Location system
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United States of America Patent
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-
Aug 24, 2010
Grant Date -
Jul 1, 2004
app pub date -
Jul 22, 2003
filing date -
Jul 31, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A location system comprises a communication terminal for transmitting a location request specifying a target mobile terminal and a type of location information, and a location network. In response to the location request, the location network produces current location information of the target mobile terminal if the type of location information of the received request specifies current location information and transmits the current location information to the communication terminal and stores the last known location information in a memory as last known location information of the target mobile terminal. If the type of location information specifies last known location information, stored last known location information of the target mobile terminal is copied from the memory and transmitted to the communication terminal if the location request is verified by a privacy check and if the stored information is reusable.
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