Abstract: A voltage drop of an output voltage of a DC-DC converter, caused by a wiring resistance, can properly be compensated at low cost. The DC-DC converter is connected to a low-voltage battery through an ignition switch and started up by the ignition switch. A transformation unit transforms a voltage inputted from a high-voltage battery and supplies the voltage to the low-voltage battery. A control circuit calculates a wiring resistance between the transformation unit and the low-voltage battery based on the voltage inputted from the low-voltage battery through the ignition switch in connecting the ignition switch and an output voltage and an output current of the transformation unit. The control circuit corrects a command value of the output voltage of the transformation unit based on the calculated wiring resistance to control the output voltage of the transformation unit. The invention can be applied to a DC-DC converter for electric-powered vehicle.

Abstract: A power-supply control device for battery having a plurality of cells connected in series has a voltage conversion unit that steps down a voltage at the battery to supply the stepped-down voltage to a first load, a first opening and closing unit that opens and closes a supply path of first power from the battery to the voltage conversion unit and a second load, a battery control unit that detects abnormality of the battery, controls opening and closing of the first opening and closing unit, and is operated by second power supplied from the battery or third power supplied from the voltage conversion unit, the second power being lower than the first power, and a second opening and closing unit that opens and closes a supply path of the second power from the battery to the battery control unit.

Abstract: According to one embodiment, an information processing apparatus having an internal display and a connection module for an external display, includes a storage module configured to store items of virtual desktop information to be displayed on an actual display screen of one of the internal display and the external display and items of information of a display which displays the items of virtual desktop information in association with each other, and a control module configured to read out, from the storage module, an item of virtual desktop information in association with the external display and to supply the item of virtual desktop information in association with the external display to external display upon detecting that the external display is connected to the connection module when one of the items of virtual desktop information is displayed on the actual display screen of the internal display.

Abstract: According to one embodiment, an information processing device includes an input controller, a display controller, a setting module and an executing module. The display controller is configured to display characters with an enlargement ratio based on a use method on a display unit. The setting module is configured to perform a setting based on the use method. The executing module is configured to execute a related tool based on the use method.

Abstract: According to one embodiment, an information processing apparatus includes a recommendation module and a controller. The recommendation module recommends a display mode using at least one of a display and an external display, based on a first information associated with the apparatus, a second information associated with the external display and a rule managed for deriving a display mode. The controller sets the apparatus in the recommended display mode, when an image is displayed in the recommended display mode. The controller sets the apparatus in a display mode other than the recommended display mode and corrects the managed rule, when an image is displayed in a display mode other than the recommended display mode.

Abstract: There is provided a packet transmission device which comprises a packet transfer processing part and a control part. The packet transfer processing part includes a table memory comprising a path selection table, a link status table, and a node status table. In these tables, information of each of paths, links, and nodes are stored and linked each other. A link/node status monitoring part in the control part monitors a packet outputted from the packet transfer processing part transmission and detects a fault occurred in a transmission of the packet. The fault is reflected on the information of paths in the tables only by updating the information of links and nodes and the path for packets outputted from the device is assigned in a short time.

Abstract: A DC-DC converter includes a power conversion unit, a load amount detector, a charge detector that detects whether or not a battery is being charged, a switching frequency setting unit, and a switching controller. The load amount detector detects a load amount of the power conversion unit. The switching frequency setting unit sets a switching frequency of a switching element based on the load amount when the charge detector detects that the battery is not being charged, and sets the switching frequency of the switching element to a predetermined value when the charge detector detects that the battery is being charged.

Abstract: A system simplification can be achieved by reducing the number of sensors required to detect currents and voltages when an output current is estimated. A switching power supply device 6 includes a current transformer 12, a switching circuit 13, a rectifying circuit 15, a smoothing circuit 16, an input voltage detecting circuit 18, a control part 19, an output voltage detecting circuit 22 and a PWM signal generating part 30. The control part 19 calculates a duty rate and an average value of voltage of the secondary side voltage of the current transformer 12 detected by the input voltage detecting circuit 18 based on a waveform of the detected voltage. The control part 19 calculates an output current lo based on the calculated duty rate, the calculated average value of voltage and an output voltage Vo detected by the output voltage detecting circuit 22.

Abstract: A communication control device includes a storage unit configured to store source addresses and destination addresses of one or more frames, a determination unit configured to determine respective access proportions for types of accesses to the storage unit, in accordance with an empty state of the storage unit, the empty state being a proportion of the number of empty entries in the storage unit to the total number of entries, and a control unit configured to control whether to access the storage unit, based on the access proportions determined by the determination unit and proportions for accesses having been made to the storage unit.

Abstract: According to one embodiment, an information processing apparatus having an internal display and a connection module for an external display, includes a storage module configured to store items of virtual desktop information to be displayed on an actual display screen of one of the internal display and the external display and items of information of a display which displays the items of virtual desktop information in association with each other, and a control module configured to read out, from the storage module, an item of virtual desktop information in association with the external display and to supply the item of virtual desktop information in association with the external display to external display upon detecting that the external display is connected to the connection module when one of the items of virtual desktop information is displayed on the actual display screen of the internal display.

