Stereo identifying signal detection device

Details Stereo identifying signal detection device Stereo identifying signal detection device

H - Electricity

04

B

325/73

H04B 1/16 (2006.01) H04H 5/00 (2006.01)

Patent

CA 1173911

ABSTRACT OF THE DISCLOSURE A stereo identifying signal detection device, with a circuit for phase detecting a received stereophonic broad- cast signal and detecting a stereo identifying signal, an exclusive OR circuit for generating a pulse for every half cycle period of the detected stereo identifying signal, and a control circuit for integrating the pulse signal thus generated to obtain a DC voltage used to turn on a stereo receiving state indicating lamp.

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