Patent application number | Description | Published |
20110019535 | COMPUTER PROGRAM, APPARATUS, AND METHOD FOR MANAGING NETWORK - In response to a route-changing event, original routes on the network are changed to new routes. A destination-reachable range is identified as a range from which packets can reach an information processing device specified by a destination address. Modification of forwarding data is performed for a neighbor communication device which is located outside the destination-reachable range and adjacent to a communication device in the destination-reachable range, so as to enable forwarding of packets to that communication device in the destination-reachable range. The modified forwarding data is then transmitted to the neighbor communication device. The modification made to the forwarding data results in an additional destination-reachable range, which is thus added to the destination-reachable range. Another cycle of processing is then performed on the basis of the expanded destination-reachable range. | 01-27-2011 |
20120020372 | PROHIBITION TURN DETERMINATION APPARATUS - A prohibition turn determination apparatus determines an initial path so that the communication amounts of respective links connecting switches to each other are most efficiently distributed between a communication pair, that is, a pair of servers communicating with each other via a network. Then, the prohibition turn determination apparatus calculates the communication amounts of respective turns formed along the initial path based on the communication amounts set between end nodes which are the communication pair. Next, the prohibition turn determination apparatus determines prohibition turns, which are not used for packet communication, based on the communication amounts of respective turns by an Up/down method or a TP method. Finally, the prohibition turn determination apparatus determines the final routing to avoid the prohibition turns. | 01-26-2012 |
20120151090 | APPARATUS AND METHOD FOR STORING A PORT NUMBER IN ASSOCIATION WITH ONE OR MORE ADDRESSES - A port number is stored in a memory in association with one or more addresses using a data block by which at least one port number associated with a predetermined number of consecutive addresses is written into the memory. Further, a first port number assigned to output ports each being provided for different one of a plurality of relay nodes is stored in association with first consecutive addresses in such a manner that one or more data blocks including the first port number associated with the first consecutive addresses are written into the memory. | 06-14-2012 |
20130021922 | NETWORK MANAGING DEVICE AND NETWORK MANAGING METHOD - An initial address allocating unit | 01-24-2013 |
20130022047 | NETWORK APPARATUS AND NETWORK MANAGING APPARATUS - First-stage switches (B | 01-24-2013 |
20140173619 | INFORMATION PROCESSING DEVICE AND METHOD FOR CONTROLLING INFORMATION PROCESSING DEVICE - The present invention includes a plurality of computing units executing a plurality of threads including a communication control thread to which a receiving process by polling is assigned. In a CPU core, a computing unit executing the communication control thread performs polling in a memory region indicating notification of arrival of data and waits for execution of the receiving process until arrival of data, and when a computing unit executing an application thread executes a process assigned to the application thread, the computing unit executing the communication control thread moves to a resource-saving mode in which the use of physical resources is suppressed. | 06-19-2014 |
20150025848 | PARALLEL PROCESSING OPTIMIZATION METHOD, AND INFORMATION PROCESSING DEVICE - A specification unit specifies numbers of cores executing processing when a predetermined number of processings to be executed in parallel is allocated to cores by same amount by changing number of processings to be allocated within a range of numbers of cores capable of executing parallel processing. A determination unit determines number of cores with highest processing performance as the number of cores executing the parallel processing from among the specified numbers of cores. | 01-22-2015 |
20150052263 | INFORMATION PROCESSING SYSTEM AND CONTROL METHOD OF INFORMATION PROCESSING SYSTEM - A node includes a sending unit that sends a signal to another node; a receiving unit that receives a signal from another node; a determining unit that determines, when the sending unit sends a signal to the other node, that synchronization has been established with the other node, that determines, when the receiving unit receives a signal from another node, that synchronization has been established with the other node, and that determines, when a node in which synchronization has already been established with the other two nodes in each of which synchronization has been established, that synchronization has been established with the nodes; and a selecting unit that selects an information processing apparatus that is not determined, by the determining unit, that synchronization has been established as the other node at the sending destination for the signal. | 02-19-2015 |
20150092599 | DESIGN SUPPORT APPARATUS, DESIGN SUPPORT METHOD, AND RECORDING MEDIUM - A design support apparatus includes a memory and a processor coupled to the memory. The processor executes a process including: accepting inputs of the number of nodes to be connected to a network, the number of networks to be connected to each node, and the number of nodes to be connected to a terminating device being a relay device to be connected to the nodes among relay devices relaying communication between nodes; calculating the number of terminating devices included in each network based on the numbers having been accepted; specifying nodes to be connected to each terminating device for each network such that each node is connected to any of the number of terminating devices calculated and that individually different combinations of nodes are connected to the terminating devices included in all the networks; and outputting connection information indicating that the nodes specified are connected to the terminating devices. | 04-02-2015 |