Abstract: The DC-DC converter can calculate an input voltage without being influenced by a commutation time period of a primary-side current of a transformer. The DC-DC converter includes a transformer that has a primary and secondary winding, a switching circuit that is connected to the primary winding of the transformer to perform input voltage switching, a drive circuit that drives the switching circuit, a rectifier circuit that rectifies an AC voltage generated in the secondary winding of the transformer according to the switching operation of the switching circuit, and a controller that evaluates a value of the input voltage and performs predetermined processing based on the value of the input voltage. The controller detects a pulse signal emerging on an input side or an output side of the rectifier circuit, calculates a duty of the pulse signal, and evaluates the value of the input voltage based on the calculated duty.

Abstract: A packet processing apparatus includes a plurality of communication connecting unit each connected with a communication partner apparatus using one of a work path and a protection path, connecting unit for connecting, using a data bus, the plurality of communication connecting unit with one another; determination unit for, when a packet sent from the communication partner apparatus is received by one of the communication connecting unit, determining whether the packet is a maintenance packet that is used for monitoring a connection state with the communication partner apparatus; and transmitting unit for, when it is determined that the packet is a maintenance packet by the determination unit, transmitting the maintenance packet to the plurality of communication connecting unit using the data bus via the connecting unit.

Abstract: According to one embodiment, an information processor includes a moving image reproducing module, a display module, and an image quality adjusting module. The moving image reproducing module reproduces moving image content. The display module displays a screen of the moving image content reproduced by the moving image reproducing module. The image quality adjusting module adjusts the image quality of the screen, which is displayed by the display module, depending on whether the moving image reproducing module is reproducing the moving image content.

Abstract: According to one embodiment, an information processing apparatus comprises video memories each corresponding to each of the display devices, a determination module configured to determine whether an access that satisfies conditions preset with respect to display of the display devices exists in at least one of the video memories, and a changing module configured to change, when the determination module determines that the access that satisfies conditions preset with respect to display of the display devices does not exist in at least one of the video memories, an operation state of a display device corresponding to the at least one of the video memories determined that an access does not exist, from a first operation state to a second operation state having a power consumption lower than a power consumption of the first operation state.

Abstract: A packet forwarding device includes a storage that stores a path selection table in which link numbers of a Work path and a Protection path for each flow number of a transfer packet, a flag that indicates whether the link is made up of a plurality of physical lines, a link aggregation number that identifies an aggregation of the plurality of physical lines, and destination information are set in association with one another, a link status table, a node status table, and an LAG status table, and a path selection processor that selects a path that outputs the packet on the basis of the information.

Abstract: Charge efficiency of normal charge is improved without restricting an operation of a low-voltage load of an electric vehicle during the normal charge. During a charge of a high-voltage battery of a vehicle, when a determination of the normal charge is made, and when a determination that a mode switching target load is not operated is made, power saving mode transition processing is performed. Therefore, an operating mode of a DC-DC converter, which steps down a voltage at the high-voltage battery and supplies the stepped-down voltage to a low-voltage battery and a low-voltage load, is set to a power saving mode in which consumption power is reduced compared with a normal mode. When a determination that a start-up manipulation of the mode switching target load is performed is made, the operating mode of the DC-DC converter is changed to the normal mode.

Abstract: According to one embodiment, a graphics processing unit comprises a host interface, a plurality of processing cores, an arithmetic control unit, a video signal output interface, and an audio signal output interface. The host interface is configured to receive video data and audio data from a host. The arithmetic control unit is configured to process the video and audio data using at least a first processing core and a second processing core respectively. The video signal output interface is configured to output a video signal corresponding to the processed video data. The audio signal output interface is configured to output an audio signal corresponding to the processed audio data.

Abstract: According to one embodiment, an electronic apparatus includes a storage module, a screen display module, a display mode switching module, and a display mode setting information adding module. The storage module stores pieces of display mode setting information indicating display modes. The screen display module displays a screen including items indicating the display modes and a first item for adding a new display mode. The display mode switching module switches a display mode based on first display mode setting information among the pieces of the display mode setting information when a second item of the items has been selected, the first display mode setting information corresponding to the second item. The display mode setting information adding module adds display mode setting information indicating a new display mode when the first item has been selected. The screen display module displays the screen further including an item indicating the new display mode.

Abstract: According to one embodiment, a graphics processing unit detects characteristics of video data by analyzing frames of the video data by using at least one first processing core of a plurality of processing cores, and applies a process, which is associated with the detected characteristics of the video data, to audio data on a memory, by using at least one second processing core of the plurality of processing cores. The graphics processing unit includes an audio signal output interface and outputs an audio signal corresponding to the audio data, to which the process has been applied, to a sound device.

Abstract: A system simplification can be achieved by reducing the number of sensors required to detect currents and voltages when an output current is estimated. a switching power supply device 6 includes a current transformer 12, a switching circuit 13, a rectifying circuit 15, a smoothing circuit 16, an input voltage detecting circuit 18, a control part 19, an output voltage detecting circuit 22 and a PWM signal generating part 30. The control part 19 calculates a duty rate and an average value of voltage of the secondary side voltage of the current transformer 12 detected by the input voltage detecting circuit 18 based on a waveform of the detected voltage. The control part 19 calculates an output current lo based on the calculated duty rate, the calculated average value of voltage and an output voltage Vo detected by the output voltage detecting circuit 22.