Wireless device to access network-based voice-activated services using distributed speech recognition

• US 20060235684A1
• Filed: 04/14/2005
• Published: 10/19/2006
• Est. Priority Date: 04/14/2005
• Status: Abandoned Application

• Current Assignee: Sbc Knowledge Ventures, L.P.
• Original Assignee: Sbc Knowledge Ventures, L.P.
• Inventors: Chang, Hisao M.
• Application Number:
  US11/106,016
• Publication Number:
  US 20060235684A1
• Time in Patent Office: Days
• US Class Current: 704/233
• CPC Class Codes: G10L 15/30 Distributed recognition, e.g. in client-server systems, for mobile phones or network applications
• CPC Class Codes: G10L 2015/228 of application context

Abstract

A speech utterance is sensed using a mobile telecommunication device. The speech utterance is compressed into compressed data that is communicated from the mobile telecommunication device to a remote system. The remote system performs a first remote attempt to recognize the speech utterance using a personal directory specific to the mobile telecommunication device, and a second remote attempt to recognize the speech utterance using a group directory for a group of which the mobile telecommunication device is a member. At least one remote recognition result is communicated back to the mobile telecommunication device based on the first and second remote attempts. The mobile telecommunication device performs a local attempt to recognize the speech utterance and retrieves at least one local recognition result based thereon. A final recognition result set is determined based on the at least one local recognition result and the at least one remote recognition result.

Claims

1. A method comprising:

sensing a speech utterance using a mobile telecommunication device;

compressing the speech utterance by the mobile telecommunication device to generate compressed data;

communicating the compressed data from the mobile telecommunication device to a remote system;

performing a first remote attempt to recognize the speech utterance by the remote system based on the compressed data using a personal directory specific to the mobile telecommunication device;

performing a second remote attempt to recognize the speech utterance by the remote system based on the compressed data using a group directory for a group of which the mobile telecommunication device is a member;

communicating at least one remote recognition result from the remote system to the mobile telecommunication device based on the first remote attempt and the second remote attempt;

performing a local attempt to recognize the speech utterance locally by the mobile telecommunication device;

retrieving at least one local recognition result based on the local attempt; and

determining a final recognition result set based on the at least one local recognition result and the at least one remote recognition result.

2. The method of claim 1 wherein said determining the final recognition set is further based on a location of the mobile telecommunication device.

3. The method of claim 1 wherein said performing the local attempt to recognize the speech utterance is based on a plurality of acoustic models for a plurality of different times of day.

4. The method of claim 1 further comprising:

performing a third remote attempt to recognize the speech utterance by the remote system based on the compressed data using a service-wide directory;

wherein the at least one remote recognition result is further based on the third remote attempt.

5. The method of claim 1 further comprising:

selecting which results of the first remote attempt and the second remote attempt to include in the at least one remote recognition result based on their distance to a location of the mobile telecommunication device.

6. The method of claim 1 wherein each entry in the final recognition result set is a member of both the at least one local recognition result and the at least one remote recognition result.

7. The method of claim 1 further comprising:

performing a feature of a voice-activated service based on at least one entry of the final recognition result set.

8. The method of claim 7 wherein the feature comprises automatically dialing at least one telephone number based on the at least one entry of the final recognition result set.

9. The method of claim 7 wherein the at least one entry comprises a plurality of entries, and wherein the feature comprises automatically placing calls to a plurality of telephone numbers based on the plurality of entries of the final recognition result set.

10. The method of claim 9 wherein the feature further comprises sending a pre-recorded message in the calls to the plurality of telephone numbers.

11. The method of claim 7 wherein the feature comprises automatically issuing at least one command associated with the at least one entry of the final recognition result set.

12. The method of claim 11 wherein the command is to send a text message to a plurality of wireless devices based on the at least one entry of the final recognition result set.

13. The method of claim 1 wherein the local attempt is performed concurrently with at least one of the first remote attempt and the second remote attempt.

14. The method of claim 1 further comprising:

automatically adding an entry to the group directory in response to detecting that a number of members of the group have added the same entry to their personal directories.

15. A wireless telecommunication device comprising:

an audio input device to sense a speech utterance;

an automatic speech recognition engine responsive to the audio input device to perform a local attempt to recognize the speech utterance and to retrieve at least one local recognition result based on the local attempt;

a speech features extraction module responsive to the audio input device to compress the speech utterance into compressed data;

a data sync agent to communicate the compressed data to a remote system and to receive at least one remote recognition result from the remote system, the at least one remote recognition result based on a first remote attempt to recognize the speech utterance by the remote system based on the compressed data using a personal directory specific to the mobile telecommunication device, the at least one remote recognition result further based on a second remote attempt to recognize the speech utterance by the remote system based on the compressed data using a group directory for a group of which the mobile telecommunication device is a member; and

a session manager to determine a final recognition result set based on the at least one local recognition result and the at least one remote recognition result.

16. The wireless telecommunication device of claim 15 wherein the session manager is to determine the final recognition set based on a location of the mobile telecommunication device.

17. The wireless telecommunication device of claim 15 wherein the automatic speech recognition engine performs the local attempt to recognize the speech utterance based on a plurality of acoustic models for a plurality of different times of day.

18. The wireless telecommunication device of claim 15 wherein the at least one remote recognition result is further based on a third remote attempt to recognize the speech utterance by the remote system based on the compressed data using a service-wide directory.

19. The wireless telecommunication device of claim 15 wherein each entry in the final recognition result set is a member of both the at least one remote recognition result and the at least one remote recognition result.

20. The wireless telecommunication device of claim 15 wherein the session manager initiates performing a feature of a voice-activated service based on at least one entry of the final recognition result set.

21. The wireless telecommunication device of claim 20 wherein the feature comprises automatically dialing at least one telephone number based on the at least one entry of the final recognition result set.

22. The wireless telecommunication device of claim 20 wherein the at least one entry comprises a plurality of entries, and wherein the feature comprises automatically placing calls to a plurality of telephone numbers based on the plurality of entries of the final recognition result set.

23. The wireless telecommunication device of claim 22 wherein the feature further comprises sending a pre-recorded message in the calls to the plurality of telephone numbers.

24. The wireless telecommunication device of claim 20 wherein the feature comprises automatically issuing at least one command associated with the at least one entry of the final recognition result set.

25. The wireless telecommunication device of claim 24 wherein the command is to send a text message to a plurality of wireless devices based on the at least one entry of the final recognition result set.

26. The wireless telecommunication device of claim 15 wherein the local attempt is performed concurrently with at least one of the first remote attempt and the second remote attempt.

27. The wireless telecommunication device of claim 15 wherein the automatic speech recognition engine performs the local attempt to recognize the speech utterance based on a plurality of adaptive acoustic models.