Method to Distribute Speech Resources in a Media Server

• US 20070136414A1
• Filed: 12/12/2005
• Published: 06/14/2007
• Est. Priority Date: 12/12/2005
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Nusbickel, Wendi
• Granted Patent: US 8,015,304 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/1014 based on the content of a request
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion

Abstract

A method and a system for distributing media processing resources. A first request formatted in accordance with a first protocol can be received from a client requesting a media processing resource. The first request can be morphed into a second request that is formatted in accordance with a second protocol. Further, a media processing resource can be selected from a plurality of available media processing resources, and the second request can be forwarded to the selected media processing resource in accordance with the second protocol.

Claims

1. A method of distributing speech resources comprising:

receiving a first request from a client requesting a media processing resource, the first request being formatted in accordance with a first protocol;

morphing the first request into a second request formatted in accordance with a second protocol;

selecting a media processing resource from a plurality of available media processing resources; and

forwarding the second request to the selected media processing resource in accordance with the second protocol.

2. The method of claim 1, wherein said step of selecting the media processing resource comprises selecting a media servlet associated with the media processing resource.

3. The method of claim 2, further comprising establishing a client session with the media servlet.

4. The method of claim 3, further comprising supporting the client session with cookies or URL rewriting.

5. The method of claim 1, further comprising:

receiving from the selected media processing resource a first event generated in response to the second request, the first event being formatted in accordance with the second protocol;

morphing the first event into a second event formatted in accordance with the first protocol; and

forwarding the second event to the client in accordance with the first protocol.

6. The method of claim 5, further comprising establishing a client session with a media servlet associated with the media processing resource and communicating from the media servlet to a callback servlet a session identifier that identifies the client.

7. The method of claim 6, wherein said step of morphing the first event into the second event comprises associating the session identifier with the second event.

8. The method of claim 1, further comprising:

defining the first protocol to be a Media Resource Control Protocol (MRCP);

defining the second protocol to be a Hypertext Transfer Protocol (HTTP); and

distributing the plurality of media processing resources across a plurality of server nodes.

9. A machine readable storage having stored thereon a computer program having a plurality of code sections comprising:

code for receiving a first request from a client requesting a media processing resource, the first request being formatted in accordance with a first protocol;

code for morphing the first request into a second request formatted in accordance with a second protocol;

code for selecting a media processing resource from a plurality of available media processing resources; and

code for forwarding the second request to the selected media processing resource in accordance with the second protocol.

10. The machine readable storage of claim 9, wherein said code for selecting the media processing resource comprises code for selecting a media servlet associated with the media processing resource.

11. The machine readable storage of claim 10, further comprising code for establishing a client session with the media servlet.

12. The machine readable storage of claim 9, further comprising code for supporting the client session with cookies or URL rewriting.

13. The machine readable storage of claim 9, further comprising:

code for receiving from the selected media processing resource a first event generated in response to the second request, the first event being formatted in accordance with the second protocol;

code for morphing the first event into a second event formatted in accordance with the first protocol; and

code for forwarding the second event to the client in accordance with the first protocol.

14. The machine readable storage of claim 13, further comprising code for establishing a client session with a media servlet associated with the media processing resource and communicating from the media servlet to a callback servlet a session identifier that identifies the client.

15. A system for distributing speech resources comprising:

a protocol morpher that receives a first request from a client requesting a media processing resource, the first request being formatted in accordance with a first protocol, morphs the first request into a second request formatted in accordance with a second protocol, selects a media processing resource from a plurality of available media processing resources, and forwards the second request to the selected media processing resource in accordance with the second protocol.

16. The system of claim 15, wherein the protocol morpher selects a media servlet associated with the media processing resource in order to select the media processing resource.

17. The system of claim 16, wherein the media servlet establishes a client session with the protocol morpher.

18. The method of claim 17, wherein the protocol morpher supports the client session with cookies or URL rewriting.

19. The system of claim 15, wherein the protocol morpher further receives from the selected media processing resource a first event generated in response to the second request, the first event being formatted in accordance with the second protocol, morphs the first event into a second event formatted in accordance with the first protocol, and forwards the second event to the client in accordance with the first protocol.

20. The method of claim 19, further comprising a media servlet associated with the media processing resource that establishes a client session and communicates to a callback servlet a session identifier that identifies the client.