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Audio detection for hands-free wireless

  • US 20020137505A1
  • Filed: 05/24/2001
  • Published: 09/26/2002
  • Est. Priority Date: 02/18/2000
  • Status: Abandoned Application
First Claim
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1. A method of determining the presence of a signal output from a wireless communications device, comprising:

  • receiving a received signal by signal determining circuitry from a wireless communications device;

    analyzing said received signal related to determining whether said received signal comprises at least a first predetermined signal that includes an audible frequency.

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