Patent ID: 7184498

Claim:
A device for the digital demodulation of a signal received in respect of a digital communication receiver comprising: a sampling stage configured to sampling the signal received with an oversampling factor of P samples per symbol; a chopper stage configured to chop the oversampled signal into successive blocks of samples; and means for correcting, for each block, a sampling instant, which means for correcting the sampling instant including, a polyphase filter comprising a set of N distinct elementary digital filters, and means of selecting an elementary digital filter, a decimating stage configured to select samples in each block on completion of the digital filtering implemented by the polyphase filter, means for determining samples to be selected during the processing of each block in the decimating stage, said means for determining the samples to be selected including means for computing an error signal for each filtered block, and means for evaluating the error signal suitable for determining the samples to be selected in the relevant block, wherein the means for computing an error signal is coupled to the means for selecting the elementary digital filter to be implemented and to the means for determining samples to be selected.