| 摘要 |
<p>PURPOSE: To automatically turn on/off a power source of a transmitting means on the side of a receiver part by turning on/off a power source to be supplied to a radio signal receiving means of the remote controller. CONSTITUTION: When a switch 25 of the sound remote controller 2 is set to the lower side, the power source to be supplied to an FM signal receiving circuit 26 is stopped, whereas this is detected by a microcomputer 22 to transmit a signal showing a changeover of the switch from a remote control transmitting part 21 with an infrared ray. Then, the signal from the transmitting part 21 is received by a VTR 1 with a light receiving part 17, and this is supplied to a microcomputer 16, and hence a switching transistor 13 is turned off by the microcomputer 16 so that the power source to be supplied to an FM signal transmitting circuit 14 is also cut off.</p> |
