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Apparatus and method for preventing wireless interrogation of portable consumer devices

  • US 7,522,905 B2
  • Filed: 06/24/2005
  • Issued: 04/21/2009
  • Est. Priority Date: 06/24/2005
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a decoy circuit capable of detecting wireless interrogation signals transmitted to a contactless portable consumer device, wherein the decoy circuit is configured to prevent one or more interrogation devices from interrogating an authentic circuit in the contactless portable consumer device wherein the decoy circuit is present in a decoy device that is separate from, but is to be used adjacent to the contactless portable consumer device.

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