Patent ID: 8107573

Claim:
A baseline wander (BLW) compensation apparatus, comprising: a BLW compensator for receiving an input signal and thereby generating an output signal based on a compensation signal; a slicer, coupled to the BLW compensator, for generating a slicing signal based on the output signal; an error signal generator, interposed between the BLW estimator and the slicer, for receiving the input signal and the slicing signal and generating an error signal based on a combination of the slicing signal, an output from a first modulus unit, and the input signal; a BLW estimator, coupled between the error signal generator and the BLW compensator, for generating the compensation signal based on the error signal; wherein the BLW estimator further comprises: a filter, coupled to a non-unity weighting unit, for accumulating a weighted error signal; generated at different time and thereby outputting a filtering signal; and a divider, coupled to the filter, for generating the compensation signal according to the filtering signal.