TRACKING DETERMINATION BASED ON INTENSITY ANGULAR GRADIENT OF A WAVE
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United States of America Patent
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Issued Date -
Oct 15, 2009
app pub date -
Apr 15, 2009
filing date -
Apr 15, 2008
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Abstract
Handheld device, base station, computer readable medium and method for detecting a position of a handheld device. The method includes measuring intensities of at least one beam emitted by a base station; calculating relative intensities based on the measured intensities; and determining the position of the handheld device based on the measured intensities and the calculated relative intensities.
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