Patent ID: 7864835
Filing Date: 2011-01-04
Classification: H04L

Abstract:
1. A communications system for receiving a modulated signal that carries encoded communications data, comprising: an adaptive filter having an impulse response and at least one non-adaptive filter tap and a plurality of adaptive filter taps and weighted coefficients; an automatic tap order selection circuit connected to the adaptive filter taps and configured to select a number of adaptive filter taps based on filter performance and modulation, a variable delay circuit disposed between the at least one non-adaptive filter tap and adaptive filter taps and operative for separating the spacing of multipath introduced by the adaptive filter based on the selected number of adaptive filter taps and for producing a filtered output signal; a demodulator for demodulating the modulated signal; a decoder operable to receive the filtered output signal and to decode the signal to obtain the communications data; an input and output at said adaptive filter and a normalizing circuit positioned at said input and output.