Navigation system for guiding vehicle orally

Details Navigation system for guiding vehicle orally Navigation system for guiding vehicle orally

1993-07-19

1995-09-19

Chin, Gary

Boots, shoes, and leggings

364444, 340990, 340995, G06F 1550

Patent

active

054522170

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.

REFERENCES:
patent: 4757455 (1988-07-01), Tsunoda et al.
patent: 4882696 (1989-11-01), Nimura et al.
patent: 4937751 (1990-06-01), Nimura et al.
patent: 4982359 (1991-01-01), Kamiyama et al.
patent: 5043902 (1991-08-01), Yokoyama et al.
patent: 5266948 (1993-11-01), Matsumoto

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