20150195152 | INFORMATION PROCESSING SYSTEM FOR ASSOCIATION OF IDENTIFIERS - An information processing system includes: plural switches; plural information processing apparatuses; and a management apparatus. And the management apparatus includes: an association unit that performs associating first switch identifiers included in first information with second switch identifiers included in second information by calculating a maximum matching in a bipartite graph for the first switch identifiers and the second switch identifiers, in which the first information represents designed cable connections between the plural switches and the plural information processing apparatuses, and the second information represents actual cable connections between the plural switches and the plural information processing apparatuses; a conversion unit that converts, according to a result of the associating, the first switch identifiers included in the first information to the second switch identifiers; and a detector that detects a difference between the first information that includes the first switch identifiers which were converted and the second information. | 07-09-2015 |
20150220370 | JOB SCHEDULING APPARATUS AND METHOD THEREFOR - A plurality of compute nodes are divided into a plurality of groups. A maximum available resource amount determining unit determines, for each of the plurality of groups, the available resource amount of the compute node having the greatest available resource amount among the compute nodes belonging to the group as the maximum available resource amount of the group. An excluding unit compares the resource consumption of a job with the maximum available resource amount of each of the plurality of groups, and excludes a group whose maximum available resource amount is less than the resource consumption from search objects. A searching unit searches for a compute node whose available resource amount is greater than or equal to the resource consumption, from the compute nodes belonging to a group that is not excluded from the search objects. | 08-06-2015 |
20150256451 | APPARATUS AND METHOD FOR GENERATING ROUTING DATA USED IN A TREE-SHAPED CONNECTION - An apparatus generates routing data that defines, in a system in which a plurality of switches are connected to each other in a tree-shaped structure, a communication route between a plurality of end switches located at a lower level in the tree-shaped structure and a plurality of upper-level switches located at a level higher than the plurality of end switches in the tree-shaped structure, so that a first upper-level switch that switches communication data from a first node connected to a first end switch among the plurality of end switches to a second node connected to a second end switch among the plurality of end switches is identical with a second upper-level switch that switches communication data from the second node to the first node. The apparatus stores the generated routing data in a memory provided for the apparatus. | 09-10-2015 |
20150326661 | APPARATUS AND METHOD FOR PERFORMING INFINIBAND COMMUNICATION BETWEEN USER PROGRAMS IN DIFFERENT APPARATUSES - In InfiniBand, communication is made between a first queue-pair (QP) allocated to a first user-program executed within a first apparatus and a second QP allocated to a second user-program executed within a second apparatus. The first apparatus sets a specific code to a send work-request, after moving information previously set to the send work-request to a portion of the data, and transmits the data added with a first QP number identifying the first QP to the second apparatus. The second apparatus determines that the received data is added with the QP number, when the specific code is set to a receive work-request, identifies the first user-program based on the QP number, and sends the data to the second user-program via the receive work-request after deleting the QP number from the data and moving information stored in the portion of the data to the receive work-request. | 11-12-2015 |
20150334035 | APPARATUS AND METHOD FOR COLLECTIVE COMMUNICATION IN A PARALLEL COMPUTER SYSTEM - A parallel computer system includes a plurality of network switches that are all connected to each other, and a plurality of nodes each connected to one of the plurality of network switches, where each network switch is connected to two or more nodes of the plurality of nodes. Each node determines a first destination node of data to be transmitted by the each node at a given time so that a first network switch connected to the first destination node is different from a second network switch connected to a second destination node of data transmitted by any node, other than the each node, which is connected to a network switch to which the each node is connected, and transmits data to the determined first destination node. | 11-19-2015 |
Patent application number | Description | Published |
20080205702 | BACKGROUND IMAGE GENERATION APPARATUS - The information of a detection area is obtained by using radar, the information is sent to a mobile body detection unit, the position of a mobile body existing within the detection area is detected, a zone excluding a predetermined range surrounding the mobile body is identified by using a nonexistence zone identification unit, the information of the detection area at the time is obtained, a zone which does not include a mobile body is accurately generated by a background image generation unit, then the information of the detection area is obtained by a camera, and the difference between the generated background image and the aforementioned information is detected by a difference process unit; thereby an accurate position of the mobile body is detected. | 08-28-2008 |
