Positioning devices
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United States of America Patent
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Jun 6, 2017
Grant Date -
Jul 30, 2015
app pub date -
Aug 31, 2012
filing date -
Aug 31, 2012
priority date (Note) -
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Abstract
An apparatus configured at least to perform: receiving a signal constituting a positioning packet at a positioning device; processing the signal by: demodulating a header of the positioning packet from the signal; extracting an identifier from the header of the positioning packet; part processing samples of the signals; and forming a message from the part-processed samples; in response to receiving the signal, deactivating a receiver circuit of the positioning device for a period of time, the period of time constituting a sum of a time taken by the positioning device to process the signal and a preconfigured or random delay time; and activating the receiver circuit of the positioning device immediately subsequent the period of time.
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