Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-05-05
2010-10-26
La, Anh V (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S572700, C340S572500
Reexamination Certificate
active
07821402
ABSTRACT:
An RFID tag for use with an MRI machine has an integrated circuit and structure for protecting it from damage when exposed to an intense MRI RF transmitter field. The structure for protecting the integrated circuit may include a controllable low impedance device coupled across the integrated circuit, a controllable high impedance device coupled in series with the integrated circuit, and/or frequency selective RF filter.
REFERENCES:
patent: 7359173 (2008-04-01), Biagi et al.
patent: 7388498 (2008-06-01), Spencer et al.
patent: 2005/0206500 (2005-09-01), Ferren et al.
patent: 2006/0212096 (2006-09-01), Stevenson
Fujita Hiroyuki
Yang Xiaoyu
Zheng Tsinghua
La Anh V
Nixon & Vanderhye P.C.
Quality ElectroDynamics
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