the smart battery.08-26-2010
20100241887Touch display system and control method thereof - A control method is applied to a touch display system. The touch display system includes a display module, a touch module, and a programmable circuit. The programmable circuit is electrically connected between the touch module and the display module for executing the control method. The method includes: the touch module providing a first sense area; detecting whether the first sense area being touched or not; the display module displaying an boot image when the first sense area being touched; providing a second sense area after the boot image being displayed; detecting whether the second sense area being touched or not; and the display module displaying an on-screen display menu when the second sense area being touched, wherein the on-screen display menu includes a power item and a plurality of function items.09-23-2010
20100250988VIDEO DISPLAY SYSTEM, DISPLAY DEVICE, PLUG-IN MODULE AND POWER CONTROL METHOD OF PLUG-IN MODULE - It provides a video display system capable of effective control of power consumption, safe power-off operation, and resetting from a hang-up state by properly setting power supply to a plug-in module in accordance with the operational request and operational status of a digital broadcast receiving device and the plug-in module, a display device, a plug-in module, and a plug-in module power control method. Each of the digital broadcast receiving device and plug-in module includes an authentication part for equipment authentication thereof, CEC communication part for control signal communication, and a video audio transmitter receiver. The digital broadcast receiving device serves for switching the module power supply part for power supply to the plug-in module from standby power to main power in accordance with the control signal after equipment authentication is obtained for the plug-in module.09-30-2010
20090292935Method, System and Apparatus for Power Management of a Link Interconnect - A proposal for power management control of an interconnect structure based on power state transition control. The power state transition is based on generating early warning signals and an idle timeout value setting based on response time and detection of subsequent requests.11-26-2009
20100250987Processing Device - A processing device may comprise a first controlling unit, a second controlling unit, a first memory and a second memory. The second memory may be set to a normal operation mode in a case where the first controlling unit is in the non-sleeping state, and may be set to a low power consumption mode in a case where the first controlling unit is in the sleeping state. In the case where the first controlling unit is in the sleeping state, the second controlling unit may be configured to perform one of the below processes depending on its condition. If the second controlling unit is to perform a specific process by using a first program, the second controlling unit may perform the specific process on behalf of the first controlling unit by using the first program stored in the first memory while the first controlling unit is maintained in the sleeping state and the second memory is maintained in the low power consumption mode. If the second controlling unit is to perform the specific process by using a second program, the second controlling unit may change a mode of the second memory from the low power consumption mode to the normal operation mode, and perform the specific process on behalf of the first controlling unit by using the second program stored in the second memory, while the first controlling unit is maintained in the sleeping state.09-30-2010
20100250986Method and Device for Improving Battery Life of a Mobile Computing Device09-30-2010
20100250985BODY HEAT SENSING CONTROL APPARATUS AND METHOD - Embodiments of the disclosed invention include a body heat sensing control apparatus and method for automating features of an electronic device based on detection of a user's body heat. For example, in one embodiment, a data processing system is disclosed having a heat sensing mechanism for detecting the body heat of a user. In addition, the data processing system includes a data storage component for storing computer executable instructions and a processing unit for executing the computer executable instructions for enabling a user to configure one or more functions associated with the data processing system that are triggered in response to detecting the presence or absence of the user within the proximity of the data processing system using the heat sensing mechanism.09-30-2010
20100131788Motion Sensor Assisted Auto-Shutdown Mechanism in Portable Audio Systems - A mechanism for automatically controlling the power condition of a portable audio system. The mechanism of the illustrative embodiments determines whether a user is interacting with the portable audio player. If no user interaction with the portable audio player is detected, the mechanism of the illustrative embodiments determines whether the portable audio player is moving. If the portable audio player is not moving, an inactivity duration counter in the portable audio player is incremented to an incremented value. Responsive to a determination that the incremented value of the inactivity duration counter meets or exceeds a time duration threshold value, the mechanism of the illustrative embodiments change the power condition of the portable audio player by turning the portable audio player off.05-27-2010
20100115314POWER 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.05-06-2010
20100115313INFORMATION HANDLING SYSTEM WITH INTEGRATED LOW-POWER PROCESSING RESOURCES - An information handling system employs low-power processing. In a particular form, an information handling system can include a processing system configured operate using a power system configured to power a shared resource of the processing system and a non-shared resource of the processing system. The information handling system can also include a low-power processing system configured to access the shared resource of the processing system during operation of the low-power processing system. The operation of the low-power processing system can be separate from the operation of the processing system. The information handling system can also include a chipset including a processor of the processing system and operable to be enabled during operation of the processing system. The processor can be configured to be disabled during operation of the low-power processing system.05-06-2010
20110066868Variably Delayed Wakeup Transition - A computing system includes a controller configured to undergo a variably delayed wakeup transition. The controller is configured to transition a processing module from an idle state to an active state in response to successive assertions of a wakeup interrupt command. The system includes a variable delay module configured to vary delay lengths between assertion and execution of each of the successive wakeup interrupt commands during the wakeup transition to substantially cause power supply components to vibrate in a non-periodic manner.03-17-2011
20090172441HARDWARE PROACTIVE IMPLEMENTATION FOR ACTIVE MODE POWER CONTROL OF PLATFORM RESOURCES - In some embodiments, estimating a duration of an idle period gap of a lower power state of a resource by exponentially smoothing successive idle period gaps. Other embodiments are described and claimed.07-02-2009
20080313480ARCHITECTURE INCORPORATING CONFIGURABLE CONTROLLER FOR REDUCING ON CHIP POWER LEAKAGE - The present invention provides a method and system for controlling leakage power consumption at a System on Chip (SoC) level during a normal run or a boot-up mode. The leakage power reduction is achieved by incorporating a central programmable controller in the SoC architecture and test structures of idle SoC peripherals to place them into an Absolute Minimum Power consumption state with respect to static and dynamic power.12-18-2008
20090113227Method of operation of a portable computer apparatus with thermal enhancements and multiple modes of operation - A portable computer adapted for electrical connection to a docking station having multiple power modes of operation is described. The portable computer has one or more CPU chips which have at least two power modes of operation, a low power mode and a high power mode. When the portable computer is operated as a stand-alone computer, it operates in the low power mode. When the portable computer is operated while electrically connected to the docking station, it operates in a high power mode. The docking station has greater cooling capacity than the portable computer alone to provide enhanced cooling of the high power mode of operation.04-30-2009
20090113228Portable computer systems with thermal enhancements and multiple power modes of operation - A portable computer adapted for electrical connection to a docking station having multiple power modes of operation is described. The portable computer has one or more CPU chips which have at least two power modes of operation, a low power mode and a high power mode. When the portable computer is operated as a stand-alone computer, it operates in the low power mode. When the portable computer is operated while electrically connected to the docking station, it operates in a high power mode. The docking station has greater cooling capacity than the portable computer alone to provide enhanced cooling of the high power mode of operation.04-30-2009
20090113226Portable computer apparatus with thermal enhancements and multiple modes of operation - A portable computer adapted for electrical connection to a docking station having multiple power modes of operation is described. The portable computer has one or more CPU chips which have at least two power modes of operation, a low power mode and a high power mode. When the portable computer is operated as a stand-alone computer, it operates in the low power mode. When the portable computer is operated while electrically connected to the docking station, it operates in a high power mode. The docking station has greater cooling capacity than the portable computer alone to provide enhanced cooling of the high power mode of operation.04-30-2009
20110239025System and Method for Adapting a Power Usage of a Server During a Data Center Cooling Failure - A device comprising a temperature measurement module, a performance state module, and a fan speed module. The temperature measurement module is configured to determine a temperature in a server, and to output a first control signal when temperature in the server is above a threshold. The performance state module is configured to change a performance state of the device to a lowest system performance state in response to the first control signal, and further configured to reduce a processor power consumption and a subsystem power consumption to a minimum power level in response to reducing the performance state to the lowest system performance state. The fan speed module is configured to reduce a fan speed to a minimum fan speed level based on the first control signal.09-29-2011
20110239019METHOD AND SYSTEM FOR MANAGING POWER CONSUMPTION OF A COMPUTING DEVICE - A power-state management module in any operating environment manages power consumption of a computing device in a power-on mode. The disclosed system and method based on predetermined criteria, classify computing device activity and switch the computing device from the power-on mode to either a hibernate mode or a shut down mode. The predetermined criteria include inactive computing device time compared to a predetermined time period and operational processes present in an exemption list of processes.09-29-2011
20080282102Maintaining Optimum Voltage Supply To Match Performance Of An Integrated Circuit - Power supply voltage to an integrated circuit (IC) or a portion of an IC is maintained at an optimum level matching the IC performance. Voltage ranges and delay measures for corresponding operating frequencies are stored in tables in a voltage control block. When a new frequency of operation is desired, the voltage control block measures delay performance of the IC, and sets the supply voltage to a value specified in a corresponding entry in a table. The voltage control block then continues to measure delay performance, and dynamically adjusts the power supply voltage to an optimum value thereby minimizing power consumption.11-13-2008
20080270811Fast Suspend-Resume of Computer Motherboard Using Phase-Change Memory - A personal computer motherboard has a main memory of phase-change-memory (PCM) chips in PCM memory modules. An operating system (OS) image is stored in the PCM memory modules and is retained during suspend since the PCM chips are non-volatile. The microprocessor can directly read the OS image retained in the PCM memory modules without copying an OS image from a hard disk to the main memory upon resume. Therefore a boot loader program in the boot ROM does not have to be fetched to the microprocessor for suspend/resume. The video memory can also be PCM, allowing the frame buffer to be retained during suspend/resume, yet be directly addressable by the microprocessor. The display is quickly activated since the frame buffer does not have to be re-constructed after suspend/resume. PCM cells use amorphous and crystalline states of a variable resistor to store data.10-30-2008
20120144220MODULAR GATING OF MICROPROCESSOR LOW-POWER MODE - A method of operating an electronic device includes determining whether one or more operating conditions for allowing the electronic device to operate in a low-power mode are satisfied, preventing the electronic device from operating in the low-power mode if fewer than all of the operating conditions are satisfied, and causing the electronic device to operate in the low-power mode if all of the operating conditions are satisfied.06-07-2012
20110119511SYSTEM FOR MANAGING POWER OF PERIPHERAL COMMUNICATIONS BY AUTOMATICALLY CLOSING COMMUNICATIONS CHANNEL IMMEDIATELY AFTER FINISHING A COMMUNICATION WITH A PERIPHERAL DEVICE - An improved method and apparatus manages communications port contention and power consumption for a handheld computer, particularly handheld computers with a communications protocol that boosts power consumption when active, such as an RS-232 protocol. The improved method provides communications channel management that automatically opens the communications channel in response to a wake-up signal sent to a handheld computer from a peripheral device. The computer peripheral device is explicitly and/or implicitly identified. The opened communications channel is closed in response to receiving some data from the peripheral device, and/or after a device timeout expires without the handheld computer receiving data from the computer peripheral device.05-19-2011
20100306564INFORMATION PROCESSING APPARATUS AND CONTROL METHOD OF INFORMATION PROCESSING APPARATUS - According to one embodiment, an information processing apparatus from which a display module is detachable, the apparatus includes a processor configured to executes arithmetic processing, a controller configured to communicate with an external device, a detector configured to detect an attachment and a detachment of the display module, a determination module configured to determine whether the apparatus is permitted to be switched to a sleep state when the detector detects the detachment, a switching module configured to switch the apparatus to the sleep state when the determination module determines that the apparatus is permitted to be switched to the sleep state, and a lock module configured to inhibit a communication between the external device and the controller and to invalidate an input of data from an input device to the processor when the determination module determines that the apparatus is not permitted to be switched to the sleep state.12-02-2010
20100306563COMPUTER SYSTEM FOR SAVING POWER CONSUMPTION OF A STAND-BY/POWER-OFF STATE AND METHOD THEREOF - A computer system consists of a plurality of electronic elements and a switch control circuit. The switch control circuit controls the computer system to enter a stand-by/power off state from a normal state when the computer system receives a stand-by/power off command under the normal state, and stops outputting a stand-by power having at least one stand-by voltage level to at least one part of electronic elements among the plurality of electronic elements. At this time, the computer system has entered a simulated mechanical off state from the stand-by/power off state. A number of electronic elements supplied by the stand-by power when the computer system lies under the simulated mechanical off state is smaller than a number of electronic elements supplied by the stand-by power when the computer system lies under the stand-by/power off state.12-02-2010
20130132750ELECTRONIC DEVICE AND METHOD FOR UPDATING A TIME IDENTIFIER ASSOCIATED THEREWITH - An electronic device includes an input device, an output device, a memory capable of storing an alert, and a processor coupled with the input device, the output device and the memory. The processor is configured to identify a current time, receive a command to switch the electronic device from a first operating mode to a second operating mode, and identify a record in a data-store. The record stores a first time identifier. The processor is further configured to identify a second time identifier. The processor automatically changes the second time identifier to be sooner than or equal to the first time identifier, automatically switches the electronic device from the second operating mode to the first operating mode when the current time matches the second time identifier, and presents the alert via the output device when the current time matches the first time identifier.05-23-2013
20130132753INFORMATION PROCESSING DEVICE AND METHOD - An information processing device comprises a first memory, a second memory, data transfer circuitry, power gating circuitry, and a controller. The first memory comprises at least two volatile memory units The controller receives or generates a request for setting the information processing device into a reduced power mode; in response to the request, it selects specific memory units among the memory units; controls the data transfer circuitry to transfer data from the selected memory units to the second memory; and controls the power gating circuitry to power down the selected memory units.05-23-2013
20130132755POWER MANAGEMENT OF LOW POWER LINK STATES - A method and apparatus for intelligent power management for low power link states. Some embodiments include methods, apparatuses, and systems for a device coupled to a controller via a link; a link power management engine to alter a power state of the link based on a transaction and some knowledge of future transactions between the device and the controller; and a memory or logic to store the link power management engine. In some embodiments, the memory stores information about at least one of the following: the power state of the link, the device buffering, the controller or device state or a history of transactions. In some embodiments, the device is a peripheral of a computer system. In some embodiments, the method may include transitioning the device to various link states. Other embodiments are described.05-23-2013
20100318824STORAGE DEVICE WITH ADVANCED POWER MANAGEMENT - In a particular embodiment, a data storage device includes a controller. The controller includes device performance management logic to retrieve an advanced power management (APM) setting from an APM register of a host system. The APM register includes a plurality of register settings adapted to represent a respective plurality of APM settings. The controller further includes policy selection logic to select at least one storage device (SD) policy from a plurality of SD policies based on the determined APM setting and configuration logic to apply the selected at least one SD policy to adjust at least one of a performance characteristic and a power characteristic associated with first and second data storage media.12-16-2010
20110145617SYSTEM AND METHOD FOR CONTROLLING CENTRAL PROCESSING UNIT POWER WITH GUARANTEED TRANSIENT DEADLINES - A method of controlling power at a central processing unit is disclosed. The method may include moving to a higher CPU frequency after a transient performance deadline has expired, entering an idle state, and resetting the transient performance deadline based on an effective transient budget.06-16-2011
20110145616SYSTEM AND METHOD FOR CONTROLLING CENTRAL PROCESSING UNIT POWER IN A VIRTUALIZED SYSTEM - A method of dynamically controlling power within a multicore central processing unit is disclosed and includes executing a plurality of virtual cores, virtually executing one or more tasks, one or more threads, or a combination thereof at the virtual cores, and physically executing one or more tasks, one or more threads, or a combination thereof at a zeroth physical core. The method may further include receiving a degree of parallelism in a workload of a plurality of virtual cores and determining whether the degree of parallelism in the workload of the virtual cores is equal to a first wake condition.06-16-2011
20110145615SYSTEM AND METHOD FOR CONTROLLING CENTRAL PROCESSING UNIT POWER BASED ON INFERRED WORKLOAD PARALLELISM - A method of dynamically controlling power within a multicore CPU is disclosed and may include receiving a degree of parallelism in a workload of a zeroth core and determining whether the degree of parallelism in the workload of the zeroth core is equal to a first wake condition. Further, the method may include determining a time duration for which the first wake condition is met when the degree of parallelism in the workload of the zeroth core is equal to the first wake condition and determining whether the time duration is equal to a first confirm wake condition. The method may also include invoking an operating system to power up a first core when the time duration is equal to the first confirm wake condition.06-16-2011
20130138987METHOD FOR ENTERING IDLE MODE AND MOBILE TERMINAL FOR IMPLEMENTING SUCH METHOD - The present invention discloses a method for entering into an idle mode comprising: a mobile terminal getting ready to enter into an idle state; and determining whether a data connection exists currently, and if the data connection exists, sending a connection release message to a network side, and the mobile terminal entering into the idle state after receiving a reply message, if the data connection does not exist, the mobile terminal entering into the idle state directly. The present invention further discloses a mobile terminal to which the method is applied. Using the method and mobile terminal described above, the mobile terminal can enter into the idle state directly, thereby avoiding waste of electricity in the state transition process and extending the idle time of the mobile terminal.05-30-2013
20100325459PEER-TO-PEER GROUP OWNER ENHANCED POWER MANAGEMENT - A device includes a peer-to-peer group owner processor. The device also includes a memory coupled to the peer-to-peer group owner processor. At least one client associated with the device is a legacy client, and the peer-to-peer group owner processor enters a listening state after a dozing state. The device consumes less power in the listening state than in an awake state.12-23-2010
20100325458ELECTRIC DEVICE - An electric device is capable of operating in a normal operation mode and a power save operation mode. The electric device includes a first processor for processing information input externally in the normal operation mode, and a second processor for processing an internal operation of the electric device in the normal operation mode. The second processor consumes power smaller than that of the first processor. In the electric device, power of the first processor is restricted through a restriction process in the power save operation mode. Further, in the power save operation mode, the second processor restricts the internal operation and processes the information input externally. When the second processor detects the information input externally, power of the first processor is released through a restriction releasing process.12-23-2010
20100325457Quiescent State Retention Mode for Processor - A quiescent state retention mode (QSRM) permits minimal power consumption and dissipation by an electronic device while idle without producing adverse latencies to users or causing system instability. Upon a call to enter the QSRM, processes may be frozen, clocks may be gated, switching regulators may be placed in low power mode, SDRAM may be placed into self-refresh mode, caches may be flushed, IRQs may be disabled, and the system waits for interrupt to wakeup. In the QSRM, powered components include the switching regulator configured to provide power to the processor is maintained in a low power mode while the SDRAM is placed in self-refresh.12-23-2010
20130145192COMPUTER AND CONTROL METHOD THEREOF - A computer includes a CPU and a system unit, and further includes a power source which generates source power, a system driving power generator which converts the source power to system power and which provides power to the system unit, a CPU driving power generator which outputs driving power to drive the CPU, and a controller which selectively supplies the source power or the system power to an input terminal of the CPU driving power generator according to an operation mode of the CPU. Thus, a computer adjusts a level of power supplied to a CPU driving power generator according to a CPU mode and improves power efficiency, and includes a control method thereof.06-06-2013
20090138738METHOD FOR AUTOMATICALLY SWITCHING POWER STATES - A method for automatically switching power states is disclosed. According to the method, when an electronic apparatus is in a power-saving state and a waking up time is reached, the electronic apparatus is switched into a working state, and when an executing time is reached, the electronic apparatus automatically executes an assigned function. After completing the assigned function, the electronic apparatus is switched back into the power-saving state for energy-saving purpose.05-28-2009
20100332878INFORMATION PROCESSING APPARATUS, CONTROL METHOD OF INFORMATION PROCESSING APPARATUS, AND PROGRAM - In an information processing apparatus which is connected to a Web server and equipped with a Web browser for displaying an operation screen provided by the Web server and a processing unit for processing image data, an access from the Web browser to the Web server is detected, and, in a case where the Web browser accesses to the Web server, the processing unit is activated according to a content of the detected access.12-30-2010
20100332876REDUCING POWER CONSUMPTION OF COMPUTING DEVICES BY FORECASTING COMPUTING PERFORMANCE NEEDS - Techniques and systems are provided that work to minimize the energy usage of computing devices by building and using models that predict the future work required of one or more components of a computing system, based on observations, and using such forecasts in a decision analysis that weighs the costs and benefits of transitioning components to a lower power and performance state. Predictive models can be generated by machine learning methods from libraries of data collected about the future performance requirements on components, given current and recent observations. The models may be used to predict in an ongoing manner the future performance requirements of a computing device from cues. In various aspects, models that predict performance requirements that take into consideration the latency preferences and tolerances of users are used in cost-benefit analyses that guide powering decisions.12-30-2010
20100332877METHOD AND APPARATUS FOR REDUCING POWER CONSUMPTION - A system, apparatus, method and article to reduce power consumption are described. The method may include receiving a power management request for a reduced power consumption state from each of a plurality of processors. A power management request for the reduced power consumption state may be sent to a controller to cache data. Each of the plurality of processors may be instructed to enter the reduced power consumption state. An interrupt may be received to return to an active power consumption state. A power management request may be sent to the controller to flush cached data into a memory. Each of the plurality of processors may be instructed to enter the active power consumption state. Other embodiments are described and claimed.12-30-2010
20120246502INFORMATION PROCESSING APPARATUS, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM - The information processing apparatus generates and notifies, in the first power state, a prohibition condition for prohibiting the information processing apparatus from returning to the first power state even if an interface unit has received data from an external apparatus in the second power state and the received data matches a return condition for causing the information processing apparatus to return from the second power state to the first power state. When data is received from the external apparatus in the second power state, if the received data matches the prohibition condition, the interface unit does not transmit a return command to the power control unit, and if the received data does not match the prohibition condition, the interface unit transmits the return command to the power control unit.09-27-2012
20110010572NOTEBOOK COMPUTER AND POWER-SAVING METHOD THEREOF - The infrared sensor detects whether presence of a human body within a predetermined range of a front of the notebook computer, and outputs a level signal according to the detecting result. The south bridge chip receives the level signal from the infrared sensor and outputs the level signal. The basic input/output system (BIOS) chip storages a sleep signal and a wake-up signal, and reads the level signal from the south bridge chip and selectively outputs the sleep signal or the wake-up signal according to the level signal. The memory receives the sleep signal or the wake-up signal from the BIOS chip and stores the sleep signal or the wake-up signal. The center processing unit (CPU) reads the sleep signal or the wake-up signal from the memory and controls the notebook computer to enter into a sleep state or a wake-up state.01-13-2011
20110119512METHOD AND APPARATUS FOR WAKING UP A SLEEPING SYSTEM - One embodiment of the present invention provides a system that wakes up a sleeping target system located on a target LAN (Local Area Network) from a remote system located on a remote LAN. Because the sleeping target system is in a sleep state, it receives packets of a lower-layer protocol which cannot be used by the remote system to directly send packets to the sleeping target system. During operation, the remote system creates a wake-up packet. The remote system then uses a second protocol to send the wake-up packet to a relay agent located on the target LAN. Upon receiving the first wake-up packet, the relay agent uses the lower-layer protocol to send a second wake-up packet to the sleeping target system, which causes the sleeping target system to wake up.05-19-2011
20110119510APPARATUS AND METHOD FOR REDUCING POWER CONSUMPTION IN PORTABLE TERMINAL - An apparatus and method for reducing power consumption in a portable terminal are provided. The apparatus includes a mode manager for, if determining data reception before sleep mode entry, processing to convert a state of a controller into a wakeup state and to complete the data reception and, if determining data non-reception before the sleep mode entry, converting a state of the controller into a sleep state at the same time as the sleep mode entry.05-19-2011
20110055606COMPUTER SYSTEM, INTEGRATED CHIP, SUPER IO MODULE AND CONTROL METHOD OF THE COMPUTER SYSTEM - A computer system including a wireless module and a super IO module is provided. The wireless module communicates with a mobile device to detect whether the mobile device is within a predetermined distance to the computer system. The super IO module electrically coupled to the wireless module manages the status of the computer system based on the distance of the mobile device. If the mobile device moves away from the range of the predetermined distance, the super IO module sends a first management signal to switch the computer system to an inactive state. Conversely, if the mobile device moves into the range of the predetermined distance while the computer system is in an inactive status, the super IO module sends a second management signal to switch the computer system back to a normal operation status or power up the computer system.03-03-2011
20110213996POWER CONTROL SYSTEM AND CONTROL METHOD FOR THE SAME - Provided is technology for enabling power saving control that allows a change of control content according to a user selection in a power control system that saves power consumed by an information processing apparatus. The power control system of the present invention include an image processing apparatus 09-01-2011
20110145614DATA PROCESSING APPARATUS - A data processing apparatus comprises: a receiving unit configured to receive input data including processing-target data from outside; a measuring unit configured to measure a data amount of the processing-target data included in the received input data; a data processing unit configured to perform predetermined processing on the processing-target data, and to output a result of the processing as output data; and a control unit configured to set the data processing unit to an active state based on reception of the input data by the receiving unit, and when a data amount of the output data reaches a data amount of data obtained by performing the predetermined processing on data of the data amount measured by the measuring unit, to set the data processing unit to a sleep state.06-16-2011
