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:
Feb. 24, 2009
Filed:
Aug. 09, 2005
Applicant:
Hiromichi Tanaka, Tokai, JP;
Inventor:
Hiromichi Tanaka, Tokai, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 21/00 (2006.01); G09B 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A map display device includes a display for displaying map data, a position detector for detecting a position of a subject vehicle, a map data storage for storing the map data and a controller for processing the map data. The controller determines whether the subject vehicle is traveling outside of a road on a map displayed on the display based on the current position of the subject vehicle. The controller updates the map data upon receiving an affirmative response for confirmation of an update of a portion of the map data including a path of the current position of the subject vehicle on the map.