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Apparatuses and methods for training and operating speech recognition systems

DC
  • US 5,850,627 A
  • Filed: 06/26/1997
  • Issued: 12/15/1998
  • Est. Priority Date: 11/13/1992
  • Status: Expired due to Term
First Claim
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1. A computerized method of training pattern information used by a word recognition system to identify the word signals which represent individual vocabulary words, said method comprising the steps of:

  • storing a plurality of vocabulary words, including storing pattern information for identifying the word signals which represent each such vocabulary word;

    prompting the user to generate a word signal representing a given vocabulary word;

    receiving a post-prompt word signal generated after the user was prompted to generate the prompted word;

    scoring the match of the post-prompt word signal against each word in an active vocabulary including one or more of said stored plurality of vocabulary words other than said prompted word;

    responding, when said scoring of the post-prompt word signal against one or more of said active vocabulary words other than said prompted word is better than a certain measure, by reducing the use of the post-prompt word signal to train pattern information associated with the prompted word; and

    responding, when said scoring of the post-prompt word signal against said active vocabulary words other than the prompted word which is worse than a certain measure, by increasing the use of the post-prompt word signal to train pattern information associated with the prompted word.

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