| 摘要 |
PROBLEM TO BE SOLVED: To provide a receiving device of a road traffic information system for a vehicle, that provides a user by selecting information transmitted with an air propagation media of a plurality of different transmission systems in response to liking of the user. SOLUTION: Road traffic information provided to the user out of pieces of the road traffic information transmitted from two kinds of electric wave beacons in which frequency bands of the transmission electric waves are different can be selected in response to the liking of the user. Thereby the road traffic information transmitted from the two kinds of the electric wave beacons is provided to the user in voice and screen display for both, and only any one can be provided to the user in the voice and screen display. COPYRIGHT: (C)2007,JPO&INPIT |
