| 摘要 |
PROBLEM TO BE SOLVED: To attain exact and stable apparatus control by removing an interference signal such as switching power noise, in a carrier type remote-controlled system. SOLUTION: This carrier type remote-controlled receiver includes a tuned amplifier 22 which is tuned to carrier wave frequency, an A/D converter 24 for A/D converting the output of the tuned amplifier 22, a microprocessor 25 decoding data from the digital output of the A/D converter 24, and a control circuit 26 for controlling an apparatus by the output of the microprocessor 25, wherein a high selectivity filter 32 having high selectivity for the carrier wave frequency is inserted between the output side of the tuned amplifier 22 and the input side of the A/D converter 24.
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