20120141033 | IMAGE PROCESSING DEVICE AND RECORDING MEDIUM STORING IMAGE PROCESSING PROGRAM - An image processing device includes a storage unit that stores dictionary information; a generating unit that extracts, from an input image, a plurality of characteristic point candidates, and generates a plurality of combinations that each include a plurality of characteristic point candidates; a removing unit that removes, for each of the combinations, at least one characteristic point candidate based on at least one of the dictionary information and information obtained by analyzing the input image; and a determining unit that acquires, for each of the combinations, results of matching the dictionary information with the combination of which the at least one characteristic point candidate has been removed, selects a combination of characteristic point candidates based on the acquired matching results, and determines, as the characteristic points, the plurality of characteristic point candidates included in the selected combination. | 06-07-2012 |
20130155275 | IMAGE CAPTURING APPARATUS, IMAGE CAPTURING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM STORING IMAGE CAPTURING PROGRAM - An image capturing apparatus includes: an image capturing device in which a plurality of pixels having sensitivity to visible light and illuminating light in a certain wavelength range are arranged and that captures a moving image having a plurality of frames; a radiation device that radiates the illuminating light onto an image capturing region of the image capturing device; and a processor that executes a procedure, the procedure comprising: selecting, from among a plurality of frames captured by the image capturing device, a frame captured during an OFF period of the radiation device, and outputting the selected frame as a frame representing a visible image of the image capturing region. | 06-20-2013 |
20130243251 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - An image processing device includes a memory unit, a candidate pupil detecting unit and a pupil determining unit. The memory unit is used in storing information regarding a pupil size. The candidate pupil detecting unit detects noncircular candidate pupils from an image in which an eye area is captured. The pupil determining unit extrapolates the shapes of the candidate pupils that are detected by the candidate pupil detecting unit and, based on the pupil size stored in the memory unit, determines a pupil from among the candidate pupils. | 09-19-2013 |
20130307797 | TABLET TERMINAL AND RECORDING MEDIUM - A tablet terminal receives a triggering indication to enable a detection result of eye gaze, and sets a target area in which the presence of a target object is assumed on a screen of a touch panel using a detection position of eye gaze. The tablet terminal further displays a partial image displayed in the target area out of an image displayed on the screen in an aiming area in which a touch operation to the target area is received in place of the target area, and records a correspondence relation between coordinates of the aiming area and coordinates of the target area. When a touch operation is received within the aiming area, the tablet terminal converts the coordinates of the aiming area in which the touch operation is received into the coordinates projected to the target area using the correspondence relation recorded, and then outputs the converted coordinates. | 11-21-2013 |
20140015778 | TABLET DEVICE, AND OPERATION RECEIVING METHOD - A tablet device | 01-16-2014 |
20140063221 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD - An image processing apparatus including a detection unit configured to detect a face area and an eye area from images that are sequentially input; a motion vector calculation unit configured to calculate, between two of the images, a first motion vector in the face area and second motion vectors in a plurality of blocks obtained by dividing the eye area; a similarity calculation unit configured to calculate, for each pair of the images, a value relevant to a similarity between the first motion vector and each of the second motion vectors; and a determination unit configured to determine whether blinking has occurred based on the value relevant to the similarity. | 03-06-2014 |
20140368687 | TERMINAL DEVICE AND LINE OF SIGHT DETECTION METHOD - A terminal device includes, a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, obtaining information that indicates a state of an imaging unit when photographing a subject; determining whether an image photographed by the imaging unit includes blurriness due to shaking of the imaging unit based on the obtained information; and using an image determined as not including blurriness in the determining to detect a line of sight of the photographed subject. | 12-18-2014 |
20150044645 | PERUSING DETERMINATION DEVICE PERUSING DETERMINATION METHOD - A perusing determination device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, detecting a movement direction of a line-of-sight of a user reading a document; measuring time for the user to read each line of the document based on a detection result of the detecting; and determining whether the user has perused the document based on variation of time for reading the each line. | 02-12-2015 |
20150161472 | IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD - An image processing device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute: determining whether or not an eye region of a user being detected a line-of-sight in an image resulting from photographing an eye of the user is influenced by reflection light, the eye region being a region of the eye; and detecting, as a feature portion of the eye, a region that is included in the eye region and that includes a pixel having a feature that is the same as or similar to any of features of the feature portion, when it is determined that the eye region is influenced by the reflection light, the features being accumulated for respective strengths of influences of the reflection light that appear in images of the feature portion of the eye. | 06-11-2015 |
