TELEVISION RECEIVER COMPRISING A VIDEO SIGNAL DETECTOR OF A TYPE WHICH DETECTS WITH THE AID OF A REFERENCE SIGNAL

摘要

"Television receiver comprising a video signal detector of a type which detects with the aid of a reference signal". In a television receiver comprising an automatic gain control circuit (17) which receives an output signal from a synchronous (11) and from an asynchronous (57) detector, the asynchronous detector (57) is switched-off in the normal receiving mode by means of a switched-off signal (49) obtained from a receiving mode detector (39).