Navigation system
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United States of America Patent
Stats
-
Aug 27, 1996
Issued Date -
N/A
app pub date -
Oct 31, 1994
filing date -
Jul 14, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A navigation system mounted on a vehicle computes in advance an optimal route from a starting point to a destination. When the vehicle travels off the optimal route, the navigation system detects an off-route deviation. When an off-route deviation is detected, the system computes a restoration route from the vehicle's present position to a selected point on the optimal route and rapidly displays navigational information to guide the vehicle thereto. Thus there is no need for the system to compute a new optimal route from the present position to the destination, and there is no delay in supplying the driver with navigational information.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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