Patent ID: 7127019

Claim:
An apparatus for processing a signal used to communicate a block of data representing at least one symbol, the apparatus comprising: a Fourier transform circuit for performing at least one Fourier transform on said signal; a buffer coupled to said Fourier transform circuit for buffering data produced from an output of said Fourier transform circuit; a jitter compensation filter coupled to said buffer for performing a filtering operation on data obtained from said buffer corresponding to said block of data to generate a filtered block of data, the jitter compensation filter having an update input for receiving a filter coefficient update signal; an error calculation module coupled to the update input of the jitter compensation filter, the error calculation module generating the filter coefficient update signal from at least one signal error estimate made from the filtered block of data output by the jitter compensation filter; and a control circuit coupled to said error calculation module for determining as a function of said at least one signal error estimate, when to output said filtered block of data.