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:
Sep. 08, 2009
Filed:
Feb. 23, 2005
Elias Bitar, Toulouse, FR;
Nicolas Marty, Saint Sauveur, FR;
Elias Bitar, Toulouse, FR;
Nicolas Marty, Saint Sauveur, FR;
Thales, Neuilly sur Seine, FR;
Abstract
A method of locating difficult access points on a topological map includes: analyzing curvilinear distances using a chamfer mask to catalogue approximate values C(V) of the Euclidean distances separating a point Cof the map from its nearest neighbors V; determining therefrom, at each point Cof the map of curvilinear distances, the discrepancies |DT(V)−DT()| of curvilinear distances separating the point considered Cfrom its nearest neighbors V; comparing these discrepancies with the approximate values C(V); determining the point as a difficult access point based upon a difference between the Euclidean distance and the determined discrepancies of curvilinear distances; and rendering a display of a map indicating difficult to access points.