Kabushiki Kaisha Toshiba

Akihiko Sugikawa

Shingo Tanaka

Yasuhiro Morioka

Teruhiko Ukita

Masafumi Umeda

Yoshitomo Tagami

Minoru Sasaki

Yutaka Sata

Makoto Nakamura

Shinya Murai

Toshihiro Morohoshi

Yosuke Tajika

Kazuaki Iwamura

Yuji Ide

Kazuhiro Takashima

Mitsuo Sasuga

Masako Sato

A communication method, including: sending a response signal including terminal information to a portable terminal upon receiving an identification information request; accepting periodically a connection request from the portable terminal during a period not shorter than a second period and three-fold period not longer than the second period, for each period not shorter than the third period and not longer than three-fold period of the third period; establishing a wireless link with the portable terminal upon receiving the connection request; and controlling an execution apparatus for executing a predetermined operation after the link connection establishment unit has established the wireless link.

Communication apparatus, portable terminal and communication control program

The present invention has a cash registerand a Bluetooth portable terminalwhich conduct short-range wireless communication to each other. The cash registerdecreases transmission power during periods when a search request processing and a connection request processing for the Bluetooth portable terminalare conducted, thereby being connected with only a prescribed Bluetooth portable terminal. At the time of providing services, electric power for transmission is increased. Therefore, it is possible to surely connect with the prescribed Bluetooth portable terminal. After connected with the prescribed Bluetooth portable terminal, even if the Bluetooth portable terminalmoves at comparatively broad range, it is possible to provide the Bluetooth portable terminalwith services.

Information providing apparatus, information receiver, information providing program, information receiving program and wireless communication apparatus

A wireless communication device, comprising: a wireless communication unit which communicates with other communication device located at a prescribed range; a first identification information generator which generates first identification information including a service name of available service and inherent information; an encryption unit configured to encrypt said first identification information by using a prescribed encryption key to generate encryption data; a second identification information generator which generates second identification information including the service name, the inherent information and the encryption data; and an inherent information transmitter which transmits the second identification information for an other communication device which has requested transmission of the inherent information.

Wireless communication device, portable terminal, communication control program and communication system

A communication apparatus, including: an identification information request receiver configured to conduct wireless communication a plurality of times without interruption with a portable device; a response transmitter configured to send a response signal including terminal information to the portable terminal when the identification information request receiver has received the identification information request; a connection request receiver configured to periodically accept a connection request from the portable terminal; a link connection establishment unit configured to establish a wireless link with the portable terminal when the connection request receiver has received the connection request; and an execution controller configured to control an execution apparatus for executing a prescribed operation after the link connection establishment unit has established the wireless link.

A service providing apparatus has a first communication unit, a connection information generator, an existence detector, an existence confirmation request receiver, a connection information transmitter, an authentication unit, and a service providing unit. The second communication unit performs wireless communication with the service receiver located in a second wireless area narrower than a first wireless area. The existence confirmation request receiver receives the existence confirmation request signal transmitted by the service receiver through the second communication unit when the service receiver detects to be within a prescribed distance. The service providing unit connects with the service receiver authenticated by the authentication unit, and provides services to the service receiver through the first communication unit.

Service providing apparatus, service providing program and service providing method

In a communication system having a first communication device and a second communication device for carrying out communications by setting up a communication link, the identification code generated at one of the first and second communication devices is presented to the other, and the authentication data are generated by using this identification code at the both of the communication devices, so that the illegal acquisition of the identification code can be prevented and the security performance can be improved.

Short range radio communication system with using improved authentication scheme

In the present invention, a plurality of the communication control apparatus form a group to communicate each other. In each communication control apparatus, a memory section stores at least one data and its discrimination information. When the discrimination information of data to broadcast is inputted through an input section, a retrieval section retrieves the data corresponding to the discrimination information from the memory section. A sending section broadcasts the retrieved data to other communication control apparatuses of the group. A receiving section receives the data broadcasted by other communication control apparatus of the group.

Communication control apparatus and method

The data processing device 400 of this invention comprises a controller unit 402, a data recorder unit 404, a display unit 406, a data input unit 408 and a communication control unit 410. By transmitting a request for service in a multiple-address way to a plurality of devices on a network and selecting a service providing device, communicability with the service-providing group can be automatically obtained without prior registration of device information in the respective devices or in any specified device. If the service providing device withdraws from the network or a trouble develops in the communication link, a new service providing device is selected from among other communicable devices.

Communication device

Communication control apparatus capable of communicating among plural users when the plural users bring respective equipment into proximity of each other includes a transmission section to transmit terminal discriminating information to discriminate a particular terminal. A receiving section receives terminal discriminating information transmitted by another terminal or terminals. A discrimination section discriminates other terminal(s) capable of communicating with the particular terminal in accordance with the terminal discriminating information received by the receiving section. A group-set section sets one terminal or plural terminals among terminals discriminated by the discrimination means as members of the same group. An information sending section sends the same information to the terminals set by the group-set means.

An electronic still camera comprises a solid state image sensor for outputting a color picture signal corresponding an incident optical image, a signal processor for signal-processing the color picture signal from the solid state image sensor to produce a color still picture signal, a recorder for recording the color still picture signal produced by the signal processor, and a driver for moving at least one of the optical image and the solid state image sensor from an original position in a horizontal direction by a pixel pitch and in an oblique axial direction defined by horizontal and vertical lines extending respectively from the original position in the horizontal and vertical directions by half the pixel pitch.

Electronic still camera with improved picture resolution by image

An electronic still camera includes an imaging device, a signal conversion device and a recording device. The imaging device includes a solid state imaging unit and optical color filters of different spectral characteristics arranged on the solid state imaging unit to convert photoelectrically converting the photographed image. The signal conversion device converts a signal from the imaging device into a luminance signal and two color difference signals. The recording device stores image information including the luminance signal and two color difference signals into a semiconductor memory card.

Electronic still camera with various modes of data compression

An electronic still camera has a memory card, which is detachably provided, for recording photographed image data. The electronic still camera comprises a data compression unit for compressing image data to be recorded, a mode selection unit provided in association with the data compression unit to select a recording mode or compression mode, a buffer memory for once storing the image data compressed in the compression mode selected by the mode selection unit, and a determination unit for determining whether or not the image data stored in the buffer memory can be recorded on the recording medium. In the electronic still camera, when the image data was determined to be unrecordable by the determination unit, the image data stored in the memory is stored in the buffer memory till the recording medias assumes a recordable state.

Growing community of inventors

Kanagawa-ken, Japan

Akihiko Sugikawa