Diode receiver for radio frequency transponder

Details Diode receiver for radio frequency transponder Diode receiver for radio frequency transponder

2007-05-08

2007-05-08

Tweel, Jr., John (Department: 2636)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572500, C340S010340

Reexamination Certificate

active

10770341

ABSTRACT:
A passive radio frequency transponder (RF tag) having a diode rectifier receiver circuit outside the tag power rectification circuit, the tag power rectification circuit supplying power to the electronics of the RF tag. An additional innovative low current circuit protect the signal capacitor from overvoltage produced by the signal diode. An innovative circuit also clips the signal and sharpens it. An innovative low current circuit is used as a comparator to sharpen the signal pulses.

REFERENCES:
patent: 4196418 (1980-04-01), Kip et al.
patent: 5266926 (1993-11-01), Beigel
patent: 5731691 (1998-03-01), Noto
patent: 6140924 (2000-10-01), Chia et al.

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