Method And System For Enabling Video Communication Via Ethernet Utilizing Asymmetrical Physical Layer Operations

• US 20080288995A1
• Filed: 08/31/2007
• Published: 11/20/2008
• Est. Priority Date: 05/14/2007
• Status: Abandoned Application

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Inventors: Diab, Wael, Powell, Scott, Kim, Yong
• Application Number:
  US11/848,507
• Publication Number:
  US 20080288995A1
• Time in Patent Office: Days
• US Class Current: 725/118
• CPC Class Codes: G09G 2370/10 Use of a protocol of communication by packets in interfaces along the display data pipeline
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: H04L 12/2805 Home Audio Video Interoperability [HAVI] networks
• CPC Class Codes: H04L 12/2816 Controlling appliance services of a home automation network by calling their functionalities arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station; in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom H04Q9/00
• CPC Class Codes: H04L 2012/2849 Audio/video appliances
• CPC Class Codes: H04N 19/172 the region being a picture, frame or field
• CPC Class Codes: H04N 19/176 the region being a block, e.g. a macroblock
• CPC Class Codes: H04N 19/61 in combination with predictive coding
• 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 21/43632 involving a wired protocol, e.g. IEEE 1394 high-speed IEEE 1394 serial bus H04L12/40052
• CPC Class Codes: H04N 21/6373 for rate control , e.g. request to the server to modify its transmission rate flow control in packet networks H04L47/10
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 7/106 for domestic distribution
• CPC Class Codes: H04N 9/8042 involving data reduction
• CPC Class Codes: Y02D 30/00 Reducing energy consumption in communication networks

Abstract

Signals may be communicated between a video source and a video rendering device via and asymmetrical multi-rate Ethernet physical layer (PHY). The asymmetric multi-rate PHY may support multiple rates. The asymmetrical multi-rate Ethernet PHY may handle compressed and/or uncompressed, encrypted and/or unencrypted video signals and may handle audio/video bridging. One or more of the communicated signals may be modified by an echo cancellation operation, a near end cross talk (NEXT) cancellation operation, equalization, a far end cross talk (FEXT) cancellation operation and/or a forward error correction (FEC) operation. An aggregate communication rate may be evenly or unevenly distributed among one or more links coupling the video signal source to the video rendering device. A plurality of links coupling the video signal source to said video rendering device may also be aggregrated.

Claims

1. A method for wired communication, the method comprising:

communicating signals between a video signal source and a video rendering device coupled to said video signal source, wherein each of said video signal source and said video rendering device comprises an asymmetric multi-rate Ethernet physical layer (PHY) that handles said communication of said signals.

2. The method according to claim 1, wherein said asymmetric multi-rate Ethernet PHY handles compressed and/or uncompressed video signals.

3. The method according to claim 1, wherein said asymmetric multi-rate Ethernet PHY handles encrypted and/or unencrypted video signals.

4. The method according to claim 1, wherein said asymmetric multi-rate Ethernet PHY handles data with quality of service requirements.

5. The method according to claim 4, wherein said quality of service is provided by AV bridging.

6. The method according to claim 1, comprising reducing a communication rate of said signals communicated between said video signal source and said video rendering device from a higher symbol rate to a lower symbol rate.

7. The method according to claim 1, comprising modifying one or more of said communicated signals via at least one of an echo cancellation operation, a near end cross talk (NEXT) cancellation operation, a far end cross talk (FEXT) cancellation operation and a forward error correction (FEC) operation.

8. The method according to claim 1, comprising equalizing video signals communicated from said video signal source to said video rendering device.

9. The method according to claim 1, comprising distributing an aggregate communication rate evenly or unevenly among one or more links coupling said video signal source to said video rendering device.

10. The method according to claim 9, comprising time aligning said communication of said signals among one or more links coupling said video signal source to said video rendering device.

11. The method according to claim 9, comprising aggregating a plurality of links coupling said video signal source to said video rendering device.

