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Voice and data exchange over a packet based network with voice detection

  • US 7,180,892 B1
  • Filed: 09/01/2000
  • Issued: 02/20/2007
  • Est. Priority Date: 09/20/1999
  • Status: Expired due to Term
First Claim
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1. A method of detecting voice in a signal having first, second and third frames, the first frame preceding the second frame in time and the second frame preceding the third frame in time, the method comprising:

  • autocorrelating the signal;

    estimating a characteristic of the autocorrelated signal;

    detecting voice in the signal as a function of the estimated characteristic; and

    vacating the voice detection for the second frame if voice is not detected in both the first and third frames.

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