COMMUNICATION DEVICE, COMMUNICATION METHOD, PROGRAM AND COMMUNICATION SYSTEM

• US 20100130126A1
• Filed: 11/24/2009
• Published: 05/27/2010
• Est. Priority Date: 11/27/2008
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.), The Procter & Gamble Company
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Takayama, Yoshihisa
• Granted Patent: US 8,965,278 B2
• Time in Patent Office: Days
• US Class Current: 455/41.100
• CPC Class Codes: H04B 5/0031 for data transfer
• CPC Class Codes: H04B 5/0037 for power transfer
• CPC Class Codes: H04B 5/02 using transceiver
• CPC Class Codes: H04B 5/48 Transceivers
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 8/22 Processing or transfer of terminal data, e.g. status or physical capabilities
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A communication device includes: an electromagnetic-wave generating means for outputting an electromagnetic wave; and a transmitting/receiving means for transmitting data by modulating the electromagnetic wave in accordance with data as well as receiving data transmitted from the other device by demodulating the electromagnetic wave outputted by the electromagnetic-wave generating means or the electromagnetic wave outputted by the other device as the other party of communication, wherein the transmitting/receiving means transmits attribute information indicating communication ability of the device itself as well as receives attribute information indicating communication ability of the other device as the data, and the electromagnetic-wave generating means reduces power of the electromagnetic wave to be outputted after receiving the attribute information.

Claims

1. A communication device comprising:

an electromagnetic-wave generating means for outputting an electromagnetic wave; and

a transmitting/receiving means for transmitting data by modulating the electromagnetic wave in accordance with data as well as receiving data transmitted from the other device by demodulating the electromagnetic wave outputted by the electromagnetic-wave generating means or the electromagnetic wave outputted by the other device as the other party of communication,

wherein the transmitting/receiving means transmits attribute information indicating communication ability of the device itself as well as receives attribute information indicating communication ability of the other device as the data, and

the electromagnetic-wave generating means reduces power of the electromagnetic wave to be outputted after receiving the attribute information.

2. The communication device according to claim 1,

wherein, in an active mode in which data is transmitted by modulating the electromagnetic wave in accordance with data as well as data transmitted from the other device is received by demodulating the electromagnetic wave outputted by the other device, the transmitting/receiving means receives data transmitted from the other device by demodulating the electromagnetic wave outputted by the other device with lower power as compared with the power before receiving the attribute information.

3. A communication method in a communication device including an electromagnetic-wave generating means for outputting an electromagnetic wave and a transmitting/receiving means for transmitting data by modulating the electromagnetic wave in accordance with data as well as receiving data transmitted from the other device by demodulating the electromagnetic wave outputted by the electromagnetic-wave generating means or the electromagnetic wave outputted by the other device as the other party of communication, the method comprising:

transmitting attribute information indicating communication ability of the device itself as well as receiving attribute information indicating communication ability of the other device as the data by the transmitting/receiving means; and

reducing power of the electromagnetic wave to be outputted by the electromagnetic-wave generating means after receiving the attribute information.

4. A program allowing a computer to execute processing of

transmitting attribute information indicating communication ability of the device itself as well as receiving attribute information indicating communication ability of the other device as data by the transmitting/receiving means for transmitting data by modulating the electromagnetic wave in accordance with data as well as receiving data transmitted from the other device by demodulating the electromagnetic wave outputted by the electromagnetic-wave generating means or the electromagnetic wave outputted by the other device as the other party of communication, and

reducing power of the electromagnetic wave to be outputted by the electromagnetic-wave generating means after receiving the attribute information.

5. A communication system comprising:

a first communication device; and

a second communication device which is the other party of communication,

wherein the first communication device includes

an electromagnetic-wave generating means for outputting an electromagnetic wave, and

a first transmitting/receiving means for transmitting data by modulating the electromagnetic wave in accordance with data as well as receiving data transmitted from the second communication device by demodulating the electromagnetic wave outputted by the electromagnetic-wave generating means or the electromagnetic wave outputted by the second communication device,

the first transmitting/receiving means transmits attribute information indicating communication ability of the first communication device as well as receives attribute information indicating communication ability of the second communication device as the data,

the electromagnetic-wave generating means reduces power of the electromagnetic wave to be outputted after receiving the attribute information,

the second communication device includes

a second transmitting/receiving means for receiving data transmitted from the first communication device by demodulating the electromagnetic wave outputted by the first communication device as well as transmitting data by modulating the electromagnetic wave outputted by the first communication device or the electromagnetic wave outputted by the device itself in accordance with the data, and

the second transmitting/receiving means receives attribute information indicating communication ability of the first communication device as well as transmits attribute information indicating communication ability of the second communication device as data.

6. A communication device comprising:

an electromagnetic-wave generating unit configured to output an electromagnetic wave; and

a transmitting/receiving unit configured to transmit data by modulating the electromagnetic wave in accordance with data as well as receive data transmitted from the other device by demodulating the electromagnetic wave outputted by the electromagnetic-wave generating unit or the electromagnetic wave outputted by the other device as the other party of communication,

wherein the transmitting/receiving unit transmits attribute information indicating communication ability of the device itself as well as receives attribute information indicating communication ability of the other device as data, and

the electromagnetic-wave generating unit reduces power of the electromagnetic wave to be outputted after receiving the attribute information.

7. A communication system comprising:

a first communication device; and

a second communication device which is the other party of communication,

wherein the first communication device includes

an electromagnetic-wave generating unit configured to output an electromagnetic wave, and

a first transmitting/receiving unit configured to transmit data by modulating the electromagnetic wave in accordance with data as well as receive data transmitted from the second communication device by demodulating the electromagnetic wave outputted by the electromagnetic-wave generating unit or the electromagnetic wave outputted by the second communication device,

the first transmitting/receiving unit transmits attribute information indicating communication ability of the first communication device as well as receives attribute information indicating communication ability of the second communication device as the data,

the electromagnetic-wave generating unit reduces power of the electromagnetic wave to be outputted after receiving the attribute information,

the second communication device includes

a second transmitting/receiving unit configured to receive data transmitted from the first communication device by demodulating the electromagnetic wave outputted by the first communication device as well as transmit data by modulating the electromagnetic wave outputted by the first communication device or the electromagnetic wave outputted by the device itself in accordance with the data, and

the second transmitting/receiving unit receives attribute information indicating communication ability of the first communication device as well as transmits attribute information indicating communication ability of the second communication device as data.