20100250989METHOD AND APPARATUS FOR A COMPUTING SYSTEM HAVING AN ACTIVE SLEEP MODE CPU THAT USES THE CACHE OF A NORMAL ACTIVE MODE CPU - A method is described that involves storing active sleep mode software instructions to be executed by a low end central processing unit into an on chip cache that caches normal active mode software instructions executed by a high end central processing unit. The active sleep mode software instructions are to be executed by the low end central processing unit during an active sleep mode. The normal active mode software instructions are executed by the high end central processing unit during a normal active mode. The active sleep mode consumes less power than the normal active mode.09-30-2010
20100235666METHOD FOR DETERMINING SWITCHING OF SLEEP MODE, COMPUTER PROGRAM PRODUCT FOR PERFORMING THE METHOD, AND RECORDING MEDIUM FOR THE COMPUTER PROGRAM PRODUCT - A method for determining switching of the sleep mode for a device is provided. The device and a base station have several connections therebetween. In the determining method, one of the connections is first provided and it is determined whether the connection is realtime or non-realtime. It is then determined whether or not the realtime and non-realtime connections satisfy the condition for entering the sleep mode according to a first condition and a second condition, respectively. If the connection does not satisfy the condition for entering the sleep mode, the device enters the normal mode. If the connection satisfies the condition for entering the sleep mode, then the foregoing steps are repeated till the connections have all been checked. If all of the connections satisfy the condition for entering the sleep mode, the device enters the sleep mode.09-16-2010
20100131789INFORMATION PROCESSING APPARATUS AND POWER SUPPLY CONTROL METHOD - In standby mode, memory contents are saved to a hard disk. After AC power has been removed by disconnecting the AC plug, when the AC power is restored the data saved on the hard disk is automatically restored into memory to set the power-saving mode back to the standby mode. When the power is turned on next, quick resumption from standby mode can be accomplished.05-27-2010
20090089600Power supply efficiency optimization - Methods and apparatus operative in a portable electronic device having a processor and a switching mode power supply detect entry of the processor into a power saving mode during active operations and signal the switching mode power supply that the processor has entered a power saving mode. In response to the signaling the switching mode power supply optimizes its operating state in order to increase power supply efficiency.04-02-2009
20110087910Auxiliary Power Shutdown - An auxiliary power control system for enabling a software command that a management controller sends to the power supply to shut down auxiliary power. Such a power control system enables an AC cycle without needing to physically remove an AC power cord and provides additional power savings when a system is not in use. In certain embodiments, the auxiliary power control system includes a paradigm of a main power state, an auxiliary power state and a sub-auxiliary state. In this system many of the power states and wake vents apply to the auxiliary power state in addition to the main power state.04-14-2011
20090327779ENERGY CONSERVATION IN MULTIPATH DATA COMMUNICATIONS - A method, system, and computer usable program product for energy conservation in multipath data communications are provided in the illustrative embodiments. A current utilization of each of several of I/O devices is determined. A violation determination is made whether an I/O device from the several I/O devices can be powered down without violating a rule. The I/O device is powered down responsive to the violation determination being false. A powering up determination may be made whether an additional I/O device is needed in a multipath I/O configuration. The I/O device may be located, powered up, and made available for multipath I/O configuration. A latency determination may be made whether a latency time of the I/O device can elapse before the time when the additional I/O device is needed. The powering on may occur no later than the latency time before the time the additional I/O device is needed.12-31-2009
20090313493INFORMATION PROCESSING APPARATUS AND CONTROL METHOD THEREFOR - An information processing apparatus which operates in one of a normal power state and a plurality of power saving states, includes a storage unit to store power saving information that designates one of the plurality of power saving states, an acquisition unit to acquire from the connected peripheral device identification information for identifying the peripheral device, a specification unit to specify the power saving information associated with the acquired identification information based on the identification information and the setting information, and a control unit to control the apparatus to shift to the power saving state designated by the power saving information to the power saving state that is designated by the specified power saving information.12-17-2009
20090217071DATA PROCESSING DEVICE AND METHOD FOR SWITCHING STATES THEREOF - The present invention provides a data processing device and a method for switching states thereof. The data processing device comprises an operating system and a communication interface for communicating with another data processing device, wherein the communication interface is enabled when the operating system stays in the operating state of the operating system, and the communication interface is disabled when the operating system stays in a low-power-consumption state. The method for switching states comprises the following steps of: detecting whether the communication interface stays in the operating state of the communication interface and generating detection information; determining whether the operating system stays in the operating state of the operating system when the detection information indicates that the communication interface stays in the operating state of the communication interface, and generating determination information; generating a system state holding command when the determination information indicates that the operating system stays in the operating state of the operating system; and controlling the operating system to stay in the operating state of the operating system based on the system state holding command. The present invention can not only secure communication via the data communication interface, but also allow the operating system to handle normally and stably an interrupt, so as to reduce the system power consumption.08-27-2009
20110179299Power Management In A System Having A Processor And A Voltage Converter That Provide A Power Voltage To The Processor - A system has a processor and a voltage converter to provide a power voltage to the processor. The processor is able to transition among different power modes, Wherein the voltage converter receives indications to specify different voltage levels of the power voltage for at least two of the power modes. A controller detects a transition of the processor to a tower one of the power modes, and in response to detecting transition of the processor to the lower one of the power modes, disables at least one portion of the voltage converter.07-21-2011
20100064158METHOD AND CONTROLLER FOR POWER MANAGEMENT - Resuming from a sleep state. A request may received to resume operation of a computer system from a sleep state to an executing state. A restoring process may be initiated to restore the computer system to an executing state. The restoring process may include loading information from a nonvolatile memory medium to a computer system memory medium. A request may be received from a processor of the computer system to access the computer system memory medium. The request may require access to a portion of the computer system memory medium in the executing state, and may be received prior to completion of the restoring process. It may be determined if the portion of the computer system memory medium has been restored. If the portion of the computer system memory medium has not been restored, the portion of the computer system memory medium may be restored from the nonvolatile memory medium ahead of other portions in the restoring process.03-11-2010
20110107130METHOD AND DEVICE FOR WAKING USERS OF A BUS SYSTEM, AND CORRESPONDING USERS - A device for waking up users of a bus system includes an evaluator having at least one clock-pulse generator and configured to selectively evaluate the wake-up information used to activate the users. The wake-up information to be evaluated has the structure of a standard CAN message. The activating procedure is initiated only in response to the presence of wake-up information that is specified for the respective user.05-05-2011
20110252258HARDWARE ACCELERATION APPARATUS, METHOD AND COMPUTER-READABLE MEDIUM EFFICIENTLY PROCESSING MULTI-CORE SYNCHRONIZATION - Provided is a hardware acceleration apparatus, method and computer-readable medium efficiently processing multi-core synchronization. A processor core that fails to acquire a lock variable may be switched to a low power sleep mode and a waste of power may be reduced. Additionally, when a lock variable is returned, a wakeup signal may be transmitted to a processor core operated in the low power sleep mode, and the processor core may be activated.10-13-2011
20110083026INFORMATION PROCESSING APPARATUS, AND POWER SUPPLY CONTROL METHOD FOR INFORMATION PROCESSING APPARATUS - An information processing apparatus, if a shift condition for shifting a power state of the information processing apparatus to a power-saving state is satisfied, performs control to reduce power supply to an access control unit and a plurality of storage units. If an execution state of a specific operation is in progress even when the shift condition has been satisfied, the information processing apparatus performs control not to reduce power supply to the access control unit and the plurality of storage units.04-07-2011
20110154082I/O CO-PROCESSOR COUPLED HYBRID COMPUTING DEVICE - An apparatus and method provide power to perform functions on a computing device. In one example, the apparatus contains multiple processors that may operate at different power levels to consume different amounts of power. Also, any of the multiple processors may perform different functions. For example, one processor may be a low power processor that may control or operate at least one peripheral device to perform a low capacity function. Control may also switch from the low power processor to a high capacity processor. In one example, the high capacity processor controls the low power processor and further controls the at least one peripheral device through the lower power processor.06-23-2011
20110154080METHOD AND APPARATUS FOR I/O DEVICES ASSISTED PLATFORM POWER MANAGEMENT - Embodiments of an apparatus, system and method are described for input/output (I/O) device assisted platform power management. An apparatus may comprise, for example, power management logic operative to receive idle duration information from one or more input/output (I/O) devices and to modify a power state for one or more components based on the idle information. Other embodiments are described and claimed.06-23-2011
20110078478METHOD AND APPARATUS FOR TRANSITIONING DEVICES BETWEEN POWER STATES BASED ON ACTIVITY REQUEST FREQUENCY - A method for transitioning power states in a device includes designating a first reduced power state as a target power state. A first expected residency for the target power state is determined based on a counting of activity requests associated with the device. The device is transitioned to the target power state responsive to the expected residency satisfying a first predetermined threshold.03-31-2011
20110083027CONTROLLER FOR IMAGE PROCESSING APPARATUS - A controller for an image processing apparatus, which has a function of switching a plurality of operation modes, includes a CPU of which number of times the power is turned ON/OFF in a range where operations are guaranteed is previously defined, a processor which performs a specified processing, a sub CPU, and other devices, the controller having a normal mode, a first power saving mode in which the power consumption is smaller than that in the normal mode, a second power saving mode in which the power consumption is smaller than that in the first power saving mode, and a third power saving mode in which the power consumption is smaller than that in the second power saving mode.04-07-2011
20120303989INFORMATION PROCESSING APPARATUS AND METHOD OF CONTROLLING LAUNCH THEREOF - An information processing apparatus is capable of quick launch, in which information of memory is held and the apparatus is launched using the information, and includes an RTC that keeps the time and generates an interrupt at a set time. The apparatus detects whether or not there is an instruction to turn a power supply on or off, and if an instruction to turn the power off is detected, determines whether or not the quick launch is active. If it is determined that the quick launch is active, the apparatus sets an interrupt generated by the RTC inactive.11-29-2012
20110072288Centralized Service for Awakening a Computing Device - Various technologies and techniques are disclosed for providing and interacting with a centralized wake service. A server-side wake service is provided that is operable to allow applications to subscribe to the wake service. The wake service receives a wake request directed to a particular computing device from a particular one of the applications. The wake request is forwarded from the wake service to a client-side communication service on the particular computing device if forwarding is determined to be appropriate. When the client-side communication service on the particular computing device receives the wake request while in a reduced power mode, the computing device wakes up and an appropriate response is determined.03-24-2011
20110072286POWER CONTROLLED NETWORK DEVICES FOR SECURITY AND POWER CONSERVATION - The present invention provides method and systems for activating or deactivating network devices by managing the power of the network device. By controlling the power for network devices, the size and coverage of the network can be adjusted to meet the needs for the current usage. This can be particularly advantageous in wireless networks where multiple wireless access points may be provided to provide coverage during peak usage but present the additional security concern of the network being accessible to unauthorized users. Being able to power down unneeded wireless access points during off-peak usage allows for the minimization of such potential security concerns.03-24-2011
20110252259Method and apparatus for managing power of portable information device - Provided are a method and apparatus for managing power of a portable information device. The apparatus includes: a display unit displaying a power management mode picture when a wake-up signal is input during a low-power consumption state of the portable information device; and a processing unit setting the portable information device again in the low-power consumption state when a user's input, as a response to the power management mode picture, is not received within a predetermined time after the power management mode picture is output to the display unit. Accordingly, even when a button on the portable information device is accidentally pressed, battery thereof can be prevented from being needlessly consumed.10-13-2011
20110252256METHODS, SYSTEMS, AND COMPUTER PROGRAM PRODUCTS FOR MANAGING AN IDLE COMPUTING COMPONENT - Methods and systems are described for managing an idle computing component. In one aspect, an idle period is detected for an addressable entity included in an application process and stored in a processor memory defined by an address space of an IPU in an application process. The addressable entity is not accessed by an IPU for executing during the idle period. A determination is made that specified idle condition is met for the idle period. The addressable entity is removed from the processor memory in response to the determination that the idle condition is met.10-13-2011
20110252257System and Method for Energy Efficient Ethernet Enhanced Information Technology Power Management Tools - A system and method for energy efficient Ethernet (EEE) enhanced information technology power management tools. EEE-based computing center resources are designed to monitor energy savings events hardware components (e.g., physical layer device) included within the computing center resource. Energy saving statistics based on such monitoring can be provided to a power management tool. This monitoring information enables the power management tool to make broad service-level energy savings decisions on actual network activity. In addition, feedback based on the broad service-level energy savings decisions can be provided to the EEE-based computing center resources for consideration by their individual EEE control policies.10-13-2011
20110060928Method and Apparatus for Disabling a Device - A method of operating a device is provided. The method includes transitioning the GPU to a substantially disabled state in response to a first received signal, and generating, while the GPU is in the substantially disabled state, a response signal in response to a second received signal. The response signal is substantially similar to a second response signal that would be generated by the GPU in a powered state in response to the second received signal.03-10-2011
20110060929IMAGE FORMING APPARATUS, SYSTEM ON CHIP UNIT AND DRIVING METHOD THEREOF - An image forming apparatus which is connected to a host apparatus, the image forming apparatus including a first memory, a second memory, a universal serial bus (USB) interface to receive a USB control signal or a USB data signal from the host apparatus, and a central processing unit (CPU) operating in a normal mode using the first memory or a power saving mode using the second memory. If the USB data signal is input in the power saving mode, the CPU activates the first memory and converts the power saving mode into the normal mode, and, if the USB control signal is input in the power saving mode, the CPU retains the power saving mode and performs an operation corresponding to the USB control signal using the second memory. Accordingly, the power saving mode is realized effectively.03-10-2011
20130166932SYSTEMS AND METHODS OF EXITING HIBERNATION IN RESPONSE TO A TRIGGERING EVENT - A method may be performed by an electronic device coupled to a volatile system memory. The method includes entering a hibernation mode of the electronic device, where in the hibernation mode, the volatile system memory is powered off. The method further includes detecting a triggering event and, in response to detecting the triggering event, exiting the hibernation mode. While exiting the hibernation mode, the volatile system memory is powered and a pre-hibernation state of the volatile system memory is restored.06-27-2013
20100262853INFORMATION PROCESSING APPARATUS, METHOD FOR CONTROLLING INFORMATION PROCESSING APPARATUS, AND RECORDING MEDIUM - An information processing apparatus that shortens the waiting time that a user feels when restoration from a hibernation state is performed, a method for controlling the same, and a recording medium are provided. To accomplish this, when restoration from a power saving state (hibernation state) is performed, the information processing apparatus of the present invention restores only an operating system (OS) to a state of an execution in a main storage memory (RAM), and thereafter restores processes in the OS to a state of an execution. Further, the OS sequentially transfers images of the processes to the RAM from a non-volatile storage apparatus, and resumes execution of the processes from a process for which transfer is complete.10-14-2010
20120151234METHOD AND APPARATUS FOR MESSAGE HANDLING DURING POWER SAVING MODES - A method for implementing a sleep control that includes the steps of receiving a message from a sending block via a messaging bus, wherein the message is destined for a receiving block; determining whether the receiving block is awake; and delaying further transmission of the message until the receiving block is awake. An apparatus for performing the method is also disclosed.06-14-2012
20110161708PRIMARY SIDE CONTROL CIRCUIT AND METHOD FOR ULTRA-LOW IDLE POWER OPERATION - A method and circuit for reducing power consumption during idle mode to ultra-low levels, such as about 1/1006-30-2011
20100262854MANAGEMENT OF POWER STATES IN A PORTABLE COMPUTING DEVICE - Embodiments of the present invention provide a method and apparatus for managing power states in a personal computing device, while maintaining a perception by the user of “instant on” functionality. In various embodiments of the invention, the power states are presented to the user as a simple on/off option and the power management protocol is not visible within the user interface of the personal computing device thereby providing the user with the impression that the system is operating with a simple binary on/off protocol. In one embodiment of the invention, the personal computing device is operable to transition between a set of power states that include: 1) an “on” power state wherein the display is on and the customer can use all input devices; 2) a “ready” state wherein the display is turned off, but some modules, such as a radio module, remain on; 3) an “off” state wherein the personal computing device turns off after a slight pause, but a “booted kernel” is held in SDRAM; and 4) a “dead” state wherein none of the modules of the personal computing device are powered and the device must be cold booted to restart.10-14-2010
20080229131Storage System and Management Information Acquisition Method for Power Saving - The object of the invention is to control the power consumption in a storage subsystem. In a storage system, when a monitor in a host computer acquires information concerning a storage region to manage the storage region, a monitor in the host computer checks whether or not the power supply state in the storage region is ‘on’ based on a storage region information that stores first information indicating whether or not the power supply state in the storage region is ‘on’ and second information concerning the storage region, and acquires the second information from the storage region information table if the power supply state in the storage region is not ‘on’.09-18-2008
20110258470ELECTRONIC DEVICE AND POWER CONSUMPTION MEASURING METHOD THEREOF - An embodiment is directed to an electronic device, including a power management device, the power management device generating a plurality of powers according to power management information, and a processor, the processor including a plurality of power blocks supplied with the plurality of powers through a plurality of power lines, and including a power consumption measurement block that measures power consumption of respective power blocks of the plurality of power blocks.10-20-2011
20080229130Power reduction for system on chip - Disclosed herein are SOC devices with peripheral units having power management logic.09-18-2008
20100058088Computer System and Method for Energy-Saving Operation of a Computer System - A computer system has at least one supply device, at least one system component with a data-processing device and at least one communications device. The supply device has at least one programmable control module that is supplied with an operating energy by a voltage source coupled to the at least one supply device and operated independently thereof.03-04-2010
20090327780Systems, Methods and Media for Reducing Power Consumption in Multiple Controller Information Handling Systems - An information handling system (IHS) provides a method for conserving power. The method includes monitoring at least one performance characteristic of the IHS and determining if the at least one performance characteristic is below a low performance threshold. If the at least one performance characteristic is below the low performance threshold, a first controller is switched into a low power mode, wherein a first set of logical unit numbers (LUNs) are reassigned to a second controller.12-31-2009
20120204048MECHANISM FOR LOW POWER STANDBY MODE CONTROL CIRCUIT - Embodiments of the invention are generally directed to a low power standby mode control circuit. An embodiment of an apparatus includes a processor, an interface for a connection with a second apparatus, and an operational circuit, wherein the processor is to disable one or more power connections to the operational circuit in a standby mode. The apparatus further includes a standby mode control circuit, the standby control circuit to operate using a standby power source, wherein the standby mode control circuit is to detect a stimulus signal from the second apparatus and in response to the stimulus signal the standby control circuit is to signal the processor, the processor to enable the one or more power connections of the operational circuit.08-09-2012
20120204046POWER-SUPPLY CONTROL DEVICE, IMAGE PROCESSING APPARATUS, POWER-SUPPLY CONTROL METHOD, AND COMPUTER READABLE MEDIUM - A power-supply control device includes a power-supply-state transition control section, body-capable-of-movement detection sections, and an instruction section. The power-supply-state transition control section shifts a state of an operation target section from one state to another state among power-supply states and a non-power-supply state. The body-capable-of-movement detection sections detect a body capable of movement in a region. The instruction section provides, on the basis of results of detection of the body capable of movement by the body-capable-of-movement detection sections, at least an instruction for shifting between one of the power-supply states and the non-power-supply state, among instructions for shifting the state of the operation target section from one state to another state with the power-supply-state transition control section.08-09-2012
20090287945IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREOF - An image processing apparatus includes: a main controller which controls a processing of an image; a power supply which supplies power to the main controller; a switching unit which selectively allows the power to be supplied from the power supply to the main controller; and a sub controller which determines whether a first power-off event occurs, and controls the switching unit to cut off the power supplied to the main controller if the sub controller determines that the first power-off event occurs, wherein the main controller determines whether a second power-off event different from the first power-off event occurs, and the switching unit cuts off the power supplied to the main controller if the second power-off event occurs.11-19-2009
20090240967EFFICIENT LOW POWER RETRIEVAL TECHNIQUES OF MEDIA DATA FROM NON-VOLATILE MEMORY - Power consumption may be reduced in a media device including a first processor coupled to the non-volatile memory, either directly or indirectly, allowing the first processor to generate a pointer structure. The first processor may also be coupled, either directly or indirectly to a memory space, allowing the first processor to write the pointer structure in the memory space. The media device includes a second processor, such as a DSP/SHW or peripheral processor, and may be also be coupled, either directly or indirectly to the memory space, allowing the second processor to retrieve a block of media data from the non-volatile memory. Retrieval of the block of media data may be read directly from the non-volatile memory, or in some cases, the media data being retrieved may be parsed. The media data may be an audio file data, video file data, or both.09-24-2009
20090240966IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM - An image processing device including a first control unit to control a normal operating mode during which image processing is performed, a second control unit to control an energy-saving mode during which power consumption is lower than during the normal operating mode, an interrupt request receiver connected to an external device to receive an interrupt request from the external device, interrupt factor distributors to distribute the interrupt request received by the interrupt request receiver based on whether or not the interrupt request includes a predetermined interrupt factor, interrupt request notification units to notify the second control unit as well as the first control unit of the interrupt request in accordance with distribution results from the interrupt factor distributors, and job adjustors to control transfer of a job between the first control unit and the second control unit based on notification from the interrupt request notification units.09-24-2009
20090240965ELECTRONIC APPARATUS AND AUTO WAKE-UP CIRCUIT THEREOF - The present invention relates to an electronic apparatus and an auto wake-up circuit thereof. The electronic apparatus comprises a main module for performing a main function of the electronic apparatus and generating a first control signal when the electronic apparatus enters a sleep mode; an auxiliary module, coupled to the main module, for performing an auxiliary function of the electronic apparatus and generating a second control signal; and a wake-up circuit module, coupled to the main module and the auxiliary module, for generating a third control signal based on the first control signal and the second control signal. The auxiliary module maintains the auxiliary function based on the third control signal while the electronic apparatus is in the sleep mode.09-24-2009
20110154079Instruction For Enabling A Procesor Wait State - In one embodiment, the present invention includes a processor having a core with decode logic to decode an instruction prescribing an identification of a location to be monitored and a timer value, and a timer coupled to the decode logic to perform a count with respect to the timer value. The processor may further include a power management unit coupled to the core to determine a type of a low power state based at least in part on the timer value and cause the processor to enter the low power state responsive to the determination. Other embodiments are described and claimed.06-23-2011
20110154081DYNAMIC POWER REDUCTION - Some embodiments of the invention include systems, apparatuses, and methods for dynamically reducing requested supply voltage based on idle functional blocks.06-23-2011
20110154078METHOD AND APPARATUS FOR MONITORING, ASSESSING, AND MANAGING POWER SOURCE PERFORMANCE - An approach is provided for monitoring, assessing, and managing power source performance. Depletion of a power source of a mobile device caused by executing a plurality of activities is determined. A duration value is determined for executing each of the activities. The duration values are attributed to the depletion. Statistical data corresponding to performance of the power source is generated.06-23-2011
20080320321Computer with low-power secondary processor and secondary display - A computer having an active mode and an inactive mode includes a primary processor and a primary memory. A primary display is associated with the primary processor and the primary memory. The primary processor, the primary memory, and the primary display are operated when the computer is in the active mode and are powered down when the computer is in the inactive mode. A secondary processor dissipates less power than the primary processor. A secondary display communicates with the secondary processor. The secondary processor and the secondary display are powered up when the computer is in the inactive mode, and the secondary processor processes at least one of wireless network data and disk drive data when the computer is in each of the active mode and the inactive mode.12-25-2008
20090125742ARRANGEMENT AND METHOD FOR CONTROLLING POWER MODES OF HARDWARE RESOURCES - A circuit arrangement and method of executing program code which utilize power control instructions capable of dynamically controlling power dissipation of multiple hardware resources during execution of a program by a processor. The processor configured to process such power control instructions and to maintain the power modes of the multiple hardware resources to that specified in an earlier-processed power control instruction, such that subsequently-processed instructions will be processed while the power modes of the multiple hardware resources are set to that specified by the earlier-processed power control instruction.05-14-2009
20090083561Dynamic power management of dimms - In some embodiments, an electronic apparatus comprises a processor, at least one non-volatile memory module, and logic to activate a first DIMM while placing at least a second DIMM in a sleep mode, assign operating system memory to grow from a first location in a first DIMM device, assign application memory to grow from a second location in the first DIMM device, mark at least one DIMM boundary in the first DIMM device, generate a page fault when at least one of the operating system memory or the application memory crosses the DIMM boundary; and in response to the page fault, activate at least a second DIMM in the plurality of DIMMs in the electronic device.03-26-2009
20080276108METHOD AND SYSTEM FOR IMPLEMENTING GENERALIZED SYSTEM STUTTER - A method and system for implementing a generalized system stutter are disclosed. Specifically, one embodiment of the present invention sets forth a method, which includes the steps of blocking a first request received from a first of a plurality of bus masters during a low power state of a computing device for as long as permissible by the timing requirements of the computing device, wherein the first request is capable of triggering the computing device to transition out of the low power state, and during an active state of the computing device, servicing the first request along with other pending requests from the rest of the plurality of bus masters before the computing device transitions back to the low power state.11-06-2008
