Wireless device detection using multiple antennas separated by an RF shield

  • US 9,172,477 B2
  • Filed: 02/14/2014
  • Issued: 10/27/2015
  • Est. Priority Date: 10/30/2013
  • Status: Active Grant
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First Claim
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1. An apparatus used for determining whether a mobile device is transmitting from within a human operated machine, the apparatus comprising:

  • a first antenna positioned within an at least partially enclosed operator area of a human operated machine;

    a second antenna positioned external to the operator area of the human operated machine;

    a radio frequency shield positioned between the first antenna and the second antenna; and

    a processing module that is in electrical communication with the first antenna and the second antenna, wherein the processing module is configured to;

    receive a first signal received from the first antenna and a second signal received from the second antenna, anddetermine, based upon an analysis of the first signal and the second signal, whether a radio frequency generating device is active within the at least partially enclosed operator area.

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