EAS marker with flux concentrators having magnetic anisotropy or

Details EAS marker with flux concentrators having magnetic anisotropy or EAS marker with flux concentrators having magnetic anisotropy or

1998-01-29

2000-02-08

Tong, Nina

Communications: electrical

Condition responsive indicating system

Specific condition

3405722, 3405726, 3405681, 340551, 428611, 428900, 428928, 148108, G08B 1314

Patent

active

060232269

ABSTRACT:
A harmonic-type electronic article surveillance marker includes a thin, elongated active element and flux concentrators provided at the ends of the active element. The flux concentrators have magnetic anisotropies that are oriented perpendicular to the length of the active element. The orientation of the magnetic anisotropies and the anisotropy field of the flux concentrators stabilize the switching threshold of the marker. The switching threshold level can be controlled by varying parameters such as the angle of the magnetic anisotropies relative to the length of the active element, the strength of the anisotropy field of the magnetic anisotropies, and the geometry of the active element and the flux concentrators.

REFERENCES:
patent: 3790945 (1974-02-01), Fearon
patent: 4075618 (1978-02-01), Montean
patent: 4710754 (1987-12-01), Montean
patent: 4797658 (1989-01-01), Humphrey
patent: 4980670 (1990-12-01), Humphrey et al.
patent: 5204526 (1993-04-01), Yamashita et al.
patent: 5519379 (1996-05-01), Ho et al.
patent: 5565849 (1996-10-01), Ho et al.
patent: 5605768 (1997-02-01), Furukawa et al.
patent: 5650236 (1997-07-01), Hirano et al.
patent: 5777553 (1998-07-01), Perreau et al.
patent: 5801630 (1998-09-01), Ho et al.
patent: 5835016 (1998-11-01), Ho et al.

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