Patent ID: 6418373
Filing Date: 2002-07-09
Classification: G01C

Abstract:
A navigation system comprising:path searching means for searching a travel path from a departure point to a destination; guiding means for guiding a recommended travel path based on a search result of the path searching means; path information collecting means for collecting path information of a leaving path that is taken deviating from the recommended travel path; path information storing means for storing the path information collected by the collecting means; path replacing means for replacing a part of the recommended travel path with the leaving path when the leaving path starts and ends at the recommended travel path and the path information is stored in the path information storing means, so that the recommended travel path is modified to include the leaving path therein; departure point changing means for changing the departure point to a start point of the leaving path, when the start point of the leaving path is within a predetermined distance from the point of departure and stored in the path information storing means; and destination changing means for changing the destination to an end point of the leaving path, when the end point of the leaving path is within a predetermined distance from the destination and stored in the path information storing means.