| 摘要 |
PURPOSE:To make the remote control easy to operate possible, by operating two control signal forming circuits simultaneously by the common operating means and by transmitting two control signals from different parts of the control signal transmitter to the device to be controlled. CONSTITUTION:When push-button 2 is depressed, control signal froming circuit 10 outputs control signal SV1, where the carrier wave of frequency f1 is modulated, by the signal indicating the sound volume and the signal indicating the increment of the sound volume. When push-button 3 is depressed, circuit 10 outputs control signal SC1, where the carrier wave of frequency f1 is modulated, by the signal indicating the density of color and the signal indicating the increment of it. In respect to control signal froming circuit 11, when push-button 2 is depressed, circuit 11 outputs control signal SV2, where the carrier wave of frequency f2 is modulated, by the signal indicating the sound volume and the signal indicating the reduction of it; and when push-button 3 is depressed, circuit 11 outputs control signal SC2, where the carrier wave of frequency f2 is modulated, by the signal indicating the density of color and the signal indicating the reduction of it. |
