Method for buffering video, data and voice signals using a common shared bus

• US 20010005908A1
• Filed: 01/16/2001
• Published: 06/28/2001
• Est. Priority Date: 09/28/1998
• Status: Abandoned Application

• Current Assignee: Coax Corporation
• Original Assignee: Coax Corporation
• Inventors: Hodge, Winston W., Darnall, William H.
• Application Number:
  US09/761,208
• Publication Number:
  US 20010005908A1
• Time in Patent Office: Days
• US Class Current: 725/121
• CPC Class Codes: H04L 12/2801 Broadband local area networks
• CPC Class Codes: H04N 21/2221 being a cable television head-end CATV in broadcast systems H04H20/78
• CPC Class Codes: H04N 21/26616 for merging a unicast channel into a multicast channel, e.g. in a VOD application, when a client served by unicast channel catches up a multicast channel to save bandwidth data multicast over packet-switching network H04L12/18
• CPC Class Codes: H04N 21/2665 Gathering content from different sources, e.g. Internet and satellite
• CPC Class Codes: H04N 21/6106 specially adapted to the downstream path of the transmission network
• CPC Class Codes: H04N 21/6175 involving transmission via Internet broadcast-related systems characterised by the transmission system being the Internet H04H60/82
• CPC Class Codes: H04N 7/17336 Handling of requests in head-ends

Abstract

The present invention provides a method for combining a plurality of digital video signals, a plurality of digital data signals, a plurality of voice signals, and a plurality of upstream communications within a digital broadband headend. This digital broadband headend uses a common shared bus to optimize the resources used on a digital headend. More particularly, the method comprises providing a video interface for receiving the plurality of digital video signal, providing a data interface for receiving the plurality of digital data signals, and providing a voice interface for receiving the plurality of voice signals. The method then proceeds to process the plurality of digital video signals, digital data signals and voice signals. After this processing is completed by the digital headend, the plurality of digital video signals is communicated to at least one smart network interface module which is configured to buffer the plurality of digital video signals. Additionally, the plurality of digital data signals is also buffered with at least one smart network interface module. Further still, the plurality of voice signals is also buffered with the at least one smart network interface module. The method then provides for communicating said buffered plurality of digital video signals, said buffered plurality of digital data signals, said buffered plurality of voice signals, and said plurality of upstream communications across a common shared bus.

Claims

1. A method for combining a plurality of digital video signals, a plurality of digital data signals, and a plurality of upstream communications in a digital headend, comprising:

providing a video interface for receiving said plurality of digital video signals within said digital headend;

providing a data interface for receiving said plurality of digital data signals within said digital headend;

providing an upstream communications interface for receiving said plurality of upstream communications within said digital headend;

buffering said plurality of digital video signals within said digital headend;

generating a buffered plurality of digital video signals;

buffering said plurality of digital data signals within said digital headend;

generating a buffered plurality of digital data signals; and

communicating said buffered plurality of digital video signals, said buffered plurality of digital data signals, and said plurality of upstream communications across a common shared bus.

2. The method of

claim 1

further comprising, generating said plurality of upstream communications with at least one set-top box.

3. The method of

claim 2

further comprising, generating said plurality of upstream communication with a distribution system.

4. The method of

claim 2

further comprising optimizing communications for said buffered plurality of digital video signals, said buffered plurality of digital data signals, and said plurality of upstream communications across said common shared bus.

5. The method of

claim 4

further comprising digitally processing said plurality of digital video signals prior to buffering said plurality of digital video signals.

6. The method of

claim 5

further comprising digitally processing said plurality of digital data signals prior to buffering said plurality of digital data signals.

17. The method of

claim 4

further comprising digitally processing said plurality of digital video signals prior to buffering said plurality of digital video signals.

18. The method of

claim 5

further comprising digitally processing said plurality of voice signals prior to buffering said plurality of voice signals.

7. A method for combining a plurality of digital data signals, a plurality of voice signals, and a plurality of upstream communications in a digital headend, comprising:

providing a data interface for receiving said plurality of digital data signals within said digital headend;

providing a voice interface for receiving said plurality of voice signals within said digital headend;

providing an upstream communications interface for receiving said plurality of upstream communications within said digital headend;

buffering said plurality of digital data signals within said digital headend;

generating a buffered plurality of digital data signals;

buffering said plurality of voice signals within said digital headend;

generating a buffered plurality of voice signals; and

communicating said buffered plurality of digital data signals, said buffered plurality of voice signals, and said plurality of upstream communications across a common shared bus.

8. The method of

claim 7

further comprising, generating said plurality of upstream communications with at least one set-top box.