20110179300ELECTRONIC DEVICE THAT IS ABLE TO BE CONNECTED TO AN EXTERNAL DEVICE AND OPTICAL DISK REPRODUCING APPARATUS - An electronic device (e.g. an optical disk reproducing apparatus) can be connected to an external apparatus (e.g. a display apparatus) and has a standby state as a power state. The electronic device includes a movable member (e.g. a disk tray) which is provided to be ejectable from and retractable into a body of the electronic device and be movable between an ejected position and a refracted position; a driver which drives the movable member, a detector which detects whether the movable member is at the retracted position, a communication unit which receives various control signals from the external apparatus, a power controller which controls the power state of the electronic device, a controller which controls the driver to locate the movable member to the retracted position when the power state of the electronic device is changed to the standby state by the power controller. The power controller controls whether to change the power state to the standby state according to a result of the detection by the detector, when the communication unit receives a predetermined control signal.07-21-2011
20080209246SYSTEM AND METHOD OF MANAGING POWER CONSUMPTION OF COMMUNICATION INTERFACES AND ATTACHED DEVICES - A system and method of managing power consumption of communication interfaces and attached devices is disclosed. In one form of the disclosure, a communication module can include a communication interface operable to receive link utilization information of a plurality of communication channels of the communication interface. The communication module can also include a processor operable to determine a percent utilization of the plurality of communication channels using the link utilization information. The processor can also be operable to initiate issuing a power management request of at least one of the plurality of communication channels in response to comparing the percentage of link utilization to a threshold level.08-28-2008
20120311364Information Handling System with Processing System, Low-power Processing System and Shared Resources - An information handling system includes a processing system, a low-power processing system, and a chipset. The processing system is configured to operate using a power system configured to power a shared resource of the processing system and a non-shared resource of the processing system, and to disable the non-shared resource during a reduced operating state of the processing system. The low-power processing system is configured to access the shared resource of the processing system during operation of the low-power processing system, wherein the operation of the low-power processing system is separate from the operation of the processing system. The chipset includes a processor of the processing system and operable to be enabled during operation of the processing system, wherein the processor is configured to be disabled during operation of the low-power processing system.12-06-2012
20120311363WIRELESS POWER TRANSMISSION AND CHARGING SYSTEM, AND COMMUNICATION METHOD OF WIRELESS POWER TRANSMISSION AND CHARGING SYSTEM - A wireless power transmission and charging system, and a communication method of the wireless power transmission and charging system are provided. According to a general aspect, a communication method of a wireless power transmission and charging system may include: switching from a standby mode to a detection mode in response to activation of a charging start element or a detection of a target device by a sensor; transmitting a wake-up power and a wake-up request message to at least one target device in the detection mode; receiving an acknowledge (ACK) message from the target device in response to the wake-up request message, and determining a number of target devices based on the ACK message; and transmitting a charging power to the target device to which the control ID is assigned.12-06-2012
20120311361PREDICTIVE POWER STATE TRANSITIONS FOR INFORMATION HANDLING DEVICES - Systems, methods and products are described that provide predictive power state transitions for information handling devices. One aspect includes ascertaining a power state transitioning pattern of an information handling device; responsive to a power state transition to a first lower power state at said information handling device, performing an additional power state transition to automatically transition the information handling device to a second lower power state, said second lower power state being a lower power state relative to said first lower power state; and proactively resuming the information handling device to the first lower power state responsive to a timing threshold being met; wherein the timing threshold is determined based on the power state transitioning pattern ascertained. Other embodiments are described.12-06-2012
20120311360Reducing Power Consumption Of Uncore Circuitry Of A Processor - In one embodiment, a multi-core processor includes multiple cores and an uncore, where the uncore includes various logic units including a cache memory, a router, and a power control unit (PCU). The PCU can clock gate at least one of the logic units and the cache memory when the multi-core processor is in a low power state to thus reduce dynamic power consumption.12-06-2012
20120204050MANAGEMENT APPARATUS AND PROGRAM - Power consumption of a communication apparatus having a plurality of operating modes can be accurately determined. A management apparatus 08-09-2012
20120204049SERVER INITIATED POWER MODE SWITCHING IN PORTABLE COMMUNICATION DEVICES - In a process, a power mode indicator is transmitted from a content server and is received by a Portable Communication Device (PCD). The indicator is indicative of a power mode potentially available to a circuit block in the PCD. The circuit block exhibits different levels of power consumption when operated in different power modes and is operated in the indicated power mode in response to the received power mode indicator. The content server may be a stream server. The circuit block may be operated in the power mode to receive/process a data stream.08-09-2012
20100325460HYBRID OPTIMIZED PERSONAL COMPUTER - An Optimized Personal Computer (OPC) system may be a multi-functional processing unit with ultra-low power consumption and may consist of a single chip having a plurality of processors thereon. Each processor may be specialized for tasks including computing, graphic processing and audio processing. The OPC may be connected to a mother board, a memory unit and an I/O interface. The OPC may be connected to a primary PC (either in an expansion slot or in a drive bay) via a USB connection, for example, and be configured to run continuously and take over certain tasks from the primary PC as needed while the primary PC hibernates. The OPC may also be embedded in a monitor or other peripheral devices.12-23-2010
20110055607METHODS FOR MANAGING PROCESS ACTIVITY DATA USING A SYSTEM-WIDE DAEMON - Techniques for managing process activity statistics using a system-wide daemon are described herein. A power management daemon retrieves process activity status data from a system monitoring file stored within a data processing system, in response to a request received from a session client via an application programming interface (API). The power management daemon is a single system-wide component within the data processing system to provide the process activity status data to a plurality of session clients. The retrieved process activity status data is returned to the client via the API, where the system monitoring file requires a predetermined accessing privilege for accessing. Thus, through the power management daemon, the session client does not have to satisfy the predetermined accessing privilege in order to access the process activity status data stored in the system monitoring file.03-03-2011
20110055609Controlling the Power State of a Computer - A computer implemented method of controlling a computer comprises periodically determining the total value of at least one activity metric of the controlled computer. The contribution(s) to the said total value(s) of one or more predetermined activities are determined. In one embodiment, the said contribution(s) are subtracted from the said total value(s) to provide respective net value(s). The net values are compared with respective preset values and the power state of the computer is controlled in dependence on the comparison. The one or more predetermined activities may be identified using a predetermined data set. In another embodiment the net value of at least one activity metric of the monitored computer is a net value excluding contributions to the said value(s) from the said one or more predetermined activities identified from the said data set.03-03-2011
20110055608NOTEBOOK COMPUTER WITH SLEEP MODE FUNCTION - An exemplary embodiment of notebook computer includes a main body, a display, and a proximity sensor. The display is pivotably connected to the main body. The proximity sensor is installed in the main body and includes an emitter and a receiver. The emitter is configured for emitting an emission. The receiver is configure for receiving the emission, determining if an included angle between the main body and the display is in a predetermined range based upon the received emission, and, if yes, generating a signal indicative of placing the notebook computer in the sleep mode.03-03-2011
20080301482Method and apparatus for connecting multiple multimode processors - A computer array 12-04-2008
20100332879IMAGE FORMING APPARATUS - An image forming apparatus connected to a plurality of computer apparatuses via a network including; a detecting section detecting the state of at least one prescribed computer apparatus out of the plurality of the computer apparatuses; and a power supply control section controlling a power mode based on the state of the prescribed computer apparatus detected by the detecting section.12-30-2010
20080244292Method and Apparatus to Re-create trust model after sleep state - A processing system features random access memory (RAM), a processor, and a trusted platform module (TPM). When the processing system enters a sleep mode during which the RAM is to stay powered, the processing system may measuring a VMM and one or more secure VMs in the processing system. However, the processing system may not measure or encrypt all of system memory. Upon resuming from sleep, the processing system may verify the measurements, to ensure that the VMM and secure VMs have not been tampered with. Other steps may include sealing encryption keys to the TPM, while preserving the blobs in memory. Other embodiments are described and claimed.10-02-2008
20110010571PRINTER TIME-OUT - A system and a method of providing a time-out for a device, such as a printer are provided. The time-out determines when the device is shifted from a higher energy to a lower energy mode, absent the arrival of another job to be processed by the device. The method includes acquiring data comprising a set of inter-arrival times for at least one device over a period of time, such as a week and, for each of a set of candidate time-outs, deriving a probability from the data that an inter-arrival time from the set of inter-arrival times is greater than the candidate time-out. A cost function is computed, based on the derived probability and a robustness term which allows adversarial action not predicted by the histogram to be taken into account. A time-out for the at least one device can then be identified for which the cost function is a minimum.01-13-2011
20110016338Storage of system configuration data on a processor - A processor is disclosed having a plurality of general purpose registers for storing data for processing by the processor; a set of system configuration registers for storing data indicative of a current configuration of the processor; the system configuration registers being located together in a register file; and at least some of the set of system configuration registers having a shadow register for storing a duplicate value remote from the register file, the shadow register being located close to a component that the shadow register stores a configuration value for.01-20-2011
20110179298METHOD FOR CONTROLLING VOLTAGES SUPPLIED TO A PROCESSOR - A power supply unit for supplying power to a processor is disclosed. The power supply unit includes a smoothing capacitor, a controller, and an arithmetic circuit. The controller controls an output voltage according to each power state of a processor operating in a transition state where a power state of the processor transitions between an active state and a predetermined sleeping state at a predetermined transition frequency. The arithmetic circuit determines a transition stop condition based on power consumption of the processor and charging loss generated at the smoothing capacitor during the transition of the active state, and outputs a transition stop signal to stop transition to the predetermined sleeping state.07-21-2011
20110179297EXTERNAL DEVICE POWER CONTROL DURING LOW POWER SLEEP MODE WITHOUT CENTRAL PROCESSING UNIT INTERVENTION - An integrated circuit device controls power up of an external device used for sensing a process variable independently of whether the integrated circuit device is in a low power sleep mode. Once the external device becomes operational the integrated device, even when still in the low power sleep mode, samples the process variable status of the external device. Low power timing circuits operational during the low power sleep mode control the power up of the external device and sampling of the process variable status thereof. After the sample of the process variable status is taken, the integrated circuit device may be brought out of the low power sleep mode to an operational mode when appropriate as determined from the sampled process variable status.07-21-2011
20110264939STOCHASTIC MANAGEMENT OF POWER CONSUMPTION BY COMPUTER SYSTEMS - Embodiments of the present disclosure describe methods, computer-readable media and system configurations for stochastic power management of one or more computer systems. A method may include ascertaining a workload of a plurality of computer systems (e.g., a data center). Additionally or alternatively, a method may include initiating, by a control module operated by a processor of a first of the plurality of computer systems, a stochastic power management process to manage power consumption of the first of the plurality of computer systems. The stochastic power management process may be conditionally initiated based at least in part on the ascertained workload of the plurality of computer systems. The stochastic power management process may include a plurality of virtual machine management actions having corresponding probabilities being taken, one or more of which may result in power savings. Other embodiments may be described and/or claimed.10-27-2011
20100287396DATA PROCESSOR PERFORMANCE PREDICTION - A method of processing data using a data processor having an operating system for performing tasks of an application programme, and a power and performance controller controlling parameters and modes of execution of the tasks by the data processor. The power and performance controller includes a performance predictor producing an estimation of required performance of the data processor for the tasks taking account of inactive periods of the tasks and adjusting the performance and power consumption of the data processor in response to the estimation. The performance predictor distinguishes for each of the tasks between: —available inactive periods of the task during which the operating system is available to continue to process the same task, and —unavailable inactive periods of the task during which the operating system is not available to continue to process the same task. A substantial improvement is obtained in quality of service, with fewer missed deadlines in performance of the tasks.11-11-2010
20100287394NORTH-BRIDGE TO SOUTH-BRIDGE PROTOCOL FOR PLACING PROCESSOR IN LOW POWER STATE - A processor integrated circuit has one or more processor cores and a power management controller in a North-Bridge that generates a first power state recommendation for the one or more processor cores. The North-Bridge also receives a second power state recommendation from a South-Bridge integrated circuit. The North-Bridge determines a final power state for the one or more processor cores based on the first and second power state recommendations.11-11-2010
20110191617APPARATUS FOR CHARGER CIRCUIT IN PORTABLE TERMINAL AND OPERATION METHOD THEREOF - An apparatus for a charger circuit in a portable terminal and an operation method thereof are provided. The apparatus includes a charger Integrated Circuit (IC) for, upon detecting an insertion of a charging cable, determining whether a charging error occurs by collecting charging-related information, and for outputting a signal for indicating the occurrence of the charging error, and a Central Processing Unit (CPU) for performing an error control operation upon receiving the signal for indicating the occurrence of the charging error from the charger IC.08-04-2011
20110191616USB POWER MANAGING SYSTEM AND METHOD THEREOF - The present invention relates to a USB power managing system and a method thereof, the USB power managing system comprises an USB peripheral device and an USB interface, wherein the USB interface includes: a micro controlling unit; a data switch coupled to the micro controlling unit; an USB connecting unit coupled to the data switch; and a power switch coupled to the micro controlling unit and the USB connecting unit; wherein when the USB peripheral device is coupled to the USB connecting unit, the micro controlling unit switches the power switch for providing a power the USB peripheral device through the USB connecting unit; moreover when the USB peripheral device enters a standby mode, the micro controlling unit turns off the power switch for stopping providing the power to the USB peripheral device.08-04-2011
20110083028APPARATUS FOR MINIMIZING STANDBY POWER OF SWITCHING-MODE POWER SUPPLY - The present invention relates to an apparatus for minimizing the standby power of a Switching Mode Power Supply (SMPS). The apparatus for minimizing standby power according to the present invention is connected between an Alternating04-07-2011
20110126037POWER SAVING METHOD IN MOBILE COMMUNICATION NETWORK - Provided is The present invention provides a method to dynamically control the sleep window or the listening window of a sleep mode in order to minimize power consumption of a mobile terminal. The power saving method relates to a method for a transmitter of a communication system that controls data transmission to a listening window and a sleep window to control the sleep window, wherein if the data transmission is generated during the listening window, the transmitter gradually decreases a sleep window subsequent thereto by a predetermined ratio, and to the contrary, if the data transmission is not generated during the listening window, the transmitter gradually increases a sleep window subsequent thereto by a predetermined ratio.05-26-2011
20110126036IMAGE FORMING APPARATUS - An image forming apparatus includes a first control unit configured to control an operation of an image forming unit, and a second control unit configured to be capable of communicating with the first control unit and transmitting information associated with forming an image to the first control unit. The image forming apparatus has a normal operation mode in which an image forming operation is performed, a first power-saving operation mode in which an operation of the first control unit is stopped, and a second power-saving operation mode in which supplying of electric power to the second control unit is stopped. In the first power-saving operation mode, the second control unit determines whether to switch into the normal operation mode from the first power-saving operation mode. In the second power-saving operation mode, the first control unit determines whether to switch into the normal operation mode from the second power-saving operation mode.05-26-2011
20110138210NETWORK EVENT NOTIFICATION AND DELIVERY - Described are a main host system of the client computer, and a network event notification system, including a networking subsystem that communicates with a network server to act as a proxy for the client computer when the main host system of the client computer is in a sleep state. The networking subsystem may await a synchronization packet initiated by the network server, or may occasionally poll the network server to determine whether data is available. To this end, the computing device operates an associated network subsystem while the main host system of the computing device is in a sleep state, and receives data via the network subsystem indicating that content is available to the computing device. Policy is then invoked policy to determine whether to wake at least part of the main host system to handle the content. A target duty cycle mechanism is also provided to control the average power consumption during wake and sleep cycling.06-09-2011
20110138209METHOD TO CONTROL SLEEP MODE, AND TERMINAL AND APPARATUS THEREOF - During a listening window after a sleep window, a terminal receives a control signal that indicates existence of data corresponding to the terminal, and enters a sleep window if no data corresponding to the terminal exists.06-09-2011
20110138208METHOD AND APPARATUS FOR REDUCING POWER CONSUMPTION IN DIGITAL LIVING NETWORK ALLIANCE NETWORK - A method and apparatus for reducing power consumption in a DLNA (Digital Living Network Alliance) network is provided. A method for operating a digital media renderer to reduce power consumption in a DLNA network includes receiving media content from a digital media server, and controlling the power of a communication connection device and a display according to the control state of the received media content.06-09-2011
20110138207POWER CONTROL AND OPERATION METHOD FOR NOTEBOOK COMPUTER - A power control and operation method of a notebook computer is disclosed. The notebook computer has a display and a switch is activated when the display is closed. The operation procedure comprises steps of activating the program in advance and detecting via an audio receiver/player whether the proceeding setup of the system is in idle state when the display closed; if it isn't, an voice inquiry is sent out for whether to change proceeding setup of the system in idle state to enable user to continue operating the notebook computer; after detecting the signal for display closed, the detection is repeated to the proceeding setup of the system or to inquire whether to change the proceeding setup as idle state, then shut down the display power and activate the voice identifier for further operating the notebook computer. Thus the user can operate the notebook computer by the voice control even without using the keyboard or the touch panel to substantially enjoy the convenience.06-09-2011
20110010573ELECTRONIC DEVICE WITH SERIAL ATA INTERFACE AND POWER SAVING METHOD FOR SERIAL ATA BUSES - In an electronic device with a serial ATA interface, upon detection of the issue or reception of a preset command, a confirmation device, such as a CPU, confirms the completion of execution of the command. Upon confirming the completion of execution of the command, a controller, which may also be the CPU, controls shifting of the serial ATA interface to a power saving mode.01-13-2011
20110093729MOTION SENSOR DATA PROCESSING USING VARIOUS POWER MANAGEMENT MODES - Systems and methods for processing motion sensor data using various power management modes of an electronic device are provided. Power may be provided to a motion sensor during a first power mode of the device. In response to the motion sensor detecting a motion event with a magnitude exceeding a threshold, the sensor may transmit a wake up signal to a power management unit of the device. In response to receiving the wake up signal, the power management unit may switch the device to a second power mode. The device may provide power to a processor and load the processor with a motion sensing application when switching to the second power mode. During the second power mode, motion sensor data may be processed to determine that the motion event is not associated with an intentional user input and the device may return to the first power mode.04-21-2011
20090300391Self-Powered Devices and Methods - A system includes a computing device that selectively communicates with a self-powered device. The self-powered device has several modes of operation, including a first low-power mode of operation and a second high-power mode of operation. The self-powered device is to communicate with the computing device when the self-powered device is in the second mode of operation. The self-powered device may conserve power by alternating between the first mode of operation and the second mode of operation such that the self-powered device is in the second mode of operation during pre-determined or adaptively-determined time intervals. A duty-cycle of the second mode of operation relative to the first mode of operation may be in accordance with a power budget for the self-powered device.12-03-2009
20090300393DYNAMIC POWER CONTROL FOR REDUCED VOLTAGE LEVEL OF GRAPHICS CONTROLLER COMPONENT OF MEMORY CONTROLLER BASED ON ITS DEGREE OF IDLENESS - A method includes detecting a trigger condition, and in response to detecting the trigger condition, reducing a voltage applied to a graphics controller component of a memory controller. The reduction in voltage may cause the voltage to be reduced below a voltage level required to maintain context information in the graphics controller component.12-03-2009
20090300392HIGH SPEED NETWORK INTERFACE WITH AUTOMATIC POWER MANAGEMENT WITH AUTO-NEGOTIATION - A computer system comprises host processor and a network interface, wherein the host processor includes resources supporting a full power mode, a lower power mode and a power down mode, as seen in standard system bus specifications such as PCI and InfiniBand. The network interface includes a medium interface unit coupled to network media supporting a least high speed protocol, such as a Gigabit Ethernet or high-speed InfiniBand, and a lower speed protocol, such as one of 10 Mb and 100 Mb Ethernet or a lower speed InfiniBand. Power management circuitry forces the medium interface unit to the lower speed protocol in response to an event signaling entry of the lower power mode. In the lower power mode, the network interface consumes less than the specified power when executing the lower speed protocol, and consumes greater than the specified power when executing the high speed protocol. Logic in the network interface operates in the lower power mode, and uses the lower speed protocol to detect a pattern in incoming packets. In response to the detection of said pattern, the logic issues a reset signal to the host processor. Thus, the network interface operates as a wake-up device in the lower power mode, using the lower speed protocol.12-03-2009
20090300390Imaging device with adaptive power saving behavior and method for use thereon - An imaging device with an adaptive power saving behavior conserves power by establishing reduced power mode entry and/or exit timeout values based on device usage statistics. Such an imaging device in some embodiments comprises at least one interface and a processor communicatively coupled with the interface, wherein under control of the processor the imaging device determines usage statistics for the imaging device based on jobs received on the interface and selects a power save entry timeout value for the imaging device based on the usage statistics.12-03-2009
20090300389POWER SUPPLY HAVING MULTIPLE SETS OF OUTPUT POWER - A power supply having multiple sets of output power includes a primary power system to transform AC power to DC power when a computer host is power on and a standby power system linking and transforming the AC power to the DC power when the computer host is shut down. The power supply has a power output port located outside. The power output port has a primary power terminal dock linking to the primary power system and a standby power terminal dock linking to the standby power system. A transmission line is provided that has one end electrically connected to the power output port and other end forming at least a first coupling end and a second coupling end to output respectively primary power and standby power to a linking and corresponding computer equipment and an external electronic device. Thus the power supply can provide electric power to the computer equipment and external electronic device through the transmission line when the computer host is power on, and continuously provide the electric power to the external electronic device when the machine is shut down. It solves the problem of the conventional power supply that can provide power only when the machine is power on.12-03-2009
20090292934INTEGRATED CIRCUIT WITH SECONDARY-MEMORY CONTROLLER FOR PROVIDING A SLEEP STATE FOR REDUCED POWER CONSUMPTION AND METHOD THEREFOR - A method comprising determining that a minimum operation level of an integrated circuit (11-26-2009
20090204836SYSTEM AND METHOD FOR USING A LINK ENERGY SIGNAL IN A PHYSICAL LAYER DEVICE HAVING A SILENT CHANNEL/INTERFACE IN ENERGY EFFICIENT ETHERNET - A system and method for using a link energy signal in physical layer devices (PHYs) having a silent channel/interface in energy efficient Ethernet (EEE). LPI modes in EEE suffer deficiencies in cable unplug detection due to the latency in refresh cycles. LPI modes in EEE also suffer from potential frequency drift, which leads to high bit error rate (BER) when coming out of LPI mode. A link energy signal transmitted during LPI modes enables real-time detection of cable unplug and the frequency lock to be maintained.08-13-2009
20090204835USE METHODS FOR POWER OPTIMIZATION USING AN INTEGRATED CIRCUIT HAVING POWER DOMAINS AND PARTITIONS - In a programmable SoC (system-on-a-chip) integrated circuit device, a method for optimizing power efficiency for a requested device functionality. The method includes determining a requested device functionality, and in response to the requested device functionality, turning on power for a selected one or more power domains out of a plurality of power domains included within the integrated circuit device. Each of the power domains has its own respective voltage rail to obtain power. The method further includes turning on one or more power islands out of a plurality of power islands included within the integrated circuit device. The requested device functionality is then implemented using one or more functional blocks wherein each functional block is configured to provide a specific device functionality.08-13-2009
20110197085POWER LINE COMMUNICATION DEVICE - A power line communication (PLC) device is connected to a television power line to detect a working state of a television. When the television is turned off, the PLC device notifies a set-top box to enter a standby mode via a main power line. When the television is turned on, the PLC device notifies the set-to box to enter a normal working mode via the main power line.08-11-2011
20100031072SYSTEM FOR POWER MANAGEMENT AND SAFETY PROTECTION AND METHOD THEREOF - A system for power management and safety protection and a method thereof are presented. The system and method are applicable to a computer device having a sensor. The sensor detects position information of a user relative to the computer device so as to determine whether to enter a sleep mode or a recognition mode. The sensor also detects motion information of a particular motion of the user so as to return to an operating mode.02-04-2010
20100031071Platform-Based Idle-Time Processing - A system and method for transitions a computing system between operating modes that have different power consumption characteristics. When a system management unit (SMU) determines that the computing system is in a low activity state, the SMU transitions the central processing unit (CPU) into a low power operating mode after the CPU stores critical operating state of the CPU in a memory. The SMU then intercepts and processes interrupts intended for the CPU, modifying a copy of the critical operating state. This effectively extends the time during which the CPU stays in lower power mode. When the SMU determines that the computing system exits a low activity state, the copy of the critical operating state is stored in the memory and the SMU transitions the CPU into a high power operating mode using the modified critical operating state.02-04-2010
20100017637PORTABLE ELECTRONIC TERMINAL AND METHOD THEREFOR - A portable electronic terminal capable of changing to an idle or sleep mode during which selective powering of portions of the electronics of the terminal takes place to save energy, the terminal comprising:—at least one memory storing, when in the idle or sleep mode, a program code of a background task and data necessary for the execution of the background task,—a calculator (01-21-2010
20120042184COMPUTER MOTHERBOARD CAPABLE OF REDUCING POWER CONSUMPTION IN SUSPEND - A computer motherboard has a newly added DS3W mode, which is capable of reducing power consumption of the computer motherboard in Suspend. With a power-saving control device and a power switch device that are newly added to the computer motherboard, power supply to a main memory, the power-saving control device, and the power switch device is maintained continuously, while all the other elements of the computer motherboard may be powered off, but the computer motherboard still has the capability of waking up and resuming from a conventional sleep S3 state, so as to save more power. When a user presses a power button, the power-saving control device and the power switch device resume power supply to the elements that are previously powered off.02-16-2012
20080270813Mother/daughter switch design with self power-up control - System and method for providing power to integrated circuitry with good power-on responsive time and reduced power-on transient glitches. A preferred embodiment comprises a daughter switch coupled to a circuit block, a first control circuit coupled to the daughter circuit, a second control circuit coupled to the first control circuit, and a mother circuit coupled to the circuit block and to the second control circuit. After the daughter switch is turned on by a control signal, the mother switch is not turned on until the daughter switch has discharged (charged) the voltage potential across power rails of the mother circuit to a point where glitches are minimized. The second control circuit turns on the mother circuit when the reduced voltage potential is reached, with a signal produced by the first control circuit reflects the voltage potential. Furthermore, a bypass circuit can be used to reduce leakage current.10-30-2008
