Broadcasting system discriminating television receiver for differentiating between analog and digital telecast signals

摘要

A broadcasting system discriminating television receiver includes a circuit which applies the FM demodulation discrimination on the output of the FM demodulator in an analog broadcasting, or a circuit which applies a video signal discrimination on a video output which is connected to a circuit which applies an I/Q wave detection on the output of an I/Q detector or a circuit which applies a video signal discrimination on a video output, and means for controlling a signal selector switch (SW) after the channel selector judging from the result of the discriminator.