Patent ID: 7289559

Claim:
A method for updating coefficients in a decision feedback equalizer having an ISI canceller for canceling inter-symbol interference (ISI) from a plurality of first signals received from a channel, the method comprising: receiving the plurality of first signals having ISI; decoding a first symbol comprising a set of the first signals having ISI to generate a decoded symbol having ISI, wherein the first symbol has (k+1) chips, and k is a natural number; obtaining a vector of error values computed as the difference between the decoded symbol, and the first symbol; generating a temp matrix according to the decoded symbol and the vector of the error values; averaging the values of the elements in every diagonal line of the temp matrix to generate a Toeplitz Matrix; updating the coefficients by the Toeplitz; and canceling the ISI from the decoded symbol with the ISI canceller, using the updated coefficients.