Patent ID: 6028895
Filing Date: 2000-02-22
Classification: H03H,H04L

Abstract:
A system for equalizing an input signal including a datastream modulated on a carrier, with respect to both transmission channel distortions and local receiver distortions, the system including:a network for frequency downshifting the input signal (to IF);a controlled non-recursive filter (20) for receiving the frequency downshifted input signal;a demodulator (30) for receiving an output signal from the controlled filter;a signal processing network, including a filter network with a transfer function (40,60,80,100) which is the inverse of the transfer function of the controlled filter, responsive to an output signal from the demodulator (30) for producing output control signals; andmeans for coupling the control signals to a coefficient control input of said non-recursive filter for equalizing the signal with respect to both transmission channel and receiver distortion.