Means to deactivate a contactless device

Details Means to deactivate a contactless device Means to deactivate a contactless device

2006-02-02

2009-06-16

Trieu, Van T. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572100, C340S539300

Reexamination Certificate

active

07548164

ABSTRACT:
A method and apparatus for deactivating an identification device or RFID tag, such as an e-passport or an ID card that has been revoked, has expired, or is invalid. A programmable memory circuit is coupled to a controlling circuit that is coupled to a shorting circuit that may activate or deactivate the operation of the identification device.

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patent: 1 538 556 (2005-06-01), None
patent: WO 97/22085 (1997-06-01), None
patent: WO 99/05658 (1999-02-01), None

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