Mobile terminal and a server for navigation system
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United States of America Patent
Stats
-
Feb 12, 2002
Issued Date -
N/A
app pub date -
Jan 25, 2001
filing date -
Jun 22, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A navigation system in which a mobile terminal side 101 is not equipped with a CD-ROM for storing map database 105, but implements an on-demand navigation function by sharing the one provided within a server 102. By limiting the communications between the mobile terminal 101 and the server 102 only to the beginning of the route guidance and the moment at which the mobile terminal has deviated from the route, the communication traffic can be reduced, minimizing thereby the communication cost and the total power consumption as a whole, and further even when the mobile terminal 101 has deviated from the guide route, the system can readily provide the user with information by which he can reach his destination through communications with the server, and enabling also an indication of the name of the road to be taken at every crossings.
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