12. The method according to claim 1, comprising communicating said signals between said video signal source and a plurality of video rendering devices comprising said asymmetric multi-rate Ethernet PHY.

13. A system for wired communication, the system comprising:

one or more circuits that enable communicating signals between a video signal source and a video rendering device coupled to said video signal source, wherein each of said video signal source and said video rendering device comprises an asymmetric multi-rate Ethernet physical layer (PHY) that handles said communication of said signals.

14. The system according to claim 13, wherein said asymmetric multi-rate Ethernet PHY handles compressed and/or uncompressed video signals.

15. The system according to claim 13, wherein said asymmetric multi-rate Ethernet PHY handles encrypted and/or unencrypted video signals.

16. The system according to claim 13, wherein said asymmetric multi-rate Ethernet PHY handles data with quality of service requirements.

17. The system according to claim 16, wherein said quality of service is provided by audio visual (AV) bridging.

18. The system according to claim 13, wherein said one or more circuits reduces a communication rate of said signals communicated between said video signal source and said video rendering device from a higher symbol rate to a lower symbol rate.

19. The system according to claim 13, wherein said one or more circuits modifies one or more of said communicated signals via at least one of an ECHO cancellation operation, a NEXT cancellation operation, a FEXT cancellation operation and a FEC operation.

20. The system according to claim 13, wherein said one or more circuits enables equalization of video signals communicated from said video signal source to said video rendering device.

21. The system according to claim 13, wherein said one or more circuits enables distribution of an aggregate communication rate evenly or unevenly among one or more links coupling said video signal source to said video rendering device.

22. The method according to claim 21, comprising time aligning said communication of said signals among one or more links coupling said video signal source to said video rendering device.

23. The system according to claim 21, wherein said one or more circuits enables aggregation of a plurality of links coupling said video signal source to said video rendering device.

24. The method according to claim 13, comprising communicating said signals between said video signal source and a plurality of video rendering devices comprising said asymmetric multi-rate Ethernet PHY.

25. A machine-readable storage having stored thereon, a computer program having at least one code section for wired communication, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

communicating signals between a video signal source and a video rendering device coupled to said video signal source, wherein each of said video signal source and said video rendering device comprises an asymmetric multi-rate Ethernet physical layer (PHY) that handles said communication of said signals.

26. The machine-readable storage according to claim 25, wherein said asymmetric multi-rate Ethernet PHY handles compressed and/or uncompressed video signals.

27. The machine-readable storage according to claim 25, wherein said asymmetric multi-rate Ethernet PHY handles encrypted and/or unencrypted video signals.

28. The machine-readable storage according to claim 25, wherein said asymmetric multi-rate Ethernet PHY handles data with quality of service requirements.

29. The machine-readable storage according to claim 28, wherein said quality of service is provided by AV bridging.

30. The machine-readable storage according to claim 25, wherein said at least one code section comprises code for reducing a communication rate of said signals communicated between said video signal source and said video rendering device from a higher symbol rate to a lower symbol rate.

31. The machine-readable storage according to claim 25, wherein said at least one code section comprises code for modifying one or more of said communicated signals via at least one of an echo cancellation operation, a near end cross talk (NEXT) cancellation operation, a far end cross talk (FEXT) cancellation operation, and a forward error correction (FEC) operation.

32. The machine-readable storage according to claim 25, wherein said at least one code section comprises code for equalizing video signals communicated from said video signal source to said video rendering device.

33. The machine-readable storage according to claim 25, wherein said at least one code section comprises code for distributing an aggregate communication rate evenly or unevenly among one or more links coupling said video signal source to said video rendering device.

34. The method according to claim 33, comprising time aligning said communication of said signals among one or more links coupling said video signal source to said video rendering device.

35. The machine-readable storage according to claim 33, wherein said at least one code section comprises code for aggregating a plurality of links coupling said video signal source to said video rendering device.

36. The method according to claim 25, comprising communicating said signals between said video signal source and a plurality of video rendering devices comprising said asymmetric multi-rate Ethernet PHY.