Patent ID: 8428464
Filing Date: 2013-04-23
Classification: H04B

Abstract:
1. A method for detecting at least one first input signal superimposed on at least one second signal, the method comprising the steps of: providing said at least one first input signal superimposed on at least one second signal to at least one half-wave rectifier, wherein the at least one half-wave rectifier comprises at least one optoelectronic device; applying at least one bias voltage to at least one electrical input of said at least one optoelectronic device; selecting a magnitude of said at least one bias voltage equal to an extinction voltage of said at least one optoelectronic device; transforming, in said at least one half-wave rectifier, said at least one first input signal superimposed on at least one second signal into a half-wave rectified signal; providing said half-wave rectified signal to an envelope detector; and transforming, in said envelope detector, said half-wave rectified signal into an envelope signal.