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:
Apr. 14, 2025
Filed:
Feb. 13, 2020
New Jersey Institute of Technology, Newark, NJ (US);
Max-planck-gesellschaft Zur Förderung Der Wissenschaften E.v., Munich, DE;
Craig Gotsman, Jersey City, NJ (US);
Renjie Chen, Saarbrucken, GB;
New Jersey Institute of Technology, Newark, NJ (US);
Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., , DE;
Abstract
A method and system that utilizes an admissible heuristic to determine the fastest-path between two points on a road map is disclosed. The method and system are based in part on a set of separators disposed on the map and represented by line segments, either independent or organized into hierarchical tree structures and based on recursive spatial subdivision. A preprocessing step computes a vector of values per road junction based on the separators that is then stored with the map and used to efficiently compute a high-quality heuristic to be used at a query stage. The heuristic scales well to any map size, resulting in a very efficient determination of fastest-path queries between points at all distances. The implementation is economically feasible and the resulting query speeds are significantly faster than other known heuristics and other state-of-the-art systems used for computing fastest-paths on maps.