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Sensing Proximity Utilizing A Wireless Radio Subsystem

  • US 20130324056A1
  • Filed: 02/28/2013
  • Published: 12/05/2013
  • Est. Priority Date: 05/31/2011
  • Status: Active Grant
First Claim
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1. A wireless communications device comprising:

  • an RF transceiver;

    a plurality of antennas coupled to the transceiver; and

    processing circuitry coupled to the RF transceiver, the processing circuitry configured to;

    cause the RF transceiver to transmit an RF reference signal;

    determine at least one characteristic of the RF reference signal reflected back from each of the plurality of antennas; and

    process the at least one determined characteristic in order to control at least one function of the device based on the at least one determined characteristic.

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