US Patent 8478332 Receiver for signal communication system with disturbance rejection circuit

A receiver of a signal communication apparatus; the apparatus having a transmitter for transmitting the signals, the receiver for receiving the signals and a galvanically isolated wireless interface interposed between the transmitter and the receiver and having a transmitting antenna and a receiving antenna. The receiver including a disturbance rejection circuit coupled to the receiving antenna and capable of compensating for the parasite currents flowing between the transmitting antenna and the receiving antenna at the potential variations between the input and output of the galvanic isolation interface.