Kabushiki Kaisha Toshiba

Toshiba Electronic Devices & Storage Corporation

International Semiconductor Group

Toshiba Infrastructure Systems & Solutions Corporation

Kiyoshi Toshimitsu

Tomoko Adachi

Tatsuma Hirano

Toshihisa Nabetani

Ryoko Matsuo

Hideo Kasami

Kazumi Sato

Shuichi Obayashi

Takafumi Sakamoto

Hiroki Shoki

Mutsumu Serizawa

Tetsu Nakajima

Kuniaki Ito

Tsuguhide Aoki

Ren Sakata

Minoru Namekata

Hiroshi Tsurumi

Koji Horisaki

Tomoya Horiguchi

Syuichi Sekine

Keiji Tsunoda

Masahiro Takagi

Yoriko Utsunomiya

Kotaro Ise

Eiji Kamagata

Yuzo Tamada

Taku Kato

Hiroshi Isozaki

Ichiro Seto

Yoshinari Kumaki

Seijiro Yoneyama

Hirotsugu Kajihara

Hideaki Nakakita

Toshiki Miyasaka

Katsuya Nounin

Tomoya Tandai

Shoji Otaka

Toshiyuki Umeda

Yoshiaki Takabatake

Akihiro Tsujimura

Nobuyasu Nakajima

Katsumi Yamato

Takeshi Saito

Yasuyuki Tanaka

Akihiro Kasahara

Yasuyuki Nishibayashi

Masataka Goto

Koji Ogura

Masahiro Sekiya

Daisuke Takeda

Shinichi Matsukawa

Hiroki Fukuoka

Tsuyoshi Kogawa

Kohei Onizuka

Koichiro Ban

Hiroshi Suu

Keisuke Mera

Takanobu Ishibashi

Akira Irube

Mitsuru Onodera

Makoto Watanabe

According to an embodiment, an electronic approval system comprising at least one electronic approval device and an electronic approval server. The electronic approval device includes a biometric authentication unit and a security chip. The biometric authentication unit performs biometric authentication. The security chip generates reliability confirmation information using a private key stored in advance if a result of the biometric authentication is normal, and transmits the reliability confirmation information to the electronic approval server via the information processing device. The electronic approval server includes a processor. The processor stores an electronic approval record indicating that approval has been successfully performed in the electronic approval device based on a public key corresponding to the private key and the reliability confirmation information.

Electronic approval system, electronic approval server, and computer-readable storage medium

According to one embodiment, an approval system includes an information processing apparatus and a biometric authentication device. The information processing apparatus includes a first interface and a first processor. The first processor is configured to: receive a sensor signal; when a state satisfying a predetermined condition related to data indicated by the sensor signal occurs, transmit an approval request signal to the biometric authentication device; and perform the countermeasure processing when an approval response signal is received from the biometric authentication device. The biometric authentication device includes a second interface, a storage unit, a biometric sensor, a second processor. The second processor is configured to: cause the biometric sensor to acquire the biometric information when the approval request signal is received; and transmit the approval response signal when the biometric information acquired by the biometric sensor and the biometric information stored in the storage unit are identified with each other.

Approval system

A wireless communication apparatus which can simultaneously conduct communication on at least two frequency channels is described. The apparatus includes a communication unit which refers to a connection management table to determine a communication system which can be used by a wireless communication terminal using an identifier of the wireless communication terminal, and conducts communication with the wireless communication terminal on a second frequency channel using the communication system, when a request from the wireless communication terminal to change the first frequency channel to the second frequency channel is permitted.

Apparatus and method for wireless communication

There is disclosed a notification method in a communication system of notifying specific multifunctionality information between terminal stations. An expansion code is generated from both a user input code and a function identification code corresponding to a specific function. A transmission frame including the expansion code is also generated and transmitted to at least one of the terminal stations.

Method of notifying function identification information and communication system

A wireless communication circuit includes a receiver to receive at least one of a beacon frame and a probe response frame from a first wireless communication apparatus belonging to a first communication group, at least one of the beacon frame and the probe response frame including first security information indicating a first encryption method. The circuit includes a transmitter to transmit an association request frame to the first wireless communication apparatus, the association request frame including second security information indicating a second encryption method which is supported by the wireless communication circuit, after a determination that the second encryption method overlaps with the first encryption method. The transmitter declines to associate with the first wireless communication apparatus if the first encryption method fails to overlap with the second encryption method. The transmitter transmits a data frame including a frame body after a reception of an association response frame.

Communication system, wireless communication apparatus, and communication method

One of a plurality of radio terminals that transmit radio signals to a radio base station under a space multiplexing scheme, including a receiving unit that receives an access right request signal with respect to the radio base station from an other radio terminal, a prevention unit that prevents transmission of radio signals when receiving radio signals directed to an other radio terminal, a cancellation unit that cancels the prevention of transmission when receiving an access right assignment signal during the prevention of transmission and a transmitting unit that transmits a data signal to the radio base station according to the assignment signal, wherein radio signals are transmitted to the radio base station simultaneously with the other radio terminals and under the space multiplexing scheme.

Radio system, radio base station and radio terminal

A wireless communication apparatus includes a transmitter that transmits a first frame and a second frame with multiplexing and a receiver that receives a third frame sent in response to the first frame and a forth frame sent in response to the second frame, wherein a first receipt completion timing at which the third frame is fully received by the receiver and a second receipt completion timing at which the forth frame is fully received by the receiver are synchronized by controlling at least one of first content of the first frame, a first transmission method by which the first frame is sent, second content of the second frame and a second transmission method by which the second frame is sent.

Wireless communication apparatus

A communication device includes a receiver, a transmitter and an interruption module. The receiver receives an allocation signal indicating a first period usable by the communication device and a second period usable by a plurality of communication devices including the communication device. The transmitter transmits a transmission signal in the first period. If the transmission of the transmission signal is completed within the first period, the interruption module interrupts at least a part of power supply to the receiver in the second period. If the transmission of the transmission signal is not completed within the first period and directivity of radio waves used by a second communication device includes a direction of the communication device in a communication period allocated before the second period, the transmitter transmits the transmission signal in the second period.

Communication device

Growing community of inventors

Tokyo, Japan

Kiyoshi Toshimitsu