Kabushiki Kaisha Toshiba

Noritaka Deguchi

Ren Sakata

Koji Akita

Koichiro Ban

Tomoya Tandai

Toshihisa Nabetani

Masahiro Takagi

Yasuyuki Nishibayashi

Kazuhiro Inoue

Hiroyoshi Haruki

Hiroki Shoki

Takeshi Tomizawa

Hiroki Kudo

Daisuke Takeda

Jun Kanai

Makoto Higaki

Yusuke Doi

Tatsuma Hirano

Tomoya Horiguchi

Tsuyoshi Kogawa

Tazuko Tomioka

Fumihiko Sano

Shinsuke Watanabe

Takahiro Kobayashi

Kaoru Inoue

Yoichi Morishima

Takahiro Sekiguchi

Tatsuya Uehara

Fumiaki Kanayama

Ikuya Aoyama

Jun Mitsugi

Masakuni Akashi

Mitsuaki Suzuki

Shuji Sato

Michio Kanayama

Masahiro Yamazaki

An information processing apparatus has a deployment unit configured to deploy an image file and to create files used for a virtual environment, a virtual environment creator configured to create the virtual environment using the files, a recorder configured to record information about a first file included in the files, a manager configured to access the first file stored in the virtual environment and to determine, based on information acquired by accessing the first file, whether to execute software whose execution was detected in the virtual environment, and a normality determinator configured to determine, based on a difference between information acquired by accessing the first file and information about the recorded first file, whether the first file is normal.

Information processing apparatus, information processing method, and recording medium

A wireless communication system includes a first tag installed on a ground outside a track for a running train, the first tag being driven by wirelessly received power, a second tag installed outside a side face of the train and above the first tag, the side face extending in a running direction, the second tag being driven by wirelessly received power, a wireless communicator which is installed in the train and performs wireless communication with the first tag and the second tag, and an antenna which is installed in the train and has a gain in directions of the first tag and the second tag.

Wireless communication system and wireless communication apparatus

An aspect of the invention provides a wireless communication apparatus that includes a generator configured to generate modulated signals; a mapping unit configured to map the modulated signals on at least one subcarrier in a frequency domain, the subcarrier being in a first subcarrier group corresponding to one of a plurality of subcarrier groups, wherein frequencies of the subcarrier mapped by the mapping unit is predefined by a pattern with slot, each slot including symbols in a time domain, the predefined pattern of the frequencies of each slot depending on a base station; and a transmitter configured to transmit the modulated signals mapped by the mapping unit.

Wireless communication apparatus and wireless communication method

An energy management device includes a measurement manager and a communicator. The measurement manager manages energy information based on a physical quantity measured from at least one measurement object belonging to each of a plurality of energy types in a customer. The communicator communicates the energy information of each of the energy types to another device over a network.

Energy management device, energy management system, and energy management method

A wireless communication apparatus (a) generates a transmission symbol; (b) assigns, to the transmission symbol, a given number of units each formed of a symbol and a subcarrier in a frame which is formed of M (M is a positive integer) symbols and N (N is a positive integer) subcarriers and includes M&#xd7;N units, and the given number being not more than M&#xd7;N, to obtain the given number of identical transmission symbols; (c) multiplies the identical transmission symbols by a code sequence including a plurality of different elements; and (d) transmits the identical transmission symbols multiplied by the code sequence.

Wireless communication apparatus, wireless communication system, and transmission method

According to one embodiment, a wireless terminal communicates with a server via wireless base stations. The wireless terminal has devices which transmit a signal in a normal-power transmission mode and the signal in a low-power transmission mode, a power control device which switches the normal-power transmission mode to the low-power transmission mode, or vice versa, and a device which transmits current position data to the server. The server detects the position of the wireless terminal, designates one of the base stations which is close to the wireless terminal, when the wireless terminal is set to the low-power transmission mod, and detects whether the base station designated has a problem or not according to detect the signal from the wireless terminal.

