Speech disambiguation in a composite services enablement environment

• US 20070132834A1
• Filed: 12/08/2005
• Published: 06/14/2007
• Est. Priority Date: 12/08/2005
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Moore, Victor, Mandalia, Baiju, Nusbickel, Wendi, Da Palma, William
• Application Number:
  US11/297,593
• Publication Number:
  US 20070132834A1
• Time in Patent Office: Days
• US Class Current: 348/14.10
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/1063 Application servers providing network services systems providing special services to telephonic subscribers H04M3/42
• CPC Class Codes: H04L 65/4015 where at least one of the additional parallel sessions is real time or time sensitive, e.g. white board sharing, collaboration or spawning of a subconference
• CPC Class Codes: H04N 7/147 Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals selecting H04Q

Abstract

Embodiments of the present invention provide a method, system and computer program product for deploying and delivering composite services in an NGN network. In one embodiment, a composite service enabling data processing system can be provided. The system can include a visual channel servlet enabled to establish for a common session a visual channel of access to a composite service, and a voice channel servlet enabled to establish for the common session a voice channel of access to a composite service. The system further can include a model servlet configured for coupling to a model for the common session, for modifying state data in the model for the common session, and to synchronize views for each of the channels of access to the composite service responsive to updates detected in the model. Finally, the system can include speech disambiguation logic coupled to the voice channel servlet and can include program code enabled to utilize model updates provided over the visual channel of access when disambiguating voice input in the voice channel of access.

Claims

1. A speech disambiguation method for use in a composite services enablement environment, the method comprising:

establishing both a voice channel of access and a visual channel of access to a common session in the composite services enablement environment;

providing a voice view for the voice channel of access in a voice end point, and a visual view for the visual channel of access in a visual end point;

synchronizing the voice and visual views responsive to detecting updates to a model for the session; and

,

utilizing model updates provided by the visual view when disambiguating voice input in the voice view.

2. The method of claim 1, wherein synchronizing the voice and visual views responsive to detecting updates to a model for the session, comprises:

maintaining the state of the model for the session;

creating listeners for changes of the state for the model;

detecting changes in the state for the model in the listeners; and

,

updating the voice and visual views responsive to detecting the changes of state for the model in the listeners.

3. The method of claim 1, wherein utilizing model updates provided by the visual view when disambiguating voice input in the voice view, comprises:

building a list of N-best candidate words when speech recognizing the voice input; and

,

selecting one of the candidate words based upon a model update provided by the visual view.

4. The method of claim 1, wherein utilizing model updates provided by the visual view when disambiguating voice input in the voice view, comprises:

filtering a set of speech grammars based upon a model update provided by the visual view; and

,

applying the filtered set of speech grammars when speech recognizing the voice input.

5. A composite service enabling data processing system comprising:

a visual channel servlet enabled to establish for a common session a visual channel of access to a composite service;

a voice channel servlet enabled to establish for the common session a voice channel of access to a composite service;

a model servlet configured for coupling to a model for the common session, for modifying state data in the model for the common session, and to synchronize views for each of the channels of access to the composite service responsive to updates detected in the model; and

,

speech disambiguation logic coupled to the voice channel servlet, the speech disambiguation logic comprising program code enabled to utilize model updates provided over the visual channel of access when disambiguating voice input in the voice channel of access.

6. The system of claim 5, wherein the program code of the speech disambiguation logic is enabled to build a list of N-best candidate words when speech recognizing voice input, and to select one of the candidate words based upon a model update provided over the visual channel of access.

7. The system of claim 5, further comprising a set of speech grammars coupled to the voice channel servlet, the speech disambiguation logic further comprising program code enabled to filter the set of speech grammars based upon a model update provided over the visual channel of access, and to apply the filtered set of speech grammars when speech recognizing voice input provided over the voice channel of access.

8. The system of claim 5, wherein the voice channel servlet comprises a voice enabler and voice server enabled to establish for the single session, the voice channel of access to the composite service.

9. The system of claim 5, wherein the channel servlets and model servlet are disposed in a Web container.

10. The system of claim 5, wherein the channel servlets and model servlet are disposed in an Internet protocol (IP) multimedia subsystem (IMS) in a next generation networking (NGN) network.

11. A computer program product comprising a computer usable medium having computer usable program code for speech disambiguation in a composite services enablement environment, the computer program product including:

computer usable program code for establishing both a voice channel of access and a visual channel of access to a common session in the composite services enablement environment;

computer usable program code for providing a voice view for the voice channel of access in a voice end point, and a visual view for the visual channel of access in a visual end point;

computer usable program code for synchronizing the voice and visual views responsive to detecting updates to a model for the session; and

,

computer usable program code for utilizing model updates provided by the visual view when disambiguating voice input in the voice view.

12. The computer program product of claim 11, wherein the computer usable program code for synchronizing the voice and visual views responsive to detecting updates to a model for the session, comprises:

computer usable program code for maintaining the state of the model for the session;

computer usable program code for creating listeners for changes of the state for the model;

computer usable program code for detecting changes in the state for the model in the listeners; and

,

computer usable program code for updating the voice and visual views responsive to detecting the changes of state for the model in the listeners.

13. The computer program product of claim 11, wherein the computer usable program code for utilizing model updates provided by the visual view when disambiguating voice input in the voice view, comprises:

computer usable program code for building a list of N-best candidate words when speech recognizing the voice input; and

,

computer usable program code for selecting one of the candidate words based upon a model update provided by the visual view.

14. The computer program product of claim 11, wherein the computer usable program code for utilizing model updates provided by the visual view when disambiguating voice input in the voice view, comprises:

computer usable program code for filtering a set of speech grammars based upon a model update provided by the visual view; and

,

computer usable program code for applying the filtered set of speech grammars when speech recognizing the voice input.