RFID tag and RFID tag communication distance modification...

Details RFID tag and RFID tag communication distance modification... RFID tag and RFID tag communication distance modification...

2005-06-10

2010-11-16

Goins, Davetta W (Department: 2612)

Communications: electrical

Selective

Interrogation response

C340S005800, C340S572700, C340S572300, C455S411000

Reexamination Certificate

active

07834743

ABSTRACT:
It is possible to prevent an unauthorized read-out from both active tags and passive tags. Antenna emission is turned on and off by using a switch, or attenuated by using a resistor. A part of the antenna may be chipped. With these configurations, it is possible to lower the emission level of the antenna thus preventing an unauthorized read-out of important information from a remote reader.

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