| 摘要 |
<p>PURPOSE:To constitute the subject device at low cost by sending a signal obtained by superimposing a control signal over a sound signal through a sound signal cable and separating the signal into the sound signal and the control signal in a VTR for the opposite party. CONSTITUTION:The control signal outputted from a microcomputer 2A on the side of a VTR 1A is superimposed over the sound signal from a sound processing circuit 4A by a superimposing circuit 3 to be sent to a separating circuit 5 on the side of the VTR 1B. The circuit 3 and the circuit 5 are connected by the sound signal cable 7. In the circuit 5, the supplied superimposed signal is separated into the sound signal and the control signal, and the sound signal is supplied to a sound processing circuit 4B, while the control signal is supplied to a microcomputer 2B. By this constitution, the need for a dedicated control cable is eliminated, and the device can be constituted at low cost.</p> |
