Patent ID: 7339989
Filing Date: 2008-03-04
Classification: H04L

Abstract:
1. An equalizer configured to compensate for the effects of a communication channel on received data, the equalizer comprising: a first filter that receives in-phase hard decision samples corresponding to an equalized signal, the first filter configured to generate a first filtered signal of the in-phase hard decision samples according to a first set of filter parameters; a first adaptation engine that receives a quadrature hard decision sample corresponding to the equalized signal, the first adaptation engine configured to update the first set of filter parameters based on the quadrature hard decision sample and the in-phase hard decision samples, wherein the first adaptation engine implements a filter coefficient update equation given substantially by W a summing device that receives a data signal and the first filtered signal, the summing device configured to subtract the first filtered signal from the data signal to generate the equalized signal.