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:
May. 18, 2021
Filed:
Dec. 31, 2010
Sjoerd Aben, Alkmaar, NL;
Teun DE Haas, Utrecht, NL;
Erik Thomassen, Amsterdam, NL;
Breght Boschker, Hilversum, NL;
Sjoerd Aben, Alkmaar, NL;
Teun De Haas, Utrecht, NL;
Erik Thomassen, Amsterdam, NL;
Breght Boschker, Hilversum, NL;
TOMTOM NAVIGATION B.V., Amsterdam, NL;
Abstract
The present invention provides a method of determining a route between two locations in a navigation device by calculating the cost of paths between the two locations using a cost function. The cost function applies different weighting factors for the same type of attribute to line segments when the line segments are located in different areas of a map. As such, when the cost of a path is being assessed, the same type of attribute may be associated with different levels of penalty or bonus in different areas. This means that the route determined is less likely to avoid line segments that have a certain negative attribute in areas where the attribute has a less adverse affect.