Abstract: A magnetic information-carrying tag is presented. The tag comprises a pair of spaced magnetic biasing elements magnetizable to create a magnetic field having a gradient within the space between the magnetic biasing elements, and an array of elongated magnetically soft elements accommodated in a spaced-apart substantially parallel relationship in the space between the magnetic biasing elements and defining a pattern indicative of the information carried in the tag.

Abstract: A magnetic marker for use in an article surveillance system, and an electronic article surveillance system utilizing the same are presented. The marker comprises a magnetic element including a predetermined number of microwire pieces made of an amorphous metal-containing material coated with glass and having substantially zero magnetostriction, coercivity substantially less than 10 A/m, and permeability substantially higher than 20000, the predetermined number of the microwire pieces and a core diameter of the microwire piece being selected in accordance with a desired detection probability of the marker to be obtained in a specific detection system.

Abstract: A reading head is presented for use in a security system for reading an intermittent code pattern, when the code pattern is displaced in a reading direction with respect to the reading head. The code pattern is formed of a plurality of spaced-apart magnetic elements made. The reading head comprises a magnetic material producing a high-gradient static magnetic field, and a sensing element of a kind responsive to signals produced by the magnetic elements. The magnetic material is designed such that it defines an extended narrow region where the static magnetic field vector is substantially equal to zero. The sensing element is located substantially within the zero-field region, and is thereby responsive to signals generated by each of the magnetic elements, when the magnetic element is located in the zero-field region.

Abstract: A magnetic marker for use in an article surveillance system, and an electronic article surveillance system utilizing the same are presented. The marker comprises a magnetic element including a predetermined number of microwire pieces made of an amorphous metal-containing material coated with glass and having substantially zero magnetostriction, coercivity substantially less than 10 A/m, and permeability substantially higher than 20000, said predetermined number of the microwire pieces and a core diameter of the microwire piece being selected in accordance with a desired detection probability of the marker to be obtained in a specific detection system.

Abstract: A magnetic marker for use in an article surveillance system, and an electronic article surveillance system utilizing the same are presented. The marker comprises a magnetic element formed by at least one microwire piece made of an amorphous metal-containing material coated with glass. The microwire piece has substantially zero magnetostriction, coercivity substantially less than 10 A/m, and permeability substantially higher than 20000.

Abstract: A filter for wires and cables comprising at least one pair of inner conductive wires made of an electrically conductive metal covered with an outer layer of magnetic absorbing material. This outer layer is formed from glass-coated microwires containing soft ferromagnetic amorphous material, preferably wound about the conductive wires to form a thin ferromagnetic layer. The filter may include two or more pairs of inner conductors with the ferromagnetic outer layers implemented separately or as a single common outer layer. The inner pairs of conductors may be either straight or twisted.