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Distributed sound enhancement

  • US 8,280,462 B2
  • Filed: 11/17/2010
  • Issued: 10/02/2012
  • Est. Priority Date: 06/07/2004
  • Status: Expired due to Term
First Claim
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1. A method of reducing duplicative sound enhancement processing in a communication channel implemented in a handset and a headset in communication with the handset, the method comprising:

  • dividing sound enhancement processing into a plurality of cooperating algorithms;

    implementing at least a subset of the plurality of cooperating algorithms in the headset, wherein the implemented subset includes send-side acoustic echo cancellation, send-side noise cancellation, receive-side frequency expansion, and receive-side noise cancellation; and

    transmitting an indication of the implemented subset from the headset to the handset;

    whereby the handset can selectively determine a second subset of the plurality of cooperating algorithms to use in processing the communication channel so as to avoid repeating sound enhancement processing implemented in the headset.

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