Patent ID: 6133963
Filing Date: 2000-10-17
Classification: H04L,H04N

Abstract:
An apparatus for receiving a television signal which has been provided over a communications path and subjected to path induced distortion, said television signal comprising a reference signal, said apparatus comprising:(a) a tuner means for receiving said television signal;(b) an analog to digital converter for digitizing said television signal; and(c) a processor means for separating from said digitized television signal, said reference signal as distorted by said communications path, and for generating from said distorted reference signal, a plurality of filter coefficients so as to substantially eliminate said path induced distortion from said received television signal;wherein said reference signal at a point prior to its transmission over said communications path, is non-cyclic, has a substantially flat frequency response within the bandwidth of said communications path, and a plurality of substantially uniform amplitude peaks over a time interval.