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Patent Searching and Data


Title:
NAVIGATION DEVICE OF AUTOMOBILE
Document Type and Number:
Japanese Patent JPH0798233
Kind Code:
A
Abstract:

PURPOSE: To properly perform a course change guide without any error immediately before a branch point in the path guidance using a navigation system.

CONSTITUTION: Light guidance data up to a destination which is set based on road data included in map data taken from a CD-ROM 3 are stored at NAVI-CU 20 for navigation and at the same time course change is guided based on path guidance data indicating an intersection when the estimated position of own automobile which is calculated based on a signal from a vehicle speed sensor 22 and an azimuth sensor 23 approaches the intersection for performing course change in the guidance path. In this case, a reference position for setting the position for starting the guidance of course change is changed to the side before the intersection for example when turning left.


Inventors:
Tokunaga, Toshimichi
Nakamine, Shinichi
Umeo, Yoshibumi
Takahashi, Yasunobu
Application Number:
JP1993000265639
Publication Date:
April 11, 1995
Filing Date:
September 28, 1993
Export Citation:
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Assignee:
MAZDA MOTOR CORP
International Classes:
G01C21/00; G08G1/0969; (IPC1-7): G01C21/00; G08G1/0969