20110307724SECURE STORAGE DEVICE - A communication and security device for a portable computer is disclosed including a housing, a connector provided on the housing for physical connection to the portable computer, a computer interface coupled to the connector for communicating data with the portable computer, a wireless modem coupled to the computer interface for communicating data between the portable computer and a remote device via a wireless network, a regulator operable to regulate power in the communication and storage device, and a processor coupled to control the regulator, the processor coupled to the wireless modem and arranged to process at least one security command received by the wireless modem to control the regulator in response to the received command.12-15-2011
20110307728METHOD FOR CONTROLLING ELECTRIC POWER OF COMPUTER SYSTEM - To reduce the electric power consumption of the computer system, the computer system includes at least one server and at least one data processing apparatus, the data processing apparatus includes an electric power consumption state control module by which electric power consumption of the data processing apparatus can be changed, obtains a use relationship between each server and each processing apparatus included in the computer system, monitors a change in a state of the server, searches for a related data processing apparatus in the use relationship with the server, obtains a state of at least one related server in the use relationship with the related data processing apparatus, and determines whether an electric power consumption state of the related data processing apparatus is to be changed or not based on the state of the related server, and changes the electric power consumption state of the related data processing apparatus.12-15-2011
20110307729STORAGE 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.12-15-2011
20110307727Computer with Built-in Wireless Module and Standby and Activate Method Thereof - A method for activating a computer with a built-in wireless module includes the following steps: launching the activation of the computer; sending signal of requiring activation of the computer by the wireless module; and detecting, analyzing and determining the signal of requiring activation of the computer by a control circuit, sending control signal of activating the computer to the computer by the control circuit and as a response to said control signal, the computer is activated. The computer can supply electrical power to the wireless module without interruption in case that the computer gets into standby, sleep or shutdown mode. When there is incoming voice signal or data signal (for instance, short message or MMS), the voice signal or data signal may be detected, analyzed, and determined and once activation signal is found, the computer will wake up in a short time and normal hardware and software environment will resume.12-15-2011
20110307726REMOTE CONTROL METHOD AND REMOTE CONTROLLER - A remote controller 12-15-2011
20110307725METHOD TO MANAGE THE POWER SETTING OF A RECEIVER/DECODER FOR PAY-TV - A method to manage the power setting of a receiver/decoder for pay-TV comprising a timer and means to receive management messages, the power setting comprising at least three states, the active state during which the reception and the decoder is active, the active/standby state during which the receiver is active for the reception of management messages and the standby state during which the receiver/decoder is in idle mode.12-15-2011
20090172446ELECTRONIC DEVICE WITH SERIAL ATA INTERFACE AND POWER SAVING METHOD FOR SERIAL ATA BUSES - In an electronic device with a serial ATA interface, upon detection of the issue or reception of a preset command, a confirmation device, such as a CPU, confirms the completion of execution of the command. Upon confirming the completion of execution of the command, a controller, which may also be the CPU, controls shifting of the serial ATA interface to a power saving mode.07-02-2009
20090172445ELECTRONIC DEVICE WITH SERIAL ATA INTERFACE AND POWER SAVING METHOD FOR SERIAL ATA BUSES - In an electronic device with a serial ATA interface, upon detection of the issue or reception of a preset command, a confirmation device, such as a CPU, confirms the completion of execution of the command. Upon confirming the completion of execution of the command, a controller, which may also be the CPU, controls shifting of the serial ATA interface to a power saving mode.07-02-2009
20090172444Computer System and Power-Saving Method Thereof - The present invention relates to a computer system and a power-saving method thereof. The computer system comprises a slot, a switch set, and a controlling module. An expansion card is capable of inserting into the slot. The switch set controls transmission of a power, a clock, and a bus signal to the slot. When activating a power-saving operation, the controlling module is capable of sending a controlling signal to command the switch set to cut off transmission of power, the clock, and the bus signal to the slot.07-02-2009
20090172443Methods and apparatuses for processing wake events of communication networks - Methods, apparatuses, and computer program products that respond to wake events of communication networks are disclosed. One or more embodiments comprise setting a wake password of a computing device, such as a notebook computer or a server. Some of the embodiments comprise receiving a wake request from a communications network, establishing a secure communication session, and setting the wake password with the secure communication session. Some embodiments comprise an apparatus having a network controller to allow a platform to communicate via a communications network, non-volatile memory that stores a wake password, and a management controller which may communicate with a management console via a secure communication session to update the wake password. One or more embodiments the network controller may wake management hardware and/or wake the management controller while keeping one or more of the devices in the power conservation mode.07-02-2009
20090172439SYSTEM AND METHOD FOR FAST PLATFORM HIBERNATE AND RESUME - In some embodiments, an apparatus includes processor cores, a smaller non-volatile memory, a larger non-volatile memory to hold an operating system, programs, and data for use by the processor cores. The apparatus also includes volatile memory to act as system memory for the processor cores, and power management logic to control at least some aspects of power management. In response to a power state change command, a system context is stored in the smaller non-volatile memory followed by the volatile memory losing power, and in response to a resume command, the volatile memory receives power and receives at least a portion of the system context from the smaller non-volatile memory. Other embodiments are described.07-02-2009
20120042185COMPUTER SYSTEM AND CONTROL METHOD THEREOF - A computer system includes a system part, a connector to which an external device is connected, a communication unit which performs communication with the external device, and a control unit which is connected between the connector and the communication unit to monitor a state of a predetermined recognition signal applied from the external device when the system part is in a standby mode. The control unit performs a predetermined function corresponding to the monitored state of the recognition signal. When the system part is in the standby mode, the system part may be switched to an operation mode based on the recognition signal from the external device. Additionally, a predetermined charging power is output to an external device in response to the predetermined recognition signal applied from the external device connected to the connector while the system part exists in the standby mode.02-16-2012
20120042183APPARATUS FOR ADJUSTING COMPUTER POWER MODE - An apparatus includes a setting module setting a preset time, a sensing module, a control module, a power interface connected to a power source to provides powers to the apparatus, and an output interface connected to a computer to output a control signal. The sensing module detects whether a user of the computer has left, outputs a first sensing signal when the user has left, and outputs a second sensing signal when the user comes back. The control module stores the preset time, when the preset time is reduced to zero, and the control module receives the first sensing signal, the control module outputs a sleep signal to the computer, to control the computer to enter a sleep mode. In the sleep mode, the control module outputs a wake signal to the computer according to the received second sensing signal, to control the computer to return to a working mode.02-16-2012
20120072752METHOD AND APPARATUS FOR PROVIDING POWER MANAGEMENT ENHANCEMENTS - A method and apparatus for providing power management enhancements. In an embodiment, the method comprises receiving an indication that the computing device is in a non-user-interactable state and powering down non-essential device components such that the computing device is configured to enter a low power state. In another embodiment, the method comprises selecting a duration for a battery life of the computing device and selecting a power profile for the computing device to ensure that the computing device operates for at least as long as the selected duration. In an embodiment, the apparatus comprises a computing device comprising means for providing battery power and means for altering a power profile of the computing device.03-22-2012
20120072751POWER CONSERVATION IN WIRELESS CLIENT TERMINALS AND SYSTEM LATENCY REDUCTION USING A PROXY DEVICE - A scheme is provided for conserving power in client terminals and/or reducing latency in wireless systems by using a proxy device. The client terminal may have a primary communication interface for communications with an access node and a secondary communication interface to communicate with the proxy device. The client terminal may indicate to the access node a short cycle rate for monitoring its signaling/control channel(s). The client terminal may the power off its primary communication interface without informing the access node. Prior to powering off its primary communication interface, the client terminal may assign the proxy device to act as its proxy and monitor the signaling/control channel with the access node. The proxy device monitors the signaling/control channel(s) according to the indicated short cycle rate. Upon detection of a message for the client terminal, the proxy device forwards the message to the client terminal via a secondary communication interface.03-22-2012
20120042187INFORMATION PROCESSING APPARATUS AND POWER SUPPLY CONTROL CIRCUIT - Provided is an information processing apparatus including: a power supply control portion that performs control of a power supply; a detection signal emitting portion that, when a connection of an external power source is detected in an operation stand-by state in which power consumption is suppressed and an operation is on stand-by, emits a detection signal only for a certain time period, in accordance with the detection; and a power supply portion that supplies power to the power supply control portion based on the detection signal emitted by the detection signal emitting portion and also stops the power supply to the power supply control portion after a certain time period elapses from the connection in the operation stand-by state.02-16-2012
20120042186CONTROL DEVICE FOR A VEHICLE NETWORK AND METHOD FOR OPERATING A VEHICLE NETWORK - A control device (02-16-2012
20130013947IMAGE FORMING APPARATUS, CONTROL METHOD OF IMAGE FORMING APPARATUS, AND PROGRAM - An information processing apparatus includes, a reception unit configured to receive an instruction to transfer the information processing apparatus to the second power state, an analysis unit configured, when the reception unit receives the instruction, to analyze a factor limiting the transfer of the information processing apparatus to the second power state, and a control unit configured, when the analysis unit analyzes the factor and as a result the factor is a first factor, to control the information processing apparatus to transfer to the third power state without waiting until the factor is resolved, and configured, when the factor is a second factor, to control the information processing apparatus to wait until the factor is resolved, and to transfer to the second power state.01-10-2013
20120254646PORTABLE ELECTRONIC DEVICE AND METHOD FOR CONTROLLING SCREEN PROTECTION FUNCTION OF THE PORTABLE ELECTRONIC DEVICE - In a method for controlling a screen protection function of a portable electronic device, the portable electronic device includes a gravity sensor, a display screen, and a storage system. The gravity sensor detects a horizontal vector and a vertical vector of a gravitational acceleration of the portable electronic device, and a tilt angle of the portable electronic device is calculated according to the horizontal vector and the vertical vector. The method activates a screen protection program of the portable electronic device to control the display screen to enter into a power saving mode if the tilt angle exceeds a preset tilt angle range stored in the storage system, and terminates the screen protection program to control the display screen to enter into a normal display mode if the tilt angle does not exceed the preset tilt angle range.10-04-2012
20120254645CONTROL OF PLATFORM POWER CONSUMPTION USING COORDINATION OF PLATFORM POWER MANAGEMENT AND DISPLAY POWER MANAGEMENT - Control of platform control of platform power consumption using selective updating of a display image. An embodiment of an apparatus includes a display controller to transfer pixel data from a frame buffer to a video display and a detection element to track updates to the frame buffer, the detection element to identify a portion of the pixel data that has been changed from a previous image, where the display controller is to provide the video display with the identified portion of the pixel data.10-04-2012
20120047381Control Device, Main Board and Computer - The invention provides a control apparatus, a main board, and a computer wherein, the control apparatus is applied in the computing device. The computing device includes a main board, a standby power supply, and a switching means configured between the standby power supply and the at least one electronic element. The control apparatus includes a signal receiving module, a judging module for judging whether the computing device is in a turn-off mode according to the signal, and a controlling module. The standby power supply is connected with the main board through the control apparatus and the switching switch respectively, so that after the turn-off of the computer, the control apparatus switches off the connection between the standby power supply and the main board, to reduce the power consumption of the main board after the turn-off.02-23-2012
20120210154METHOD AND DEVICE FOR WAKING USERS OF A BUS SYSTEM AND CORRESPONDING USERS - An apparatus for waking up users of a CAN bus system, wherein a sensing element, in particular a counter, is provided which senses at least one predefined signal property of the signals transmitted on the bus system and initiates the further wakeup operation when a predefined number is reached with reference to the signal property, the data stream of the CAN bus itself being used as a clock for detecting the signal property.08-16-2012
20120210153ELECTRIC POWER CONTROL DEVICE AND ELECTRIC POWER CONTROL METHOD - An electric power control device includes: a power consumption monitoring section for monitoring electric power consumed by an electronic device; a moving average calculation section for calculating a moving average of the power consumption of the electronic device, based on the power consumption monitored by the power consumption monitoring section; a state-of-load determination section for determining state of the operational load on the electronic device, based on the moving average calculated by the moving average calculation section; and a control section configured to control the electronic device to operate either in a restriction mode in which an upper limit corresponding to state of load determined by the state-of-load determination section is imposed, or in a restriction release mode in which the upper limit is not imposed.08-16-2012
20120005507Display Devices and Control Methods - A display device includes a host, a control unit, and a display unit. The control unit receives host data from the host and then generates input data. The control unit includes first, second, and third memories and an arbiter. The first memory stores the input data to serve as first stored data. The second memory stores second stored data and outputs it for generating output data. The third memory stores third stored data. When the amount of the first stored data is greater than a first threshold value, the arbiter performs a writing operation to write the first stored data into the third memory. When the amount of the second stored data is lower than a second threshold value, the arbiter performs a reading operation to read the third stored data to being written into the second memory. The display unit displays images according to the output data.01-05-2012
20120005508ASYNCHRONOUS SLEEP MODE FOR HOST CONTROLLER - Embodiments of the invention utilize a universal serial bus (USB) host controller to traverse an asynchronous data transfer list to identify data transfers to execute. The asynchronous data transfer list may include a plurality of header nodes, each header node to identify data transfers to one of a plurality of devices operatively coupled to an electronic device. The USB host controller may execute an extended sleep mode in response to identifying no data transfers to execute and receiving an indication that the system processor is in a sleep state. The USB host controller may exit the extended sleep mode in response to receiving an indication that the processor is in non-sleep state.01-05-2012
20120005506SYSTEMS AND METHODS FOR IMPLEMENTING REDUCED POWER STATES - In some embodiments, provided is a way for devices to request S01-05-2012
20120005510ELECTRONIC 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 receiving at least a signal; 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 received signal from the receiver logic and processing the received signal; 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.01-05-2012
20120005511Method And Apparatus For A Power-Efficient Framework to Maintain Data Synchronization of a Mobile Personal Computer to Simulate A Connected Scenario - An apparatus and method for a power-efficient framework to maintain data synchronization of a mobile personal computer (MPC) are described. In one embodiment, the method includes the detection of a data synchronization wakeup event while the MPC is operating according to a sleep state. Subsequent to wakeup event, at least one system resource is disabled to provide a minimum number of system resources required to re-establish a network connection. In one embodiment, user data from a network server is synchronized on the MPC without user intervention; the mobile platform system resumes operation according to the sleep state. In one embodiment, a wakeup alarm is programmed according to a user history profile regarding received e-mails. In a further embodiment, data synchronizing involves disabling a display, and throttling the system processor to operate at a reduced frequency. Other embodiments are described and claimed.01-05-2012
20110167286Fine Grain Non-Intrusive Distributed Information Technology Infrastructure Power Management System - A power management system includes a power management agent and a computing device comprising a CPU, memory, persistent storage, operating system, and communication mechanism. A power management server communicates with the communication mechanism using a secure communication protocol, communicates with the power management agent when the agent is in the connected mode, and provides a non-intrusiveness monitoring function. The power management agent operates in both a connected and disconnected mode, and maintains a list of applications, tasks, and activities and their dependency on power manageable components in the device. An application control framework defines a non-intrusiveness of a device for every application on the device and a usage of the device to allow fine grain control of the device. A management station sends a set of monitoring commands to at least one agent to monitor the intrusiveness of a power management function on the device without enforcing any power management.07-07-2011
20110167287PROVIDING POWER TO AN ACCESSORY DURING PORTABLE COMPUTING DEVICE HIBERNATION - A portable computing device (PCD) can selectively supply power to an accessory during PCD hibernation. In some embodiments, the PCD's default behavior is to disable accessory power output during hibernation, and this default behavior can be overridden in response to a request from a connected accessory. The accessory can use the power supplied during PCD hibernation to detect user input (or other) events and wake the PCD from hibernation in response to a detected event. Some accessories can wake the PCD by emulating accessory detachment and reattachment.07-07-2011
20120011386MEMORY APPARATUS OPERABLE TO PERFORM A POWER-SAVING OPERATION - A memory apparatus includes multiple memory circuits and an interface circuit to present to a host system emulated memory circuits. The interface circuit includes a first component of a first type and a second component of a second type, the first component and the second component being operable to present a host-system interface to the host system and to present a memory-circuit interface to the plurality of memory circuits, in which there is a difference in at least one aspect between the host-system interface and the memory circuit interface. At least one of the first and second components is operable to identify one or more memory circuits that is not being accessed and to perform a power-saving operation on the one or more memory circuits identified as not being accessed, where the power-saving operation includes placing the memory circuits identified as not being accessed in a precharge power down mode.01-12-2012
20120011384Network Apparatus Having Routing Function and Power Management Method Thereof - A power management method for a USB system comprises the steps of: detecting a connecting condition between the USB host and the USB device, reading a descriptor of the USB device, monitoring status of the USB host, selecting an operating mode of the USB device according to the status of the USB host, and selecting a corresponding transmission type via a USB port to transmit a control signal to the USB device so as to switch the operation mode of the USB device.01-12-2012
20120011383Techniques Employing Flits for Clock Gating - A method includes receiving data intended for a destination and sending a power flit to the destination via a route. The power flit wakes at least one component on the route. The method also includes sending the data as a data flit to the destination via the route after sending the power flit. The power flit can include a header indicating the destination and a source of the received data. The power flit can be formed by extracting destination data from the received data.01-12-2012
20120011382SYSTEM AND METHOD FOR CONSERVING POWER IN A MEDICAL DEVICE - A system and method for conservation of battery power in a portable medical device is provided. In one example, a processor arrangement that includes a plurality of processors is implemented. At least one of these processors is configured to execute the critical functions of the medical device, while one or more other processors assume a reduced service level, thereby drawing significantly less power. According to this arrangement, the medical device conserves energy by drawing the additional electrical power needed to activate the additional processing power only when needed.01-12-2012
20120011385IMAGE PROCESSING APPARATUS, IMAGE PROCESSING SYSTEM, POWER SAVING MODE SHIFT CONTROLLING METHOD, COMPUTER-READABLE RECORDING MEDIUM, AND COMPUTER PROGRAM - Considering a position relation between client devices and an image processing apparatus, the image processing apparatus is appropriately shifted to a power saving mode. A position information storage portion stores information of a position relation between each of the client devices and the image processing apparatus, a monitored target extracting portion extracts, from among the client devices, a client device to be monitored whether or not to be online based on information including at least the information of the position relation, a status confirming portion confirms whether or not the client device extracted is online, a power saving mode shift judging portion judges whether or not to shift the image processing apparatus to a power saving mode based on a confirmation result, and a power controlling portion controls shifting to the power saving mode of the image processing apparatus based on a judgment result.01-12-2012
20120017105ENERGY EFFICIENT ETHERNET NETWORK NODES AND METHODS FOR USE IN ETHERNET NETWORK NODES - The present invention relates to a transmitting node for transmitting data to a receiving node over at least one Ethernet link comprising a data communication unit arranged to transmit data over the at least one Ethernet link, and a control unit arranged to control the data communication unit so as to maintain the at least one Ethernet link in a link active state, characterized in that the control unit is arranged to operate in a first IDLE state in which IDLE data packets are transmitted periodically through the data communication unit over the at least one Ethernet link according to at least one predetermined IDLE data packet timing interval, and in said first IDLE state, power down at least one component comprised in the data communication unit in between the periodic transmissions of IDLE data packets. The present invention further relates to a method for use in a transmitting node, a receiving node, a network node and a system.01-19-2012
20120017104COMPUTER AND POWER MANAGEMENT SYSTEM FOR COMPUTER - The power consumption of a computer is dynamically managed independent of the OS or applications and without any delay time caused by system control. A blade server has server blades each including a processor, a power-saving control unit and a power sensor unit; a power supply box that supplies power to the server blades; and a single service processor which defines an electric current consumption upper limit value in the power sensor unit via the power-saving control unit of each server blade. When the electric current consumption of the server blades exceeds the electric current consumption upper limit value, a signal outputted by the power sensor unit is communicated to the processor, the operating frequency of the processor is controlled, and the maximum average power is controlled to be at or below the power consumption upper limit value.01-19-2012
20120023354SENSING DEVICE AND ELECTRONIC APPARATUS - A sensing device includes: a sensor module that includes a group of sensors, at least one of which is set as a motion sensor, and can switch an operation mode to an overall operation mode in which all of the group of sensors operate and a partial operation mode in which a part of the sensors including the at least one sensor set as the motion sensor operate; and a control unit that controls the switching of the operation mode of the sensor module on the basis of an output from the motion sensor.01-26-2012
20120233483COMPUTER SYSTEM AND OPERATION METHOD APPLICABLE THERETO - An operation method for a computer system includes: a capacitance button controller detecting whether a capacitance button group is touched; if a capacitance power button of the capacitance button group is touched, a system platform receiving a power button signal in a first logic state and changing an operation state of the system platform; if the capacitance power button is touched for longer than a predetermined time, shutting down the system platform; if the capacitance power button is touched for not longer than the predetermined time, the system platform receiving the power button signal in a second logic state and determining a subsequent operation status of the system platform and the capacitance button controller based on a system status signal; and if the capacitance button group is touched but the capacitance power button is not touched, the capacitance button controller entering into a power-saving state.09-13-2012
20120159219VR POWER MODE INTERFACE - In some embodiments, a control interface and associated control entity are provided to synchronize CPU activities to CPU power delivery network such as VR mode of operation, based on CPU power demands or the prediction of actual CPU current consumption. In some embodiments, the synchronization is controlled in such timely fashion so that the power states or power-related events are entered by a CPU (or core) based on characteristics of a VR supplying power to the CPU (or core).06-21-2012
20120159217METHOD AND APPARATUS FOR PROVIDING EARLY BYPASS DETECTION TO REDUCE POWER CONSUMPTION WHILE READING REGISTER FILES OF A PROCESSOR - A method and apparatus are described for reducing power consumption in a processor. A micro-operation is selected for execution, and a destination physical register tag of the selected micro-operation is compared to a plurality of source physical register tags of micro-operations dependent upon the selected micro-operation. If there is a match between the destination physical register tag and one of the source physical register tags, a corresponding physical register file (PRF) read operation is disabled. The comparison may be performed by a wakeup content-addressable memory (CAM) of a scheduler. The wakeup CAM may send a read control signal to the PRF to disable the read operation. Disabling the corresponding PRF read operation may include shutting off power in the PRF and related logic.06-21-2012
20130198547System 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.08-01-2013
20090164821METHOD AND A SYSTEM FOR CONTROLLING A SLEEP MODE OF A DEVICE IN A WIRELESS COMMUNICATIONS NETWORK OR IN A MOBILE POINT-TO-POINT CONNECTION - The present invention relates to a method for controlling a sleep mode of a device in a wireless communications network or in a mobile point-to-point connection in order to turn off system components of the device, especially to turn off a medium access control (06-25-2009
20090172448ELECTRONIC DEVICE WITH SERIAL ATA INTERFACE AND POWER SAVING METHOD FOR SERIAL ATA BUSES - In an electronic device with a serial ATA interface, upon detection of the issue or reception of a preset command, a confirmation device, such as a CPU, confirms the completion of execution of the command. Upon confirming the completion of execution of the command, a controller, which may also be the CPU, controls shifting of the serial ATA interface to a power saving mode.07-02-2009
20120159223IMAGE FORMING APPARATUS AND PRINT SYSTEM - An image forming apparatus monitors sleep-cancelling events, and when a sleep-cancelling event occurs, stores an identifier and a sleep-cancellation time of the event. If a start time of a sleep mode is reached when (i) the apparatus is in a standby mode and (ii) one or more sleep-cancelling events specifying sleep-cancellation times later than the start time have been stored, the apparatus calculates power consumption required to maintain the standby mode for a period from the start time to the earliest sleep-cancellation time, as a power-saving amount savable during the period. Also, a recovery power amount required for recovery from the sleep mode to the standby mode is calculated on the assumption that the sleep mode is started at the start time and is cancelled at the earliest sleep-cancellation time. Switching to the sleep mode is performed only when the power-saving amount is greater than the recovery power amount.06-21-2012
20120159221APPARATUS, METHOD, AND SYSTEM FOR EARLY DEEP SLEEP STATE EXIT OF A PROCESSING ELEMENT - An apparatus and method is described herein for providing an early wake scheme before spawning a new thread. An early wake indication is provided an amount of time, which may include an amount of time to perform a demotion from a current power state to a lower power state that is closer to an active power state, before a new thread is to be spawned and executed on a processing element (core or thread). Upon encountering the spawn of the new thread, such as a helper thread, the processing element is further transition from the lower power state to an active power state. And the new thread is executed on the processing element without incurring the latency associated with execution of the new thread waiting for the demotion from the current power state to an active power state after the spawn of the new thread.06-21-2012
20120159220Portable Electronic Device and Method for Recovering Power to a Rechargeable Battery Used Therein - A portable electronic device employs a method for recovering power to a rechargeable battery used therein when the battery is in a low state of charge. The portable electronic device includes at least a power management subsystem (PMS), a main processor subsystem, and the battery. When the battery is incapable of supplying boot-up power to the processor subsystem, power is provided from a battery charger to the PMS to power-up the PMS. The PMS then determines the battery's type and a state-of-charge (SOC) parameter for the battery, and compares the SOC parameter to a threshold, which is based on at least the battery type. If the SOC parameter is less than the threshold, power is provided from the battery charger to the battery for use in recharging the battery. Otherwise, power is supplied from the battery to the processor subsystem to facilitate general operation of the portable electronic device.06-21-2012
