Indoor location using a packet synchronized receiver array
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United States of America Patent
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Nov 1, 2016
Grant Date -
Dec 18, 2014
app pub date -
Mar 14, 2014
filing date -
Mar 15, 2013
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Abstract
Location of one or more devices in a monitored environment based at least in part on data communications between a device and a communication array disposed relative to the monitored environment. The communication array may include a plurality of nodes, at least two of which may be in operative communication with a mobile device. The plurality of nodes may be synchronized to a common time base with communications over a packet-switched communication network (e.g., employing IP communications or the like). In turn, communications between nodes of known location and a device may be used to determine ranging values at least in part based on characteristics (e.g., time of flight) of the communication. As such, a location may be determined by, for example, multilateration of a plurality of ranging values.
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