20160095511 | EYE GAZE DETECTING DEVICE AND EYE GAZE DETECTION METHOD - An eye gaze detecting device includes: a memory configured to store position information regarding a specific position where a specific object is located; and a processor coupled to the memory and configured to: identify an eye gaze position regarding the subject in an image for each of a plurality of images including the image, and calculate a correction value based on the position information and a plurality of eye gaze positions including the eye gaze position, the correction value causing the plurality of eye gaze positions to match the specific position. | 04-07-2016 |
Patent application number | Description | Published |
20100132189 | Method for taking an electronic component out of a carrier tape - A method for taking an electronic component out of a carrier tape configured to house the electronic component in a concave that is defined by a sidewall and a bottom surface reduces a binding force applied by the concave to the electronic component by stretching the sidewall to outside near a perforation hole that is formed at least one of the sidewall and a portion of the bottom surface adjacent to the sidewall. | 06-03-2010 |
20100246149 | CONNECTION MEMBER AND PRINTED CIRCUIT BOARD UNIT - A connection member is disposed between a semiconductor package and a printed wiring board. The connection member includes: a base member formed of an insulating material; a plurality of through-holes provided in the base member at corresponding positions between a plurality of first terminal pads of the semiconductor package and a plurality of second terminal pads of the printed wiring board; and an electronic component inserted in the plurality of through-holes, the electronic component having a first electrode and a second electrode at ends thereof, the first electrode connected to one of the first terminal pads, the second electrode connected to one of the second terminal pads. | 09-30-2010 |
20110304954 | SOLID ELECTROLYTIC CAPACITOR AND POWER CIRCUIT - A solid electrolytic capacitor includes a capacitor element having two opposite cathode surfaces, a cathode terminal metal plate having a first cathode connecting portion electrically connected to one of the two opposite cathode surfaces, and an auxiliary cathode metal plate having a second cathode connecting portion electrically connected to the other one of the two opposite cathode surfaces of the capacitor element. The cathode terminal metal plate includes a groove electrically connected to the first cathode connecting portion. The auxiliary cathode metal plate includes an end portion that is electrically connected to the second cathode connecting portion and engages with the groove. The cathode terminal metal plate further includes an outer terminal portion. | 12-15-2011 |
20120088335 | MANUFACTURING METHOD OF THE ELECTRONIC COMPONENT - Manufacturing method of an electronic component including connecting one lead of a pair of leads to a surface parallel with a pn connection layer of an electronic element having a structure where the p-type layer and the n-type layer are connected by the pn connection layer provided between the p-type layer and the n-type layer, connecting another lead to another surface parallel with the pn connection layer; and forming a supporting part of the pair of the leads that is connected to and supporting the electronic element, and an electrode part functioning as an electrode, by bending the pair of the leads to an outside. | 04-12-2012 |
20140168860 | ELECTRONIC COMPONENT AND MANUFACTURING METHOD THEREOF - An electronic component includes a metal case with an opening at one end, a metal foil placed in an internal space of the metal case, a packing made of an elastic material and fit into the opening of the metal case, the packing having a through-bore, a cap made of a foamed material and provided at an outer side of the packing, a conductive tab inserted in the through-bore of the packing and connected at one end to the metal foil in the internal space of the metal case, and a lead with a first end connected to another end of the conductive tab and a second end projecting externally from the metal case. | 06-19-2014 |
20150213958 | CAPACITOR AND METHOD OF MANUFACTURING CAPACITOR - A capacitor includes: dielectric layers including a first dielectric layer, a second dielectric layer, and at least one intermediate dielectric layer laminated between the first dielectric layer and the second dielectric layer; first interlayer electrode and second interlayer electrode arranged alternately with each other between at least two layers among the dielectric layers; a first external electrode disposed on lateral surfaces of the dielectric layers and coupled to the first interlayer electrode; and a second external electrode disposed on lateral surfaces of the dielectric layers and coupled to the second interlayer electrode, wherein the intermediate dielectric layer includes first internal electrodes coupled to the first interlayer electrode, arranged in a plane direction of the intermediate dielectric layer and spaced apart from each other, and second internal electrodes coupled to the second interlayer electrode, arranged alternately with the first internal electrodes and spaced apart from the first internal electrodes. | 07-30-2015 |
20160055977 | CAPACITOR AND METHOD OF MANUFACTURING CAPACITOR - A capacitor includes: dielectric layers including a first dielectric layer, a second dielectric layer, and at least one intermediate dielectric layer laminated between the first dielectric layer and the second dielectric layer; first interlayer electrode and second interlayer electrode arranged alternately with each other between at least two layers among the dielectric layers; a first external electrode disposed on lateral surfaces of the dielectric layers and coupled to the first interlayer electrode; and a second external electrode disposed on lateral surfaces of the dielectric layers and coupled to the second interlayer electrode, wherein the intermediate dielectric layer includes first internal electrodes coupled to the first interlayer electrode, arranged in a plane direction of the intermediate dielectric layer and spaced apart from each other, and second internal electrodes coupled to the second interlayer electrode, arranged alternately with the first internal electrodes and spaced apart from the first internal electrodes. | 02-25-2016 |
