Combination eas and rfid label or tag

Details Combination eas and rfid label or tag Combination eas and rfid label or tag

G - Physics

08

B

G08B 13/24 (2006.01)

Patent

CA 2587150

A security tag includes an EAS component having a defined surface area, and an RFID component having a defined surface area. The EAS component surface area is configured to at least partially overlap the RFID component surface area. The RFID component includes an antenna which at least partially overlaps the first surface. A substantially planar spacer having a thickness is at least partially disposed between the defined surface areas of the EAS and RFID components. The thickness of the spacer determines a read range between an RFID reader and the RFID component. The RFID reader is capable of activating the RFID component when the RFID component is within the read range. The antenna has a complex impedance, and the EAS component forms a part of an impedance matching network of the antenna.

[001181] Cette invention concerne une étiquette de sécurité comprenant un élément EAS et un élément RFID avec des surfaces définies. La surface de l~élément EAS est configurée pour chevaucher au moins partiellement la surface de l~élément RFID. L~élément RFID comprend une antenne qui chevauche au moins partiellement la première surface. Un espaceur essentiellement planaire avec une épaisseur est au moins partiellement disposé entre les surfaces définies des éléments EAS et RFID. L~épaisseur de l~espaceur détermine une plage de lecture entre un lecteur RFID et l~élément RFID. Le lecteur RFID permet d~activer l~élément RFID lorsque ce dernier se trouve dans la plage de lecture. L~antenne possède une impédance complexe et l~élément EAS constitue une partie d~un réseau à correspondance d'impédance de l~antenne.

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