Sony Corporation

Quadrac Co., Ltd.

Sony Ericsson Mobile Communications Japan, Inc.

Susumu Kusakabe

Masayuki Takada

Yoshihisa Takayama

Fumio Kubono

Yoshihito Ishibashi

Tadashi Morita

Masachika Sasaki

Kunihide Fujii

Kazushige Tsurumi

Katsuyuki Tanaka

Hiroshi Abe

Mamoru Suzuki

Shigeru Arisawa

Shinako Matsuyama

Yuji Murayama

Nishiki Mizusawa

Masanobu Sato

Hideaki Watanabe

Yuko Yoshida

Motoki Nakade

Akira Iga

Isao Yamada

Shoji Nagai

Takaki Nakazawa

Minoru Handa

Ryo Ochi

Tomonori Nagano

Keiichi Nanbu

Tadashi Moriya

Kunihide Fuji

A communication system, a communication apparatus, a communication method, and a program for acquiring the advantage of a plurality of communication protocols is provided. A random number and a first communication information including first identification information of a communication apparatus is sent to another communication apparatus by using near field communication. Second communication information is received by the communication apparatus from the other communication apparatus by using near field communication. The second communication information includes second identification information of the other communication apparatus necessary to a second communication. The second communication is performed between the communication apparatus and the other communication apparatus by using the second communication information received by using the near field communication.

Electromagnetic wave communication system, apparatus, method and program

Provided is a communication system in which one transmission path is shared by a plurality of communication devices, wherein the plurality of communication devices each includes a transmitter that repeatedly transmits one packet to the transmission path with a period of the communication device until a prescribed condition is satisfied, and a receiver that integrates a signal on the transmission path over a period of another communication device until a prescribed condition is satisfied.

Communication system and communication device

A communication apparatus is provided and including a carrier wave generator configured to generate a first electromagnetic wave; a modulator configured to modulate the first electromagnetic wave for transmitting a first message to a first communication device; a load modulator configured to modulate a second electromagnetic wave generated by the first communication device for transmitting a second message to the first communication device; a controller configured to control the communication apparatus to: transmit the first message when the second electromagnetic wave is not detected and, transmit the second message when the second electromagnetic wave is detected. A communication method is also provided.

A communication system and communication method enable various types of near field communication. NFC communication apparatuses have two features in that each can perform communication in two communication modes and that each can perform data transmission at a plurality of transfer rates. The two communication modes consist of a passive mode and an active mode. In the passive mode, between the NFC communication apparatuses, for example, a first NFC communication apparatus transmits data to a second NFC communication apparatus by modulating electromagnetic waves generated by itself, while the second NFC communication apparatus transmits data to the first NFC communication apparatus by performing load modulation on the electromagnetic waves generated by the first NFC communication apparatus. Alternatively, in the active mode, either of the NFC communication apparatuses transmits data by modulating electromagnetic waves generated by itself. The present innovation can be applied to, for example, an IC card system, etc.

Communication system, communication method, and data processing apparatus

Provided is a non-contact communication apparatus which uses a conventional IC chip without any change, while eliminating the need to transmit power to the IC chip and allowing an increase in communication range. A non-contact communication apparatus connectable to an IC chip includes an antenna section, a first detection section that retrieves a first detection signal from a signal received by the antenna section, an amplitude modulating section that amplitude-modulates a clock signal using the first detection signal retrieved by the first detection section and that inputs the amplitude-modulated signal to the IC chip, a second detection section that retrieves a second detection signal from an output signal from the IC chip, a load modulating section that load-modulates a carrier retrieved from the antenna section using the second detection signal retrieved by the second detection section and that inputs the load-modulated carrier to the antenna section, and a power supply section.

Non-contact communication apparatus

Communication system, communication apparatus and communication method as well as program

Near field communication using available protocol information

A radio communication system whereby a range is enabled and communication control and quality can be ideally maintained even if the communication distance changes. The transmitting apparatus has a transmitting unit that repeatedly transmits one data packet; a receiving unit that repeatedly receives a response packet; an integrating unit that integrates a repeatedly received response packet; and a determining unit that determines, by use of a result of the integration, whether the received response packet is correct. The receiving apparatus has a receiving unit that repeatedly receives a data packet; an integrating unit that integrates a repeatedly received data packet; a determining unit that determines, by use of a result of the integration, whether the received data packet is correct; and a transmitting unit that repeatedly transmits the response packet when determination is made that the received data packet is correct.

Radio communication system, transmitting apparatus, receiving apparatus, receiving method and transmitting method

The present invention relates to a device and a method for communication, and a program that make it possible to provide a communication environment not limited by a use environment. An electrode controlling unit in a transmitting device checks a state of capacitive coupling of each of an electrode and an electrode in an electrode unit with surroundings, controls connection of each electrode to a transmitting unit according to a result of the check, and makes the electrode and the electrode function as a transmission signal electrode or a transmission reference electrode, the transmission signal electrode and the transmission reference electrode being different from each other. The transmitting unit connects the electrode and the electrode to an amplifying unit under control of the electrode controlling unit, and transmits a signal to a communication medium via one of the electrodes. The present invention is applicable to communication systems.

Communication device and method, and program

A communication device for performing communication with another communication device via a communication medium includes an obtaining unit for obtaining first attribute information which is information relating to a function and a usage of the other communication device, a setting unit for performing setting of the communication based on the first attribute information obtained by the obtaining unit, and a control unit for controlling the communication based on the setting results of the communication performed by the setting unit.

Communication system, communication device and method, and program

An electronic money system includes a plurality of electronic money terminals for withdrawing a sum of money which is spent by a user from money data which has been deposited into an information card. Utilization-history data including the number of times the information card has been utilized, and accumulated in the information card is read out at the time when data relating to the spent money is also withdrawn from the information card. Utilization-history data read out from each of the electronic money terminals are gathered and coordinated, so as to coordinate and tabulate the utilization-histories of the information card which has been utilized on any of the plurality electronic money terminals.

Electronic money system, electronic money terminal device, and information card

Growing community of inventors

Tokyo, Japan

Susumu Kusakabe