Patent ID: 7852912
Filing Date: 2010-12-14
Classification: H04L

Abstract:
1. A method for compensating for the deterministic effects of a transmission channel on an input data signal provided by a data source to an input of the transmission channel; the method utilizing a direct determination equalizer system (“DDES”) having an equalizer, the method comprising: acquiring a channel output data signal, comprising a sequence spanning multiple bits from an output of the transmission channel; determining an ideal data signal; cross-correlating the channel output data signal and the ideal data signal to produce a cross-correlation sequence comprising a plurality of terms, each term in said cross-correlation sequence corresponding to a different delay between said channel output data signal and said ideal data signal; determining the delay corresponding to the largest value of the cross-correlation sequence; determining equalizer-tap coefficients for the equalizer, the equalizer-tap coefficients depending on the determined delay; and generating an equalized output data signal by applying the equalizer to an output of the transmission channel; wherein determining the ideal data signal comprises sampling either the input data signal provided by the data source to the input of the transmission channel or the output data signal acquired from the output of the transmission channel to generate said ideal data signal.