Patent ID: 8477680

Claim:
A method for real-time processing of modulated data transmitted in the form of multiplexed frames containing symbols that have a symbol frequency, comprising: a frame selection processing operation performed at least partly at a working frequency below the symbol frequency; and a demodulation processing operation at least in part performed at the working frequency on the selected frames; wherein the symbols are sampled at a sampling frequency and the demodulation of such a frame comprises a predemodulation processing operation including a determination of the symbols based on the samples, and a final demodulation processing operation performed on the symbols and wherein said frame selection processing operation comprises: performing the predemodulation processing operation on all received frames, each received frame including a header; determining, at the working frequency, predemodulated frames to be selected, from their respective headers; and storing at least the selected predemodulated frames in a memory at a storage frequency below the symbol frequency, and further wherein said demodulation processing operation comprises performing, at the working frequency, the final demodulation processing operation on the selected predemodulated frames.