METHOD OF DIALING PHONE NUMBERS USING AN IN-VEHICLE SPEECH RECOGNITION SYSTEM

• US 20100076764A1
• Filed: 09/19/2008
• Published: 03/25/2010
• Est. Priority Date: 09/19/2008
• Status: Abandoned Application

• Current Assignee: General Motors LLC (General Motors Company)
• Original Assignee: General Motors Corporation (General Motors Company)
• Inventors: Chengalvarayan, Rathinavelu
• Application Number:
  US12/234,217
• Publication Number:
  US 20100076764A1
• Time in Patent Office: Days
• US Class Current: 704/251
• CPC Class Codes: G10L 15/26 Speech to text systems G10L15/08 takes precedence

Abstract

A method of dialing phone numbers using an in-vehicle speech recognition system includes receiving speech input at a vehicle, separating the speech input into a word segment and a digit segment, identifying the letters in a word segment, converting the letters in the word segment to digits, and operating an alphanumeric keypad based on the digit speech segment and the converted word segment.

Claims

1. A method of dialing phone numbers using an in-vehicle speech recognition system, the method comprising:

(a) receiving speech input at a vehicle;

(b) separating the speech input into a word segment and a digit segment;

(c) identifying the letters in a word segment;

(d) converting the letters in the word segment to digits; and

(e) operating an alphanumeric keypad based on the digit segment and the converted word segment.

2. The method of claim 1, wherein speech input is an alphanumeric string of digits and characters.

3. The method of claim 1, wherein separating the speech input of step (b) comprises invoking a vocabulary database and comparing word segments.

4. The method of claim 1, further comprising the step of identifying non-speech segments.

5. The method of claim 1, wherein the number of word segments in step (b) is determined by the number of times the speech input changes from digit segments to word segments and the speech input is parsed.

6. The method of claim 2, wherein the vocabulary database further comprises nametags that are words corresponding to a stored digit segment.

7. The method of claim 3, wherein comparing word segments comprises comparing the word segments received as speech input to word segments stored in the vocabulary database.

8. The method of claim 3, wherein the vocabulary database includes word segments mapped to alphabet letters.

9. The method of claim 6, wherein the stored digit segment does not match letters on an alphanumeric keypad to the nametag.

10. The method of claim 8, wherein the alphabet letters are mapped to digits.

11. A method of dialing phone numbers using an in-vehicle speech recognition system, the method comprising:

(a) receiving speech input at a vehicle;

(b) separating the speech input into a plurality of word segments and digit segments;

(c) recording the order of the word segments and digit segments;

(d) identifying the letters in a word segment;

(e) converting the letters in the word segment to a digit segment;

(f) organizing the digit segments and converted word segments into a single string of digits, wherein the sequence of the single string of digits is based on the recorded order of the word segments and digit segments; and

(g) dialing a telephone number using the single string of digits.

12. The method of claim 11, wherein speech input is an alphanumeric string of digits and characters.

13. The method of claim 11, wherein separating the speech input of step (b) comprises invoking a vocabulary database and comparing stored word segments with the received speech input.

14. The method of claim 13, wherein the vocabulary database includes stored word segments mapped to alphabet letters or a digit segment.

15. The method of claim 14, further comprising the step of comparing the separated word segments to the stored word segments.

16. The method of claim 14, wherein the vocabulary database further comprises nametags that are words corresponding to a stored digit segment.

17. The method of claim 16, wherein the stored digit segment is arbitrarily related to the nametag.

18. The method of claim 11, further comprising the step of identifying non-speech segments.

19. A method of dialing phone numbers using an in-vehicle speech recognition system, the method comprising:

(a) receiving speech input at a vehicle;

(b) separating the speech input into a plurality of word segments and digit segments;

(c) recording the order of the word segments and digit segments;

(d) comparing the plurality of word segments with the content of a vocabulary database, wherein the database contains nametags stored with a string of digits and stored word segments;

(e) if the word segment matches a nametag stored in the vocabulary database, translating the word segment into the string of digits;

(f) if a separated word segment matches a stored word segment, translating the letters of the separated word segment into digits corresponding to the letters of an alphanumeric keypad;

(g) requesting user input if the vocabulary database fails to recognize a word segment;

(h) organizing the translated digit segments and converted word segments into a single string of digits, wherein the sequence of the single string of digits is based on the recorded order of the word segments and digit segments; and

(i) dialing a telephone number using the single string of digits.

20. The method of claim 19, wherein the user input of step (g) further comprises a user verbally enunciating the letters of the word segment.