Patent ID: 6178198
Filing Date: 2001-01-23
Classification: H04L

Abstract:
In combination for operating upon digital signals provided at a particular frequency, which digital signals have been scrambled and encoded and then converted to analog signals to recover the information represented by such digital signals,first means for providing clock signals at the particular frequency,second means for converting the analog signals to digital signals at the particular frequency,third means responsive to the clock signals and to the digital signals for initially providing a coarse adjustment in the times at which the analog signals are converted to the digital signals to obtain a zero value for the digital signals at the zero crossings of the clock signals;an equalizer for providing signals for eliminating the effects, from each individual one of the digital signals, of the digital signals adjacent in time to such individual one of the digital signals,fourth means responsive to the initial operation of the third means for activating the equalizer, andfifth means responsive to the activation of the equalizer for providing a fine adjustment in the times at which the analog signals are converted to the digital signals to obtain a zero value for the digital signals at the zero crossings of the clock signals.