Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
December 28, 2010
Patent Application Number
12131782
Date Filed
June 2, 2008
Patent Primary Examiner
Patent abstract
A RFID-based identification device comprising a first RFID antenna; and a second RFID antenna, wherein the first and second RFID antennas are in a first arrangement, the resonant frequencies of the antennas are away from an interrogation frequency such that no identification information is transferred, and wherein when the first and second RFID antennas are in a second arrangement, the resonant frequency of the identification device shifts such that identification information is transferred.
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