| 摘要 |
PURPOSE:To inform of the effect without fail only when a receiving device carrying person goes from a portable allowance by providing a second transmitter to transmit common calling information to be able to be detected by a receiver wholly at a prescribed position where the receiver carrying person goes in/out over the portable allowance. CONSTITUTION:An informing part 17 is equipped with a display and a voice output device to inform a receiver carrying person of the effect when selection calling information or common calling information is received. A receiver always receives with a frequency f1, and when data are received, the equipment checks whether or not the data are the common calling information. When the receiver carrying person is at an electric wave arrival range 4 of a first transmitter 1, the selection calling information is detected, and when the person himself is called, the informing is executed by the informing part 17. On the other hand, when the receiver carrying person crosses an electric wave arrival range 5 of a second transmitter 2, the common calling information is detected, and the effect that the carrying person goes to the outside of the receiver carrying allowance can be informed to the receiver carrying person by the informing part 17. |
