Signaling in a wireless positioning system
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United States of America Patent
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Oct 24, 2017
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app pub date -
Mar 30, 2015
filing date -
Sep 10, 2008
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Abstract
Devices, systems, and methods for sending positional information from transmitters/beacons. In one implementation a transmitter generates a range block including a ranging signal and a hybrid block including positioning data, and sends the range block and hybrid block at different times. A user device may receive signals from a plurality of transmitters and generates position/location information using trilateration and measured altitude information in comparison with transmitter altitude information.
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