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ACCURATE GEOGRAPHIC TRACKING OF MOBILE DEVICES

  • US 20160238692A1
  • Filed: 02/11/2016
  • Published: 08/18/2016
  • Est. Priority Date: 02/13/2015
  • Status: Active Grant
First Claim
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1. A system for tracking mobile devices in real time comprising:

  • a multifrequency transmitter, said transmitter transmitting identification and position information of the transmitter, a mobile device comprising;

    a user display that provides images to a user as viewed from a specified viewpoint,at least two mobile display antennae mounted on the display adapted to receive signals from the multifrequency transmitter;

    a receiver circuit having a carrier recovery circuit that functions to synchronize the signals received by each wireless, compare their phases and determine phase differences; and

    a processor running coupled to the receiver circuit, adapted to run executable code to;

    receive the phase differences from the receiver circuit;

    calculate the distance from a multifrequency transmitter to each antenna based on phase differences; and

    calculate the position of each antenna based on the calculated distances, and causing the images provided to the user to have viewpoint based upon the calculated positions of each antenna.

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