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US 6,480,147 B2Granted
Portable position determining device
AssigneeJennifer Durst
InventorsJennifer Durst, Eugene F. Fowler, Joseph C. McAlexander
Life of this patent
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Abstract
A position determining device is disclosed comprising a satellite navigation receiver for automatically providing computed position information, when the device has changed its position relative to a predetermined location, to a paging transmitter for transmission to a paging receiver for readout of the computed position information. The readout may be in the form of coordinates and may be accompanied by a message or alarm. The device may be configured as a portable unit of small size and economical manufacture.
Claims25
A position determining device, comprising:
- a satellite navigation receiver for automatically providing computed position information from an output of said satellite navigation receiver for transmission to a host paging receiver when said computed position information indicates said device has changed its position relative to a predetermined location;
- and
- a first two-way pager configured to transmit to said host paging receiver and having a transmitting input connected to said output of said satellite navigation receiver wherein said computed position information accompanied by a message in a predetermined format is transmitted to said host paging receiver responsive to receiving said computed position information accompanied by a message in a predetermined format at said transmitting input for readout of said computed position information at said host paging receiver;
- wherein said position determining device is configured as a portable unit.
1 more element
Dependencies are inferred from the claim text.