Navigation system using portable phone and navigation method using the same
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United States of America Patent
Stats
-
Feb 22, 2000
Grant Date -
N/A
app pub date -
May 28, 1997
filing date -
May 28, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A name and a location of a building within a control area are correlated with a registered phone number. A map covering the control area and its periphery is stored based on the building. The destination building is searched based on the destination and navigation request. A plurality of voice direction messages are stored for directing the navigation. A plurality of question messages are stored for demanding the user to respond according to a predetermined format so as to specify the present location. When the navigation route extends over a plurality of control areas each controlled by a different base station, such information containing the destination, navigation request, present location and route is shared by those different base stations.
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