9. The method of

claim 8

further comprising, generating said plurality of upstream communication with a distribution system.

10. The method of

claim 8

further comprising optimizing communications for said buffered plurality of digital data signals, said buffered plurality of voice signals, and said plurality of upstream communications across said common shared bus.

11. The method of

claim 10

further comprising digitally processing said plurality of digital data signals prior to buffering said plurality of digital data signals.

12. The method of

claim 11

further comprising digitally processing said plurality of voice signals prior to buffering said plurality of voice signals.

13. A method for combining a plurality of digital video signals, a plurality of voice signals, and a plurality of upstream communications in a digital headend, comprising:

providing a video interface for receiving said plurality of digital video signals within said digital headend;

providing a voice interface for receiving said plurality of voice signals within said digital headend;

providing an upstream communications interface for receiving said plurality of upstream communications within said digital headend;

buffering said plurality of digital video signals within said digital headend;

generating a buffered plurality of digital video signals;

buffering said plurality of voice signals within said digital headend;

generating a buffered plurality of voice signals; and

communicating said buffered plurality of digital video signals, said buffered plurality of voice signals, and said plurality of upstream communications across a common shared bus.

14. The method of

claim 13

further comprising, generating said plurality of upstream communications with at least one set-top box.

15. The method of

claim 14

further comprising, generating said plurality of upstream communication with a distribution system.

16. The method of

claim 14

further comprising optimizing communications for said buffered plurality of digital video signals, said buffered plurality of voice signals, and said plurality of upstream communications across said common shared bus.

19. A method for combining a plurality of digital video signals, a plurality of digital data signals, a plurality of voice signals, and a plurality of upstream communications within a digital headend, comprising:

providing a video interface for receiving said plurality of digital video signals within a digital headend;

providing a data interface for receiving said plurality of digital data signals within a digital headend;

providing a voice interface for receiving said plurality of voice signals within a digital headend;

providing an upstream communications interface for receiving said plurality of upstream communications within said digital headend;

buffering said plurality of digital video signals within said digital headend;

generating a buffered plurality of digital video signals;

buffering said plurality of digital data signals within said digital headend;

generating a buffered plurality of digital data signals;

buffering said plurality of voice signals within said digital headend;

generating a buffered plurality of voice signals; and

communicating said buffered plurality of digital video signals, said buffered plurality of digital data signals, said buffered plurality of voice signals, and said plurality of upstream communications across a common shared bus.

20. The method of

claim 19

further comprising, generating said plurality of upstream communications with at least one set-top box.

21. The method of

claim 20

further comprising, generating said plurality of upstream communication with a distribution system.

22. The method of

claim 20

further comprising optimizing communications for said buffered plurality of digital video signals, said buffered plurality of digital data signals, said buffered plurality of voice signals and said plurality of upstream communications across said common shared bus.

23. The method of

claim 22

further comprising digitally processing said plurality of digital video signals prior to buffering said plurality of digital video signals.

24. The method of

claim 23

further comprising digitally processing said plurality of digital data signals prior to buffering said plurality of digital data signals.

25. The method of

claim 24

further comprising digitally processing said plurality of voice signals prior to buffering said plurality of voice signals.

26. A method for combining a plurality of digital video signals, a plurality of digital data signals, a plurality of voice signals, and a plurality of upstream communications within a digital headend, comprising:

providing a video interface for receiving said plurality of digital video signals within said digital headend;

providing a data interface for receiving said plurality of digital data signals within said digital headend;

providing a voice interface for receiving said plurality of voice signals within said digital headend;

providing an upstream communications interface for receiving said plurality of upstream communications wherein said plurality of upstream communications are generated by least one set-top box.

digitally processing said plurality of digital video signals within said digital headend;

digitally processing said plurality of digital data signals within said digital headend;

digitally processing said plurality of voice signals within said digital headend;

buffering said plurality of digital video signals within said digital headend;

generating a buffered plurality of digital video signals;

buffering said plurality of digital data signals within said digital headend;

generating a buffered plurality of digital data signals;

buffering said plurality of voice signals within said digital headend;

generating a buffered plurality of voice signals; and

communicating said buffered plurality of digital video signals, said buffered plurality of digital data signals, said buffered plurality of voice signals, and said plurality of upstream communications across a common shared bus.

27. The method of

claim 26

further comprising optimizing communications for said buffered plurality of digital video signals, said buffered plurality of digital data signals, said buffered plurality of voice signals and said plurality of upstream communications across said common shared bus.

28. The method of

claim 26

further comprising, generating said plurality of upstream communication with a distribution system.