Least mean square (LMS) engine for multilevel signal

Pulse or digital communications – Equalizers

Reexamination Certificate

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C375S230000, C375S231000, C375S232000, C375S233000, C375S234000, C333S018000, C333S02800T

Reexamination Certificate

active

08040943

ABSTRACT:
A method and an apparatus for slicing a multilevel analog signal using a two-level slicer having one threshold level to generate an analog error signal. The method may be performed by delaying a received multilevel analog signal in a plurality of serial analog stages (n), further delaying a multilevel analog signal tapped from stage n, combining the further delayed signal from stage n with an analog error signal e(t) to provide an analog weighting function Wn, wherein the combining of the delayed signal from stage n with Wnresults in a plurality of signals XnWn, summing the plurality of signals XnWn, slicing a multilevel analog signal resulting from the summing of the plurality of signals XnWnusing one threshold level to generate the analog error signal e(t), and combining the delayed signal from stage n with Wn.

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