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:
May. 02, 1989
Filed:
Jun. 11, 1987
Ikuo Musa, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A navigation apparatus for a vehicle comprising means for previously introducing and storing the coordinate data and place names of a plurality of spots and means for computing the present location of the vehicle, so that the position and place name of a spot close to the present location of the vehicle are displayed, and the present location of the vehicle may be set by introducing the place name when the vehicle is positioned at any one of the close spots, and a spot, such as a garage, where the vehicle usually parks for along time is pre-registered, so that, when the vehicle is positioned at the registered spot, a switch is operated, and, when the vehicle stops at the spot for a predetermined duration or more or over a duration including a predetermined interval, the locational data of the registered spot is taken as the present location of the vehicle, thereby correcting accumulated errors at the present location of the vehicle.