Detector

Details Detector Detector

2007-05-01

2007-05-01

Goins, Davetta W. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572100, C340S572200, C340S686100, C340S010340, C342S042000, C347S020000, C358S001150, C358S001800, C700S056000

Reexamination Certificate

active

10697269

ABSTRACT:
A detector for detecting the presence of a memory tag, the detector comprising a radio frequency source operable to generate a radio frequency signal and a detector resonant circuit part connected to the radio frequency source, the detector resonant circuit comprising an antenna, the detector further comprising a power monitor responsive to the power of a reflected signal returned from the detector resonant circuit part, the power monitor being operable to generate an output in response to the power of the reflected signal, wherein a decrease in the power of the reflected signal indicates the presence of a tag in the vicinity of the antenna.

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patent: 1 076 316 (2001-02-01), None
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