Varying field electronic tag detection system

Details Varying field electronic tag detection system Varying field electronic tag detection system

2005-06-14

2005-06-14

Hofsass, Jeffrey (Department: 2636)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S551000, C340S010200, C340S010340

Reexamination Certificate

active

06906628

ABSTRACT:
The invention concerns a system for detecting multiple tags in a detection zone. The system includes an electronic tag detection system having first and second field generators, each having a respective antenna for generating an electromagnetic field in a detection zone defined between the antennas. Additionally, at least one of the field generators can be responsive to a presence of at least two electronically detectable tags in the detection zone, for varying an intensity of at least one of the electromagnetic fields.

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