NAVIGATION SYSTEM WITH SPEECH PROCESSING MECHANISM AND METHOD OF OPERATION THEREOF

• US 20100312469A1
• Filed: 06/05/2009
• Published: 12/09/2010
• Est. Priority Date: 06/05/2009
• Status: Abandoned Application

• Current Assignee: TeleNav Incorporated
• Original Assignee: TeleNav Incorporated
• Inventors: Chen, Hong
• Application Number:
  US12/479,494
• Publication Number:
  US 20100312469A1
• Time in Patent Office: Days
• US Class Current: 701/207
• CPC Class Codes: G01C 21/3608 using speech input, e.g. using speech recognition
• CPC Class Codes: G10L 15/193 Formal grammars, e.g. finite state automata, context free grammars or word networks
• 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 method of operation of a navigation system includes: receiving a single utterance of a spoken input; generating a search region from the spoken input with a region language model; and generating a location identifier based on a sub-region search grammar and the search region for displaying on a device.

Claims

1. A method of operation of a navigation system comprising:

receiving a single utterance of a spoken input;

generating a search region from the spoken input with a region language model; and

generating a location identifier based on a sub-region search grammar and the search region for displaying on a device.

2. The method as claimed in claim 1 wherein generating the search region includes generating the search region based on a confidence score.

3. The method as claimed in claim 1 further comprising parsing a past usage of a previous entry of the spoken input.

4. The method as claimed in claim 1 wherein generating the location identifier includes interpreting the spoken input as an address, an intersection, a point of interest, a listing, or a route.

5. The method as claimed in claim 1 wherein generating the location identifier based on the sub-region search grammar includes parsing the spoken input with a navigation preposition syntax.

6. A method of operation of a navigation system comprising:

receiving a single utterance of a spoken input;

generating decoded data of the spoken input;

generating a search region from the decoded data with a region language model; and

generating a location identifier based on a sub-region search grammar and the search region for displaying on a device.

7. The method as claimed in claim 6 wherein generating the search region includes generating the search region based on a confidence score and a threshold.

8. The method as claimed in claim 6 further comprising parsing the decoded data based on a past usage of a previous entry of the spoken input or a current location.

9. The method as claimed in claim 6 further comprising:

interpreting the decoded data as an address, an intersection, a point of interest, a listing, or a route for generating parsed data; and

wherein generating the search region includes;

generating the search region best matched to the parsed data based on the region language model; and

generating a sub-region based on the sub-region search grammar indexed by the search region.

10. The method as claimed in claim 6 further comprising:

separating the decoded data with a navigation preposition syntax for generating parsed data; and

wherein generating the search region includes;

recognizing a city and a state of the parsed data independent in the order thereof based on the region language model.

11. A navigation system comprising:

a user interface for receiving a single utterance of a spoken input; and

a control unit, coupled to the user interface, for generating a search region from the spoken input with a region language model; and

a location identifier generate module, coupled to the user interface, for generating a location identifier based on a sub-region search grammar and the search region for displaying on a device.

12. The system as claimed in claim 11 wherein the control unit is for generating the search region based on a confidence score.

13. The system as claimed in claim 11 wherein the control unit is for parsing a past usage of a previous entry of the spoken input.

14. The system as claimed in claim 11 wherein the control unit is for interpreting the spoken input as an address, an intersection, a point of interest, a listing, or a route.

15. The system as claimed in claim 11 wherein the control unit is for parsing the spoken input with a navigation preposition syntax.

16. The system as claimed in claim 11 wherein the control unit is for generating decoded data of the spoken input.

17. The system as claimed in claim 16 wherein the control unit is for generating the search region based on a confidence score and a threshold.

18. The system as claimed in claim 16 wherein the control unit is for parsing the decoded data based on a past usage of a previous entry of the spoken input or a current location.

19. The system as claimed in claim 16 further comprising:

a parse module, coupled to the location identifier generate module, for interpreting the decoded data as an address, an intersection, a point of interest, a listing, or a route for generating parsed data;

a region recognize module, coupled to the parse module, for generating the search region best matched to the parsed data based on the region language model; and

wherein;

the control unit is for generating a sub-region based on the sub-region search grammar indexed by the search region.

20. The system as claimed in claim 16 further comprising:

a parse module, coupled to the location identifier generate module, for separating the decoded data with a navigation preposition syntax for generating parsed data; and

wherein;

the control unit is for recognizing a city and a state of the parsed data independent in the order thereof based on the region language model.