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. 23, 2004
Filed:
May. 01, 2000
Koji Kawasaki, Kariya, JP;
Motohiro Fukumoto, Toyoake, JP;
Masatoshi Abou, Toyota, JP;
Takashi Ichida, Anjo, JP;
Kazuyoshi Yamada, Kariya, JP;
Denso Corporation, Kariya, JP;
Abstract
A map display device, which imparts a perspective feeling to a route guidance line so that it can be easily viewed, when buildings and roads are three-dimensionally displayed. A map display device having a control unit for three-dimensionally displaying a map and further three-dimensionally displaying a route guidance line on a road on the map. When the route guidance line is hidden by a building, the control unit displays overlapped portion of the route guidance line in a color different from the color of the portions that are not overlapping. In particular, the control unit draws picture by a semitransparent method in which the color displaying the route guidance line and the color displaying the building are alternately changing with a pixel as a unit on the video RAM (VRAM). In this case, a positional relationship becomes clear between the route guidance line and the building, and the route guidance line can be seen more clearly.