Patent ID: 8654896
Filing Date: 2014-02-18
Classification: H04L

Abstract:
1. A method of recovering a clock signal from a digital signal in a receiver, the method comprising: generating a representation of an eye diagram from a plurality of symbols of said digital signal, wherein said plurality of symbols are sampled at a sample rate such that said representation of said eye diagram is generated by a plurality of samples; converting said generated representation into an array of data elements, said array having a first set of data corresponding to said plurality of samples, and a second set of data representing a plurality of data bins, wherein each of said plurality of data bins includes a bin count; performing a plurality of measurements on said array of data elements and/or said representation of said eye diagram to obtain a plurality of measurement outputs corresponding to said plurality of samples; combining said plurality of measurement outputs at each sample; and selecting a sample as a clock sample based on results of said combination; wherein said step of performing measurements includes modifying said plurality of measurement outputs, and said modifying said plurality of measurement outputs includes normalising said outputs such that said outputs are of the same unit scale.