Kabushiki Kaisha Toshiba

Toshiba Memory Corporation

Nissan Motor Company Limited

Automotive Energy Supply Corporation

Satoshi Shirai

Tatsunori Kanai

Yusuke Shirota

Tetsuro Kimura

Hiroyoshi Haruki

Masaya Tarui

Koichi Fujisaki

Akihiro Shibata

Haruhiko Toyama

Junichi Segawa

Shiyo Yoshimura

Hiroshi Yao

Nobuaki Akutsu

Takuya Takatsuka

According to an embodiment, a management device includes a counter storage unit, a first management information storage unit, and an update unit. The first management information storage unit stores a first management table capable of storing first management information about each of a predetermined number of first areas. The first management information indicates whether each second area included in a corresponding first area has data written therein. In response to writing of first data into the nonvolatile memory, when a state of a target second area indicated in the first management information about a target first area is an unwritten state, the update unit changes the state of the target second area to a written state; while when the state of the target second area indicated in the first management information is the written state, the update unit updates the counter value for the target first area.

Management device, information processing device, and management method

According to one embodiment, a memory device is connected to one or more information processing devices. The memory device includes a shared memory and a memory controller. The memory controller is configured to analyze an access to the shared memory by the one or more information processing devices and decide on an access method for accessing the shared memory by the one or more information processing devices. The memory controller is configured to give an instruction indicating the decided access method to the one or more information processing devices.

Memory device and information processing system

According to an embodiment, an information processing apparatus includes a processing device, a first memory, a second memory, and a controller. The processing device is configured to process first data. The first memory is configured to store at least part of the first data and has an active region supplied with power necessary for holding data. The second memory is configured to store part of the first data. The controller is configured to change number of active regions such that processing information is not more than a threshold. The processing information indicates an amount of processing for moving at least part of second data stored in the first memory to the second memory and for moving at least part of third data stored in the second memory to the first memory, in a certain period for processing the first data having a size larger than active regions.

Information processing apparatus and computer program product for changing swap spaces based on a performance threshold

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.

Control device, system, and computer program product

According to an embodiment, upon receiving a use request including an identifier of a program and authentication information, a use request processing unit makes a determination on validity of the use request based on an ID management information and access authority management information, generates an access key when the use request is valid, registers the access key in access key management information in correlation with a usable address range, and returns the access key to a transmission source of the use request. Upon receiving a read/write request including an address where reading-out or writing of data is performed and an access key, a read/write request processing unit makes a determination on validity of the read/write request based on the access key management information, and executes reading-out or writing of data with respect to a shared memory in response to the read/write request when the read/write request is valid.

Shared memory controller, shared memory module, and memory sharing system

A management device according to an embodiment manages reading and writing of data, by a processing circuit, from and into a first memory unit and a non-volatile memory unit containing a plurality of pages, and includes a setting storage unit, an access processing circuit, and a management circuit. The setting storage unit stores an access method indicating whether first access processing of writing and reading data into and from data transferred to the first memory unit from the non-volatile memory unit or second access processing of directly writing and reading data into and from data stored in the non-volatile memory unit is executed for each of the pages. The management circuit changes the access method for a third page on which the second access processing is set to be performed to the first access processing when quality of the third page is equal to or lower than a reference value.

Device and method to manage access method for memory pages

According to an embodiment, an information processing device includes a memory device, one or more peripheral devices, a processor, and a state controller. The processor is able to change between a first state, in which a command is executed, and a second state, in which an interrupt is awaited. When the processor enters the second state and if an operation for data transfer is being performed between at least one of the peripheral devices and the memory device, the state controller switches the information processing device to a third state in which power consumption is lower as compared to the first state. If the operation for data transfer is not being performed between any of the peripheral devices and the memory device, the state controller switches the information processing device to a fourth state in which power consumption is lower as compared to the third state.

Information processing device and semiconductor device

A recognition device includes a storage unit, an acquiring unit, a first calculator, a second calculator, a determining unit, and an output unit. The storage unit stores multiple training patterns each belonging to any one of multiple categories. The acquiring unit acquires a recognition target pattern to be recognized. The first calculator calculates, for each of the categories, a distance histogram representing distribution of the number of training patterns belonging to the category with respect to distances between the recognition target pattern and the training patterns belonging to the category. The second calculator analyzes the distance histogram of each of the categories to calculate confidence of the category. The determining unit determines a category of the recognition target pattern from the multiple categories by using the confidences. The output unit outputs the category of the recognition target pattern.

