Speech processing apparatus and method using confidence scores

Details Speech processing apparatus and method using confidence scores Speech processing apparatus and method using confidence scores

2007-01-16

2007-01-16

Hudspeth, David (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Recognition

C704S239000, C704S240000

Reexamination Certificate

active

10288287

ABSTRACT:
A speech recognition method and apparatus is disclosed in which outputs a confidence score indicative of the posterior probability of an utterance being correctly matched to a word model. The confidence score for the matching of an utterance to a word model is determined directly from the generated values indicative of the goodness of match between the utterance and stored word models utilizing the following equation:confidence=exp⁡(-2σ⁢S⁡(x|w))∑words⁢exp⁡(2σ⁢S⁡(x|w))where S(x|w) is the match score for the correlation between a signal x and word w and σ is an experimentally determined constant.

REFERENCES:
patent: 5559925 (1996-09-01), Austin
patent: 5613037 (1997-03-01), Sukkar
patent: 5710864 (1998-01-01), Juang et al.
patent: 5737489 (1998-04-01), Chou et al.
patent: 5842163 (1998-11-01), Weintraub
patent: 6535850 (2003-03-01), Bayya
patent: 6804647 (2004-10-01), Heck et al.
patent: 2003/0130844 (2003-07-01), Chaudhari et al.

Affiliated with

Also associated with

Rating

Speech processing apparatus and method using confidence scores does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speech processing apparatus and method using confidence scores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speech processing apparatus and method using confidence scores will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3795274