Patent ID: 6111920
Filing Date: 2000-08-29
Classification: H04L

Abstract:
In a digital transmission system having a data stream sampled with a sampling interval T, the sampled data stream having a plurality of sample values, the sample values having a plurality of sample bits, a method of baud-rate timing recovery, the method comprising the following steps:interpolating the sample values from the data stream to create a first offset values forward in time from said sample value;interpolating the sample values from the data stream to create a second offset values backward in time from said sample value;applying a first timing metric to the first offset value to create a first metric value;applying a second timing metric to the second offset value to create a second metric value;applying a timing recovery metric to the first and second metric values to create a timing recovery value; andapplying the timing recovery value as a feedback value for baud-rate timing recovery.