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Method and apparatus for the recognition of spelled spoken words

  • US 6,694,296 B1
  • Filed: 11/03/2000
  • Issued: 02/17/2004
  • Est. Priority Date: 07/20/2000
  • Status: Expired due to Term
First Claim
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1. A speech recognizer recognizing speech based on an input utterance, comprising:

  • a dictation language model accessible to provide a dictation model output indicative of a likely word recognized based on an input utterance, given one or more preceding words;

    a letter-based spelling language model accessible to provide a spelling model output indicative of a likely letter recognized based on the input utterance, given one or more preceding letters;

    an acoustic model accessible to provide an acoustic model output indicative of a likely speech unit recognized based on the input utterance; and

    a speech recognition component configured to access the dictation language model, the spelling language model and the acoustic model and to weight the dictation model output and the spelling model output and calculate likely recognized speech based on the input utterance and one of the weighted dictation model output and the weighted spelling model output, the weight of the dictation model output and the weight of the spelling model output determining which output is used to recognize the speech in the input utterance.

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