| 摘要 |
PROBLEM TO BE SOLVED: To obtain a device capable of confirming the parking position of one's own vehicle by displaying and operating through the use of a transmitter and a receiver opposed to each other by radio or calling the number of a portable telephone set for display and operation through the use of the receiver attaching the receiving circuit of the portable telephone set in a parking space of a large capacity. SOLUTION: A receiver which can be operated by radio wave, etc., is installed on one's own vehicle. By operating a transmitter opposed to this receiver to transmit a modulated wave, the receiver operates to display a mark such as a red lamp and the owner of the vehicle visually recognizes this mark to confirm its position. Further, a receiver attached with the receiving circuit of a portable telephone set is installed at the vehicle and at the time of calling the number of the portable telephone set, the receiver operates to display a mark 8 to allow the owner to visually recognize this mark to confirm the position of one's own vehicle.
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