Patent application number | Description | Published |
20090219673 | Information equipment - Information equipment includes an open/close mechanism that opens or closes exhaust ports, a cooling fan that dissipates heat in the information equipment into the air through the exhaust ports, a user state detecting part that detects a contact state in which the hand of a user is in contact with the information equipment or a closeness state in which the hand of the user is close to the information equipment, and a heat dissipation control part that controls an open/closed state of the open/close mechanism so that heat exhausted from the exhaust ports is not directed to the hand of the user that is contact with or close to the information equipment, in accordance with the contact state or the closeness state detected by the user state detecting part. | 09-03-2009 |
20090222147 | TEMPERATURE CONTROLLING APPARATUS, INFORMATION PROCESSING APPARATUS, AND RECORDING MEDIUM - A temperature controlling apparatus determines a fan rotation speed from a surrounding noise and a fan noise, measures a temperature of a large scale integration (LSI) device or the like that is a controlled object, determines, in a cooling capacity range of the determined fan rotation speed, an operating clock frequency that falls within an allowable temperature range, and controls the LSI to be connected. | 09-03-2009 |
20100162008 | Information processing device, information processing system, program and controller - An information processing device is provided. The information processing device which operates upon receipt of power supply from a power unit connected to an alternative current power source or from a battery includes an obtaining unit which obtains load information of parts included in the information processing device itself, a deciding unit which decides a voltage value to be supplied by the power unit which supplies electric power to the information processing device, based on the load information obtained by the obtaining unit, and an output unit which outputs a signal relative to the voltage value decided by the deciding unit to the power unit. | 06-24-2010 |
20100169674 | POWER-SOURCE CONTROL SYSTEM AND POWER-SOURCE CONTROL METHOD - A power-source control system and method which calculates required power representing electric power to be supplied to an information processing apparatus, supplies electric power corresponding to the required power calculated, controls the power-source apparatus, generates frequency information representing an operating frequency to be determined by the frequency controller in accordance with a load of a CPU, and changes the operating frequency of the CPU by assigning the operating frequency represented by the frequency information to the CPU when the electric power to be used in the information processing apparatus is adjusted using the required power calculated. | 07-01-2010 |
20100201306 | CHARGING SYSTEM, PROCESSOR AND FEEDER - A charging system including: a processor that includes a containing part for selectively containing either one of a secondary battery of a first type and a secondary battery of a second type capable of being rapidly charged with an electrical quantity greater than that of the secondary battery of the first type, and that carries out processing using, as a power source, the secondary battery contained in the containing part; and a feeder for feeding power to the processor so as to charge the secondary battery, wherein the processor includes: a determination part for determining whether or not the contained secondary battery needs to be charged; a battery detection part for detecting the type of the contained secondary battery when it is determined that the secondary battery needs to be charged; and a transmission part for transmitting, to the feeder, a feed instruction. | 08-12-2010 |
20100264746 | WIRELESS POWER TRANSMITTING SYSTEM, POWER RECEIVING STATION, POWER TRANSMITTING STATION, AND RECORDING MEDIUM - A wireless power transmitting system that transmits power from a power transmitting station to a power receiving station wirelessly includes the power receiving station. The power receiving station includes a unit receiving power from the power transmitting station, a unit obtaining a level of power received through the antenna, a unit obtaining a level of power consumed by the device operating while being supplied with received power and a unit transmitting the received power level and the power consuming level to the power transmitting station wirelessly. The power transmitting station includes a unit receiving the received power level and the power consuming level from the power receiving station wirelessly, a unit controlling the level of power transmitted through the transmitting antenna based on the difference between the received power level and the received power consuming level, and a unit transmitting power to the power receiving station wirelessly. | 10-21-2010 |
20100325465 | POWER MANAGEMENT APPARATUS AND METHOD - An information processing apparatus and method include measuring power consumptions of devices and outputting power consumption data, receiving operational conditions of the devices for measuring the power consumptions of the devices, setting the operational conditions of the devices according to application-setting conditions, and executing an application program to measure reference power consumptions for executing the application program. The information processing apparatus includes a power consumption data-transmitting section transmitting power consumption data, a normalized power consumption-calculating section receiving normalized reference power consumption calculated from reference power consumptions of information processing apparatuses, and calculating normalized power consumption from the normalized reference power consumption and the reference power consumptions. | 12-23-2010 |
