| 摘要 |
PROBLEM TO BE SOLVED: To display and output information comparatively stably even in emergency. SOLUTION: The information display device 10 possesses an antenna 14 and a receiver 15 and displays/outputs display information received from a radio call (pocket bell) net 5 as well as from display information from subscriber's wired telephone lines 3. In addition, a data converter 16 is installed between the receiver 15 and the controller 12, applying data conversion to the display information received in the receiver 15, from the form of the radio call net 5 (the second form) to the form of the display information of the subscribers' wired telephone lines 3 (the first form), and outputting the converted information.
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