SYSTEM AND METHOD FOR WIRELESS COMMUNICATION OF UNCOMPRESSED VIDEO HAVING CONNECTION CONTROL PROTOCOL

• US 20080129879A1
• Filed: 10/09/2007
• Published: 06/05/2008
• Est. Priority Date: 12/04/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Singh, Harkirat, Shao, Huai-Rong, Ngo, Chiu, Qin, Xiangping
• Granted Patent: US 8,630,312 B2
• Time in Patent Office: Days
• US Class Current: 348/723
• CPC Class Codes: H04L 65/613 for the control of the source by the destination control signals issued by the client directed to the server or network components specially adapted for selective content distribution H04N21/637
• CPC Class Codes: H04L 65/752 adapting media to network capabilities
• CPC Class Codes: H04L 65/756 adapting media to device capabilities
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04N 21/434 Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream demultiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 21/632 using a connection between clients on a wide area network, e.g. setting up a peer-to-peer communication via Internet for retrieving video segments from the hard-disk of other client devices broadcast-related systems characterised by transmission among terminal devices H04H60/80; distributed application using peer-to-peer [P2P] networks H04L67/104
• CPC Class Codes: H04N 21/643 Communication protocols network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP], H04L65/65

Abstract

A system and method for wireless communication of uncompressed audiovisual data are disclosed. One embodiment of the system includes a first device and a second device wirelessly connectable to each other. The first device is configured to transmit a connection control information request from the first device to the second device, wherein the connection control information request includes a request for connection control information of the second device. The connection control information includes at least one of association information, wireless video area network (WVAN) information, device capability information, audio video (A/V) format capability information, bandwidth information, A/V stream start, stop or pause command information, and device control information. The request further includes connection control information of the first device. The second device is configured to transmit a connection control information response from the second device to the first device. The connection control information response includes the connection control information of the second device.

Claims

1. A method of wireless communication of uncompressed audiovisual data, the method comprising:

transmitting at least one connection control information request from a first device to a second device in a wireless communication network, wherein the connection control information request comprises connection control information of the first device, and wherein the connection control information comprises at least one of association information, wireless video area network (WVAN) information, device capability information, audio video (A/V) format capability information, bandwidth information, A/V stream start, stop or pause command information, and device control information;

transmitting at least one connection control information response from the second device to the first device; and

transmitting uncompressed audiovisual data to or from one of the first and second devices.

2. The method of claim 1, wherein the first device is a non-coordinator device, and wherein the second device is a coordinator.

3. The method of claim 2, further comprising generating the connection control information response at the second device, and wherein transmitting the uncompressed audiovisual data comprises transmitting the audiovisual data between the first and second devices.

4. The method of claim 2, further comprising storing the connection control information of the first device at the second device.

5. The method of claim 4, wherein the wireless communication network further comprises a third device which is a non-coordinator device, and wherein the method further comprises transmitting the stored connection control information of the first device to the third device.

6. The method of claim 2, wherein the wireless communication network further comprises a third device which is a non-coordinator device, and wherein transmitting the uncompressed audiovisual data comprises transmitting the audiovisual data between the first and third devices.

7. The method of claim 6, further comprising generating the connection control information response at the second device.

8. The method of claim 6, further comprising:

transmitting the connection control information request from the second device to the third device;

generating the connection control information response at the third device; and

transmitting the connection control information response from the third device to the second device.

9. The method of claim 8, wherein the first device is a sink and wherein the third device is a source.

10. The method of claim 1, wherein the first device is a coordinator, wherein the second device is a non-coordinator device, and wherein transmitting the uncompressed audiovisual data comprises transmitting the audiovisual data between the first and second devices.

11. A wireless communication device for transmission of uncompressed audiovisual data, the device comprising:

means for storing connection control information of the wireless communication device;

means for transmitting uncompressed audiovisual data over a wireless channel to another wireless communication device; and

means for generating a connection control information request over a wireless channel to the other wireless communication device, wherein the connection control information request comprises connection control information of the wireless communication device,

wherein the connection control information comprises at least one of association information, wireless video area network (WVAN) information, device capability information, audio video (A/V) format capability information, bandwidth information, A/V stream start, stop or pause command information, and device control information.

12. A method of wireless communication of uncompressed audiovisual data, the method comprising:

determining whether an originator needs to acquire format information of a destination device directly from the destination device;

exchanging a format information request and a format information response between the originator and the destination device if the originator needs to acquire the format information of the destination device directly from the destination device;

exchanging a connection start request and a connection start response between the originator and the destination device; and

transmitting audiovisual data between the originator and the destination device.

13. The method of claim 12, wherein exchanging the format information request and the format information response comprises:

transmitting the format information request from the originator to the destination device; and

transmitting the format information response from the destination device to the originator in response to the format information request.

14. The method of claim 12, wherein exchanging the connection start request and the connection start response comprises:

transmitting the connection start request from the originator to the destination device; and

transmitting the connection start response from the destination device to the originator in response to the connection start request.

15. The method of claim 14, further comprising reserving a bandwidth for transmitting the audiovisual data after exchanging the format information request and the format information response and before transmitting the connection start response.

16. The method of claim 12, wherein one of the originator and the destination device is a coordinator and the other of the originator and the destination device is a non-coordinator device.

17. The method of claim 12, wherein each of the originator and the destination device is a non-coordinator device.

18. The method of claim 12, wherein the connection start request does not include format information, and wherein the connection start response does not include format information.

19. A wireless communication device for uncompressed audiovisual data, the device being capable of wirelessly communicating with another wireless communication device, the device comprising:

means for determining whether there is a need to acquire format information of the other device directly from the other device;

means for transmitting a format information request to the other device if there is a need to acquire the formation information of the other device directly from the other device;

means for transmitting a connection start request to the other device; and

means for communicating audiovisual data with the other device.

20. The device of claim 19, wherein the device is further configured to initiate reserving a bandwidth for transmitting the audiovisual data.

21. The device of claim 19, wherein the device is a coordinator.

22. The device of claim 19, wherein the device is a non-coordinator device.

23. The device of claim 19, wherein the connection start request does not include format information.