Using GPS and ranging to determine relative elevation of an asset
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United States of America Patent
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Jun 22, 2010
Grant Date -
May 3, 2007
app pub date -
Oct 31, 2006
filing date -
Oct 31, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system and method are disclosed for determining a position of a wireless communication device. A method includes determining a respective (x,y) position of two wireless communication devices, determining a distance between the two wireless communication devices, and determining a relative elevational differential between the two wireless communication devices. The relative elevational differential is determined based on the determined (x,y) positions of the two wireless communication devices and the determined distance between the first and second wireless communication devices. The (x,y) positions may be determined using GPS receivers incorporated in the wireless communication devices. Determining the distance between the devices may be accomplished using RF ranging. The relative elevational differential may be derived using the Pythagorean theorem.
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