20080313481Systems and Methods for Wake-on-LAN for Wireless LAN Devices - A system and method for wireless waking computing devices over a computer network is provided. A signal is broadcast over the network that includes one or more device specific wake-up data sequences. Each device specific wake-up data sequence includes multiple iterations of the hardware address of the wireless network card associated with that device. While in a reduced power or “sleep mode”, the wireless network card monitors wireless channels for packets containing a wake-up data sequence. If a wake-up data sequence is received, the sequence is matched against the hardware address information for that network card. If a match is determined, the network card sends a signal to the computing device causing full system power to be restored. A signal is sent to the network confirming that the device has been successfully woken from the sleep mode.12-18-2008
20110072287POWER MANAGEMENT IMPROVEMENTS - A data processing system refreshes a display at a first frequency when operating in a first power mode. The data processing system refreshes the display at a second frequency when operating in a second mode. The first frequency is higher than the second frequency, and the second power mode is configured to consume less power than the first power mode.03-24-2011
20120159222METHOD AND SYSTEM FOR RAPID ENTRY INTO AND FOR RAPID EXITING FROM SLEEP STATES FOR PROCESSORS OF A PORTABLE COMPUTING DEVICE - A method and system for managing sleep states of a portable computing device are described. They include maintaining a sleep set of resource states and an active set of resource states in memory. A request may be issued for a processor to enter into a sleep state. This causes a controller to review a trigger set to determine if a shut down condition for the processor matches one or more conditions listed in the trigger set. Each trigger set may comprise a “trigger event” that may allow a controller to select a specific resource set which is desired by a particular processor based on a trigger event detected by a system power manager. If a trigger set matches a shut down condition, then switching states of one or more resources in accordance with the sleep set may be made by the controller without using a software handshake.06-21-2012
20110107131SAVING POWER WHEN IN OR TRANSITIONING TO A STATIC MODE OF A PROCESSOR - A method for reducing power utilized by a processor including the steps of determining that a processor is transitioning from a computing mode to a mode is which system clock to the processor is disabled, and reducing core voltage to the processor to a value sufficient to maintain state during the mode in which system clock is disabled.05-05-2011
20110099404ELECTRONIC DEVICE, METHOD OF CONTROLLING AN ELECTRONIC DEVICE, AND SYSTEM-ON-CHIP - An electronic device is provided which comprises at least one processing unit (CPU) for processing at least one application having at least one task at least one operating frequency, an user event detecting unit (UED) for detecting at least one user event which initiates at least one task with an associated user event execution time, and a power manager (PM) for managing a power consumption of the processing unit (CPU) by controlling the operating frequency of the processing unit (CPU) in dependence of the associated user event execution time.04-28-2011
20110099403SERVER MANAGEMENT APPARATUS AND SERVER MANAGEMENT METHOD - A server management apparatus for lowering migration costs during scale-in/scale-out and workload consolidation of a cluster system(s) to thereby reduce power consumption is disclosed. The apparatus manages a physical server group which renders operative a virtual server group thereon and, when putting into practice a cluster system including a plurality of virtual servers placed in the physical server group, manages the layout state of virtual servers pursuant to the load state of the virtual server group. When executing scale-in, a virtual server operating on a physical server with the minimum number of operative virtual servers is specified as a shutdown target. When executing scale-out, a workload variation is predicted to control a scale-out destination of cluster system so that load variation-resembled cluster systems gather on the same physical server. The scale-in execution timing is delayed if the predicted load variation tends to rise and accelerated if it falls.04-28-2011
20110099402METHOD AND APPARATUS FOR ACTIVIATING SYSTEM COMPONENTS - A selected thread is scheduled to run on a corresponding master of a multiple threaded processing system. When the priority of the selected thread is high, the selected thread is run on the corresponding master. When the priority of the selected thread is low and the corresponding master is in an operational mode, the selected thread is run on the corresponding master. When the priority of the selected thread is low and the corresponding master is in a low power mode, the selected thread is selectively run on the corresponding master based on an amount of time that the corresponding master has been in the low power mode since its most recent entrance into the low power mode.04-28-2011
20110099401Microcontroller system - A microcontroller system includes a microcontroller, which is able to be switched over between a state having high power consumption and a state having restricted power consumption, a status register, a timer and a first logic assembly that is connected to the timer and the status register, and, in response to receiving a time-out signal from the timer, causes a transition of the microcontroller from the state of restricted power consumption to the state of high power consumption, if the content of the status register has a first specified value.04-28-2011
20090132843CURRENT MODE BUS INTERFACE SYSTEM, METHOD OF PERFORMING A MODE TRANSITION AND MODE CONTROL SIGNAL GENERATOR FOR THE SAME - A current mode bus interface system includes a host interface device configured to transmit a reference current and a clock current, and to transmit a data current during a first transfer mode, and to receive a reverse direction data current and compare the reverse direction data current with the reference current to generate a reverse direction data voltage during a second transfer mode; and a client interface device configured to receive the reference current and the clock current and compare the reference current with the clock current to generate a clock voltage, to receive the data current and compare the data current with the reference current to generate a data voltage during the first transfer mode, and to transmit the reverse direction data current through a conducting wire over which the data current is received during the second transfer mode.05-21-2009
20120131370CONSERVING POWER IN A COMPUTER SYSTEM - A power management unit (PMU) may determine an optimal power saving state using a break-even period of a power saving state and an expected idle duration based on a first policy. The PMU may determine the optimal power saving state using a first break even period and actual idle duration based on a second policy. The break-even period may equal a minimum time a computer system should remain in a power saving state to compensate for the power consumed by the system to enter and exit that power saving state. The expected idle time duration is determined as an average of idle duration and a recent sample of idle duration. The actual idle duration is the difference of a first and second time point that represents entry and exit points to and from the power saving state. The PMU may transition the system to the optimal power saving state.05-24-2012
20120131369SYSTEMS AND METHODS FOR WAKING WIRELESS LAN DEVICES - A system and method for wireless waking computing devices over a computer network is provided. A signal is broadcast over the network that includes one or more device specific wake-up data sequences. Each device specific wake-up data sequence includes multiple iterations of the hardware address of the wireless network card associated with that device. While in a reduced power or “sleep mode”, the wireless network card monitors wireless channels for packets containing a wake-up data sequence. If a wake-up data sequence is received, the sequence is matched against the hardware address information for that network card. If a match is determined, the network card sends a signal to the computing device causing full system power to be restored. A signal is sent to the network confirming that the device has been successfully woken from the sleep mode.05-24-2012
20120131368ELECTRONIC DEVICE AND POWER SAVING METHOD THEREOF - An electronic device includes an input unit, a memory, a page flipping control unit, a buffer, a display, a processor and a switching unit. The input unit generates flipping commands in response to operations of a user. The memory stores a document. The processor displays the document in response to a document opening operation of the user, retrieves a predetermined page range of pages of the document from the memory, and stores the retrieved pages of the document in the buffer. The page flipping control unit receives the flipping commands, accesses the buffer, and flips pages on the display. The switching unit is connected to the memory, the display, and the buffer, and establishes a connection between the display, the buffer and the processor or establishes a connection between the display, the buffer, and the page flipping control unit under control of the processor.05-24-2012
20120131367DEVICE AND METHOD FOR CONTROLLING SECONDARY BATTERY - A secondary battery control device having a sleep mode includes a current detection element for detecting a charging/discharging current value of a battery, a voltage detection element for detecting an open-circuit voltage value of the battery, and a control section for calculating the remaining capacity of the battery based on the detected values. When the control section enters the sleep mode, the control section sets, in a wake timer, based on the remaining battery capacity and the discharging current value at this time, an amount of time required for the remaining battery capacity to reach a predetermined value (about 5%), as an amount of time required for the control section to be restored to a normal mode. When the set amount of time has passed, the control section is restored to the normal mode, and corrects the remaining battery capacity to obtain an accurate remaining battery capacity.05-24-2012
20120216062DEVICE, POWER-SAVING CONTROL METHOD, AND STORAGE MEDIUM - A device having at least one power-saving mode includes a storage unit configured to store a program; an advance notification unit configured to send, to the program, an advance notice of transition to the power-saving mode prior to transition start timing at which the transition to the power-saving mode is started; a transition determining unit configured to query the program, at the transition start timing, whether the transition to the power-saving mode is acceptable; and a transition control unit configured to cause the device to transition to the power saving mode if the transition to the power-saving mode is acceptable for the queried program.08-23-2012
20120166850INFORMATION 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.06-28-2012
20120166847BATTERIES FOR ELECTRIC TOOLS - A battery for an electric tool includes at least one battery cell, a peripheral device operable to detect a battery condition of the at least one battery cell, and a microcomputer communicating with the peripheral device. The microcomputer periodically operates the peripheral device for detecting the battery condition during the time when the battery is not electrically connected to the electric tool.06-28-2012
20120166846USB SYSTEM AND POWER MANAGEMENT MODULE AND METHOD THEREOF - A power management module is configured to set up a power mode of a computer system. A peripheral device having a Universal Serial Bus (USB) is connected to the computer system. The power management module includes an Operating System (OS) and a filter driver. The OS is configured to set up the power mode of the computer system, and the filter driver is configured to change the power mode of the computer system according to a packet transmitting/receiving status of the peripheral device.06-28-2012
20120166845POWER STATE SYNCHRONIZATION IN A MULTI-CORE PROCESSOR - A multi-core processor includes microcode distributed in each core enabling each core to participate in a de-centralized inter-core state discovery process. In a related microcode-implemented method, states of a multi-core processor are discovered by at least two cores participating in a de-centralized inter-core state discovery process. The inter-core state discovery process is carried out through a combination of microcode executing on each participating core and signals exchanged between the cores through sideband non-system-bus communication wires. The discovery process is unmediated by any centralized non-core logic. Applicable discoverable states include target and composite power states, whether and how many cores are enabled, the availability and distribution of various resources, and hierarchical structures and coordination systems for the cores. The inter-core state discovery process may be carried out in accordance with various hierarchical coordination systems involving chained inter-core communications.06-28-2012
20120166843METHOD, APPARATUS AND SYSTEM TO TRANSITION SYSTEM POWER STATE OF A COMPUTER PLATFORM - Techniques to tie a processor power state transition on a platform to another power state transition on the platform. In an embodiment, processor governor functionality of an operating system detects an idle condition of a processor executing the operating system. Based on the processor idle condition and one or more indicated conditions of other platform devices, tying logic may determine a system power state to transition the platform to. For example, the tying logic may select from one of a plurality of idle standby system power states.06-28-2012
20120166841EVENT SYSTEM AND TIMEKEEPING FOR BATTERY MANAGEMENT AND PROTECTION SYSTEM - Operating a battery management and protection system includes generating a set of events each of which has a respective frequency F/n06-28-2012
20120166840METHOD AND APPARATUS FOR IMPROVING THE RESUME TIME OF A PLATFORM - A method and apparatus for improving the resume time of a platform. In one embodiment of the invention, the context of the platform is saved prior to entering an inactive state of the platform. When the platform is switched back to an active state, it reads the saved context and restores the platform to its original state prior to entering the inactive state. In one embodiment of the invention, the platform determines whether it should compress the saved context before storing it in a non-volatile memory based on the operating condition of the platform. This allows the platform to select the optimum method to allow faster resume time of the platform.06-28-2012
20120216063NETWORK COMMUNICATION DEVICE, PERIPHERAL APPARATUS, AND NETWORK COMMUNICATION METHOD - A network communication device includes a first control unit that has a first application, a second control unit that has a second application and a communication processing section, and a shared storage unit, wherein, in a first mode where the first control unit is in an operation state, the first application performs a predetermined process using the shared storage unit, and the communication processing section performs communication in response to an instruction from the first application, and wherein, if the first control unit transitions from the first mode to a second mode in which power consumption is lower than that in the first mode, the first application stops execution of the process, the second application performs a process based on data related to the first application, stored in the shared storage unit, and the communication processing section performs communication in response to an instruction from the second application.08-23-2012
20120216061DATA PROCESSING APPARATUS AND POWER SAVING CONTROL METHOD OF THE SAME - Reception of data by an operating system via a network is monitored outside of the operating system. When reception of a packet to which the operating system of a data processing apparatus should respond is detected, transition to a power saving state is deferred.08-23-2012
20120216060NOISE REDUCTION CIRCUIT, ELECTRONIC DEVICE, AND NOISE REDUCTION METHOD - According to one exemplary embodiment, a noise reduction circuit includes: a controller which changes any one of a cycle of an active state and a time-period of each of the active state and an idle state to cause a CPU to intermittently operate.08-23-2012
20120137155ELECTRONIC APPARATUS AND POWER SAVING CONTROL METHOD FOR ELECTRONIC APPARATUS - According to one embodiment, an electronic apparatus includes a first power saver, a second power saver and a controller. The first power saver executes switching from an operable condition to a first power saving state. The second power saver executes switching from the first state to a second state in which power consumption is smaller than that in the first state. The controller determines whether timer event processing executable in the first state is scheduled within a predetermined period of time when the switching from the operable condition to the second state is required, and controls the first power saver and the second power saver so as to execute switching to the first state and maintains the first state without switching to the second state, when the timer event processing is scheduled within the predetermined period of time.05-31-2012
20120137154POWER SUPPLY CONTROL DEVICE, IMAGE PROCESSING APPARATUS, POWER SUPPLY CONTROL METHOD AND COMPUTER READABLE MEDIUM FOR CONTROLLING POWER SUPPLY - A power supply control device includes a power supply controller that selectively performs a power supply mode and a power saving mode, a detector that detects a moving body in a predetermined range in the vicinity of the processor, a power supply mode change instruction unit that changes an operation mode from the power saving mode to the power supply mode when the detector detects the moving body, an information history unit that acquires information related to an operation for the processor in the power supply mode, and a sensitivity adjusting unit that adjusts a detection sensitivity of the detector for the moving body on the basis of the information acquired by the information history unit for a period from a change of the operation mode from the power saving mode to the power supply mode to a change of the operation mode to a next power saving mode.05-31-2012
20120137153SERVER SYSTEM - A server system including a rack, motherboards and direct current (DC) transformation units is provided. Each of the motherboards is inserted on the rack, and generates a power on signal. Each of the DC transformation units is on the rack and receives a DC voltage. When each of the motherboards is electrically connect to the corresponding DC transformation unit, each of the DC transformation units generates a standby voltage and a standby voltage ready signal to the motherboard according to the DC voltage so that the motherboard enters a standby state according to the standby voltage ready signal. When the motherboard corresponding to each of the DC transformation unit generates the power on signal, the DC transformation unit receives the power on signal and generates an operating voltage and an operating voltage ready signal to the motherboard, and the motherboard is turned on according to the operating voltage ready signal.05-31-2012
20110185209COMPUTER THAT REDUCES POWER CONSUMPTION WHILE MAINTAINING A SPECIFIC FUNCTION - A laptop PC is enabled to operate with small power consumption while maintaining a specific function. A laptop PC is provided with a HDD and can operate in a normal mode and a doze mode as a new operating mode. In the doze mode, the computer can operate with power consumption less than in the normal mode while executing a process to implement a specific function. In the doze mode a shift event is created, and a process existing at that time is force-suspended or an I/O processing completion notification is suspended to a process that makes an I/O request to the HDD. As a result, the laptop PC is enabled to operate with small power consumption by stopping the HDD while maintaining a specific function.07-28-2011
20110185207PCMCIA MEMORY CARD WITH ETHERNET/WIRELESS CONNECTIVITY AND BATTERY BACKUP FOR AVIONICS APPLICATIONS - A method to facilitate data transfer to a line replaceable unit that lacks a transmission control protocol/Internet protocol (TCP/IP) interface is provided. The method comprises interfacing a memory-processing card to the line replaceable unit. The memory-processing card includes a memory, a central processing unit module, an interface to the line replaceable unit, an interface to an access point communicatively coupled to the central processing unit module, and a bus arbitrator communicatively coupled to the memory, the central processing unit module, and the interfaces. The method also includes determining a state of the line replaceable unit at the bus arbitrator responsive to the interfacing, providing access at the bus arbitrator from the central processing unit module to the memory when the determined state of the line replaceable unit is OFF, and providing access at the bus arbitrator from the line replaceable unit to the memory when the determined state of the line replaceable unit is ON.07-28-2011
20120173908Hibernation During Meetings - A method, computer program product, and system for hibernation during meetings is described. A method may comprise designating a base computer system of a meeting. The method may further comprise determining if a user is in the meeting. The method may also comprise hibernating a computer system associated with the user based upon, at least in part, a hibernation policy, if it is determined that the user is in the meeting.07-05-2012
20100299546Method for Operating a Control Computer - A method for operating a control computer connected to a system to be controlled. The system is connected to a power supply line by a first switch, with the control computer being shut down by execution of a control command to enter an idle state. An uncoordinated switching of the control computer and the system is thereby avoided and operational reliability is increased.11-25-2010
20120179927METHOD, APPARATUS, AND SYSTEM FOR ENERGY EFFICIENCY AND ENERGY CONSERVATION INCLUDING AUTONOMOUS HARDWARE-BASED DEEP POWER DOWN IN DEVICES - Embodiments of systems, apparatuses, and methods for energy efficiency and energy conservation including enabling autonomous hardware-based deep power down of devices are described. In one embodiment, a system includes a device, a static memory, and a power control unit coupled with the device and the static memory. The system further includes a deep power down logic of the power control unit to monitor a status of the device, and to transfer the device to a deep power down state when the device is idle. In the system, the device consumes less power when in the deep power down state than in the idle state.07-12-2012
20100275048SEMICONDUCTOR INTEGRATED CIRCUIT - A semiconductor integrated circuit has an internal circuit to which operation power is supplied or interrupted, and a power supply control circuit for controlling the supply and interruption of operation power to the internal circuit in accordance with an operation mode. The power supply control circuit has a storage circuit and a power supply control sequence circuit. The storage circuit inputs and holds switching instruction data for instructing switching between supply and interruption of the operation power and low-power-consumption-mode data determining an operation mode of the interruption of operation power and cancellation of the interruption. The power supply control sequence circuit performs a control of transition between the interruption and supply of the operation power with reference to the switching instruction data and the low-power-consumption-mode data held in the storage circuit and, at the time of cancelling a state of interrupting the supply of operation power in response to the switching instruction data in the operation power supply interruption state according to the low-power-consumption-mode data, stops newly referring to the low-power-consumption mode data until an operation of the internal circuit to which the operation power is to be supplied is assured.10-28-2010
20100275047INFORMATION PROCESSING APPARATUS AND POWER-SAVING EFFECT DISPLAY METHOD - According to one embodiment, an information processing apparatus having a power-saving function includes a power-saving control module, a power consumption measuring module, a log accumulation module, and a log display module. The power-saving control module sets each of predetermined components in the information processing apparatus in either a normal operation state or a power-saving state, based on power-saving parameters corresponding to the predetermined components. The power consumption measuring module measures a total power amount consumed by the apparatus in a predetermined time period. The power-saving effect calculation module calculates a power-saving effect value indicative of a power amount reduced in the predetermined time period by the setting of the power-saving parameters. The log storing module stores information indicative of the total power amount and the power-saving effect value. The log display module displays cumulative values which are periodically accumulated the total power amounts and the power-saving effect values.10-28-2010
20120233481METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR DECREASING POWER CONSUMPTION OF AN APPARATUS - According to an exemplary embodiment of the invention, there is provided a method, comprising: determining that an apparatus has data to be sent to a receiving entity during a sleep period of a power saving cycle, the power saving cycle comprising a wake period during which a receiver is turned on and a sleep period during which the receiver is turned off; and delaying transmission of a data indication to the receiving entity by a delaying amount.09-13-2012
20100011234APPARATUS, SYSTEM, AND METHOD FOR REDUCING IDLE POWER IN A POWER SUPPLY - An apparatus, system, and method is provided for reducing idle power in a power supply. The apparatus includes a connection module to determine whether a load is connected to the output terminal of the power supply. Also included is an idle module that turns off the power supply for an idle interval when the connection module determines that a load is not connected to the output. A monitor module turns on the power supply for a monitor interval when the idle interval ends. During the monitor interval, the connection module determines whether the load has been connected to the output terminal of the power supply. An activation module turns on the power supply if the connection module determines, during the monitor interval, that the load has been connected to the power supply. If the load has not been connected, another idle interval is initiated.01-14-2010
20120317431SYSTEM 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 systems having multiple processing elements. In at least one embodiment, the present invention is intended to control the sleeping/wakefulness of processing elements, as necessary, to maintain a preferred level of power utilization in the platform. Activity is routed to sequestered processing elements instead of sleeping processing elements to save power.12-13-2012
20120185717APPARATUS AND METHOD FOR REDUCING POWER CONSUMPTION IN PORTABLE TERMINAL - An apparatus and method for reducing power consumption of a portable terminal are provided. More particularly, an apparatus and method for reducing power consumption generated in an idle state in order to solve a power consumption problem in a portable terminal are provided. The apparatus includes a state determination unit which is configured independently from an application processor for controlling applications and which wakes up when entering an idle mode to allow the application processor to sleep, and thereafter determines a state of the portable terminal, and if it is determined that the portable terminal escapes from the idle mode, allows the application processor to wake up.07-19-2012
20120185718POWER MANAGEMENT SYSTEM, POWER MANAGEMENT APPARATUS, NETWORK MANAGEMENT APPRATUS, INFORMATION PROCESSING APPARATUS, PROGRAM, POWER MANAGEMENT METHOD, AND INFORMATION PROCESSING METHOD - There are provided a power management system, a power management apparatus, a program, and a power management method that perform power management of terminal apparatuses connected to a network, while ensuring user convenience. A power management system 07-19-2012
20120260115Inter-Processor Communication Channel Including Power-Down Functionality - Apparatuses and methods are disclosed for implementing an inter-processor communication channel including power-down functionality. In one embodiment, the apparatus may comprise a first integrated circuit (IC), a second IC coupled to the first IC via a communication interface, wherein the first IC is in one or more low power states and unable to monitor the communication interface. The apparatus may further comprise an inter-processor communication (IPC) channel coupled between the first and second ICs, wherein the IPC channel is separate from the communication interface and wherein the second IC generates at least one advisory signal to the first IC via the IPC channel.10-11-2012
20120185713SERVER, STORAGE MEDIUM, AND METHOD FOR CONTROLLING SLEEP AND WAKEUP FUNCTION OF THE SERVER - In a method for controlling a sleep and wakeup function of a server, the server includes a baseboard management controller (BMC) and an operating system (OS). The method receives a sleep control command input by a user through the BMC, and controls the server to work in a sleep state according to the sleep control command. The method further receives a wakeup control command input by the user through the BMC, and controls the server to work in a wakeup state according to the wakeup control command07-19-2012
20120185715METHOD AND APPARATUS FOR FACILITATING DEVICE HIBERNATION - One embodiment of the present invention provides a system that enables a computing device to save additional power by entering a “hibernation mode,” wherein the active state of the computing device is preserved in non-volatile storage while power to volatile storage is turned off. During operation, the system reanimates a computing device from a hibernation image by restoring reanimation code from the hibernation image and then executing the reanimation code. While executing this reanimation code, the system restores the rest of the hibernation image by, reading compressed data containing the rest of the hibernation image, and decompressing the compressed data using computational circuitry within the computing device. During this process, the decompression operations are overlapped with the reading operations to improve performance.07-19-2012
20120185714METHOD, APPARATUS, AND SYSTEM FOR ENERGY EFFICIENCY AND ENERGY CONSERVATION INCLUDING CODE RECIRCULATION TECHNIQUES - An apparatus, method and system is described herein for enabling intelligent recirculation of hot code sections. A hot code section is determined and marked with a begin and end instruction. When the begin instruction is decoded, recirculation logic in a back-end of a processor enters a detection mode and loads decoded loop instructions. When the end instruction is decoded, the recirculation logic enters a recirculation mode. And during the recirculation mode, the loop instructions are dispatched directly from the recirculation logic to execution stages for execution. Since the loop is being directly serviced out of the back-end, the front-end may be powered down into a standby state to save power and increase energy efficiency. Upon finishing the loop, the front-end is powered back on and continues normal operation, which potentially includes propagating next instructions after the loop that were prefetched before the front-end entered the standby mode.07-19-2012
20120084591POWER MANAGEMENT SYSTEMS AND METHODS - Systems and methods for efficiently managing power consumption in portable electronic devices are provided. In one embodiment, power management circuitry may operate the device in a low power mode (e.g., a HIBERNATION mode), but enables the device to quickly become fully operational in response to a power-ON event, despite having been in that low power mode. This may be accomplished by powering a processor engaging memory (e.g., SDRAM) while other circuitry are powered OFF. In another embodiment, the display may be driven by an application portion when operating in an ON mode, but may be driven by a carrier portion when the application is operating in a low power mode. In another embodiment, various discrete circuitry portions are selectively turned ON and OFF, depending, for example, on whether a particular discrete circuitry portion is idle or its processing functionality is not needed.04-05-2012
20120084590IMPLEMENTING SLEEP LINES IN COMMODITY ETHERNET HARDWARE - A first Network Interface Controller operates in a low power mode. The first Network Interface Controller transitions from low power mode to a power-up sequence if a sleep packet in not received from a second Network Interface Controller at the first Network Interface Controller within a predetermined time threshold.04-05-2012
