Deactivation element configuration for microwave-magnetic EAS ma

Details Deactivation element configuration for microwave-magnetic EAS ma Deactivation element configuration for microwave-magnetic EAS ma

1998-12-23

2000-09-19

Swann, Glen

Communications: electrical

Condition responsive indicating system

Specific condition

340551, 3405721, 3405723, G08B 1324

Patent

active

061218790

ABSTRACT:
An EAS marker for use in a microwave-GMI article surveillance system includes a length of wire which exhibits a giant magneto-impedance effect, and deactivation elements installed along the length of the wire. The deactivation elements exhibit semi-hard ferromagnetic properties and have a triangular profile, or alternatively exhibit acute-angle corners or have edges that cross the wire at acute angles. The deactivation elements can be magnetized to disable the marker.

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