RFID based identification device

Details RFID based identification device RFID based identification device

2008-06-02

2010-12-28

La, Anh V (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572800, C340S572400, C340S572500

Reexamination Certificate

active

07859415

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.

REFERENCES:
patent: 5776278 (1998-07-01), Tuttle et al.
patent: 7420512 (2008-09-01), Lannon et al.
patent: 2006/0066441 (2006-03-01), Knadle, Jr. et al.
patent: 2006/0202835 (2006-09-01), Thibault
patent: 2007/0057797 (2007-03-01), Waldner et al.
patent: 2007/0090954 (2007-04-01), Mahaffey
International Search Report for PCT/US08/81468, dated Jan. 6, 2009, 8 pages.

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