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. 15, 2012
Filed:
May. 14, 2009
Applicant:
Tomokazu Kobayashi, Kariya, JP;
Inventor:
Tomokazu Kobayashi, Kariya, JP;
Assignee:
DENSO CORPORATION, Kariya, unknown;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A navigation apparatus calculates a current position candidate of a vehicle based on absolute position information, and calculates a travelable area based on road width data and the like, and further calculates a center locus of the travelable area and an estimated position of the vehicle. The estimated position of the vehicle is then evaluated based on a distance between the estimated position and the center locus to yield a position candidate evaluation for displaying a current position mark on a displayed map.