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DETECTING RFID TAG AND INHIBITING SKIMMING

  • US 20130106576A1
  • Filed: 10/31/2011
  • Published: 05/02/2013
  • Est. Priority Date: 10/31/2011
  • Status: Active Grant
First Claim
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1. A method of detecting an RFID tag, comprising:

  • transmitting a bait RFID read signal at a bait power level using an RFID reader;

    transmitting a simulated response signal at a simulated-response power level;

    a skimmer-detection step of automatically monitoring a selected reader frequency for a selected detection time using a controller, wherein a skimmer is determined to be present if a skimmer RFID read signal is detected during the selected detection time;

    if a skimmer is not determined to be present, transmitting multiple read signals sequentially; and

    monitoring a selected response frequency for a tag response from an RFID tag, wherein the tag is detected if the tag response is received.

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