Information terminal device and method for route guidance

Abstract

In an information terminal device, a processor receives route information on a route from a start point to a destination and guidance information required for route guidance, in accordance with a standard communications protocol. The processor guides the route from the start point to the destination through an information presentation part by using first cartographic data having a basis on the received route information and the guidance information. The processor requests, as required, a specific information service center for point information in a tag format showing details of each important point (POI) on the route through an information request part. As a result, the processor receives the point information on the important point from the information service center in accordance with the standard communications protocol. The processor presents the received point information on the important point simultaneously with a map based on the first cartographic data to clearly indicate each of the important points on the route. With the aid of the tag format, the information terminal device is capable of receiving, using the standard communications protocol, various information in the suitable format for the route guidance.

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