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:
Sep. 24, 1996
Filed:
Jul. 23, 1993
Toru Ito, Nagoya, JP;
Hiroshi Kishi, Toyota, JP;
Mitsuhiro Nimura, Okazaki, JP;
Akimasa Nanba, Chiryu, JP;
Kyomi Morimoto, Nishio, JP;
Shigekazu Ohara, Chiryu, JP;
Shoji Yokoyama, Anjo, JP;
Kazuteru Maekawa, Nishikamo-gun, JP;
Kiyohide Katoh, Chiryu, JP;
Hiroyoshi Masuda, Nagoya, JP;
Shinichi Katoh, Anjo, JP;
Koji Hashimoto, Kariya, JP;
Aisin Aw Co., Ltd., Anjo, JP;
Abstract
A route guidance section compares the current position provided by a current position determination section and the route provided by a route calculation section for detecting an off-route condition. When the off-route condition is detected, a researching key as well as the route and current place is displayed on a display section. When the researching key is touched, a search is again made for a new route from the current position to the destination. Then, route guidance is again started in response to the researching result. When the researching key is not touched, the route and current place continue to be displayed while the vehicle carrying the apparatus travles off route, thereby efficiently preventing the apparatus from executing unnecessary researching when the driver drives the vehicle off route on purpose.