Radio frequency data reader

Details Radio frequency data reader Radio frequency data reader

2008-07-29

2011-10-11

Bugg, George (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572100, C340S572200, C340S572300, C340S572500, C340S572600, C235S375000, C235S376000, C235S377000, C235S380000, C235S385000

Reexamination Certificate

active

08035521

ABSTRACT:
An RFID or NFC reader is associated via a data link with a tag module such that when the reader transmits an interrogation signal the tag module responds with a random, or constrained random, information signal. The information signal masks a signal transmitted by an RFID or NFC tag which the reader is interrogating, making fraudulently obtaining details contained in the tag transmission more difficult.

REFERENCES:
patent: 2004/0071291 (2004-04-01), Romain et al.
patent: 2006/0082458 (2006-04-01), Shanks et al.
patent: 2007/0034691 (2007-02-01), Davis et al.
patent: 2009/0291668 (2009-11-01), Huang et al.
patent: 1 898 337 (2008-03-01), None
ISO/IEC FCD 14443-3: “ISO/IEC 14443-3 Identification cards—Contactless integrated circuit(s) cards—Proximity cards—Parts 3: Initialization and anticollision”, ISO/IEC JTC1/SC17 N1531, XX, XX, Jun. 11, 1999.
Klaus Finkenzeller: “RFID Handbook Chapter 10”, 1999, Wiley<Chichester, XP002539562.
Klaus Finkenzeller: “RFID Handbook Chapter 11”, 1999, Wiley, Chichester, XP007909588.

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