20110231860 | LOAD DISTRIBUTION SYSTEM - A load distribution system for allocating a job to one of a plurality of arithmetic devices includes a temperature data acquirer, a candidate selector, and a job allocator. The temperature data acquirer acquires temperature data indicating temperature of each of the plurality of arithmetic devices. The candidate selector selects at least one of the plurality of arithmetic devices as a candidate for a device to which the job is to be allocated. The job allocator allocates the job to the selected candidate. | 09-22-2011 |
20120008351 | VOLTAGE-DIVIDING POWER FACTOR CORRECTION CIRCUIT, VOLTAGE-DIVIDING POWER FACTOR CORRECTION APPARATUS AND VOLTAGE-DIVIDING POWER FACTOR CORRECTION METHOD - A circuit include: a first power factor correction circuit that forces current produced by the positive AC voltage to be in phase with the positive AC voltage so that a power factor of electric power is improved; a second power factor correction circuit that forces current produced by the negative AC voltage to be in phase with the negative AC voltage so that a power factor of electric power is improved; and an output circuit including a first capacitor storing first electric power with a power factor improved by the first power factor correction circuit and a second capacitor storing second electric power with a power factor improved by the second power factor correction circuit, the first capacitor and the second capacitor being provided in series, the output circuit outputting the first electric power stored in the first capacitor and the second electric power stored in the second capacitor. | 01-12-2012 |
20120153929 | DC-DC CONVERTER, MODULE, POWER SUPPLY DEVICE, AND ELECTRONIC APPARATUS - A controller CT | 06-21-2012 |
20120163052 | Power supply unit and information processor - A power supply unit includes multiple input terminals to which alternating-current power is input; a positive terminal and a negative terminal for outputting direct-current power; a rectifier circuit configured to rectify the input alternating-current power; a first inductor connected to the rectifier circuit; a first capacitor connected between the positive terminal and the negative terminal; a first rectifying device connected between the output terminal of the first inductor and the positive terminal and having a rectification direction in a direction from the output terminal of the first inductor toward the positive terminal; a switching device connected between an input terminal of the first rectifying device and the negative terminal; a second rectifying device and a second capacitor connected in parallel to the switching device; and a second inductor connected between a connection of the second rectifying device and the second capacitor and the positive terminal. | 06-28-2012 |
20120182769 | DC-DC CONVERTER, POWER SUPPLY UNIT AND AN INFORMATION PROCESSING APPARATUS - A DC-DC converter is disclosed that includes a first winding of a first transformer to which direct current power is supplied, a switching element configured to be connected in series with the first winding of the first transformer, a first winding of a second transformer and a capacitor configured to be connected in series with each other and in parallel with the switching element, a second winding of the first transformer configured to be coupled with the first winding of the first transformer, output terminals configured to be connected to the second winding of the first transformer and to output direct current power, and a pair of second windings of the second transformer configured to be coupled with the first winding of the second transformer, the second windings of the second transformer being connected in parallel with each other with reverse polarity between the output terminals. | 07-19-2012 |
20120236045 | DISPLAY CONTROL APPARATUS AND DISPLAY CONTROL METHOD - The disclosed method includes: detecting a case where at least both of a condition that a pointer representing a pointing destination by a pointing device is not displayed on one display device of a plurality of display devices and a condition that a window generated by a predetermined program is not displayed on the one display device are satisfied; and upon the detecting, lowering brightness of the one display device. Moreover, another method includes: first detecting a predetermined operation for an active window displayed on any display device; identifying a first display device on which the active window is displayed; second detecting that a pointer representing a pointing destination by a pointing device is not displayed on the first display device after a predetermined period elapsed since the first detecting; and upon the second detecting, carrying out a setting for lowering brightness of the first display device. | 09-20-2012 |
20120242302 | POWER SUPPLY DEVICE - A power supply device includes a step-down unit to step down an input voltage, a switching unit to perform switching on a stepped-down voltage obtained through the stepping down by the step-down unit so as to externally output the voltage, an output variation detection unit to detect a corresponding variation of output from the switching unit, a delay unit to delay the input voltage by a prescribed time period, a delay variation detection unit to detect a corresponding variation of a delayed voltage output from the delay unit, an addition unit to add corresponding variations of the power supply voltage and the delayed voltage respectively detected by the output variation detection unit and the delay variation detection unit, and a control unit to perform feedback control on the basis of the corresponding variations of the power supply voltage and the delayed voltage added by the addition unit. | 09-27-2012 |
20130099768 | CONTROL CIRCUIT AND ELECTRONIC APPARATUS USING THE SAME - A control circuit includes: a first switching device that includes a source, a gate, and a drain; a negative voltage generating circuit that generates, from a pulse width modulation signal that controls the gate of the first switching device, a negative potential voltage which is equal to or smaller than a threshold of the first switching device; a gate control circuit that outputs a signal obtained by shifting a level of the pulse width modulation signal by an amount equal to the negative potential voltage to the gate of the first switching device; a second switching device that is disposed on a side of the drain of the first switching device; and a negative voltage detecting circuit that outputs a signal for turning ON the second switching device upon detecting that the negative potential voltage generated by the negative voltage generating circuit has reached a predetermined negative potential. | 04-25-2013 |
