Patent ID: 6202075
Filing Date: 2001-03-13
Classification: G06T,H04L

Abstract:
An adaptive filter employing a least mean squared (LMS) error correction arrangement to reduce the amplitude of error signals generated corresponding to received signals, said adaptive filter comprising:a tapped delay line configured to multiply a plurality of delayed versions of said received signal by a corresponding variable tap coefficient signal so as to generate the output signal of said adaptive filter;a plurality of signal feedback loops coupled in parallel, each said feedback loop having a correlation multiplier, a loop filter and an integrator coupled in series, each said feedback loop configured to generate said variable tap coefficient signal as a function of said error signals;each said loop filter configured to generate a signal corresponding to the sum of a signal received by said loop filter and the integral of said signal received by said loop filter; andsaid filter configured to generate said error signal corresponding to the difference between said output signal of said filter and a reference signal.