RADIOTERMINALS AND ASSOCIATED OPERATING METHODS THAT TRANSMIT POSITION INFORMATION RESPONSIVE TO RATE OF CHANGE OF POSITION
First Claim
1. A method of using a first radioterminal, the method comprising:
- authorizing at least one second radioterminal to receive geographic position information of the first radioterminal; and
transmitting a measure of a geographic position of the first radioterminal to the at least one second radioterminal that was authorized, responsive to a rate of change of position of the first radioterminal.
15 Assignments
0 Petitions
Accused Products
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.
117 Citations
26 Claims
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1. A method of using a first radioterminal, the method comprising:
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authorizing at least one second radioterminal to receive geographic position information of the first radioterminal; and transmitting a measure of a geographic position of the first radioterminal to the at least one second radioterminal that was authorized, responsive to a rate of change of position of the first radioterminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A radioterminal comprising:
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a wireless communications transceiver; a Global Positioning System (GPS) receiver; and a controller that 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. - View Dependent Claims (13, 14, 15, 16)
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17. A system comprising:
a controller that is configured to authorize at least one receiver to receive geographic position information of a radioterminal and to cause a measure of a geographic position of the radioterminal to be transmitted to the at least one receiver that was authorized, responsive to a rate of change of position of the radioterminal. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
Specification