Route search method in navigation system
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United States of America Patent
Stats
-
Apr 1, 2003
Grant Date -
Sep 19, 2002
app pub date -
Mar 13, 2001
filing date -
Mar 13, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A route search method in a navigation system in which POI (Point of Interest) information regarding POIs is incorporated in map information and a route up to a specified POI is searched for. When a POI has a plurality of gateways, identification data for road links connected respectively to the gateways is incorporated in the POI information. When a certain POI is set as the destination, the navigation system refers to the POI information and checks whether a plurality of road links are stored corresponding to the set POI. If so, the system searches for a route up to each of the road links, and determines an optimum one of the found routes as the guide route.
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