Patent ID: 7031383
Filing Date: 2006-04-18
Classification: H04L

Abstract:
1. An apparatus including a compensation circuit for reducing intersymbol interference (ISI) products within a data signal, comprising: an input terminal that conveys an input data signal including a first plurality of ISI products and corresponding to a detected data signal received via a signal transmission medium; an output terminal that conveys an output data signal including a second plurality of ISI products which is smaller than said first plurality of ISI products; first adaptive equalization circuitry, coupled to said input terminal, that adaptively equalizes said input data signal to provide a first equalized signal; equalization and processing circuitry, coupled between said input and output terminals, that selectively equalizes and processes said input data signal and at least a portion of said output data signal to provide a processed signal, and includes signal combining circuitry, coupled to said first adaptive equalization circuitry and said equalization and processing circuitry, that receives and subtracts said processed signal from said first equalized signal to provide a resultant signal; and output processing circuitry, coupled between said signal combining circuitry and said output terminal, that processes said resultant signal to provide said output data signal.