Patent ID: 7292646
Filing Date: 2007-11-06
Classification: H04B,H04L

Abstract:
1. An apparatus for a synchronous demodulation of a received signal that is phase shift keyed in N steps, where N is a phase step number, with the aid of at least one received signal parameter derived from the received signal and at least one carrier signal parameter corresponding to a recovered carrier, comprising: a demodulator for generating at least one third data signal parameter from at least one received signal parameter and at least one carrier signal parameter by way of synchronous demodulation and digitization, the third data signal parameter corresponding to a third data signal; a phase angle comparator connected to said demodulator, said phase angle comparator detecting phase jumps of the recovered carrier signal in quantized form from at least one carrier signal parameter; and a coding unit connected to said demodulator and to said phase angle comparator, said coding unit taking into account in quantized form the phase jumps in a differential decoding of the third data signal parameter.