RECEIVER FOR AM STEREO SIGNALS HAVING A CIRCUIT FOR REDUCING DISTORTION DUE TO OVERMODULATION

摘要

PHD 80180 11 Receivers for AM-signals the carrier frequency or carrier phase being modulated are subject to serious distortions of the phase-mdoulated signal in the event of overmodulation of the carrier. According to the invention, said distortions are suppressed by an overmodulation detector which becomes active when the carrier drops out or at sudden amplitude, frequency or phase transients of the signal, therewith controlling a switch in the signal path of the frequency or phase-modulated signal such, that the signal path is interrupted for the duration of the overmodulation.