Meto International Gmbh

Richard Altwasser

Peter Lendering

David Robson

Identification element

The present invention relates to a security element for electronic article surveillance, comprising two at least partially overlapping layers of conductor strips interconnected by a dielectric adhesive coating. This arrangement reduces the risk of reactivation after activation is once effected. To achieve this, the upper layer and the lower layer of conductor strips have at least one turn, and that the strength of the two layers of overlapping conductor strips is so high as to cause the security element to bend, if subjected to mechanical strain, in those areas which are essentially devoid of conductor strips.

Security device for electronic surveillance of articles

The present invention relates to a security element for electronic article surveillance, having one lower and one upper conducting track with at least one winding each, the two conducting tracks being wound in opposing directions and overlapping in at least one area of overlap, and a dielectric layer in the area of overlap between the two conducting tracks. In a critical area in which a border edge of the lower and upper conducting tracks overlap, the dielectric layer is thicker than in the remaining area of overlap. The present invention also relates to a method of manufacturing such a security element.

Security element for electronic article surveillance and method of manufacturing a security element

A resonant circuit for an anti-theft element consists of two spiral printed circuits and one dielectric layer. The spiral printed circuits are wound in opposing directions and arranged on opposite sides of the dielectric layer so that they at least partly overlap. At least one selected area is provided in which a conductive path arises between the two spiral printed circuits whenever a sufficiently high energy is applied by means of an external alternating field.

Resonant circuit for electronic anti-theft element

The present invention is directed to an identification element having an integrated circuit and an antenna coil ( RFID transponder) connected to the integrated circuit, as well as to a method of manufacturing such an identification element. The present invention provides an economically priced identification element and a method of manufacturing such an identification element. The integration circuit is a non-encapsulated chip and the antenna coil comprises at least one layer of a metallic coating.

Radio frequency identification transponder having non-encapsulated IC

The present invention relates to a universal anti-theft device for securing articles against theft, which has at least one electromagnetic resonant oscillating circuit (2) that, in the interrogation field of an article monitoring system, is excited to transmit a characteristic signal which subsequently trips an alarm and at least one further electromagnetic resonant oscillating circuit which contains specific, encoded information about the article. The present invention also relates to a method for producing the universal anti-theft device for securing articles against theft.

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Neuthard, Germany

Richard Altwasser