| 摘要 |
PROBLEM TO BE SOLVED: To provide a remote controller enabling communication between respective remote control units without newly interconnecting the remote control units. SOLUTION: Voice signals converted in microphones 41 and 51 are converted to digital signals, the voice signals are inserted to the free part of the time slot of control data and the communication is performed between a kitchen remote controller 2 and a bath remote controller 3 without newly laying a signal line.
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