Value card pin security method and device

G - Physics – 06 – K

Patent

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Details

G06K 19/00 (2006.01)

Patent

CA 2689347

A value card comprising a substantially planar substrate with first indicia applied to a surface of the substrate is provided. An obscuring layer formed from an opaque material is disposed over the first indicia so as to prevent at least a portion of the first indicia from being viewed. The obscuring layer is configured so that the opaque material can be removed to reveal the at least a portion of the first indicia but cannot be reapplied over the first indicia. The value card further comprises a security device comprising second indicia comprising a predetermined pattern. At least a portion of the second indicia is formed on the obscuring layer so that removal of the opaque material to reveal the at least a portion of the first indicia also removes the at least a portion of the second indicia.

L'invention concerne une carte de fidélité comprenant un substrat sensiblement plat avec une première marque appliquée à une surface du substrat. Une couche obscurcissante réalisée en un matériau opaque est disposée sur la première marque de manière à empêcher qu'au moins une partie de la première marque ne soit vue. La couche obscurcissante est configurée de sorte que le matériau opaque puisse être retiré pour révéler ladite ou lesdites parties de la première marque mais ne puisse pas être réappliqué sur la première marque. La carte de fidélité comprend en outre un dispositif de sécurité comprenant une seconde marque comprenant un motif prédéterminé. Au moins une partie de la seconde marque est formée sur la couche obscurcissante de sorte que le retrait du matériau opaque pour révéler ladite ou lesdites parties de la première marque retire également ladite ou lesdites parties de la seconde marque.

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