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. 06, 2021
Filed:
Jul. 28, 2017
Applicant:
Tomtom Navigation B.v., Amsterdam, NL;
Inventors:
Lauri Koponen, Amsterdam, NL;
Rui Sun, Amsterdam, NL;
Assignee:
TOMTOM NAVIGATION B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/30 (2006.01); G01C 21/32 (2006.01); G01C 21/20 (2006.01);
U.S. Cl.
CPC ...
G01C 21/30 (2013.01); G01C 21/32 (2013.01);
Abstract
An advanced map matching algorithm is disclosed, which embeds the road topology inherently in a set of path candidates. Road connectivity is maintained even in special situations such as U-turns, reverse driving, and tunnels. Careful path candidate management is designed to reduce the candidate count while preserving well-matching candidates. Paths are treated and evaluated independently using multiple criteria, which makes the algorithm reliable and robust in different scenarios.