Route guide system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 21, 2001
Grant Date -
N/A
app pub date -
Feb 28, 2001
filing date -
Apr 28, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In order to enable a location function for telling the present position on a screen as a function usually used when traveling in a known area to be always used by its lone, a navigation apparatus 100 mounted on a car stores display map data in it, and displays a map of an area around a present position and the present position together on a display portion 106. It is attained to reduce the amount of stored data and the burden of processing on the navigation apparatus 100 by receiving a traveling route to a destination from a center apparatus 150 in case that a traveling route guidance to the destination is needed. Data of the whole traveling route to a destination are not transmitted at one time but data of only a traveling route from the present position to a specific distance ahead are transmitted at one time and thereby it is possible to reduce the amount of data of communication and start the car earlier. And by newly finding a traveling route to the destination before each transmission of a divided route, it is possible to transmit the optimum traveling route in consideration of the latest traffic information.
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Cited Art Landscape
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