Patent ID: 7254185
Filing Date: 2007-08-07
Classification: H04L

Abstract:
1. A method for recovering a digital data content in a communication system, wherein the digital data content has been converted into an analog signal for transmitting from a transmitter to a receiver through a communication channel, the method comprising: receiving the analog signal by the receiver, converting the analog signal into a sampled digital signal, based on a local sampling clock; performing a interpolation process to interpolate the sampled digital signal at an interpolation point for generating an interpolated digital signal; performing a timing tracking process to determine the interpolation point where the interpolation is to be taken at and determine whether or not the interpolation point is changed and different from the previous determined interpolation point; estimating a channel impulse response described by a set of coefficients based on the interpolated digital signal when the interpolation point is changed; detecting the digital data content from the interpolated digital signal and the estimated coefficients of channel impulse response; performing an update process if the interpolation point has been changed, wherein the update process comprises: