Kabushiki Kaisha Toshiba

Toshiba Memory Corporation

Kabushiki Kaishi Toshiba

Toshiki Kizu

Tatsunori Kanai

Hiroshi Yao

Seiji Maeda

Osamu Torii

Hirokuni Yano

Yoshimitsu Shimojo

Yasuro Shobatake

Hisako Tanaka

Yoshinori Shigeta

Takeshi Yokokawa

Hiroshi Isozaki

Shunsuke Sasaki

Jun Kanai

Shintarou Sano

Kohei Momosaki

Yuzo Tamada

Yusuke Shirota

Junichi Segawa

Takeshi Aikawa

Toshio Shirakihara

Akira Takeda

Mitsuru Kakimoto

Takashi Suzuoka

Yuji Ishikawa

Yasushi Kawakura

Ryuichiro Ohyama

Ryuta Nara

According to an embodiment, in an information processing device, when there is no change in a first image received from an image sensor, reception of the next first image is awaited. When there is a change in the first image, a second image having a higher resolution than the first image is received from the image sensor and processing for the second image is performed.

Information processing device and image input device

A semiconductor integrated circuit for a radio communication terminal sequentially uses a plurality of frequency channels by instructions from a hopping frequency decision unit to receive packet data by a reception unit. When the integrated circuit cannot detect the head of the packet data in reception operations, the integrated circuit cannot receive packet data should be received originally then assumes that the received packet data is a packet error. And the integrated circuit calculates packet error rates for each frequency channel on the basis of the number of times of reception operations performed for each frequency channel and of the number of times of packet errors to estimate channel qualities by using the packet error rates.

Radio communication device and semiconductor integrated circuit device used for the same

According to an embodiment, an information processing apparatus includes a secure OS, a non-secure OS, and a monitor. The monitor is configured to switch between the OSs. The secure OS includes a memory protection setting controller, a processing determination controller, and a secure device access controller. The memory protection setting controller is configured to set a protection address in a memory for each certain processing. The processing determination controller is configured to receive an access type, a physical address of an access destination, and data to be written, acquire a list of processing, and determine a type of processing to be performed. The secure device access controller is configured to receive the access type, the physical address of an access destination, and data to be written, and access a peripheral identified by the physical address.

Information processing apparatus and computer program product

According to an embodiment, an information processing apparatus includes a main processor, a secure operating system (OS) module, a non-secure OS module, a secure monitor memory setting module, a timer, and an address space controller. When receiving a notification of an interrupt from the timer, a secure monitor instructs the secure OS module to execute certain processing. The secure OS module is configured to execute certain processing instructed by the secure monitor and store data of a result of the processing in a first memory area.

Information processing apparatus, information processing system, and computer program product

According to one embodiment, an information processing apparatus includes a processor, a main memory, and a memory controller. The memory controller executes an access restriction for each memory region. A first program decodes a protected program which was encrypted in a secure mode. The first program places the protected program which was decoded in a memory region. A second program executes the protected program in a secure mode. The processor places a code region and a protected data region in the protected program which was decoded in a memory region having an access restriction by using the first program. When an access to the protected data region is confirmed, the processor confirms by using the second program that the access is caused by a command from the code region placed by the first program, and then, executes the command.

Information processing apparatus and program execution method

A multi-core processor system includes: a plurality of processor cores; a power supply unit that stops supplying or supplies power to each of the processor cores individually; and a thread queue that stores threads that the multi-core processor system causes the processor cores to execute. Each of the processor cores includes: a power-supply stopping unit that causes the power supply unit to stop power supply to an own processor core when a number of threads stored in the thread queue is equal to or smaller than a first threshold; and a power-supply resuming unit that causes the power supply unit to resume power supply to the other stopped processor cores when the number of threads stored in the thread queue exceeds a second value equal to or lager than the first threshold.

Multi-core processor system with thread queue based power management

A radio communication apparatus determines whether a reception signal is received normally. The apparatus measures strengths of the reception signal, assesses frequency channels using a result whether the reception signal is received normally and a strength of the reception signal, and decides that zero or more of the frequency channels as unusable channel in accordance with a result of an assessment of the frequency channels. The apparatus transmits a radio signal using one of the frequency channels sequentially without using the unusable channel.

Radio communication apparatus and radio communication method

A radio communication terminal network with a tree structure is formed in such a way that a plurality of receiving side terminal devices on a downstream side of a source terminal device are connected to the source terminal device, and other receiving side terminal devices on a further downstream side are connected to at least one of the plurality of the receiving side terminal devices.

Radio communication terminal device and radio communication method for forming radio communication terminal network

A transactional file system configured to realize atomic update of plural files by transactions. In the transactional file system, a log entry containing information for validating all updates made by a transaction collectively on a stable memory device, is generated for one or more files updated on a buffer region by the transaction since a start of a processing of the transaction until a commit of the transaction. Then, the log entry is written into the stable memory device at a time of the commit of the transaction.

Transactional file system for realizing atomic update of plural files by transactions

A scheme for systematically registering meta-data with respect to various types of individual data so as to enable sophisticated retrieval or application program construction assistance utilizing the meta-data in a data server is disclosed. A data type of registering data to be registered into a data server that registers and manages data and meta-data for data, and one procedure corresponding to the detected data type is selected from a plurality of procedures provided in correspondence to respective data types and stored in advance, each procedure having a program code for generating the meta-data for data according to a corresponding data type. Then, the meta-data for the registering data are generated by executing the program code of the selected procedure, and the generated meta-data are registered in relation to the registering data.

Scheme for systematically registering meta-data with respect to various types of data

A scheme for constructing a database in a user system, which can automatically store those portions of the structured documents which contain important contents without exerting a burden on the user is disclosed. A structured document provided by a server device is obtained according to a document request made by the user system, where each structured document has a structure represented by tags in each structured document. Then, at least one important portion is automatically extracted from the structured document by utilizing the structure of the structured document according to prescribed extraction criteria specified in advance, and the extracted important portion is stored into the database, while the obtained structured document is transferred to the user system.

Growing community of inventors

Kanagawa, Japan

Toshiki Kizu