Joint Position Detection by Sensor Devices
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United States of America Patent
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Issued Date -
May 12, 2016
app pub date -
Nov 10, 2015
filing date -
Nov 11, 2014
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Abstract
A method of joint position detection by a plurality of known location sensor devices is proposed in an indoor wireless local area network. A tag can query the sensors by sending a request. Timestamps of the query signal are recorded by the sensors. A known location designated sensor responds to the request and triggers a process to correct the clock offsets of other sensors. The timestamps are then corrected based on the clock offsets. The corrected timestamps are then sent to a position processor for determining the tag location.
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