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:
Mar. 12, 2002
Filed:
Oct. 01, 1999
Toshiki Kusama, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention is adapted to a navigation device which performs 3 dimensional display when approaching an intersection. The navigation device of the present invention comprises a map database which stores a number of vehicle lanes of a road which enters an intersection, a road width display database which decreases each vehicle lane width and increases the width of the total road depending on a number of vehicle lanes on a road, a road width display data extraction portion which extracts a number of vehicle lanes of a road which enters a corresponding intersection from a map database when approaching an intersection and which extracts road width display data corresponding to an extracted number of vehicle lanes from that road with display database a display which carries out display based on said extracted road width display data. In this way, it is easy to directly understand the number of vehicle lanes and such a display is easy to view.