RECEIVER DEVICE FOR RECEIVING USE OF CABLE TRANSMISSED TELEVISION TRANSMISSIONS WITH A PORT CIRCUIT

摘要

Reception apparatus for reception of television transmissions transmitted by cable has a gate circuit to avoid the reception of foreign radio services. After the image-MF-demodulator there is an impulse buffer stage 17 which supplies the line synchronisation impulses to a filter circuit 18 matched to these, which generates the signal for opening the gate circuit. IMAGE