System and method for using a plurality of processors to support a media conference

• US 7,385,940 B1
• Filed: 12/15/1999
• Issued: 06/10/2008
• Est. Priority Date: 12/15/1999
• Status: Expired due to Fees

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Kwong, Kai C., Harrow, Joseph C., Le, Son H. P., Ju, Ken J.
• Primary Examiner(s): Pham; Chi
• Assistant Examiner(s): MEW, KEVIN D
• Application Number:
  US09/465,236
• Time in Patent Office: 3,100 Days
• Field of Search: 370/260, 370/261, 370/262, 370/263, 370/264, 370/265, 370/266, 370/267, 370/268, 370/269, 370/356, 370/352, 370/271, 709/204, 709/250, 379/201, 379/202.01, 379/203.01, 379/205.1
• US Class Current: 370/267
• CPC Class Codes: G06F 15/16 Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs coordinating program control therefor G06F9/52; in regulating and control system G05B
• CPC Class Codes: G06F 9/5027 the resource being a machine, e.g. CPUs, Servers, Terminals
• CPC Class Codes: H04L 12/1827 Network arrangements for conference optimisation or adaptation
• CPC Class Codes: H04N 7/15 Conference systems

Abstract

A system for using a plurality of processors to support a media conference includes a mixing processor and a first media transformation processor coupled to the mixing processor. The mixing processor mixes input media information associated with two or more first participants to generate output media information for communication to a second participant. The first media transformation processor receives the output media information from the mixing processor, encodes the output media information to generate an output data stream, and communicates the output data stream to the second participant'"'"'s end-user device.

Claims

1. An apparatus for using a plurality of processors to support a media conference, comprising:

a system resource management (SRM) module coupled to one or more mixing processors and a plurality of media transformation processors, the SRM module operable to receive a request to support a media conference and, in response, to allocate the media conference to at least a first mixing processor and a first media transformation processors the SRM module further operable to communicate to the mixing processor control information identifying the first media transformation processor;

wherein the first mixing processor is operable to mix input media information associated with two or more first participants to generate output media information for communication to a second participant, wherein the first mixing processor communicates the output media information to the first media transformation processor identified by the control information received from the SRM module;

wherein the first media transformation processor is coupled to the mixing processor and operable to receive the output media information from the mixing processor, to encode the output media information to generate an output data stream, and to communicate the output data stream to the second participant'"'"'s end-user device;

wherein the mixing processor and the first media transformation processor are separate hardware components.

2. The apparatus of claim 1, further comprising a second media transformation processor coupled to the first mixing processor, the second media transformation processor operable to receive an input data stream from a first participant'"'"'s end-user device, to decode the input data stream to generate input media information associated with the first participant, and to communicate the input media information associated with the first participant to the first mixing processor.

3. The apparatus of claim 1, wherein the first media transformation processor is further operable to receive an input data stream from the second participant'"'"'s end-user device, to decode the input data stream to generate input media information associated with the second participant, and to communicate the input media information associated with the second participant to the first mixing processor.

4. The apparatus of claim 1, wherein the first mixing processor is further operable to receive an input data stream from a first participant'"'"'s end-user device and to decode the input data stream to generate input media information associated with the first participant.

5. The apparatus of claim 1, wherein the first mixing processor and the first media transformation processor are separate integrated circuits.

6. The apparatus of claim 1, wherein the first mixing processor and the first media transformation processor are separate digital signal processors (DSPs).

7. The apparatus of claim 1, wherein the media conference is a voice telephone conference and the media information is voice information.

21. The apparatus of claim 1, wherein

the SRM module is further operable to allocate the media conference to a second media transformation processor that decodes an input data stream received from a participant in the media conference to generate input media information;

the SRM module is further operable to communicate to the second media transformation processor control information identifying the first mixing processor; and

the second media transformation processor uses the control information to communicate the generated input media information to the first mixing processor.

8. A method for using a plurality of processors to support a media conference, comprising:

receiving a request to support a media conference;

assigning a mixing processor a task of mixing input media information associated with two or more first participant to generate output media information;

assigning a first media transformation processor a task of encoding the output media information to generate an output data stream for communication to a participant in the media conference;

communicating to the mixing processor control information identifying the first media transformation processor;

mixing the input media information associated with the first participants to generate the output media information for communication to the second participant using a the mixing processor;

communicating the output media information from the mixing processor to the first media transformation processor, wherein the mixing processor and the first media transformation processor are separate hardware components;

encoding the output media information to generate the output data stream using the first media transformation processor; and

communicating the output data stream from the first media transformation processor to the second participant'"'"'s end-user device.

9. The method of claim 8, further comprising:

receiving at a second media transformation processor an input data stream from a first participant'"'"'s end-user device;

decoding the input data stream to generate input media information associated with the first participant; and

communicating the input media information associated with the first participant from the second media transformation processor to the mixing processor.

10. The method of claim 8, further comprising:

receiving at the first media transformation processor an input data stream from the second participant'"'"'s end-user device;

decoding the input data stream to generate input media information associated with the second participant;

communicating the input media information associated with the second participant from the first media transformation processor to the mixing processor; and

mixing the input media information associated with the second participant with input media information from one or more other participants to generate output media information for communication to a first participant.

11. The method of claim 8, further comprising:

receiving at the mixing processor an input data stream from a first participant'"'"'s end-user device; and

decoding the input data stream to generate input media information associated with the first participant.

12. The method of claim 8, wherein the mixing processor and the first media transformation processor are separate integrated circuits.

13. The method of claim 8, wherein the mixing processor and the first media transformation processor are separate digital signal processors (DSPs).

14. The method of claim 8, wherein the media conference is a voice telephone conference and the media information is voice information.

15. A system for using a plurality of processors to support a media conference, comprising:

a plurality of end-user devices coupled to a data network and operable to generate input media information, to encode the input media information to generate input data streams, and to communicate the input data streams using the data network; and

a conferencing device coupled to the data network, the conferencing device comprising;

a system resource management (SRM) module coupled to one or more mixing processors and a plurality of media transformation processors, the SRM module operable to receive a request to support a media conference and, in response, to allocate the media conference to at least a first mixing processor and a first media transformation processor, the SRM module further operable to communicate to the mixing processor control information identifying the first media transformation processor;

wherein the first a mixing processor is operable to mix input media information associated with two or more first participants to generate output media information for communication to a second participant;

wherein the first mixing processor communicates the output media information to the first media transformation processor identified by the control information received from the SRM module;

wherein the first media transformation processor coupled to the mixing processor and operable to receive the output media information from the mixing processor, to encode the output media information to generate an output data stream, and to communicate the output data stream to the second participant'"'"'s end-user device.

wherein the mixing processor and the first media transformation processor are separate hardware components.

16. The system of claim 15, wherein the conferencing device further comprises one or more media transformation processors operable to decode the input data streams to generate the input media information.

17. The system of claim 15, wherein the conferencing device is further operable to identify a coding standard used by a participant'"'"'s end-user device to encode output media information for communication to the participant'"'"'s end-user device using the identified coding standard.

18. The system of claim 15, wherein the first mixing processor and the first media transformation processor are separate integrated circuits.

19. The system of claim 15, wherein the first mixing processor and the first media transformation processor are separate digital signal processors (DSPs).

20. The system of claim 15, wherein the media conference is a voice telephone conference and the media information is voice information.