20130262904 | STORAGE APPARATUS AND METHOD OF DETERMINING DEVICE TO BE ACTIVATED - In a storage apparatus, a calculation unit calculates first power consumption by adding the power consumption of a first storage device not in use to the total power consumption of a plurality of storage devices in operation, and calculates second power consumption by adding the power consumption of a second storage device not in use to the total power consumption of the plurality of storage devices in operation, and subtracting therefrom the power consumption of one of the plurality of storage devices in operation, from which data is movable to the second storage device. A determination unit determines to activate the first storage device when the second power consumption is not lower than the first power consumption, and determines to activate, the second storage device when the second power consumption is lower than the first power consumption. | 10-03-2013 |
20130322129 | POWER FACTOR CORRECTION CIRCUIT - This is an insulation-type power factor correction circuit including a resonance unit configured to accumulate energy of a surge occurring when the first switching element is turned off and to transmit a resonance current generated by resonating the first capacitor and the primary winding of the second transformer from the primary winding of the second transformer to the secondary winding, a rectifier unit configured to rectify a resonance current output from the resonance unit, a smoothing unit configured to regenerate power output from the rectifier unit to an output of the insulation-type power factor correction circuit, and a control unit configured to control a first switching element for each cycle. | 12-05-2013 |
20140153288 | DC-DC CONVERTER WITH LC RESONANCE CIRCUIT - A DC-DC converter includes a capacitor configured to be charged for a predetermined period by an external voltage, an inductor configured to constitute an LC resonance circuit together with the capacitor, a closed-loop current path configured to release energy accumulated in the capacitor after the predetermined period to cause a current flowing in the LC resonance circuit to oscillate, a transformer configured to receive a current flowing in the closed-loop current path, and a rectifying circuit situated on an output side of the transformer. | 06-05-2014 |
20140169051 | POWER SUPPLY DEVICE - A power supply device includes: a first serial circuit coupled between a first output terminal and a second output terminal, and including a first switching element and a first rectification element; a second serial circuit coupled between the first output terminal and the second output terminal, and including a second switching element and a second rectification element; a third switching element inserted between a connection point between a first inductor and a first input terminal, and a second output terminal; a fourth switching element inserted between a connection point between a second inductor and a second input terminal, and the second output terminal; a control circuit configured to control the first and second switching elements; and a synchronous rectification control circuit configured to control the third and fourth switching elements. | 06-19-2014 |
20140232365 | CONTROL DEVICE, CONTROL METHOD, AND POWER SUPPLY DEVICE - A control device includes: a power supply circuit that controls output voltage using a switching element; a generation unit that generates a reference signal on the basis of the output voltage from the power supply circuit; a PWM unit that generates a PWM signal that is output to the switching element by comparing the reference signal with a carrier signal; and a switching unit that switches a frequency of the carrier signal by changing amplitude of the carrier signal, wherein the generation unit generates the reference signal on the basis of the frequency. | 08-21-2014 |
20150084607 | POWER SUPPLY APPARATUS - A power supply apparatus includes a power supply section and a control section. The power supply section includes a first switch which performs switching of power-supply output, an inductor and a capacitor which form an LC circuit that resonates current flowing through the first switch, and a second switch which changes capacitance of the capacitor. The control section finds in advance a correspondence between a time ratio of a switching pulse of the first switch and a resonance frequency which matches an edge of a switching pulse having each time ratio, and controls switching of the second switch so as to resonate the LC circuit at a resonance frequency corresponding to a time ratio at operation time. | 03-26-2015 |
20150138851 | POWER SUPPLY APPARATUS - A PFC circuit generates substantially sinusoidal current that is in-phase with AC input voltage to compensate for a power factor. A DC-DC converter converts the voltage of a signal outputted from the PFC circuit to determined voltage. A current change detection section detects an amount of change in current outputted from the DC-DC converter, compares the detected amount of change in current with a threshold set in advance, and if the detected amount of change in current is larger than the threshold, outputs a gain switching signal for raising the gain of voltage outputted from the PFC circuit. The current change detection section outputs a voltage control signal for raising the voltage outputted from the PFC circuit to a determined value. A voltage setting section sets the voltage outputted from the PFC circuit to the determined value on the basis of the voltage control signal. | 05-21-2015 |
