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System and method for transmitting voice input from a remote location over a wireless data channel

  • US 6,885,735 B2
  • Filed: 01/29/2002
  • Issued: 04/26/2005
  • Est. Priority Date: 03/29/2001
  • Status: Expired due to Term
First Claim
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1. A voice communication method comprising:

  • receiving an acoustic analog signal at a user system directly from a user;

    converting the analog signal to a digital signal;

    canceling noise from the digital signal to form a processed digital signal;

    detecting user speech in the processed digital signal by evaluating two or more of noise cancellation, echo-cancellation or end-pointing, wherein the detected user speech is in a format capable of being outputted over a speaker;

    sending the detected user speech to a server over a network, and performing speech recognition processing of the sent detected user speech at the server.

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