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Extended-performance echo-canceled duplex (EP ECD) communication

  • US 20040213170A1
  • Filed: 04/22/2003
  • Published: 10/28/2004
  • Est. Priority Date: 04/22/2003
  • Status: Abandoned Application
First Claim
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1. A method, comprising the steps of:

  • transmitting a first information-bearing signal on a communications medium, the transmitting occurring in the presence of a received, second information-bearing signal that substantially frequency overlaps the first information-bearing signal;

    changing a first plurality of times among at least two different modes;

    during each mode, encoding information on the first information-bearing signal at a first non-zero information rate; and

    during each mode, causing the first information-bearing signal to exhibit a first non-zero signal level.

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