Radioterminals and associated operating methods that transmit position information responsive to rate of change of position
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United States of America Patent
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Aug 16, 2011
Grant Date -
Jun 10, 2010
app pub date -
Feb 22, 2010
filing date -
Apr 4, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A radioterminal includes a wireless communications transceiver, a GPS receiver and a controller. The controller is configured to authorize at least one other radioterminal to receive geographic position information of the radioterminal, to activate the GPS receiver to obtain a measure of a geographic position of the radioterminal and to activate the wireless communications transceiver to transmit the measure of the geographic position of the radioterminal to the at least one other radioterminal that was authorized, responsive to a rate of change of position of the radioterminal. Related methods also are described.
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