摘要 |
A specific ID code of a transmitter 3 is registered in a receiver 4 in the following procedure. A commander 5, which is connected to the receiver 4 with a cable 6, is located close to the corresponding transmitter 3. An operation switch 7 of the commander 5 is then depressed. The commander 5 transmits an instruction signal to the transmitter 3 and the turned-on state of the operation switch 7 is conveyed to the receiver 4 via the cable 6. The transmitter 3 wirelessly transmits a response signal including the ID code in response to the instruction signal. On the other hand, upon receiving the response signal from the transmitter while the commander 5 is conveying the turned-on state of the operation switch 7, the receiver 4 stores the ID code in the received response signal. Therefore, the ID code of each transmitter is easily registered in the receiver 4.
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