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Microphone initialization enhancement for speech recognition

  • US 7,636,661 B2
  • Filed: 06/30/2005
  • Issued: 12/22/2009
  • Est. Priority Date: 07/01/2004
  • Status: Active Grant
First Claim
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1. A method of speech recognition for use with a system having a microphone, comprising:

  • receiving a signal from the microphone representative of a speech to be recognized, wherein the microphone was turned off before receiving the signal;

    identifying an initial portion of the speech that contains omitted sounds;

    performing speech recognition on the signal with reduced contribution from the initial portion of the speech, wherein a quantity by which the contribution of the initial portion is reduced is a configurable parameter;

    when speech recognition has fallen below a predetermined threshold, requesting a user to speak a predetermined redundant word before an intended speech, wherein the predetermined redundant word turns on the microphone and is user configurable; and

    speech recognizing the intended speech after the predetermined redundant word.

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