System for speech recognition

Details System for speech recognition System for speech recognition

2004-01-29

2008-12-02

Chawan, Vijay B (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C704S246000, C704S231000, C704S251000, C704S256000

Reexamination Certificate

active

07460995

ABSTRACT:
This invention provides a system for speech recognition comparing speech against stored character strings in memory. Speech is transformed into spoken character strings. To accelerate the identification, a small group of characters from the stored character strings and the spoken character string are compared and the probabilities for identification may be calculated from those results. Those stored patterns, where the probability for identifying the speech exceeds a predetermined value, may be selected for further processing. The selected strings may have the remaining characters added to the group of characters for the next comparison. Alternatively, the number of characters for comparison may be incremented by a predetermined number in a step-by-step fashion, reducing the number of comparisons in subsequent steps as the probabilities for identification rise. The character string in memory with the highest probability for the identification match may be recognized as the character string identifying the speech.

REFERENCES:
patent: 4164025 (1979-08-01), Dubnowski et al.
patent: 4355302 (1982-10-01), Aldefeld et al.
patent: 5204905 (1993-04-01), Mitome
patent: 5778405 (1998-07-01), Ogawa
patent: 6065003 (2000-05-01), Sedluk
patent: 6122612 (2000-09-01), Goldberg
patent: 6205428 (2001-03-01), Brown et al.
patent: 6208965 (2001-03-01), Brown et al.
European Search Report for an EP Application No. EP 03002067.1, dated Jun. 13, 2003, 2 pages.
Bahl, Lalit R. et al., “A Fast Approximate Acoustic Match for Large Vocabulary Speech Recognition,”IEEE Transactions on Speech and Audio Processing, No. 1, Jan. 1993, pp. 59-67.
Owolabi, O. et al., “Fast Approximate String Matching,”Software—Practice and Experience, vol. 18, No. 4, Apr. 1988, pp. 387-393.

Affiliated with

Also associated with

Rating

System for speech recognition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for speech recognition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for speech recognition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4033235