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. 09, 2004
Filed:
Dec. 21, 2001
Applicant:
Inventors:
Yasuhiro Monde, Tokyo, JP;
Kazuya Tabata, Tokyo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 2/100 ;
U.S. Cl.
CPC ...
G01C 2/100 ;
Abstract
When it is decided that the current vehicle position is outside an area described by map data stored on a CD-ROM -i loaded in a disk storage drive , a disk-switching message is produced for switching the CD-ROM -i to a CD-ROM -j having stored thereon map data describing the area covering the current vehicle position. This makes the user aware of the necessity for switching to the CD-ROM -j having the map data describing the area toward which the vehicle is traveling; hence, reliable navigation information is provided continuously over an extended route to the user's destination.