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:
Jan. 02, 2018
Filed:
Jul. 01, 2013
Applicant:
Tomtom Development Germany Gmbh, Leipzig, DE;
Inventors:
Assignee:
TOMTOM NAVIGATION B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/34 (2006.01); G01C 21/36 (2006.01);
U.S. Cl.
CPC ...
G01C 21/3446 (2013.01); G01C 21/3469 (2013.01); G01C 21/3476 (2013.01); G01C 21/3679 (2013.01);
Abstract
Embodiments of the present invention provide a one-to-many route searching method comprising searching map data to select links to form a plurality of routes from a departure node according to a cost function, and determining an extent of each route according to an objective function, wherein the searching of the map data is performed to a search boundary based upon a cost of an unreachable node.