| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a receiver apparatus and to reduce cost of a system as a whole, without the necessity to provide a circuit for superimposing a camera control signal or the like on a video signal inside the receiver apparatus. SOLUTION: A camera apparatus 39 and a camera controller 23 are connected by a coaxial cable 14 and voice, a camera control signal and an external control signal superimposing on the video signal are separated by a data separating circuit 7 and outputted to a microcontroller 42. Moreover, in the microcontroller 42, the inputted external control signal is outputted through a communication cable 48 to a mircocontroller 46. Thus, in the microcontroller 46, the external control signal is outputted from an external control signal output terminal 19 to external equipment. Thus, it is not necessary to provide a receiver apparatus 45 with a 75Ωdrive circuit, and the receiver apparatus 45 can be miniaturized.
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