CABLE BROADCASTING SYSTEM, CABLE BROADCASTING TRANSPORT APPARATUS, CABLE BROADCASTING RECEIVER, OPENCABLE BROADCASTING RECEIVER, AND CABLECARD

摘要

A cable broadcasting system, a cable broadcasting transmitter, a cable broadcasting receiver, an open cable broadcasting receiver and a cable card are provided to individually adjust the sensitivity of a cable broadcasting signal received from the cable broadcasting receiver. A broadcasting signal producing member(110) produces a cable broadcasting signal for a cable broadcasting receiver(200). A sensitivity control signal generating member(120) generates a sensitivity control signal for controlling the sensitivity of the cable broadcasting signal outputted from a sensitivity control member(210) of the cable broadcasting receiver. A transmission side transmitting member(130) transmits the sensitivity control signal to the cable broadcasting receiver through a cable network. A transmission side receiving member(140) transmits the received signal sensitivity information to the sensitivity control signal generating member.