Radio frequency identification system

Details Radio frequency identification system Radio frequency identification system

2006-10-27

2009-11-03

La, Anh V (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572400

Reexamination Certificate

active

07612674

ABSTRACT:
A reader emits a low frequency signal to energize a RFID tag. The RFID tag responds with a high frequency signal. An antenna on the RFID tag functions as a resonant circuit upon receiving the low frequency signal to power up the RFID tag. In one embodiment, the high frequency signal is a millimeter frequency signal.

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patent: WO/0011592 (2000-03-01), None
patent: WO/0167413 (2001-09-01), None

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