| 摘要 |
PROBLEM TO BE SOLVED: To improve operability by displaying other contents, even without having to track back a screen transition of a hierarchical structure. SOLUTION: A distribution system comprises a vehicle-mounted unit, a road-side radio device connected to the vehicle-mounted unit through radio communications, and a center device for distributing contents to the vehicle-mounted device via the road-side radio device. The center device distributes identification information, indicating whether the contents includes information codes which are uniquely allotted to the other contents. The vehicle-mounted unit is provided with a determination means for determining whether the contents includes the information codes uniquely allotted to the other contents, on the basis of the identification information. COPYRIGHT: (C)2010,JPO&INPIT |
