Patent ID: 9031182
Filing Date: 2015-05-12
Classification: H03L,H04L

Abstract:
1. A method for clock recovery and data recovery from a data stream on a communication channel, comprising the steps of: sampling a data stream on the communication channel at a sampling frequency determined by a clock signal and generating a sampled signal; determining a phase shift between the communication data stream and the sampled signal; modifying the phase of the clock signal on the basis of the phase shift, to obtain a desired phase difference between the sampled signal and the data stream; wherein determining the phase shift between the sampled signal and the data stream comprises applying the sampled signal and the data stream to two inputs of a phase comparator that supplies an output phase shift signal; and wherein the phase shift signal is applied to a calculation block of a delay time between two edges of the phase shift signal, to supply a signal that is a function of the delay time.