The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 2002
Filed:
Feb. 28, 2001
Lutz Tiede, Lappersdorf, DE;
Jürgen Leimbach, Regensburg, DE;
Mannesmann VDO AG, , DE;
Abstract
The invention provides a method of routing using an offboard navigation system for motor vehicles, in which road points, at which there is a road junction, and also the road distance between adjacent road points on a calculated route are stored in a memory element in the vehicle. Preferably, only those road points which are also turnoff points are stored. The distance from the next turnoff point at which a turnoff maneuver is to be effected is determined by comparing the distance covered since the last turnoff point with a stored value for the road distance between the adjacent turnoff points. If a minimum value for the distance from the next turnoff point has not been reached, a driving instruction is output. The method requires only a small volume of data and an odometer for position finding.