| 摘要 |
PROBLEM TO BE SOLVED: To avoid malfunction of a receiving device for receiving radio signals with electric power fed from a power supply device as the driving power when a wire is broken while the receiving device is used. SOLUTION: The receiving device 1 comprises a first connection terminal 10 electrically connected to a second connection terminal 19 in the power supply device 2 for inputting the driving power, a disconnection determining part 13 for determining whether there is a disconnection or not between the first connection terminal 10 and the second connection terminal 19, and a notification part 14 for giving a notice according to the result of determination by the disconnection determining part 13. The disconnection determining part 13 detects the potential of the first connection terminal 10 by a potential detection part 15 disposed inside, and determines whether there is the disconnection or not by determining whether the detected potential is at least a prescribed threshold or not by a determining part 16. A user of the receiving device 1 can detect the disconnection as the notice is given by the notification part 14 according to the result of determination. COPYRIGHT: (C)2006,JPO&NCIPI
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