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:
Jul. 11, 2000
Filed:
Mar. 27, 1997
Yuichi Abe, Tottori, JP;
Sanyo Electric Co., Ltd., Osaka-fu, JP;
Tottori Sanyo Electric Co., Ltd., Tottori-ken, JP;
Abstract
In a navigation device, the map information read by a map information reproduction device is displayed on the display device, and an intersection which the vehicle approaches is enlarged. The enlarged display of an intersection is continued if the speed of the vehicle is not more than a predetermined value even when the disk is moving away from the intersection. A place at which the classification of road changes may be treated like an intersection. An exclusion key may be provided for designating, during simulation, an intersection to be excluded from the enlarged display. During simulation, the vehicle may be slowed, or stopped when it is near an intersection to permit full examination. A multi-disk reproduction device may be used to selectively reproduce map information from a first disk for storing map information of a first area, and a second disk for storing map information of a second area. If, in the state in which the first disk is selected, the vehicle moves to the second area, the disk storing map information of the second area is automatically selected.