Control device and computer program product

A film-packaged cell has a flat rectangular shape where power-generating element is housed in packaging body together with an electrolytic solution, the film-packaged cell being sealed along four edges of the packaging body in a state where terminals are led out through one edge thereof. In an electrolyte injection step, the electrolytic solution is injected into bag-shaped body where three edges excluding the upper edge of the packaging body are sealed in an orientation where the terminals are protruding laterally, the electrolytic solution being injected from the side of the opening upper edge. In a partial sealing step performed before the electrolyte injection step, only one section of opening upper edge of the bag-shaped body near edge through which terminals are led out is partially sealed, thereby preventing the electrolytic solution from leaking out during electrolyte injection.

Method for manufacturing film-packaged cell

According to an embodiment, a communication device includes a register and a controller. The register receives data from an external device via an input data line. In a first state in which the communication device is able to receive the data, when a condition in which the data is not sent to the input data line continues for a certain period of time, the controller controls to switch state of the communication device to a second state in which power consumption is less than in the first state.

Communication device which decreases power comsumption by powering off unused functions when device is inactive

According to an embodiment, an information processing device includes a data obtaining unit and a data storage controller. The data obtaining unit is configured to obtain data measured by a sensor. The data storage controller is configured to store the data obtained by the data obtaining unit in a first memory of volatile nature when a sampling interval indicating an interval at which the data obtaining unit obtains the data is equal to or smaller than a threshold value. The data storage controller is configured to store the data obtained by the data obtaining unit and the data stored in the first memory in a second memory of nonvolatile nature when the sampling interval exceeds the threshold value.

Information processing device, semiconductor chip, information processing method, and computer program product

A data processing device according to embodiments comprises a data converting unit, a selecting unit, a managing unit, a updating unit, and a controller. The data converting unit is configured to convert update-data for updating at least a part of an electronic paper into processed update-data to be displayed. The selecting unit is configured to select an update-control-information identifier to be used for updating the electronic paper with the processed update-data. The managing unit is configured to store the processed update-data and a selected update-control-information identifier on a first memory. The updating unit is configured to instruct a drawing step of the electronic paper using the processed update-data and the update-control-information identifier stored on the first memory. The controller is configured to, when the processed update-data and the update-control-information identifier are stored on the first memory, execute the drawing step of the electronic paper using the processed update-data and the update-control-information identifier stored in the first memory in response to the instruction from the updating unit.

Data processing device, display control device, semiconductor chip, method of controlling display device, and computer-readable medium

According to an embodiment, an information processing apparatus that includes a processor, has a first control unit, a power storage unit, and a second control unit. The first control unit is configured to control execution of a process by the processor. The power storage unit is configured to store therein power. The second control unit is configured to control reduction of power consumption of the information processing apparatus in a case where there is a process waiting to be executed and an amount of stored power of the power storage unit is equal to or less than a first threshold.

Information processing apparatus, operation state control method, and computer program product

According to an embodiment, an information processing apparatus includes: a first control unit to control a first device; and a second control unit to control a second device. The first control unit includes a first request processing unit, a notification unit, and a first execution unit. The second request processing unit receives a second request including an instruction to start a process of the second device. The notification unit notifies the second control unit that the first control unit receives a first request. The second execution unit executes a second request received by the second request processing unit when the first device is in the active state, and executes the second request stored in the storage unit when the notification is received by the notification receiving unit.

Information processing apparatus, device control method and computer program product for saving power

According to an embodiment, an information processing apparatus is powered by a power source including a power generation unit and a power storage device that stores power generated by the power generation unit. The information processing apparatus includes a first obtaining, a second obtaining unit, and a first control unit. The first obtaining unit is configured to obtain first information indicating a value of power generated by the power generation unit. The second obtaining unit is configured to obtain second information indicating an value of stored energy in the power storage device. The first control unit is configured to start a process that is set in advance when the value of power indicated by the first information is greater than zero and the value of stored energy indicated by the second information is equal to or greater than a first threshold value.

Growing community of inventors

Kanagawa, Japan

Satoshi Shirai