Patent ID: 8548038

Claim:
Apparatus for generating data from an input signal received from a channel, the apparatus comprising: a linear equalizer configured to apply feed-forward equalization to symbols of the input signal based upon a set of feed-forward equalizer parameters; a decision feedback equalizer configured to apply decision feedback equalization to the feed-forward equalized symbols of the input signal based upon a set of decision feedback equalizer parameters, the decision feedback equalizer comprising a decision device configured to generate decisions for the feed-forward equalized symbols of the input signal; and an adaptation and freeze circuit configured to: adaptively generate the set of feed-forward equalizer parameters and the set of decision feedback equalizer parameters, detect a presence of at least one data pattern in the symbols of the input signal, and generate a freeze signal during the detected presence of the at least one data pattern, wherein the adaptation and freeze circuit disables adaptation of one or more of the set of feed-forward equalizer parameters and the set of decision feedback equalizer parameters based on the freeze signal.