20120084589Hardware Dynamic Cache Power Management - In an embodiment, a control circuit is configured to transmit operations to a circuit block that is being powered up after being powered down, to reinitialize the circuit block for operation. The operations may be stored in a memory (e.g. a set of registers) to which the control circuit is coupled. In an embodiment, the control circuit may also be configured to transmit other operations from the memory to the circuit block prior to the circuit block being powered down. Accordingly, the circuit block may be powered up or powered down even during times that the processors in the system are powered down (and thus software is not executable at the time), without waking the processors for the power up/power down event. In an embodiment, the circuit block may be a cache coupled to the one or more processors.04-05-2012
20120221876LOW POWER CONSUMPTION CIRCUIT AND METHOD FOR REDUCING POWER CONSUMPTION - An exemplary low power consumption circuit includes a microprocessor, a power supply switch module and a main circuit module. The microprocessor is capable of outputting a power control signal and changing a pulse characteristic of the power control signal when the microprocessor switches from a first working mode to a second working mode. The power supply switch module is capable of outputting a power supply signal. The power supply switch module is electrically coupled to the microprocessor to receive the power control signal and thereby modulates a duty cycle of the power supply signal according to a change of the pulse characteristic of the power control signal. The main circuit module is electrically coupled to the power supply switch module to receive the power supply signal and operative with energy provided by the power supply signal. Moreover, a method for reducing power consumption is also provided.08-30-2012
20120221875MULTI-PHASE RESUME FROM HIBERNATE - Resume of a computing device from hibernation may be performed in multiple phases. Each phase may partially restore a state of the computing device to an operational state and may establish an environment in which another phase of the resume is performed. The hibernation information may be partitioned to store separately data to be used at each resume phase. The information may be stored in a compressed form. In a first phase, a boot-level resume loader may restore a portion of the operating system based on a portion of the hibernation information. The restored portion may be used in a second phase to retrieve hibernation information from another portion through the operating system (OS). Multiple processors supported by the OS may read and decompress the hibernation information that is then moved back to operational memory. The operating system may support asynchronous disk input/output or other functions that accelerate the resume process.08-30-2012
20090019299METHOD AND APPARATUS FOR ADJUSTING WAKEUP TIME IN ELECTRICAL POWER CONVERTER SYSTEMS AND TRANSFORMER ISOLATION - An electrical power converter system adjusts a wakeup voltage periodically, to permit earlier connection and/or operation, to increase performance. The electrical power converter system selects between a mathematically adjusted wakeup voltage based on at least one previous period, and a table derived wakeup voltage that takes into account historical information. The electrical power converter system is particularly suited to applications with periodicity such as solar based photovoltaic power generation.01-15-2009
20100313051POWER LINE COMMUNICATION APPARATUS AND METHOD FOR CONTROLLING THE SAME - The embodiments of the present disclosure provide a PLC apparatus and a method for controlling the PLC apparatus. The method includes: acquiring a working state and a network state of the PLC apparatus; and switching the working state of the PLC apparatus in accordance with the working state and the network state of the PLC apparatus. The PLC apparatus includes: a working state acquiring unit adapted to acquire a working state of the PLC apparatus; a network state acquiring unit adapted to acquire a network state of the PLC apparatus; a switching unit adapted to switch the working state of the PLC apparatus in accordance with the network state of the PLC apparatus acquired by the network state acquiring unit and the working state of the PLC apparatus acquired by the working state acquiring unit. The embodiments of the disclosure are used in the design of controlling the PLC apparatus.12-09-2010
20100332880Mobile Electronic Device - An object of the invention is, in a mobile electronic device having a sleep mode for power saving, to make it easy to measure a current in a sleep period without requiring a measurement device with high-resolution precision. On the basis of a reference capacity table and a sleep period current value measured by a measurement device connected from the outside which are stored in a storage unit (12-30-2010
20080301481POWER CONTROL SYSTEM FOR CAR COMPUTER - A power control system for car computer includes a power switching circuit located between a power input terminal of a computer host and an external power source, such that the computer host outputs a keep-power-on signal when a key power is supplied thereto; a power ON/OFF circuit receiving the keep-power-on signal to thereby connect the external power source to the computer host; a key power detection circuit for constantly detecting whether the key power is ON, so that the computer host outputs a shut-down signal when the key power is OFF; a computer shut-down circuit for receiving the shut-down signal from the computer host and thereby driving the computer host to execute shut-down procedures; and a power OFF circuit for sensing an OFF state of the key power and outputting a control signal to drive the power ON/OFF circuit to disconnect the external power source from the computer host.12-04-2008
20080301480COMPUTER SYSTEM AND METHOD FOR CONTROLLING A PROCESSOR THEREOF - A computer system and a method for controlling a processor thereof are provided. A processor management unit (PMU) is programmed by the processor itself or by another processor according to a change of the operating condition of the processor. Then, a notification signal is sent to the PMU by the processor when the processor is entering a standby mode. Upon receiving the notification signal, the PMU adjusts the operating condition of the processor according to the change. Finally, a completion signal is sent by the PMU to the processor after the change of the operating condition of the processor is stabilized. Therefore, the unpredictable behavior caused by premature awakening of the processor during the adjustment of the operating condition can be avoided.12-04-2008
20110004776ELECTRIC DEVICE, AND METHOD AND COMPUTER PROGRAM PRODUCT FOR CONTROLLING POWER SUPPLY IN ELECTRIC DEVICE - An electric device includes at least one or more processing units that perform a predetermined process; a power-supply control unit that controls supply of electric power from a power source to the processing units and shutoff of the supply; a main control unit that performs a start-up process if the main control unit is supplied with power from the power source; and a sub control unit that controls the power-supply control unit so as not to supply the electric power to all or some of the processing units after the start-up process.01-06-2011
20110131437INFORMATION PROCESSING DEVICE - According to one embodiment, an information processing apparatus includes a controller, a wakeup controller, a power source, an input controller, and a switch. The controller configured to perform communications with an external device. The wakeup controller configured to wake up a system in accordance with a request from the external device. The power source configured to generate a driving power to drive the controller and to supply the driving power to the controller. An input controller configured to output a signal according to an operation of an input device. The switch configured to instruct the power source to switch between supply and non-supply of the driving power when a predetermined signal is output from the input controller in a state in which the system is not woken up.06-02-2011
20110131436IMAGE FORMING DEVICE AND METHOD THEREFOR - An image forming device that forms an image on a print medium includes a power saving mode shifting part that shifts a mode of the image forming device to a power saving mode, in which power consumption is decreased, when a set power saving mode shifting time has elapsed during a standby mode, an idle time watching part that measures an idle time in the standby mode from a time of a completion of a previous printing to a time of starting a subsequent printing, a counting part that counts a number of times that the idle time has been equal to or longer than a preset idle reference time, wherein the number of times is a count value, and a shifting time setting part that sets the power saving mode shifting time in response to the count value.06-02-2011
20120239956METHOD OF REDUCING POWER CONSUMPTION OF SYSTEM SOFTWARE USING QUERY SCHEDULING OF APPLICATION AND APPARATUS FOR REDUCING POWER CONSUMPTION USING THE METHOD - A method is provided. The method includes in response to a new query or new input data being input, calculating a required minimum number of cycles per unit time which corresponds to the minimum number of cycles per unit time that is required to process the new query or the new input data, selecting a query to execute first, calculating the number of cycles to be processed during the time period set in advance by multiplying the calculated, required minimum number of cycles per unit time with a time period that is allocated to process the selected query or the input data and is set in advance, and putting a system into a dormant state for a remaining period of time in response to the calculated number of cycles being completely executed within the time period set in advance.09-20-2012
20120324267POWER OPTIMIZATION FOR DATA SERVICES - Systems and methods for optimizing the power of a battery in a mobile device are provided. The systems and methods include receiving a request from at least one of a plurality of applications running on the mobile device. The systems and methods further include determining user characteristics from interacting with at least one of the applications and determining a user dwell time threshold based upon the user's interactions with an application. The systems and methods further include buffering requests if the user dwell time is less than the user dwell threshold level.12-20-2012
20120272082COMMUNICATION APPARATUS COMMUNICATING WITH IPSEC, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM STORING CONTROL PROGRAM THEREFOR - A communication apparatus that is capable of enabling communication even when IPsec life time information is taken over. The communication apparatus is connected to a network via a network interface device and operates in a first power mode or a second power mode with less power consumption. A notification unit notifies the network interface device of IPsec life time information when shifting to the second power mode from the first power mode. A storage unit stores first time information showing time of shifting to the second power mode from the first power mode. An acquisition unit acquires the life time information from the network interface device when shifting to the first power mode from the second power mode. A correction unit corrects the life time information based on second time information showing time of shifting to the first power mode from the second power mode and the first time information.10-25-2012
20120272083IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREFOR, AND STORAGE MEDIUM - An image processing apparatus and a control method therefor are provided, which realize security communication in a power saving mode while suitably maintaining the power saving mode, even if a control unit operating in the power saving mode has fewer resources than a control unit operating in a normal power mode. To accomplish this, the image processing apparatus stores a plurality of security information pieces regarding a security communication, selects a security information piece to be notified to the network interface apparatus from among the security information pieces, and notifies the network interface apparatus of the selected security information piece. The network interface apparatus executes security communication using the notified security information piece, when the image processing apparatus operates in the power saving mode.10-25-2012
20110219251INFORMATION PROCESSING APPARATUS AND CONTROL METHOD OF INFORMATION PROCESSING APPARATUS - An information processing apparatus which operates in a normal mode or a power saving mode in which power consumption is lower as compared to the normal mode includes a volatile storage unit, a first supplying unit configured to supply power to the storage unit, a second supplying unit configured to supply, if the first supplying unit cannot supply power to the storage unit, power to the storage unit, a charging unit configured to charge, if the information processing apparatus is operating in the normal mode, the second supplying unit, a first measurement unit configured to measure an amount of time that the information processing apparatus operates in the normal mode after the information processing apparatus shifts to the normal mode; and09-08-2011
20110239024Low Power Consumption Network Device and Communication Method Thereof - A low power consumption network device includes: a data rate meter for detecting a data rate of the network device; a state machine unit for determining a state of the network device according to the data rate and for generating an instruction signal; and a power control unit for controlling a power consumption state of the network device according to the instruction signal. According to the data rate, the state machine unit controls whether the network device transmits a pause frame to a link partner, so that the link partner stops transmitting data to the network device during a pause period. During the pause period, the power control unit controls the network device into a power saving mode.09-29-2011
20110239023INFORMATION PROCESSING APPARATUS AND CONTROL METHOD OF INFORMATION PROCESSING APPARATUS - An information processing apparatus having a storage unit configured to store data, operated in a normal mode for supplying power to the storage unit or a power saving mode for preventing power supply to the storage unit, includes a determination unit configured to determine whether or not such a condition is established that the information processing apparatus is to be shifted from the normal mode to the power saving mode, and a measurement unit configured to measure an elapse time after a power source of the information processing apparatus is turned on.09-29-2011
20110239021Memory calibration method and apparatus for power reduction during flash operation - A method for providing reduced power consumption in a computer memory system is provided. The method includes calibrating, by a processor, a volatile memory of the computer memory system at a first and a second operating speed, where the second operating speed is higher than the first operating speed. The method also includes operating, by a memory controller coupled to the processor and the volatile memory, the volatile memory at the second operating speed if a main power source provides power to the computer memory system. The method further includes operating, by the memory controller, the volatile memory at the first operating speed if a backup power source provides power to the memory controller and the volatile memory. The backup power source provides power to the memory controller and the volatile memory when there is a loss of main power to the computer memory system.09-29-2011
20120278641Performing Selected Operations Using Low Power-Consuming Processors on User Devices - In one embodiment, a first computing device receives a communication from a second computing device; and if the communication is a ping from the second computing device, then sends a response to the ping to the second computing device using a secondary processor of the first computing device.11-01-2012
20120278643IMAGE FORMING APPARATUS AND IMAGE READING APPARATUS - An image forming apparatus includes: an image forming unit; a power supply controller controls the image forming apparatus to operate in a power saving mode in which supply of power to the image forming unit is cut off and a normal mode; and a plurality of interfaces configured to receive a transition command for transition from the power saving mode to the normal mode. The power supply controller performs: an interface-power supply process of supplying power to at least one of the plurality of interfaces; and a changing process of, in a case where a predetermined signal is input to an operating interface receiving power in the interface-power supply unit in the power saving mode, cutting off power supply to the operating interface and starting power supply to at least one of idle interfaces other than the operating interface.11-01-2012
20120278640WORKSTATION WITH OCCUPANCY SENSING - An occupancy sensing method includes monitoring a space associated with a computer workstation for an occupant, generating an occupancy signal in response to monitoring the space, processing the occupancy signal at the computer workstation, and performing one or more power management functions at the computer workstation in response to the occupancy signal. The space associated with the computer workstation may be monitored by an occupancy sensor coupled to the computer workstation. The occupancy sensor may be adjusted from the computer workstation. A request may be transmitted from the computer workstation to a building automation system in response to the occupancy signal, and the building automation system may perform a power management function in response to the request from the computer workstation.11-01-2012
20120278642CENTRALIZED POWER AND HEAT MANAGEMENT FOR DATA DISK DRIVES OF A DATA STORAGE SYSTEM - A method of controlling spinning of data disk drives, a data storage system including multiple data disk drives and a power zone aware device are disclosed herein. In one embodiment, the power zone aware device includes: (1) a policy module configured to define at least one power zone in the data storage system and assign a power zone policy thereto and (2) a management module coupled configured to direct operation of data disk drives in the power zone based on the power zone policy.11-01-2012
20110264938METHOD AND SYSTEM FOR DETERMINING AN ENERGY-EFFICIENT OPERATING POINT OF A PLATFORM - A method and system for determining an energy-efficient operating point of the platform or system. The platform has logic to dynamically manage setting(s) of the processing cores and/or platform components in the platform to achieve maximum system energy efficiency. By using the characteristics of the workload and/or platform to determine the optimum settings of the platform, the logic of the platform facilitates performance guarantees of the platform while minimizing the energy consumption of the processor core and/or platform. The logic of the platform identifies opportunities to run the processing cores at higher performance levels which decreases the execution time of the workload and transitions the platform to a low-power system idle state after the completion of the execution of the workload. Since the execution time of the workload is reduced, the platform spends more time in the low-power system idle state and therefore the overall system energy consumption is reduced.10-27-2011
20120089854SYSTEMS AND METHODS FOR OPTIMIZING DATA STORAGE AMONG A PLURALITY OF SOLID STATE MEMORY SUBSYSTEMS - A solid state storage device includes an interface system configured to communicate with an external host system over an aggregated multi-channel interface to receive data for storage by the solid state storage device. The solid state storage device also includes a storage processing system configured to communicate with the interface system to receive the data, process the data against storage allocation information to parallelize the data among a plurality of solid state memory subsystems, and transfer the parallelized data. The interface system is configured to receive the parallelized data, apportion the parallelized data among the plurality of solid state memory subsystems, and transfer the parallelized data for storage in the plurality of solid state memory subsystems, where each of the plurality of solid state memory subsystems is configured to receive the associated portion of the parallelized data and store the associated portion on a solid state storage medium.04-12-2012
20110276816POWER MANAGEMENT OF LOW POWER LINK STATES - A method and apparatus for intelligent power management for low power link states. Some embodiments include methods, apparatuses, and systems for a device coupled to a controller via a link; a link power management engine to alter a power state of the link based on a transaction and some knowledge of future transactions between the device and the controller; and a memory or logic to store the link power management engine. In some embodiments, the memory stores information about at least one of the following: the power state of the link, the device buffering, the controller or device state or a history of transactions. In some embodiments, the device is a peripheral of a computer system. In some embodiments, the method may include transitioning the device to various link states. Other embodiments are described.11-10-2011
20120331323DEVICES AND METHODS FOR SAVING ENERGY THROUGH CONTROL OF SLEEP MODE - A system for saving energy through control of a sleep mode, and a method of operating the system are provided. The energy-saving system may enable a proxy device to maintain a minimum basic setup necessary for a communication when a host device enters a sleep mode, and may omit an operation performed based on the basic setup when the host device switches to a communication mode, thereby enabling a smooth switch between the sleep mode and the communication mode.12-27-2012
20120331320Wake-on-LAN Between Optical Link Partners - Embodiments described herein achieve Wake-on-LAN to allow optical modules the ability to wake up link partners instantaneously when there is data to be transmitted or received. As such, Wake-on-LAN features are provided for a side-band handshaking protocol and channel that is independent from the normal data traffic path.12-27-2012
20120331321Processor Core with Higher Performance Burst Operation with Lower Power Dissipation Sustained Workload Mode - A processor may operate at a first frequency level for a first time interval. The processor automatically may transition to a sleep state from the first frequency level after the first time interval. Then the processor automatically transitions from the sleep state to the first frequency level after a second time interval. As a result the processor may operate at a reduced power consumption and higher performance.12-27-2012
20120331322POWER-SUPPLY CONTROL SYSTEM, POWER-SUPPLY CONTROL METHOD, AND IMAGE FORMING APPARATUS - A power-supply control system includes a plurality of apparatuses connected to each other. Each apparatus includes a battery configured to supply power in a power saving mode where power consumption is lower than in a normal mode; a detecting unit configured to detect an output voltage of the battery; a transmitting unit configured to transmit a power supply request when the output voltage is determined to be lower than a predetermined value; a receiving unit configured to receive a request from another apparatus; a determining unit configured to determine whether the battery is available for the another apparatus in response to the request; and a control unit configured to control power supply from the battery. The control unit transmits a notification of power supply start to the another apparatus and causes the battery to supply power to the another apparatus when the battery is available for the another apparatus.12-27-2012
20110320844DYNAMIC CONTROL OF REDUCED VOLTAGE STATE OF GRAPHICS CONTROLLER COMPONENT OF MEMORY CONTROLLER - A method includes detecting a trigger condition, and in response to detecting the trigger condition, reducing a voltage applied to a graphics controller component of a memory controller. The reduction in voltage may cause the voltage to be reduced below a voltage level required to maintain context information in the graphics controller component.12-29-2011
20110320843SEMICONDUCTOR DEVICES AND SYSTEMS-ON-CHIP HAVING THE SAME - A semiconductor device includes a power gating unit, a combinational logic unit and a clamping unit. The power gating unit is turned on to output an internal signal at an output electrode based on an input signal or turned off according to operation modes. The combinational logic unit includes an input electrode directly connected to the output electrode of the power gating unit through a data line, and generates an output signal based on the internal signal received through the data line. The clamping unit is turned on to clamp the internal signal at a logic high level or at a logic low level or turned off according to the operation modes. The semiconductor device clamps the output electrode of the power gating unit without degrading an operation speed of the semiconductor device.12-29-2011
20110320842POWER SUPPLY CONTROL DEVICE, IMAGE PROCESSING DEVICE, POWER SUPPLY CONTROL METHOD, AND COMPUTER READABLE MEDIUM - A power supply control device including a mode switching controller, a first power supply section, a second power supply section, a third power supply section, a wiring system opening and closing unit and a controller. During the sleep mode, the first power supply section continues to supply power to a specific control system, the second power supply section shuts off its supply of power, and the third power supply section supplies power to the specific control system by a separate system to the specific control system. The wiring system opening/closing unit sets a power supply wiring system of the commercial power source to an open state or a closed state. When the third power supply section is supplying power during the sleep mode, the controller controls the wiring system opening and closing unit and sets the power supply wiring system of the commercial power supply to the open state.12-29-2011
20110320841Method for power management of data buses in electronic devices - Provided are systems and methods for execution by a core of a peripheral component to provide power management for a data bus in a electronic device, suhc as a mobile electronic device. One method comprises determining whether a device in the peripheral component is inactive, transmitting a request for deactivation of at least one data channel to the device, receiving a command to deactivate the at least one data channel, determining whether any remaining devices in the peripheral component are active, and placing the peripheral component in a first low power mode wherein the core remains active in order to monitor a data bus clock.12-29-2011
20110320840Transparently Increasing Power Savings in a Power Management Environment - A mechanism is provided for transparently consolidating resources of logical partitions. Responsive to the existence of the non-folded resource on an originating resource chip, the virtualization mechanism determines whether there is a destination resource chip to either exchange operations of the non-folded resource with a folded resource on the destination chip or migrate operations of the non-folded resource to a non-folded resource on the destination chip. Responsive to the existence of the folded resource on the destination resource chip, the virtualization mechanism transparently exchanges the operations of the non-folded resource from the originating resource chip to the folded resource on the destination resource chip, where the folded resource remains folded on the originating resource chip after the exchange. Responsive to the absence of another non-folded resource on the originating resource chip, the vitalization mechanism places the originating resource chip into a deeper power saving mode.12-29-2011
20120102349SYSTEM AND METHOD FOR CONTROLLING PROCESSOR LOW POWER STATES - A next idle state for a processor in a system may be determined based on a previous idle period and a previous idle state. The next idle state for the processor may also be determined based on times when interrupts are generated by devices in the system.04-26-2012
20120102348FINE GRAINED POWER MANAGEMENT IN VIRTUALIZED MOBILE PLATFORMS - A system and method of managing power may include determining a power state based on a first power management request from a first operating system executing on a mobile platform and a second power management request from a second operating system executing on the mobile platform. The first operating system and one or more components of the mobile platform can define a first virtual machine, and the second operating system and one or more components of the mobile platform can define a second virtual machine. In addition, the power state may be applied to the mobile platform.04-26-2012
20120102347Process State of a Computing Machine - A computing machine to power a memory to retain a process state of the computing machine if the computing machine is in a sleep state and transfer the process state from the memory to a non-volatile storage device, where the computing machine remains in the sleep state as the process state is transferred from the memory to the non-volatile storage device.04-26-2012
20100199115PORTABLE ELECTRONIC DEVICE AND POWER CONTROL METHOD THEREOF - A power control method for a portable electronic device. The portable electronic device comprises a power supply unit and a volatile memory for storing data when the power supply unit supplies power thereto. First, the portable electronic device is set to enter a deep sleep mode. Then, data accessed from the volatile memory is transferred to a non-volatile memory. Finally, except for maintaining sufficient power to restore the device, the power supply unit is turned off.08-05-2010
20130013948Method and Apparatus For A Power-Efficient Framework to Maintain Data Synchronization of a Mobile Personal Computer to Simulate A Connected Scenario - An apparatus and method for a power-efficient framework to maintain data synchronization of a mobile personal computer (MPC) are described. In one embodiment, the method includes the detection of a data synchronization wakeup event while the MPC is operating according to a sleep state. Subsequent to wakeup event, at least one system resource is disabled to provide a minimum number of system resources required to re-establish a network connection. In one embodiment, user data from a network server is synchronized on the MPC without user intervention; the mobile platform system resumes operation according to the sleep state. In one embodiment, a wakeup alarm is programmed according to a user history profile regarding received e-mails. In a further embodiment, data synchronizing involves disabling a display, and throttling the system processor to operate at a reduced frequency. Other embodiments are described and claimed.01-10-2013
20130013946IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - An image forming apparatus executes the steps of: calculating an end time of the job of which execution is instructed, and determining if the end time of the job is before the start time of power outage; specifying, if it is determined that the end time of the job is not before the start time of power outage, a part of processing of the job that can be completed before the start time of power outage; starting the job, if it is determined that the end time of the job is before the start time of power outage; and starting the part of processing of the job if it is determined that the end time of the job is not before the start time of power outage. Thus, abnormal termination of an active job due to power outage can be prevented.01-10-2013
20120151235METHODS AND SYSTEMS FOR ENERGY EFFICIENCY AND ENERGY CONSERVATION INCLUDING ENTRY AND EXIT LATENCY REDUCTION FOR LOW POWER STATES - Systems and methods for entry and exit latency reduction for low power states are described. In one embodiment, a computer implemented method initiates an energy-efficient low power state (e.g., deep sleep state) to reduce power consumption of a device. The method sets a power supply voltage that provides sufficient power to a dual power supply array for retention of states. Logic is powered down in this low power state.06-14-2012
20130019116COMMUNICATION TERMINAL APPARATUSAANM OCHI; KengoAACI TokyoAACO JPAAGP OCHI; Kengo Tokyo JP - A communication apparatus includes: an email-information acquisition unit configured to acquire information on an email, received by a mail server, from the mail server in a power-saving mode; a judgment unit configured to judge whether there is an email that needs processing in a normal active mode on the basis of the information acquired by the email-information acquisition unit; a power-saving mode cancelling unit configured to carry out the transition from the power-saving mode to the active mode when the judgment unit judges that the mail server has an email that needs processing in the active mode; and an email acquisition unit configured to acquire an email, received by the mail server, from the mail server in the active mode.01-17-2013
20130019115IMAGE FORMING APPARATUS AND CONTROL METHODAANM NISHIMURA; MichiakiAACI OsakaAACO JPAAGP NISHIMURA; Michiaki Osaka JP - Provided is an image forming apparatus including a plurality of processing sections each performing a different process, a switching section for switching the status of the apparatus from a normal status to a power-saving status which requires power consumption smaller than that in the normal status when none of the plurality of processing sections performs processing for a predetermined period of time, a return section for making the status of the apparatus return from the power-saving status to the normal status under a predetermined condition, a pre-energizing section for energizing each of the processing sections in advance when the status of the apparatus is returned to the normal status, a specifying section for specifying a process to be executed, and a stop section for selectively stopping pre-energization of each of the processing sections based on the process specified by the specifying section.01-17-2013