Wireless communication system and wireless communication apparatus, both for use in broadcast wireless transmission

According to one embodiment, a transmitting apparatus includes a generation unit, a division unit, an imparting unit and a transmitting unit. The generation unit generates first control information in accordance with a first information format. The division unit divides the first control information into control information pieces in accordance with information format divisions into which the first information format is divided and which include respective pointer regions, each of the information format divisions having a same data length as a second information format. The imparting unit imparts, to the pointer region of each of the information format divisions, a pointer indicating a wireless communication resource used to transmit one of the control information pieces corresponding to one of the information format divisions other than the each control information format division. The transmitting unit transmits the control information pieces.

Transmitting apparatus and receiving apparatus

There is provided a radio power transmitting apparatus including: a power transmitting coil, a band signal generating unit, a reflected signal measuring unit, an oscillator and a communication control unit. The coil is supplied with a signal and transmits the signal to a power receiving coil on a radio power receiving apparatus through magnetic coupling. The generating unit generates a band signal having an allowable transmission band and supplies the band signal to the power transmitting coil. The reflected signal measuring unit measures a reflected signal of the band signal from the power transmitting coil. The oscillator generates a carrier signal having a controllable oscillating frequency. The control unit determines a transmission frequency based on a frequency characteristic of the reflected signal and performs control so that a transmission signal generated by modulating the carrier signal of the transmission frequency is supplied to the power transmitting coil.

Radio power transmitting apparatus and radio power transmitting system

Broadcast data is divided into a plurality of broadcast channels. Any of the plurality of broadcast channels is placed on a predetermined subcarrier in each of a plurality of main bands such that the placed broadcast channels differ from each other in a same frame and are consecutive in a predetermined order in a frame direction. The subcarriers are converted into a transmit RF signal and the transmit RF signal is transmitted.

Wireless communication device

A radio transmitting apparatus includes a storage unit configured to store a plurality of weight sequence sets, which are each assigned to a plurality of transmission blocks sectioned by time axes and frequency axes, by associating the plurality of weight sequence sets with the plurality of transmission blocks, a first selecting unit configured to select one transmission block from the plurality of transmission blocks, a second selecting unit configured to select one weight sequence from one weight sequence set assigned to the one transmission block signal, a converting unit configured to convert a data signal by using the one weight sequence to generate a converted signal, and a transmitting unit configured to transmit the converted signal by using the one transmission block.

Radio transmitting method and apparatus, and radio receiving method and apparatus

A radio communication method includes generating a first transmit RF signal and a second transmit RF signal from a data signal to be transmitted. Each of the first and second transmit RF signals have a power spectrum in symmetric shape in the frequency domain. The first transmit RF signal and the second transmit RF signal are transmitted at a different time. The first transmit RF signal and the second transmit RF signal are received to generate a first received RF signal and a second received RF signal. The data signal from the first received RF signal and the second received RF signal are reproduced.

Radio communication method, radio transmission apparatus and receiving apparatus

A terminal station radio communication device belongs to a second radio communication system which shares a frequency channel with a first radio communication system in which a radio terminal station communicates with a radio base station in a predetermined time period using a predetermined frequency channel. The terminal station radio communication device includes: a transmission power determining unit which sets up signal transmission power, the signal transmission power being usable for communications between radio communication devices belonging to the second radio communication system, and being determined such that reception power at the radio base station is below a predetermined threshold; a synchronizer enabling the radio terminal station to obtain timing information to start signal transmission; and a signal transmitter starting transmitting the signal at the timing represented by the timing information and terminating the signal transmission within a predetermined time period.

Terminal station radio communication device, based station radio communication device, radio communication device, radio communication method, and radio communication program

A frequency band FC assigned to a first wireless communication system and the frequency bands F, . . . , Fm assigned to a second wireless communication system are set up for a base station apparatus. The base station apparatusperiodically performs a frequency detection process A to detect whether or not the frequency bands F, . . . , Fm are usable for the communication with a mobile station. When the base station apparatusand the mobile stationare communicating, the base station apparatus determines whether or not the frequency band used for the communication should be changed from FC to F, . . . , Fm in accordance with its communication status. If it is determined that the frequency band should be changed, the frequency band used for the communication is changed to the frequency band determined as usable through the frequency detection process A.

Growing community of inventors

Yokohama, Japan

Noritaka Deguchi