| 摘要 |
PURPOSE:To control air-conditioning devices individually by individual remote controllers if the air-conditioning devices of the same type are installed on the same room (there are many such opportunities in the case of a small air- conditioning equipment) by transmitting different carriers with a single remote controller. CONSTITUTION:A microcomputer 3 selects the codes of carriers of predetermined types of high frequencies by depressing a key switch 5 and outputs the signals to an amplifier 7. At this time, when a switch 9 is closed, an oscillating frequency of the second oscillating circuit 10 deciding the oscillating frequency separate from an oscillating element 4 is switched as the carrier by the second oscillating element 11 and a frequency dividing circuit 12 to emit the light of a light emitting element 6. When the switch 9 is opened, the oscillating frequency of the original oscillating element 4 is made a carrier frequency in an operation.
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