Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1991-02-11
1992-06-30
Kemeny, Emanuel S.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
G10L 500
Patent
active
051270552
ABSTRACT:
A speech recognition apparatus having reference pattern adaptation stores a plurality of reference patterns representing speech to be recognized, each stored reference pattern having associated therewith a quality value representing the effectiveness of that pattern for recognizing an incoming speech utterance. The method and apparatus provide user correction actions representing the accuracy of a speech recognition, dynamically, during the recognition of unknown incoming speech utterances and after training of the system. The quality values are updated, during the speech recognition process, for at least a portion of those reference patterns used during the speech recognition process. Reference patterns having low quality values, indicative of either inaccurate representation of the unknown speech or non-use, can be deleted so long as the reference pattern is not needed, for example, where the reference pattern is the last instance of a known word or phrase. Various methods and apparatus are provided for determining when reference patterns can be deleted or added, to the reference memory, and when the scores or values associated with a reference pattern should be increased or decreased to represent the "goodness" of the reference pattern in recognizing speech.
REFERENCES:
patent: 3631520 (1971-12-01), Atal
patent: 3909533 (1975-09-01), Willimann
patent: 4087630 (1978-05-01), Browning et al.
patent: 4509133 (1985-04-01), Monbaron et al.
patent: 4590604 (1986-05-01), Feilchenfeld
patent: 4618984 (1986-10-01), Das
patent: 4783803 (1988-11-01), Baker et al.
Kemeny Emanuel S.
Kurzweil Applied Intelligence, Inc.
LandOfFree
Speech recognition apparatus & method having dynamic reference p 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 recognition apparatus & method having dynamic reference p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speech recognition apparatus & method having dynamic reference p will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1871117