Adaptive nametag training with exogenous inputs

• US 20070136063A1
• Filed: 12/12/2005
• Published: 06/14/2007
• Est. Priority Date: 12/12/2005
• Status: Abandoned Application

• Current Assignee: General Motors Corporation (General Motors Company)
• Original Assignee: General Motors Corporation (General Motors Company)
• Inventors: Arun, Uma, Chesnutt, Elizabeth, Grost, Timothy
• Application Number:
  US11/299,806
• Publication Number:
  US 20070136063A1
• Time in Patent Office: Days
• US Class Current: 704/254
• CPC Class Codes: G10L 15/20 Speech recognition techniques specially adapted for robustness in adverse environments, e.g. in noise, of stress induced speech G10L21/02 takes precedence
• CPC Class Codes: G10L 2015/025 Phonemes, fenemes or fenones being the recognition units

Abstract

A method of speech recognition includes receiving an utterance at a vehicle telematics unit. The utterance is converted into at least one phoneme. A confidence score is determined based on a comparison between the at least one phoneme and a nametag phoneme. The at least one phoneme is stored in association with the nametag phoneme based on the confidence score.

Claims

1. A method of speech recognition comprising:

receiving an utterance at a vehicle telematics unit;

converting the utterance into at least one phoneme;

determining a confidence score based on a comparison between the at least one phoneme and a nametag phoneme; and

storing the at least one phoneme in association with the nametag phoneme based on the confidence score.

2. The method of claim 1 further comprising receiving exogenous input at the vehicle telematics unit.

3. The method of claim 2 wherein the exogenous input is selected from a group consisting of vehicle speed, wiper frequency, window position, braking frequency, driver personalization, and ventilation system settings.

4. The method of claim 2 wherein storing the at least one phoneme comprises storing the at least one phoneme in association with the nametag phoneme and exogenous input.

5. The method of claim 1 further comprising processing the nametag based on a third predetermined confidence range.

6. The method of claim 1 further comprising storing the at least one phoneme in association with the nametag based on a second predetermined confidence range.

7. The method of claim 1 further comprising determining storage space for alternative nametags.

8. The method of claim 8 further comprising managing storage space for the alternative nametags.

9. A computer usable medium including a program for speech recognition comprising:

computer readable program code for receiving an utterance at a vehicle telematics unit;

computer readable program code for converting the utterance into at least one phoneme;

computer readable program code for determining a confidence score based on a comparison between the at least one phoneme and a nametag phoneme; and

computer readable program code for storing the at least one phoneme in association with the nametag phoneme based on the determined confidence score.

10. The computer usable medium of claim 9 further comprising computer readable program code for receiving exogenous input at the vehicle telematics unit.

11. The computer usable medium of claim 10 wherein the exogenous input is selected from a group consisting of vehicle speed, wiper frequency, window position, braking frequency, driver personalization, and ventilation system settings.

12. The computer usable medium of claim 10 wherein computer readable program code for storing the at least one phoneme comprises computer readable program code for storing the at least one phoneme in association with the nametag phoneme and exogenous input

13. The computer usable medium of claim 9 further comprising computer readable program code for processing the nametag based on a third predetermined confidence range.

14. The computer usable medium of claim 9 further comprising computer readable program code for storing the at least one phoneme in association with the nametag based on a second predetermined confidence range.

15. The computer usable medium of claim 9 further comprising computer readable program code for determining storage space for alternative nametags.

16. The computer usable medium of claim 15 further comprising computer readable program code for managing storage space for the alternative nametags.

17. A speech recognition system comprising:

means for receiving an utterance at a vehicle telematics unit;

means for converting the utterance into at least one phoneme;

means for determining a confidence score based on a comparison between the at least one phoneme and a nametag phoneme; and

means for storing the at least one phoneme in association with the nametag phoneme based on the determined confidence score.