Marker for mechanically resonant article surveillance system
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United States of America Patent
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Jul 14, 2009
Grant Date -
Apr 12, 2007
app pub date -
Dec 4, 2006
filing date -
Apr 1, 2005
priority date (Note) -
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Abstract
A magnetomechanical resonance element or marker strip with facilitated performance based on an amorphous magnetostrictive alloy ribbon is utilized in an electronic article surveillance marker. A curvature along the element's length direction is introduced during ribbon fabrication with a different radius of curvature, which increases the resonance performance with minimal loss in the magneto-mechanical circuit, and more particularly, in a marker utilizing a plurality of resonating elements or marker strips. A marker is fabricated utilizing the resonance element or elements and is utilized in an electronic article surveillance system.
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