20110161709METHOD AND SYSTEM FOR POWER SAVING MANAGEMENT - The present invention discloses a method and a system for power saving management. The method includes: a new power consuming state attribute added for existing device object of the communication network management system is configured, wherein the power consuming state attribute is used for indicating the power consuming state of the electrical energy; performing the power saving management on the device by setting the power consuming state of the object corresponding to the device. With the above technical solution, the division of the state information could be clearer and more efficient, meanwhile, the redundancy can be eliminated, in addition, has the feather of wide adaptability.06-30-2011
20110161707POWER MANAGEMENT OF COMPUTERS - A method of controlling power consumption in a computer by detecting whether or not there is any user activity, and also the identity of each process running on the computer. The identity of each process running on the computer is compared with a set of identities of previously identified processes, these having been deemed to be processes for which it is desirable that the computer maintains a high power state. The computer adopts a low power state if all the detected identities of processes are not in the set of high power state processes or no user activity is detected. The low power state is a state in which the computer is able to service requests. The computer freely adopts any available higher power state if user activity is detected or a detected process is in the set of high power state processes. The power state selected may depend on workload.06-30-2011
20110161706COMPUTER SYSTEM WITH OVERCLOCKING FUNCTION AND METHOD - An overclocking method applied to a computer system includes the following steps: setting a first operating voltage and a first clock rate; generating a first control signal to a power supply and generating a second control signal to a clock generator according to the first operating voltage and the first clock rate, respectively; controlling the computer system into a sleep mode; resuming the computer system from the sleep mode after a predetermined time; restarting the power supply and the clock generator, and generating the first operating voltage by the power supply according to the first control signal and, generating the first clock rate by the clock generator according to the second control signal; and setting a parameter of a memory controller in a north bridge chip of the computer system via the first clock rate and the first operating voltage.06-30-2011
20110161705MULTIPLE-QUEUE MULTIPLE-RESOURCE ENTRY SLEEP AND WAKEUP FOR POWER SAVINGS AND BANDWIDTH CONSERVATION IN A RETRY BASED PIPELINE - Methods and apparatus relating to multiple-queue multiple-resource entry sleep and wakeup for power savings and bandwidth conservation in a retry based pipeline are described. In one embodiment, a bit indicates whether a corresponding queue entry is asleep or awake with respect to arbitration for resources in a retry based pipeline. Furthermore, multiple entries from different queues may be grouped together and multiple resources may be grouped together. Other embodiments are also disclosed.06-30-2011
20110161704DATA PROCESSING APPARATUS, CONTROL METHOD, AND STORAGE MEDIUM - A data processing apparatus includes a storage unit and operates in a first power mode in which power that the storage unit can operate is supplied to the storage unit or in a second power mode in which power that the storage unit can operate is not supplied to the storage unit. The data processing apparatus includes an input unit configured to input data, a storing unit configured to store the data in the storage unit, a setting unit configured to set waiting time for making the data processing apparatus wait to shift from the first power mode to the second power mode according to a storage destination if the data is stored in the storage unit, and a control unit configured to shift the data processing apparatus from the first power mode to the second power mode when the waiting time elapses after the data is stored in the storage unit.06-30-2011
20130024710SYSTEM AND METHOD FOR MANAGING ENERGY CONSUMPTION IN A COMPUTE ENVIRONMENT - A system and method for reducing power consumption in clusters, grids, on-demand centers, etc. These principles 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 implement policies, make dynamic changes, make predictions or actions, etc., to reduce the direct or indirect power consumption associated with a compute environment. Methods can include analysis of current workload and/or future workload in taking energy saving actions, and also involve reporting state information and updating algorithms based on historical experience or outside sources of information.01-24-2013
20130024711HOST APPARATUS AND INFORMATION PROCESSING SYSTEM USING THE SAME - In an information processing system, a host apparatus and a device are communicatively connected such that the host apparatus serves as a master and the device serves as a slave. The device is configured to establish a power-saving mode, when any command is not received from the host apparatus for a prescribed time period. A device driver is provided in the host apparatus. The device driver is configured to transit from a normal state to a suspended state when an operation command for operating the device is not received from an application running in the host apparatus for a prescribed time period, and to transmit a dummy response to the application, when an inquiry command is received from the application while the device driver is placed in the suspended state, without notifying the inquiry command to the device.01-24-2013
20130024708POWER CAPPING USING C-STATES - An example system includes a power capping controller to assert an output based on exceeding a power threshold for a computer system. A central processing unit (CPU) core is provided to enter a low-power C-state based on the output being asserted via a control path that bypasses an operating system command.01-24-2013
20130024709DISPLAY DEVICE, HOST DEVICE, DISPLAY SYSTEM, METHODS OF CONTROLLING THE DISPLAY DEVICE, THE HOST DEVICE, AND THE DISPLAY SYSTEM - A display device is provided that includes a display unit; a communication interface unit which communicates with the host device; a signal generation unit which generates a power save mode switching signal for switching the host device to a power save mode; and a control unit which controls the power save mode switching signal to be generated by the signal generation unit and transmitted to the host device in response to an input source currently being output from the host device to the display unit being switched from being output from the host device to being output from another device to the display device.01-24-2013
20130173942FAST PLATFORM HIBERNATION AND RESUMPTION OF COMPUTING SYSTEMS - Secure fast platform hibernation and resumption for computing systems. An embodiment of an apparatus includes a processor to operate according to an operating system, the processor to transition the apparatus to a first reduced power state in response to a request, the transition to the first reduced power state including the processor to store context data for the apparatus in a volatile system memory, and logic to transition the apparatus to a second reduced power state, the logic to write the context data from the volatile system memory to a nonvolatile memory for the transition to the second reduced power state, wherein the logic is to implement one or more security measures for the writing of the context data into the nonvolatile memory.07-04-2013
20130173943IMAGE FORMING APPARATUS, SYSTEM ON CHIP UNIT AND DRIVING METHOD THEREOF - An image forming apparatus connected to a host apparatus includes a first memory; a second memory; a USB interface to receive a USB control signal or a USB data signal from the host apparatus; a first CPU to perform an operation using the first memory in a normal mode and being deactivated if the normal mode is converted into a power saving mode; and a second CPU to perform an operation using the second memory in the power saving mode. In the image forming apparatus, if the USB data signal is input in the power saving mode, the second CPU activates the first CPU to convert the power saving mode into the normal mode, and if the USB control signal is input in the power saving mode, the second CPU retains the power saving mode and performs an operation corresponding to the USB control signal using the second memory.07-04-2013
20080256374Sharing Non-Sharable Devices Between an Embedded Controller and A Processor in a Computer System - System and method for sharing a device, e.g., non-volatile memory, between a host processor and a microcontroller. In response to system state change to a first state wherein the microcontroller is assured safe access to the non-volatile memory (e.g., in response to power-on reset, system reset, sleep state, etc.), the microcontroller holds the system in the first state (e.g., system reset), and switches access to the non-volatile memory from the processor to the microcontroller. While the system is held in the first state, the microcontroller accesses the device (e.g., non-volatile memory), e.g., fetches program instructions/data from the non-volatile memory and loads the program instructions/data into a memory of the microcontroller. After the access, the microcontroller changes or allows change of the system state, e.g., switches access to the device, e.g., the non-volatile memory, from the microcontroller to the processor, and releases the system from the first state.10-16-2008
20090150696Transitioning a processor package to a low power state - In one embodiment, a processor package is controlled to be in a package low power state for a first portion of an operation interval and in a package active state for a second portion of the operation interval. To enable the low power state, operations scheduled during the first portion are delayed until the second portion. Other embodiments are described and claimed.06-11-2009
20110246801POWER MANAGEMENT OF ELECTRONIC DEVICE WITH DISPLAY - An electronic device, such as an e-book, for displaying information includes a power source; a display having a high power mode and a low power mode, said display being powered by said power source; and a power control arrangement for switching the display to a low power mode when no changes to selected regions of the display are required for at least a predetermined time. The power control arrangement switches said display from said low power mode to said high power mode when changes of said display are required in display portions other than said selected portions. A method for operating the electronic device. A computer readable medium having computer readable instructions thereon for implementing the method.10-06-2011
20110246802INFORMATION PROCESSOR - According to one embodiment, an information processor, which is capable of supplying power to an external device, includes a connector, a storage module, and a power supply control module. The connector connects the external device to the information processor. The storage module stores a plurality of power supply modes each defining conditions of respective modules of the information processor to make the external device connected to the connector chargeable. The power supply control module selects a power supply mode effective for the external device from the power supply modes when the external device is connected to the connector, and sets the respective modules of the information processor according to the conditions corresponding to the power supply mode selected.10-06-2011
20110264936Power supply management controller integrated circuit, power management circuit for electrically powered systems, and method of managing power to such systems - The present invention provides a power supply management controller integrated circuit for managing power supply to one or more system units of a system, said integrated circuit comprising power supply means for powering said system units, a power supply control unit for controlling said powering of said system units, a wake-up timer unit, and means for acknowledging an active or passive state of said system, wherein said power supply control unit is arranged for cooperating with said means for acknowledging said state of said system for enabling said power supply control unit to cease powering of said system units for de-activation of said system during said passive state of said system, and for enabling said power supply control unit to maintain powering of said system units during an active state of said system, and wherein said power supply control unit is ranged for cooperating with said wake-up timer unit for periodically powering said system units during said passive state of said system for enabling activation of said system.10-27-2011
20080222437Low 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.09-11-2008
20130179714BACKUP POWER SUPPLY CIRCUIT AND METHOD - A backup power supply circuit includes a backup power supply unit, a delay unit, and a power supply chip. The backup power supply unit is connected to a computer system. The backup power supply unit supplies power to the computer system when a cutoff of an external power source of the computer system occurs. The power supply chip sets the computer system into an idle state when the cutoff of the external power of the computer system occurs. The delay unit sets a delay time. The delay unit countdowns the delay time at a beginning of the cutoff of the external power of the computer system, and controls the power supply chip to revive the computer system when the countdown is completed.07-11-2013
20130179715SYSTEMS AND METHODS FOR REDUCING ENERGY CONSUMPTION IN SENSOR NETWORKS - A system includes a volatile memory and state information management logic. The volatile memory includes a plurality of volatile storage locations. The state information management logic includes memory write tracking circuitry coupled to the volatile memory. The memory write tracking circuitry is configured to identify locations of the memory written subsequent to restoration of state information to the volatile memory on exit of a low-power mode of operation, and to store indicia of the identified locations.07-11-2013
20130179716Dynamically Adjusting Power Of Non-Core Processor Circuitry - In one embodiment, the present invention includes a multicore processor having a variable frequency domain including a plurality of cores and at least a portion of non-core circuitry of the processor. This non-core portion can include a cache memory, a cache controller, and an interconnect structure. In addition to this variable frequency domain, the processor can further have a fixed frequency domain including a power control unit (PCU). This unit may be configured to cause a frequency change to the variable frequency domain without draining the non-core portion of pending transactions. Other embodiments are described and claimed.07-11-2013
20120254644ACTIVITY ALIGNMENT ALGORITHM BY MASKING TRAFFIC FLOWS - Embodiments of methods and apparatus for entering an activity alignment on state from an activity alignment off state; masking one or more traffic flows that are received during at least a part of the activity alignment on state; and entering the activity alignment off state from the activity alignment on state, after being in the activity alignment on state for at least a first time period, based at least in part on said masking the one or more traffic flows. Additional variants and embodiments are also disclosed.10-04-2012
20110271132METHOD AND DEVICE FOR CONTROLLING THE AWAKING OF FACILITIES BELONGING TO AT LEAST ONE MULTIPLEXED NETWORK, BY COUNTING UNTIMELY WAKE-UPS - A device (D) is dedicated to the control of the waking of facilities (OE11-03-2011
20110271131COMPUTER SYSTEM POWERED-OFF STATE AUXILIARY POWER RAIL CONTROL - Computer system powered-off state auxiliary power rail control. At least some of the illustrative embodiments are systems configured to have: a first powered-off state in which the main output power signal is deactivated within the power supply and the auxiliary power output signal is active and coupled to an auxiliary power rail of the printed circuit board; and a second powered-off state in which the main power output signal is deactivated and the auxiliary power output signal is active and decoupled from the auxiliary power rail of the printed circuit board.11-03-2011
20110271129NETWORK-ATTACHED DISPLAY DEVICE AS AN ATTENDEE IN AN ONLINE COLLABORATIVE COMPUTING SESSION - In one embodiment, a network-attached display device (e.g., projector) may join an online collaborative computing session as an attendee. The display device may then receive data for the online collaborative computing session as an attendee over the computer network. As such, the display device may render images associated with being an attendee of the online collaborative computing session from the received data, and then visually display the images associated with the online collaborative computing session.11-03-2011
20130091370Controlling Power States of a Peripheral Device in Response to User Proximity - In a method of controlling the power state of a peripheral device, the peripheral is changed from a first power state to a second power state in response to communications across a network connected to the peripheral indicating that a user is proximately located to the peripheral. A user may be determined to be proximately located to the peripheral by monitoring communications across the network to detect traffic that is associated with a user logging onto a computer that can utilize the peripheral, by discovering a wireless terminal that is associated with a user and which is proximately located to the peripheral, by receiving information from a cellular communication network across the network that indicates that a user of the peripheral is proximately located to the peripheral, and/or in response to a time of day and/or day of week/month schedule.04-11-2013
20130091369POWER-SAVING INPUT DEVICE AND POWER-SAVING METHOD FOR SUCH INPUT DEVICE - A power-saving method for an input device is provided. The power-saving method includes steps of: counting an idle time of the input device, judging whether an ambient luminance value in an environment of the input device is detected or not according to the idle time of the input device, and allowing the input device to enter a first shallow sleep mode or a deep sleep mode by judging whether the ambient luminance value is higher than or lower than a predetermined luminance value.04-11-2013
20130132754REDUCING POWER CONSUMPTION BY MASKING A PROCESS FROM A PROCESSOR PERFORMANCE MANAGEMENT SYSTEM - Energy savings can be obtained by masking a computationally-intensive task from a processor performance management system which selects the processor performance state based on the load on the processor (CPU). By preventing the PPM system from reacting to the computational load the application places on the processor, the time to complete execution of the application increases but the energy used by the application may be greatly reduced and thermal stress on the CPU is also reduced (preventing noisy fans from operating). This approach makes it convenient to run a computationally intensive task as a background task. The masking can be achieved by running the task in tiny bursts, with micro-sleeps in between them, so that the average CPU load is low over a time period that the PPM system uses for measuring CPU activity/load.05-23-2013
20130097448System and Method for High-Performance, Low-Power Data Center Interconnect Fabric - A system and method are provided that support a routing using a tree-like or graph topology that supports multiple links per node, where each link is designated as an Up, Down, or Lateral link, or both, within the topology. The system may use a segmented MAC architecture which may have a method of re-purposing MAC IP addresses for inside MACs and outside MACs, and leveraging what would normally be the physical signaling for the MAC to feed into the switch.04-18-2013
20130097447METHOD AND APPARATUS FOR CONTROLLING SLEEP MODE IN A PORTABLE TERMINAL - A method of controlling a sleep mode of a portable terminal is provided. The method includes setting a sleep mode timer according to a default setting; displaying, upon reaching a predetermined time point before expiration of the sleep mode timer, a notice screen including the sleep mode timer and a timer setting area for re-setting the sleep mode timer according to a temporary setting; and entering, when a sleep mode timer temporary resetting command is received while the notice screen is displayed, a screen maintaining mode in which the sleep mode timer is temporarily re-set from the default setting to a temporary setting according to the sleep mode timer temporary resetting command.04-18-2013
20130097446METHOD OF CONTROL OF AN ACCESS POINT OF A HOME GATEWAY OF A HOME NETWORK - A method of controlling a domestic gateway, intended to connect at least one domestic terminal of a domestic computer network to a telecommunication network. The domestic gateway includes an access point configured so as to establish a connection between the domestic terminal and the domestic gateway. Method includes: a step of verifying the state of the connection between the domestic gateway and the domestic terminal via the access point, and a step of cyclically placing the access point on standby if the connection is inactive, in which the access point is alternately enabled for a duration of activity and disabled for a duration of sleep.04-18-2013
20130097445Method and Apparatus for Power Management Control of an Embedded Memory Having Sleep and Shutdown Features - A power management controller controls a power mode associated with a memory device and includes a logic element operative to provide a power mode control signal. The logic element is responsive to first and second control signals, the second control signal being a delayed version of the first control signal. The first control signal is provided by a processing device, and the power mode control signal transitions (i) inactive before a chip select signal transitions active and/or (ii) active after the chip select signal transitions inactive. The chip select signal controls the memory device, and the power mode control signal controls the power mode associated with the memory device. A corresponding method, computer-readable medium, and electronic system are also disclosed. A method that selects a power control mode associated with the power management controller, which controls a power mode associated with the memory device, is also disclosed.04-18-2013
20130097444USING LATCHED EVENTS TO MANAGE SLEEP/WAKE SEQUENCES ON COMPUTER SYSTEMS - The disclosed embodiments provide a system that performs power management on a computer system. The system includes an embedded controller and an operating system. During the execution of a sleep sequence by the operating system, the embedded controller latches events associated with use of the computer system. After the sleep sequence has completed, the embedded controller compares the latched events with a set of enabled wake events for the computer system and a current state of the computer system. If the latched events indicate that the current state corresponds to one of the enabled wake events, the embedded controller triggers a wake sequence on the computer system.04-18-2013
20130103964Device and method for the reliable detection of wakeup events in the shutdown phase of a control unit - A wakeup logic element for providing reliable detection of wakeup events in the shutdown phase of a control unit for a vehicle, having a wakeup source input, the wakeup source input being implemented as a flank-sensitive wakeup input, and an on/off state of a vehicle control unit being controllable by the wakeup source input, wherein a wakeup signal which arrives at the wakeup source input during a shutdown procedure of the control unit is able to be delayed or temporarily suppressed, such that the wakeup signal is applied at the wakeup source input after the control unit has been shut down.04-25-2013
20130103962SLEEP STATE SYNCHRONIZATION METHOD BETWEEN DOCKED TERMINALS AND DOCKING SYSTEM USING THE SAME - A sleep state synchronization method between docked terminals and docking system using the same is disclosed. The state synchronization method between docked terminals includes determining whether or not a first terminal is docked on a second terminal, turning off signal transmitted to a TMDS data line when it is determined that the first terminal is not docked on the second terminal, and the entering by the second terminal into sleep mode. Accordingly, the docked terminals are able to enter into sleep mode together, enabling interlocked operations of the docked terminals instead of operating independently, which would prevent confusion to users when using the docked terminals. In addition, by the aforementioned method, it is unnecessary to make settings for each docked terminal separately, and it is possible to enter into sleep mode easily using TMDS signal of a HDMI interface without going through complex algorithms.04-25-2013
20130124895MICROPROCESSOR BASED POWER MANAGEMENT SYSTEM ARCHITECTURE - An electronic system is disposed on a single integrated circuit including a plurality of power domains and a power control manager. Each power domain may be independently powered. The power control manager includes a set of control registers storing individual control bits, a power switch for each power domain and a programmable microprocessor. The programmable microprocessor controls the digital state of individual bits within the control registers thereby controlling the ON and OFF state of the corresponding power domain.05-16-2013
20130124896LOW-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.05-16-2013
20130124894APPARATUS AND METHOD FOR SAVING POWER IN PORTABLE TERMINAL - A portable terminal for providing a Wi-Fi Peer-to-Peer (P2P) function is provided. An apparatus and a method of a portable terminal for enhancing a data transmission performance by adjusting a Notice of Absence (NoA) duration in a NoA-based power saving mode are provided. The apparatus includes a communication unit for receiving Notice of Absence (NoA) information for a power saving mode, a control unit for controlling a client of a group to enter the power saving mode based on the NoA information, and a power management unit for generating the NoA information for the power saving mode.05-16-2013
20130124893IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes a network control unit, a main control unit, a clock circuit unit, a sub control unit, and a power mode switching unit. The main control unit transmits transition information to the sub control unit during a transition to a first power saving mode when power supply to the main control unit is stopped. The clock circuit unit transmits a transition instruction to the sub control unit at a specified time. When detecting the transition instruction during the first power saving mode, the sub control unit selectively controls the power mode switching unit to switch a power mode based on the transition information between transition from the first power saving mode to the normal mode and transition from the first power saving mode to the second power saving mode when power supply to the main control unit and the network control unit is stopped.05-16-2013
20130132752POWER SUPPLIER OF COMPUTER SYSTEM AND POWER SUPPLY METHOD THEREOF - A power supplier of a computer system and a power supply method thereof are described. The power supply method includes the following steps, receiving a validation code when a computer system enters a working mode from a standby mode; determining whether the validation code is in accordance with a preset code; If the validation code is in accordance with the preset code, executing a power sequence control so that the power supplier generates a plurality of working voltages required by the computer system; and if the validation code is not in accordance with the preset code, powering off the computer system or keeping the computer system in the standby mode.05-23-2013
20130132751ELECTRONIC DISPLAY DEVICE AND POWER SAVING METHOD - An electronic display device detects whether a user is in front of a display via a camera according to a first frequency in a working mode of the electronic display device. If the electronic display device detects that the user is not in front of the display for a first predefined time period, the electronic display device enters a power saving mode by turning off the display. The electronic display device detects whether the user is in front of the display again via the camera according to a second frequency in the power saving mode. The electronic display device reduces the second frequency after the user is not in front of the display for a second predefined time period. The electronic display device enters the working mode by turning on the display when detecting that the user is in front of the display again.05-23-2013
20130145191UNIVERSAL SERIAL BUS DEVICE AND METHOD FOR POWER MANAGEMENT - The present invention discloses a Universal Serial Bus (“USB”) device with a power saving mechanism. The USB device includes an Ethernet physical layer, a USB physical layer, a wakeup packet detection circuit configured to receive a wakeup packet from the Ethernet physical layer, and a standby power saving control circuit. The standby power saving control circuits selects a connection speed from the group including EEE, 10 Mbps, 100 Mbps, 1 Gbps and 10 Gbps, wherein the standby power saving control circuit is able to connect to a wakeup device at the selected connection speed, so that the USB system can enter an optimal power saving status while in a standby mode. The connection speeds are defined in the specification of IEEE 802.3az as 10BASE-T, 100BASE-TX, 1000BASE-T, 10GBASE-T, 1000BASE-KX, 10GBASE-KX4, 10GBASE-KR.06-06-2013
20130145193DATA PROCESSING DEVICE AND DATA PROCESSING SYSTEM - A data processing device includes: a first power-on reset circuit; a second power-on reset circuit with higher power consumption and higher reset voltage accuracy than the first power-on reset circuit; a storage unit storing information for determining whether to keep the second power-on reset circuit in an active state or an inactive state; and a central processing unit initialized in response to respective outputs of the first and second power-on reset circuits and setting the information in the storage unit.06-06-2013
20130145194METHODS FOR OPERATING AN APPARATUS HAVING MULTIPLE STAND-BY MODES - A method for operating an apparatus, such as a video signal receiver, having first and second stand-by modes when the apparatus is in an off state, wherein the first stand-by mode provides a different start-up time and consumes a different amount of power than the second stand-by mode, is capable of saving power without requiring a user to wait a long time for a start-up sequence. According to an exemplary embodiment, the method includes enabling display of a user interface allowing user selections for a plurality of different time periods of a day; and enabling a user to select, via the user interface, one of at least three different options for each one of the different time periods, wherein a first one of the options includes setting the apparatus to the first stand-by mode for the time period, a second one of the options includes setting the apparatus to the second stand-by mode for the time period, and a third one of the options includes setting the apparatus to a statistical mode for the time period, wherein the statistical mode includes setting the apparatus to one of the first and second stand-by modes for the time period based on a user's past viewing habits during the time period.06-06-2013
20100281283PRIMARY SIDE CONTROL CIRCUIT AND METHOD FOR ULTRA-LOW IDLE POWER OPERATION - A method and circuit for reducing power consumption during idle mode to ultra-low levels, such as about 1/1011-04-2010
20100281282LOOK-AHEAD PROCESSOR FOR SIGNALING SUITABLE PERFORMANCE STATE FOR MAIN PROCESSOR - A look-ahead processor identifies instructions that are at least likely to be executed by a main processor. The look-ahead processor determines a power state for the main processor that is suitable for executing the instructions. The look-ahead processor signals the main processor to enter the suitable performance state.11-04-2010
20100281281Server with Multiple Power Supplies - One exemplary embodiment is a server that includes multiple power supplies. When the server is in a standby state, one power supply is in a standby state and another power supply is in a deep sleep state.11-04-2010
20110219250IMAGE FORMING DEVICE WHICH PERFORMS POWER SAVING CONTROL UPON AUTHENTICATION PRINTING - An image forming device can operate in a print mode, a first power saving mode, and a second power saving mode. In the print mode, a first circuit having a unit to acquire the state of the image forming device and a second circuit are both activated. In the first power saving mode, neither the first circuit nor the second circuit is activated. In the second power saving mode, only the first circuit is activated. When a secure print instruction is received in the first power saving mode, the operation mode is switched to the second power saving mode. When the identity of the user is authenticated in the second power saving mode, the operation mode is switched to the print mode. Accordingly, it is possible to provide the image forming device which can restrict power consumption and also reduce the time required for printing out after the identity authentication.09-08-2011
20080201592Hibernating a processing apparatus for processing secure data - A data processing apparatus for processing secure data is disclosed. The data processing apparatus comprising: processing circuitry comprising a plurality of state retention cells in the form of scan chains for holding a current state of said processing circuitry, at least some of the state retention cells being arranged in series; encryption circuitry; and a hibernate signal input; said data processing apparatus being responsive to receipt of a hibernate signal at said hibernate signal input to switch from an operational mode in which said data processing apparatus is powered up, to a low power mode in which at least said processing circuitry is powered down, said data processing apparatus being operable prior to powering down said processing circuitry, to output a state of said processing circuitry from said plurality of state retention cells and to encrypt said output state using said encryption circuitry and to save said encrypted state to said storage device.08-21-2008
