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Method and apparatus for channel equalization

  • US 7,400,677 B2
  • Filed: 09/06/2005
  • Issued: 07/15/2008
  • Est. Priority Date: 07/01/2002
  • Status: Expired due to Term
First Claim
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1. A method for filter coefficient selection in a receiver-transmitter pair comprising:

  • training a first filter and a second filter to determine first filter coefficients and second filter coefficients such that the first filter and the second filter have a transfer function inverse to that of a channel, wherein during the training at least one second filter coefficient is forced to a predetermined value;

    processing the first filter coefficients to isolate minimum phase coefficients and maximum phase coefficients;

    transmitting the minimum phase coefficients to a third filter;

    establishing coefficients of the third filter based on the minimum phase coefficients; and

    setting the first filter coefficients based on the maximum phase coefficients.

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