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. 19, 1995
Filed:
Jul. 19, 1993
Hiroshi Kishi, Toyota, JP;
Toru Ito, Toyota, JP;
Kyomi Morimoto, Nishio, JP;
Shoji Yokoyama, Anjo, JP;
Kenji Kuroda, Sabae, JP;
Kiyohide Katoh, Chiryu, JP;
Masanari Yamamoto, Handa, JP;
Aisin AW Co., Ltd., Anjo, JP;
Abstract
A vehicle route guidance system includes a map information storage section 10 which has a road type storage section 10a for storing various types of roads such as toll roads, express highways and motorways. A route guidance control section 26 reads out map information including road type information and route information. A road type change point detecting section 26a detects a road type change point. The route guidance control section 26 causes a display 28 and a voice controller 30 to perform the route guidance when a vehicle approaches a point a given distance short of the road type change point. The voice controller 30 responds to the instruction from the route guidance control section 26 to announce the route guidance for informing the driver of the entry to a toll road, express highway or motorway.