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Speech recognition apparatus & method having dynamic reference pattern adaptation

  • US 5,127,055 A
  • Filed: 02/11/1991
  • Issued: 06/30/1992
  • Est. Priority Date: 12/30/1988
  • Status: Expired due to Term
First Claim
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1. A speech recognition method comprising the steps ofstoring a plurality of reference patterns representing speech to be recognized, storing in association with each reference pattern a quality value representing the effectiveness of that pattern for recognizing past incoming speech utterances,providing correction actions representing the accuracy of a speech recognition during the recognition of unknown incoming speech utterances and after training of the system for improving the accuracy of the speech recognition, anddynamically updating the quality values, during speech recognition, for at least a portion of those reference patterns used during the speech recognition process in response to said correction actions characterizing the usefulness of these reference patterns.

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