Communications: electrical – Condition responsive indicating system – Specific condition
Patent
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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Burgess Larry
Lian Ming-Ren
Sensormatic Electronics Corporation
Swann Glen
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