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:
Dec. 30, 1997
Filed:
Jul. 18, 1995
Naoko Takanabe, Hyogo, JP;
Ichiro Tanaka, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A navigation system comprises a vehicle position detecting unit for determining the present position of a vehicle from the amount of change in vehicle bearing and a distance traveled by the vehicle, a forward road data storage unit for reading a road existing ahead of the present vehicle position from a map data storage unit based on the present vehicle position detected by the vehicle position detecting unit and storing it therein as data, a change-in-road detecting unit for detecting a change-in-road section in which the orientation of the road greatly varies, from the stored forward road data and judging whether the change-in-road section exists within a range in which a notification is required, and a notification unit for notifying the present vehicle position to a driver and notifying a change-in-road section in which the notification has been judged necessary, to the driver.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile