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Systems, methods and articles of manufacture for performing high resolution N-best string hypothesization

  • US 5,805,772 A
  • Filed: 12/30/1994
  • Issued: 09/08/1998
  • Est. Priority Date: 12/30/1994
  • Status: Expired due to Term
First Claim
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1. A speech recognition system comprising:

  • means for receiving an input signal representing a speech utterance;

    means for storing a plurality of recognition models having allophonic specifications wherein ones of said plurality of recognition models include one or more inter-word context dependent models and one or more language models; and

    means for processing said input signal utilizing ones of said plurality of recognition models to generate one or more string hypotheses of said input signal, said processing means including;

    means for producing a forward partial path map according to the allophonic specifications of at least one inter-word context dependent model and at least one language model; and

    means for traversing said forward partial path map in the backward direction as a function of said allophonic specifications to generate said one or more string hypotheses.

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