| 摘要 |
PURPOSE:To improve operation efficiency with required operation time shortened by connecting a capacitor in parallel to an operation switch or each resistor connected to the operation switch. CONSTITUTION:One-side terminals of operation switches 1 to 8 are connected to power supply 23, and the other-side terminals are to earth resistors 9 to 16 and coder 17. Coder 17 converts the (m)-number inputs into a (n)-bit digital signal, which is passed through parallel-series converter 18, a modulator and transistor 22 to control transmitting infrared-ray emitting diode 20. Then, operation switches 1 to 8 are provided to capacitors 32 to 39 in parallel. Consequently, when the same signal is sent out twice to prevent malfunction, the signal is sent out automatically from the 2nd time by the charge currents of capacitors 32 to 39 even if the operation time of the operation switches is equivalent to single operation, so that the operation time can be reduced to half. |
