Patent ID: 7266448
Filing Date: 2007-09-04
Classification: G01C

Abstract:
1. A method for searching a return path of a moving object for use in a navigation system, the method comprising: searching and storing an original driving path of the moving object, and guiding the moving object along the searched driving path; deciding whether the moving object is deviated from the driving path; deciding a start point and return points for returning the moving object on the original driving path, when the moving object is deviated from the driving path; deciding a shortest path as an optimum return path, after searching respective paths from the start point to the return points; and guiding the moving object to the original driving path along the decided return path, wherein the start point of the moving object on a deviated path is a present position of the moving object or a position that a user of the moving object inputs, and the return points include adjacent return points that are a fixed distance between points to to a position that corresponds to a deviation point used as a reference for the driving path of the moving object multiplied by a predetermined constant.