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:
Feb. 23, 1993
Filed:
Sep. 12, 1991
Applicant:
Inventors:
Pierre Lemercier, Saint Martin le Vinoux, FR;
Philippe Trystram, Saint Egreve, FR;
Assignee:
Protee Groupement D'Interet Economique, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
36442402 ; 364449 ; 180168 ; 180169 ;
Abstract
A navigation system for an autonomous vehicle (1). It has a lateral row of detectors (2). The ground has discontinuous buried magnetic markers (3) setting up a localized field which in turn produces an induced current which varies in the detectors (2) in dependence on their position. The markers, formed by magnets (151-155) of selected polarity and number, form magnetic signatures which contain items of information for the vehicle. The on-board vehicle computer (1) can deduce its lateral position and the controls to be carried out to accomplish its mission.