Transmission/reception apparatus, transmission/reception method, and transmission/reception system

• US 20040252715A1
• Filed: 04/13/2004
• Published: 12/16/2004
• Est. Priority Date: 10/16/2001
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Igarashi, Tatsuya, Sato, Makoto, Noda, Takuro
• Granted Patent: US 6,968,399 B2
• Time in Patent Office: Days
• US Class Current: 370/444
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 69/24 Negotiation of communication capabilities
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 80/00 Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

Information on the protocols supported by a target device and the address thereof are acquired by a simple operation, and communication is performed using a supported protocol. A device (1) 1 includes: a non-contact IC interface 2, which requests supported protocol information 8 of a device (2) 4 within a predetermined communication area in a network, and which acquires supported protocol information 8 from the device (2) 4; an IEEE 802.11b interface 3, which performs transmission signal processing and reception signal processing; test communication element, which performs test communication using the IEEE 802.11b interface 3; and communication element which, when test communication using the test communication element is possible, performs communication using a protocol of the protocol information 8 acquired by the protocol acquisition element.

Claims

1-7. -7. (Canceled).

8. A transmission and reception device, which performs transmission signal processing of input signals to transmit the signals from a transmission device within a network, and performs reception signal processing of signals received in a reception device within said network to output the signals, comprising:

protocol request means, which requests supported protocol information of a reception device within a predetermined communication area in said network;

protocol acquisition means, which acquires supported protocol information from said reception device;

two or more interface means, which perform said transmission signal processing and reception signal processing;

test communication means, which performs test communication using said interface means; and

,

communication means, which, when test communication by said test communication means is possible, performs communication using a protocol of the protocol information acquired by said protocol acquisition means.

9. The transmission and reception device according to claim 8, wherein information is provided for a plurality of said protocols, associated with priorities.

10. The transmission and reception device according to claim 8, wherein switching can be performed from said protocols with high priorities to said protocols with lower priorities.

11. A transmission and reception method, which performs transmission signal processing of input signals to transmit the signals from a transmission device within a network, and performs reception signal processing of signals received in a reception device within said network to output the signals, comprising:

a protocol request step of requesting supported protocol information of a reception device within a predetermined communication area in said network;

a protocol acquisition step of acquiring supported protocol information from said reception device;

two or more interface steps of performing said transmission signal processing and reception signal processing;

a test communication step of performing test communication using said interface steps; and

,

a communication step of, when test communication by said test communication step is possible, performing communication using a protocol of the protocol information acquired by said protocol acquisition step.

12. The transmission and reception method according to claim 11, wherein information is provided for a plurality of said protocols, associated with priorities.

13. The transmission and reception method according to claim 11, wherein switching can be performed from said protocols with high priorities to said protocols with lower priorities.

14. A transmission and reception system, which performs transmission signal processing of input signals to transmit the signals from a transmission device within a network, and performs reception signal processing of signals received in a reception device within said network to output the signals, comprising:

a transmission device, having

protocol request means, which requests supported protocol information of a reception device within a predetermined communication area in said network;

protocol acquisition means, which acquires supported protocol information from said reception device;

two or more interface means, which perform said transmission signal processing and reception signal processing;

test communication means, which performs test communication using said interface means; and

communication means, which, when test communication by said test communication means is possible, performs communication using a protocol of the protocol information acquired by said protocol acquisition means; and

a reception device, having

storage means, which stores supported protocol information;

protocol transfer means, which transfers supported protocol information to a transmission device within a predetermined communication area of said network;

two or more interface means, which perform said transmission signal processing and reception signal processing; and

communication means, which performs communication using a protocol of the protocol information stored in said storage means.