20150155792 | POWER SUPPLY DEVICE AND CONTROL METHOD OF POWER SUPPLY DEVICE - First FET switches control supply of electricity from an external power supply to a primary winding of a transformer. A condenser is connected, in series, to a secondary winding of the transformer. A second FET switch is connected, in parallel, to the secondary winding and the condenser. The diode is connected, in parallel, to the second FET switch. A switch control unit acquires a value obtained by measuring a current flowing through the first FET switches and the second FET switch and controls, on the basis of the measurement result of the current, conduction of the first FET switches and the second FET switch. | 06-04-2015 |
20150188534 | SEMICONDUCTOR DEVICE - A semiconductor device includes: a first field-effect transistor configured to have a source connected to a reference potential node; a second field-effect transistor configured to have a source connected to a drain of the first field-effect transistor, and a gate connected to the source of the first field-effect transistor; a gate signal node configured to input a gate signal therein; a first resistor configured to be connected between the gate signal node and a gate of the first field-effect transistor; and a first capacitor and a switch circuit configured to be connected between a drain of the second field-effect transistor and the gate of the first field-effect transistor, in which the switch circuit is connected in series with the first capacitor. | 07-02-2015 |
20150200050 | INDUCTOR APPARATUS AND INDUCTOR APPARATUS MANUFACTURING METHOD - An inductor apparatus includes: a substrate including an electrical insulation property and a non-magnetic material; and a plurality of inductors disposed in the substrate so as to extend from a first surface of the substrate to a second surface of the substrate, each of the plurality of inductors including: an inductor conductive part that has an electrical conductivity and extends in a thickness direction of the substrate; and a magnetic layer that covers a side of the inductor conductive part and include a relative permeability and a soft magnetic material. | 07-16-2015 |
20150236590 | SYNCHRONOUS RECTIFICATION CONVERTER AND CONTROL METHOD OF SYNCHRONOUS RECTIFICATION CONVERTER - A synchronous rectification converter includes: a first switching element coupled between a inductor and an input terminal; a second switching element coupled between the inductor and the input terminal; a capacitive element coupled between the other end of the inductor and the other end of the input terminal; a control circuit detects voltages of the inductor and the capacitive element; a current inversion detection circuit detects inversion of a direction in which a current supplied from the second switching element to the inductor flows and outputs an inversion signal; a delay circuit delays the inversion signal and outputs a delay inversion signal; a synchronous rectification reset circuit that changes the control signal; a load detector detects reduction of an output current supplied from a connection node of the inductor and the capacitive element; and a delay control circuit generates a delay control signal. | 08-20-2015 |
20150256101 | POWER CIRCUIT - A power circuit includes: a rectifying circuit configured to rectify an AC voltage; a capacitor configured to integrate an output current of the rectifying circuit; a field effect transistor connected between the rectifying circuit and the capacitor; and a control circuit configured to supply a first gate voltage to a gate of the field effect transistor when a voltage of the capacitor is lower than a threshold value and supply a second gate voltage to the gate of the field effect transistor when the voltage of the capacitor is higher than the threshold value, wherein a resistance of the field effect transistor when the first gate voltage is supplied is higher than a resistance of the field effect transistor when the second gate voltage is supplied. | 09-10-2015 |
20150302972 | PLANAR TYPE TRANSFORMER AND SWITCHING POWER SUPPLY CIRCUIT - A planar type transformer includes: a multilayer substrate including a primary main winding pattern and a secondary main winding pattern that perform first power transmission, the primary main winding pattern and the secondary main winding pattern being stacked with an insulating layer interposed between the primary main winding pattern and the secondary main winding pattern; and an auxiliary winding that is disposed outside the multilayer substrate and performs second power transmission between the auxiliary winding and the primary main winding pattern or the secondary main winding pattern. | 10-22-2015 |
20150346788 | CONTROL DEVICE, DC-DC CONVERTER, SWITCHING POWER SUPPLY APPARATUS, AND INFORMATION PROCESSING APPARATUS - A control device includes a processor that executes a process including generating a driving signal that drives a switching device, so that an output voltage of a converter circuit that performs a step-down conversion on input power by driving the switching device matches a target value, and modifying the target value so that as an output current of the converter circuit becomes lower the output voltage becomes closer to an upper limit value of the output voltage. | 12-03-2015 |
20150381065 | DOUBLE-ENDED FORWARD CONVERTER AND POWER SUPPLY DEVICE - A double-ended forward converter includes: a first switching element and a second switching element that are coupled to a primary side of a transformer; a pulse generation circuit that generates a pulse signal for controlling the first and second switching elements; an isolation transformer that converts the pulse signal into an alternating-current signal; a rectifier circuit that rectifies the alternating-current signal and generate gate voltages of the first and second switching elements; a driver circuit that includes a third switching element which drives gates of the first and second switching elements, a voltage generated on a secondary side of the isolation transformer being input to a gate of the third switching element; and a minus bias generation circuit that generates a source voltage of the third switching, based on a change in the voltage generated on the secondary side of the isolation transformer. | 12-31-2015 |