improvements relating to the reduction of the interference for the reception without wire and improvements relating to the treatment of a signal code by means of frequency

摘要

The device has a frequency converter (52) to change a received communication signal (62) into a complex baseband signal, in which components of frequency shift keying (FSK) modulation have positive and negative frequencies, respectively. A polarization detector (100, 102, 104) senses a polarization of baseband signal and generates a polarization signal to establish a distinction between the components of the modulation. Independent claims are also included for the following: (a) a communication signal receiver (b) a process for processing components coded by displacement of frequency (c) a device for processing a received communication signal (d) a process of treating a received communication signal.