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Word and pattern recognition through overlapping hierarchical tree defined by relational features

  • US 5,787,395 A
  • Filed: 07/18/1996
  • Issued: 07/28/1998
  • Est. Priority Date: 07/19/1995
  • Status: Expired due to Fees
First Claim
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1. A voice recognizing method, comprising the steps of:

  • providing a plurality of voice recognition objective words;

    structuring said voice recognition objective words into a hierarchical structure having a plurality of levels based upon correlation values indicative of similarities between each pair of voice recognition objective words;

    inputting an unknown voice signal;

    accumulating scores for the voice recognition objective words which are related in said hierarchical structure to a voice recognition word in a higher level, which word in said higher level receives a high score for said unknown input voice signal by using parameters which are calculated in advance; and

    extracting and recognizing a corresponding voice recognition objective word to said unknown input voice signal.

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