Multiplex transmission system and apparatus therefor.

摘要

It is intended that a plurality of signals including a power source and a video signal are transmitted through a coaxial cable without deteriorating the characteristic of the video signal. The video signal is transmitted in its base band from a video signal sending-out circuit (19). A sync signal and a remote control signal are modulated by modulators (5, 6) at different predetermined frequencies and these modulated signals are transmitted via a filter (7). The transmitted modulated signals are separated into the corresponding frequency components which are demodulated into the original signals by demodulators (17, 18) into the original signals. A power source, after it is regulated into a constant current, is transmitted. It is impedance-converted and regulated into a stabilized constant voltage to be applied to a load (24). <IMAGE>