RECOGNIZING ADDRESS AND POINT OF INTEREST SPEECH RECEIVED AT A VEHICLE

• US 20170097242A1
• Filed: 10/02/2015
• Published: 04/06/2017
• Est. Priority Date: 10/02/2015
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: TALWAR, Gaurav, ZHAO, Xufang
• Granted Patent: US 10,006,777 B2
• Time in Patent Office: Days
• CPC Class Codes: G01C 21/3608 using speech input, e.g. using speech recognition
• CPC Class Codes: G01C 21/3679 Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities G01C21/3611 takes precedence
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue
• CPC Class Codes: G10L 2015/223 Execution procedure of a spoken command

Abstract

A system and method of recognizing speech received at a vehicle includes: receiving speech from a vehicle occupant via a microphone; determining whether the speech relates to a point of interest (POI) or an address without receiving a POI command prompt or an address command prompt in the speech from the vehicle occupant; selecting a POI function or an address function based on the determination; and processing the received speech to identify a POI or an address.

Claims

1. A method of recognizing speech received at a vehicle, the steps comprising:

(a) receiving speech from a vehicle occupant via a microphone;

(b) determining whether the speech relates to a point of interest (POI) or an address without receiving a POI command prompt or an address command prompt in the speech from the vehicle occupant;

(c) selecting a POI function or an address function based on step (b); and

(d) processing the received speech to identify a POI or an address.

2. The method of claim 1, further comprising the step of determining a confidence value for the processed speech.

3. The method of claim 2, further comprising the step of changing the selected POI function or address function based on the confidence value.

4. The method of claim 2, further comprising the step of determining a second confidence value for speech processed using a different function.

5. The method of claim 4, further comprising the steps of comparing the confidence value and the second confidence value and selecting a speech hypothesis based on the comparison.

6. The method of claim 1, wherein step (b) further comprises the step of determining a temporal length of the received speech.

7. The method of claim 1, wherein the POI function includes a word model stored with a list of commonly-used POIs.

8. The method of claim 1, wherein the address function comprises listening for a number value preceding words in the received speech.

9. A method of recognizing speech received at a vehicle, the steps comprising:

(a) receiving from a vehicle occupant a POI function selection or an address function selection at an automatic speech recognition (ASR) system;

(b) receiving speech from the vehicle occupant via a microphone;

(c) determining whether the speech relates to a point of interest (POI) or an address without receiving a POI command prompt or an address command prompt from the vehicle occupant;

(d) selecting a POI function or an address function based on step (c); and

(e) processing the received speech to identify a POI or an address.

10. The method of claim 9, further comprising the steps of determining a confidence value for the processed speech and changing the selected POI function based on the confidence value.

11. The method of claim 10, further comprising the step of determining a second confidence value for speech processed using a different function.

12. The method of claim 11, further comprising the steps of comparing the confidence value and the second confidence value and selecting a speech hypothesis based on the comparison.

13. The method of claim 9, wherein step (c) further comprises the step of determining a temporal length of the received speech.

14. The method of claim 9, wherein the POI function includes a word model stored with a list of commonly-used POIs.

15. The method of claim 9, wherein the address function comprises listening for a number value preceding words in the received speech.

16. A method of recognizing speech received at a vehicle, the steps comprising:

(a) establishing a plurality of commonly-used point of interest (POI) words at a speech recognition system;

(b) receiving speech from the vehicle occupant via a microphone;

(c) determining whether the speech includes one or more of the commonly-used POI words; and

(d) selecting a POI function over an address function based on the determination in step (c).

17. The method of claim 16, further comprising the steps of determining a confidence value for processed speech and changing the selected POI function based on the confidence value.

18. The method of claim 17, further comprising the step of determining a second confidence value for speech processed using the address function.

19. The method of claim 16, further comprising the steps of comparing the confidence value and the second confidence value and selecting a speech hypothesis based on the comparison.

20. The method of claim 16, wherein the POI function includes a word model stored with a list of commonly-used POIs.