20080201591Method and apparatus for dynamic voltage and frequency scaling - A machine learning technique is used to improve dynamic prediction of processor utilization for multi-threaded user-level applications in a dynamic run-time environment based on processor utilization history. Processor supply voltage and processor clock frequency may be dynamically scaled based on the predicted processor utilization in order to reduce processor power consumption.08-21-2008
20110225440COMMUNICATION METHOD OF A TERMINAL AND AN ACCESS POINT FOR POWER SAVING - Provided is a communication technology of an access point and a terminal that may decrease power consumption by changing an operation state of the terminal from an awake state to a sleep state when a data stream to be transmitted to the terminal is absent or has completed in a transmission opportunity (TXOP) duration.09-15-2011
20110239022COMMUNICATION APPARATUS AND METHOD OF CONTROLLING THE SAME - There is provided a communication apparatus including an HDMI connector complying with HEC (HDMI Ethernet Channel)-compliant HDMI standards, comprising: an HEC communication unit configured to communicate, via HEC, with an HEC-compliant communication apparatus connected to the HDMI connector; a determination unit configured to determine, using a protocol of the HDMI standards, whether or not an HEC-compliant communication apparatus is connected to the HDMI connector; and a control unit configured to stop power supply to the HEC communication unit if it is determined that an HEC-compliant communication apparatus is not connected to the HDMI connector.09-29-2011
20110239020POWER MANAGEMENT BASED ON AUTOMATIC WORKLOAD DETECTION - An electronic device includes a kernel, a power manager to control power to a hardware component, and a neural network to monitor the kernel to recognize performance of a function of the electronic device. The neural network sends a signal to the power manager to reduce or turn off power to the hardware component based on information generated during monitoring of the kernel. The information may provide an indication of hit symbols for hardware components which are to be powered and/or hardware components which do not require power based on one or more operations performed by the kernel.09-29-2011
20130151881BRIDGING DEVICE AND POWER SAVING METHOD THEREOF - A bridging device and a power saving method thereof are disclosed. When a bridging chip of the bridging device receives a power saving command transferred from a host and thereby enters a power saving state, a voltage converter of the bridging device is disabled accordingly and a selection circuit selects to couple a bus voltage to the bridging chip to power the bridging chip. The bus voltage is transferred from the host through a power pin of a connector of the bridging device. The connector is coupled to the host.06-13-2013
20130151880IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREFOR AND STORAGE MEDIUM - When the first time has elapsed after the operator operates a power switch to stop power supply, an image processing apparatus forcibly stops power supply. When stopping power supply, the image processing apparatus executes hibernation processing to retract, in a secondary storage device, the stored content of a main memory used as a work area by a CPU. When the hibernation processing will be completed within a target time necessary to complete the hibernation processing and end processing of the image processing apparatus before the first time elapses, the image processing apparatus executes the end processing of the image processing apparatus and stops power supply after completing the hibernation processing; otherwise, the image processing apparatus interrupts the hibernation processing, executes the end processing of the image processing apparatus, and stops power supply.06-13-2013
20100306562CIRCUIT FOR FACILITATING COMPUTER SYSTEM WAKING UP FROM SLEEP STATE - A circuit for a computer system, includes a pulse width module (PWM) module and a control circuit. The PWM module is capable of converting a first voltage to a second voltage. The first voltage is capable of decreasing slower than the second voltage to have the PWM module entering in an unwanted state when the computer system is changed from a first state to a second state. The PWM module includes a disabling pin capable of locking the PWM module when a voltage of the disabling pin is low. The control circuit includes a control pin connected to the disabling pin, a ground pin connected to ground, and a monitoring pin capable of monitoring the computer system being changed from a first state to a second state to control the control pin and the ground pin to pull the disabling pin low to lock the PWM module to prevent the PWM module from entering in the unwanted state.12-02-2010
20100318826Changing Power States Of Data-Handling Devices To Meet Redundancy Criterion - A computer system provides for changing the power states of data-handling devices in response to a detection of a change in the redundancy associated with energy-transfer devices.12-16-2010
20100318825Power Conservation During A Power Mode Transition - An apparatus and associated method to begin performing a power reduction enablement sequence based on a first predetermined value of elapsed time after an execution of a data access command is completed. The power reduction enablement sequence is performed at an adaptively selected rate that is related to a second predetermined value of elapsed time after the execution that calls for a switch to a reduced power mode for the apparatus.12-16-2010
20120284551DEEP STANDBY METHOD AND DEVICE FOR EMBEDDED SYSTEM - A deep standby method and device for and embedded system is disclosed, wherein the method mainly includes: a selecting step for selecting an available data swap block from the data swap area of a non-volatile memory as a deep standby block; a writing step for writing the current system data and state of the CPU into the deep standby block, and writing a deep standby flag into the deep standby block; and a shutting down step for making the system off to fall into a deep standby.11-08-2012
20120284550IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING THE SAME - An image forming apparatus includes first and second memories, and a main controller and a sub-controller. The main controller performs a control operation using the first memory in a normal mode state, the sub-controller is mounted on an engine unit provided in the image forming apparatus to perform an image forming job by driving the engine unit in a normal mode state under the control of the main controller, the main controller transmits a low-power mode change request to the sub-controller if a condition for changing a mode state from the normal mode state to a low-power mode state is satisfied, and the sub-controller copies a low-power service program stored in the first memory into the second memory if the low-power mode change request is received, and performs a low-power service by executing the low-power service program through accessing of the second memory.11-08-2012
20120284549Logical Partition Defragmentation Within a Data Processing System - A mechanism, in a data processing system, is provided for logical partition defragmentation. The mechanism gathers resource requirements for a plurality of logical partitions running in a plurality of power domains within one or more servers. The mechanism determines optimal hardware utilization for the plurality of logical partitions. The mechanism migrates one or more of the plurality of logical partitions to run in a subset of the plurality of power domains such that at least one power domain within the plurality of power domains is unused. The mechanism puts the at least one unused power domain in a low power state.11-08-2012
20130159752LOW POWER PAGING OF CONSUMER ELECTRONICS - Systems, apparatuses, and methods are configured to monitor signals received via a transmission medium by a paging monitor to detect an activity trigger. Systems, apparatuses, and methods are further configured to, in response to detecting the activity trigger, cause, by the paging monitor, a main receiver to transition from an energy conservation mode to an active mode to monitor the transmission medium for data traffic.06-20-2013
20130159751INSTALLATION OR DEVICE WITH A HIGH-DEFINITION MULTIMEDIA INTERFACE - The Installation is equipped with a power supply unit and a High-Definition Multimedia Interface (HDMI), this installation being able to be connected to a second HDMI device with which it can communicate by using a protocol defined in the HDMI Standard, this installation or device being able to be set in Standby or Power-down mode and to be removed from this Standby or Power-down mode by said second HDMI device via a Consumer Electronic Control (CEC) line. The installation has a Power Management Unit (PMU) arranged on the primary side of said power supply unit, this PMU having its own power supply circuit directly connected to the power supply source of this installation or device and being arranged for switching OFF the electrical energy on the secondary side of said power supply unit when this installation or device enters said Standby or Power-down mode.06-20-2013
20130159750METHOD AND APPARATUS FOR TRANSITIONING A SYSTEM TO AN ACTIVE DISCONNECT STATE - A processor includes a processor core and a power management controller operable to receive a timer event, store the timer event, generate a hardware system sleep command to enter a hardware system sleep state, and restore the timer event upon exiting from the hardware system sleep state.06-20-2013
20130159749POWER CONSERVATION TECHNIQUES FOR USE IN DEVICES WITH SELECTABLE POWER MODES - Techniques are provided which may be implemented in various methods, apparatuses, and/or articles of manufacture for use in and/or with an electronic device that is operable in a plurality of selectable power modes, including at least a “higher power mode” and a “lower power mode”. In an example implementation, with an electronic device operating in a higher power mode may selectively transition to a lower power mode based, at least in part, on at least phase value obtained from a signal acquired from a ground-based transmitter. Further techniques are provided which may be implemented to allow electronic device to selectively transition from a lower power mode to one or more other selectable power modes, e.g., including various “medium power modes”, and various “higher power modes”.06-20-2013
20130185578SEMICONDUCTOR DEVICE AND CONTROL METHOD - A semiconductor device includes a detector that receives an input signal whose characteristics fluctuate depend on the standby mode state, compares the input signal amplitude with a specific threshold amplitude, and outputs a detector output signal that shows whether or not the amplitude of the applicable input signal is above the specified threshold amplitude; and an intermittent operation control circuit that along with receiving the detector output, also receives a first signal showing which mode among the multiple standby mode states is in, and sets the detector to the continuously on (enable) mode state when the input signal is above the specified threshold amplitude, and in all other cases intermittently operates the detector depend on the characteristics of the input signal in the mode shown by the first signal.07-18-2013
20130185579Microarchitecture Controller For Thin-Film Thermoelectric Cooling - A device having multiple cores executes an algorithm to control Thin-Film Thermoelectric Coolers (TFTEC) that employ the Peltier effect to remove heat from the various cores of the multi-core processor. The algorithms may combine Thread Migration (TM) and Dynamic Voltage/Frequency Scaling (DVFS) to provide Dynamic Thermal Management (DTM) and TFTEC control.07-18-2013
20110296218BATTERY MANAGEMENT SYSTEM, METHOD OF CONTROLLING THE SAME, AND ENERGY STORAGE SYSTEM INCLUDING THE BATTERY MANAGEMENT SYSTEM - A battery management system (BMS), a method of controlling the same, and an energy storage system including the battery management system. The BMS may reduce costs by stably supplying power to an insulating unit in a power-saving mode even when an isolator has no built-in direct current (DC)-DC converter.12-01-2011
20110314316COMPUTER SYSTEM AND CONTROL METHOD THEREOF - A computer system including at least one wake-up unit to sense whether a wake-up event occurs in a standby mode to decrease power consumption, a power supplying unit to supply power to the at least one wake-up unit, and a controlling unit to control a power supplying unit to the at least one wake-up unit in the standby mode according to predetermined setting corresponding to whether the at least one wake-up unit is operable.12-22-2011
20110314315Method 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 synchronizing the wakeup periods of threads associated with active advertisement components of a web page.12-22-2011
20110314314POWER GATING OF CORES BY AN SOC - A method for power gating a core by a SoC is provided. Instruction Pointer information, state of the core, core access information and wake up latency information of the core are used in power gating or un-gating of the core. A change in state of the core is detected by a device driver and is provided to a power management unit. As the state of the core changes from active to passive, the wake up latency information and the core access information of the core are retrieved by the SoC from a database to perform either the power gating or the un-gating of the core. The database is prepared by analyzing code blocks statically.12-22-2011
20110314313Green Mode Data Buffer Control - Embodiments provide improved modes of control of banked data buffer architectures. Embodiments provide modes of control of a central buffer pool (CBP) of a memory management unit (MMU). Embodiments are enabled by a cell free address pool (CFAP) module. The CFAP module may be implemented according to a banked structure. The CFAP module provides CBP/CFAP bank arbitration for selecting enqueue data cells. The CFAP module includes a green mode control module for controlling the power up/down of CBP banks according to expected data traffic through the MMU.12-22-2011
20110314312MANAGING MULTIPLE OPERATING POINTS FOR STABLE VIRTUAL FREQUENCIES - A system and method for managing multiple discrete operating points to create a stable virtual operating point. One or more functional blocks within a processor produces data corresponding to an activity level associated with the respective functional block. A power manager determines a power consumption value based on the data once every given sample interval. In addition, the power manager determines a signed accumulated difference over time between a thermal design power (TDP) and the power consumption value. The power manager selects a next power-performance state (P-state) based on comparisons of the signed accumulated difference and given thresholds. Transitioning between P-states in this manner while the workload does not significantly change causes the processor to operate at a virtual operating point between supported discrete operating points.12-22-2011
20130191669Method for Automatically Generating User Program Code for a Programmable Logic Controller for Controlling a Machine - A method for automatically generating user program code for a programmable logic controller configured to control a machine, includes providing, at a first earlier time, a plurality of selectable program code parts for the programmable logic controller; and automatically generating the user program code at, a second later time, by combining at least two of the plurality of selectable program code parts that have been selected by a user. At least one of the plurality of selectable program code parts is configured to activate at least one energy-saving function of an energy consumer of the machine. The at least one energy-saving function has energy-saving function properties.07-25-2013
20130191670CONTROL DEVICE, SYSTEM, AND COMPUTER PROGRAM PRODUCT - According to an embodiment, a control device includes a calculator and a setting unit. The calculator is configured to calculate a system processing time indicating a time required for processing executed after a system, the system including a plurality of elements, power to each element being individually controlled, resumes from a sleep state in which the number of elements supplied with power is limited to a predetermined number and an operation of the system is stopped. The setting unit is configured to set a mode indicating an operation state of the system according to the system processing time calculated by the calculator when a resume factor indicating a factor for resuming the system from the sleep state occurs.07-25-2013
20130191671INFORMATION PROCESSING UNIT, POWER-SAVING MANAGEMENT PROGRAM, AND STORAGE MEDIUM STORED WITH THE POWER-SAVING MANAGEMENT PROGRAM - An information processing unit having an auto power-off function includes a mode setting means for setting one mode from a plurality of pre-prepared modes. The pre-prepared modes include a first power-saving mode and a second power-saving mode. Also included are a processing execution means for executing game application or contents replay as internal processing, and a power controlling means for controlling power of the information processing unit. The power controlling means continues power-on in the first power-saving mode and changes to power-off in the second power-saving mode when a non-operated state in which no input operation has been carried out by the user has continued for a predetermined time or longer during execution of the internal processing.07-25-2013
20130191668SAFE UNATTENDED WAKE SYSTEM - An information handling system (IHS) includes a chassis. A processor is located in the chassis. A memory is located in the chassis and coupled to the processor. A disk drive is located in the chassis and coupled to the processor. An accelerometer is located in the chassis. A controller is located in the chassis and coupled to the accelerometer. The controller is operable, in response to a wake indicator signal associated with an IHS wake operation, to use the accelerometer to determine that the movement of the IHS exceeds a threshold and, in response, prevent the IHS wake operation such that operation of the disk drive is not initiated.07-25-2013
20120005509Method and Apparatus for Performing Energy Management via a Sub-System - Various methods for performing energy management via a sub-system are provided. One example method includes receiving a user input while a main processing system is in a power saving mode and buffering a representation of the user input. The example method further includes, in response to receiving the user input, triggering a wake up of a main processing system from the power saving mode, and causing transmission of the representation of the user input to the main processing system for processing. Similar and related example methods and example apparatuses are also provided.01-05-2012
20120030491ELECTRICAL APPARATUS AND POWER SUPPLY CONTROL METHOD - An electrical apparatus has a controller for switching between a normal power mode and power saving modes. A receiver receives instructions for a manipulation on the apparatus. A switch controller switches to a first power saving mode when no instruction for manipulation is received within a first standby time in the normal power mode, switches to a second and lower power saving mode when no instruction for manipulation is received and the time reaches a preset second standby time in the first power saving mode, switches to the normal power mode when an instruction for manipulation is received when the apparatus is in the first or second power saving mode, and switches to the second or a third power saving mode for supplying less power than the first power saving mode but more than the second when the time reaches the first standby time if a predetermined condition is satisfied.02-02-2012
20120030490COMMUNICATION SYSTEM - A communication system includes a network formed by a plurality of control units, each operated in a high power consumption mode and a low power consumption mode. A selected one or more of the control units act solely or in cooperation with each other to implement a specific function. Each of the selected one or more of the control units related to the specific function is set in the high power consumption mode. Each of the non-selected control units unrelated to the specific function is set in the low power consumption mode.02-02-2012
20120030489Power supply control within an integrated circuit - An integrated circuit 02-02-2012
20130198548APPARATUS AND METHOD FOR SAVING POWER OF USB DEVICE - An apparatus and method for saving power of a USB composite network device is provided. The method includes sending an idle request IRP to a composite driver at a bus driver of a network driver when the composite network device requests selective suspend, sending power state transition information to the composite driver and shifting a power state from a normal state to an intermediate sleep state at the bus driver, and shifting a power state from the normal state to the intermediate sleep state at the composite driver according to the power state transition information, wherein, when the composite network device is shifted to the selective suspend mode, the bus driver and the composite driver are in the intermediate sleep state and an NDIS miniport driver of the network driver is in the normal state.08-01-2013
20130198544POWER CONTROL SYSTEM AND RELATED METHOD OF OPERATION - An electronic system comprises a storage device and a host device each having a high power mode and a low power mode. The respective power modes of the storage device and the host device are changed in coordination with each other.08-01-2013
20130198545METHODS OF SPREADING PLURALITY OF INTERRUPTS, INTERRUPT REQUEST SIGNAL SPREADER CIRCUITS, AND SYSTEMS-ON-CHIPS HAVING THE SAME - In a method of power control for a system-on-chip, output of at least one of a first wakeup request signal and a second wakeup request signal is controlled such that a time interval between the output of the first wakeup request signal and the output of the second wakeup request signal is greater than or equal to a time interval threshold. The first wakeup request signal and the second wakeup request signal are one of concurrent and consecutive wakeup request signals.08-01-2013
20130198546DATA PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, AND STORAGE MEDIUM - A data processing apparatus includes first and second information processing apparatuses. The first information processing apparatus has a first power mode and a second power mode in which electric power consumption is smaller than in the first power mode. The second information processing apparatus is capable of communicating with the first information processing apparatus and an external apparatus via a network. Definition information including identification information identifying a packet received via the network and process information indicating a process to be performed on the packet is received at least from one of the first information processing apparatus and the external apparatus. If a packet is received from the external apparatus in the second power mode, the packet is analyzed to identify definition information corresponding to the packet based on the identification information. A process is performed according to the process information included in the definition information.08-01-2013
20130103963POWER SUPPLY CIRCUIT EMPLOYED IN COMPUTER FOR PERFORMING DIFFERENT STANDBY MODES - A power supply circuit includes a basic input output system (BIOS), a super input output (SIO), a bivibrator, a logical selector, and a voltage converter. The basic input output system (BIOS) is configured for storing different operation modes of a computer. The super input output (SIO) is configured for generating standby mode signals according to the different operation modes. The bivibrator is configured for generating a reference signal when upon receiving a clock signal from the computer when the computer is turned on. The logical selector is configured for generating a standby control signal in response to the reference signal and one of the standby mode signals. The voltage converter is configured for transforming the first standby voltage into a second standby voltage to drive the SIO. The SIO receives the second standby voltage before the clock signal is delayed and provided to the SIO to start the computer.04-25-2013
20120066533DOCUMENT VALIDATOR WITH POWER MANAGEMENT - The disclosure relates to a device and a method for validating documents of value, especially a low power validator for validating documents of value is described comprising: a processing unit for controlling operation of the validator; an inlet for receiving a document of value from a user; and a power management system for transitioning the validator between a power conserving mode and a normal operating mode, wherein the power management system comprises a wake up unit arranged to monitor the inlet for the presence of a document of value and to monitor the voltage provided from a power source.03-15-2012
20120066532ELECTRONIC DEVICE AND METHOD FOR SAVING ENERGY THEREOF - An electronic device includes a dynamic memory, a static memory, a detection unit, a copy unit and a set unit. The dynamic memory stores an interrupt monitoring program. The interrupt monitoring program monitors whether an interrupt request is generated, and generates an interrupt signal when the interrupt request is generated. The detection unit detects whether the electronic device needs to enter a sleep mode, and generates a detection signal if the electronic device needs to enter the sleep mode. The copy unit copies the interrupt monitoring program from the dynamic memory to the static memory in response to the detection signal, and runs the interrupt monitoring program in the static memory for monitoring whether an interrupt signal is generated. The set unit sets the dynamic memory into a self-refresh mode in response to the detection signal.03-15-2012
20120066531METHOD AND APPARATUS FOR ADAPTIVE POWER CONTROL IN A MULTI-LANE COMMUNICATION CHANNEL - An apparatus consisting of a digital communication channel comprised of a multiplicity of lanes where data is striped across the lanes in a predefined sequence. Each lane has the ability to be powered down or powered up in response to the amount of data being held in a transmit buffer at one end of the communication channel. The method consists of monitoring the amount of data being held in the transmit buffer; making the decision of how many lanes are required based on the amount of data; sending signals to cause the required number of lanes to be powered down or powered up; and performing the required power down or power up action at the particular transmitter and receiver. The fill level of the transmit buffer is continually monitored and the required number of active lanes and the striping sequence is calculated and updated as required as a function of the fill level, where a larger amount of data waiting to be transmitted will result in a greater number of lanes being powered up and a smaller amount of data waiting to be transmitted will result in a lesser number of lanes being powered up.03-15-2012
20130205151ELECTRONIC APPARATUS AND CONTROLLING METHOD OF PROTECTING ELECTRONIC APPARATUS - A controlling method for protecting an electronic apparatus, performed by the electronic apparatus to determine whether the system temperature thereof is overheated, so as to switch the electronic apparatus into a low-power operation mode when the system temperature is overheated. The controlling method is to monitor an electronic component of the electronic apparatus, so as to obtain the current temperature and the current working power of the electronic component and to determine whether the system temperature is overheated according to the current temperature and the current working power. When the system temperature is overheated, an overheating signal is generated to switch the electronic apparatus into the low-power operation mode.08-08-2013
20130205152OPERATING A SLEEP MANAGEMENT SERVICE - The claimed subject matter provides a method for operating a sleep management service. The method include identifying a set of guardians based on a local state for each of a plurality of compute nodes. The method also includes sending a wake request to all sleeping compute nodes in the identified set. The method further includes sending a request to become a guardian to all compute nodes in the identified set. Additionally, the method includes stopping a current guardian from being a guardian if the current guardian is less suitable than a threshold number of current guardians.08-08-2013
20130205154COMPUTER SYSTEM, METHOD FOR PROGRAMMING A REAL-TIME CLOCK AND A COMPUTER PROGRAM PRODUCT - A computer system includes at least one system component including a first realtime clock that produces interrupt requests, at least one power supply unit that supplies the system component with at least one operating voltage, wherein the power supply unit includes at least one microcontroller having a second realtime clock, and at least one firmware component, wherein the firmware component transfers programming of the first realtime clock to the second realtime clock before the computer system changes to a switched-off state or an energy-saving state.08-08-2013
20130205155METHOD AND APPARATUS FOR IMPLEMENTING LOW POWER CONSUMPTION FOR DATA SWITCHING DEVICE, AND DATA SWITCHING DEVICE THEREOF - An apparatus for implementing low power consumption for data switching device includes a dormancy management module that controls an upper layer logic component in a device to enter a low power consumption state when a current state parameter of the device satisfies a preset dormancy configurationcondition; detects whether an energy consumption state of a transmission medium is active; and wakes up the upper layer logic component in the device to enter a normal working state if the energy consumption state of the transmission medium is active. When a preset condition is satisfied, upper layer logic components such as a CPU, a network processor and an optical module in the device, properly stop full-time operation to save energy.08-08-2013
20130205153INFORMATION PROCESSING APPARATUS, CONTROL METHOD FOR INFORMATION PROCESSING APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM - An information processing apparatus capable of operating in a first power state and a second power state different from the first power state includes a reception unit configured to receive data via a network from an external apparatus, a storage unit configured to store first pattern and second pattern that are to be compared with the data received by the reception unit, and a comparison unit configured to compare the data received by the reception unit with a pattern stored in the storage unit in a case where the information processing apparatus operates in the first power state, and to compare the data received by the reception unit with the second pattern stored in the storage unit in a case where the information processing apparatus operates in the second power state.08-08-2013
20120096294Electronic Apparatus, Electronic Apparatus Power Control, Electronic Apparatus Power Control Program, And Storage Medium Storing Power Control Program - An electronic apparatus includes a first power source to generate power from external power; a photovoltaic power generation device to generate power from received light as cell-generated power; a power storage device to store cell-generated power; a second power source to generate power from cell-generated power; a mode switching unit to switch between normal power supply mode and reduced-power mode, in normal power supply mode, power is supplied from the first power source to the electronic apparatus, and in reduced-power mode, power supply from the first power source is stopped and power is supplied from the second power source; a voltage detector to detect voltage of cell-generated power; a memory to store condition-specific threshold voltages to determine conditions of the electronic apparatus; and a power supply controller to control switching between normal power supply mode and reduced-power mode by comparing the voltage of cell-generated power and the condition-specific threshold voltages.04-19-2012
20120096293Directed Resource Folding for Power Management - A mechanism is provided for directed resource folding for power management. The mechanism receives a set of static platform characteristics and a set of dynamic platform characteristics for a set of resources associated with the data processing system thereby forming characteristic information. The mechanism determines whether one or more conditions have been met for each resource in the set of resources using the characteristic information. Responsive to the one or more conditions being met, the mechanism performs a resource optimization to determine at least one of a first subset of resources in the set of resources to keep active and a second subset of resources in the set of resources to dynamically fold. Based on the resource optimization, the mechanism performs either a virtual resource optimization to optimally schedule the first subset of resources or a physical resource optimization to dynamically fold the second subset of resources.04-19-2012
20130212416MOTION ON COMPUTER - The processor of a computer in the form or a slate or clamshell can reconfigure a computer from a full power wake mode to a low power sleep mode or vice versa by using any combination of criteria that includes input and motion within a threshold period as detected by motion sensors such as a gyroscope, a shock sensor, and an accelerometer.08-15-2013