Patent ID: 7573966

Claim:
A system for processing digital signals comprising symbols propagated according to a period, the system comprising: a signal conditioning filter comprising: a first stage for mitigating degradations of the digital signals that occur according to a first time scale, the first stage comprising a first analog filter tuned to the first time scale, the first time scale comprising a fraction of the period at which the symbols are propagated, and a second stage for removing signal distortions that occur according to a second time scale, the second stage comprising a second analog filter tuned to the second time scale, the second time scale being different than the first time scale and comprising a magnitude at least equal to the period at which the symbols are propagated; and a signal integrity unit coupled to an output of the second stage, the signal integrity unit comprising a third analog filter stage for producing an analog probability estimate, the signal integrity unit analyzing the analog probability estimate and adjusting the first and second time scales based on the analysis of the analog probability estimate.