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Downlink activity and double talk probability detector and method for an echo canceler circuit

  • US 20050129226A1
  • Filed: 12/12/2003
  • Published: 06/16/2005
  • Est. Priority Date: 12/12/2003
  • Status: Active Grant
First Claim
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1. An echo canceller circuit comprising:

  • a downlink activity and double talk probability data generator operative to receive pre-echo canceler uplink data and downlink data, and in response to produce double talk probability data and downlink activity data; and

    an echo canceler stage, operatively coupled to the downlink activity and double talk probability data generator, and operative to receive the downlink data, the pre-echo canceler uplink data, the double talk probability data, and the downlink activity data, and in response to produce uplink data.

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