Document authentication system utilizing a transparent label

Details Document authentication system utilizing a transparent label Document authentication system utilizing a transparent label

B - Operations, Transporting

42

D

B42D 15/10 (2006.01) G06K 1/12 (2006.01) G06K 7/12 (2006.01) G06K 19/06 (2006.01)

Patent

CA 2123456

This invention relates to a document authentication concept wherein a transparent tape having encoded text thereon is applied to the document. The encoded text printed on the transparent tape is printed with invisible ink so that the message thereon is not visible to the unaided eye. Preferably, the ink is visible in the infrared range. With such a combination, the authentication medium can be applied to a document that has a predetermined format so that the tape can be placed over a portion of the text and the latter will still be readable.

Cette invention concerne un concept d'authentification de document consistant à appliquer sur le document un ruban transparent portant un texte codé. Ce dernier est imprimé sur le ruban transparent à l'encre invisible pour être indiscernable à l'oeil nu. Cette encre est de préférence visible sous un rayonnement infrarouge. Il est ainsi possible d'appliquer ce moyen d'authentification sur un document de format prédéterminé; même si le ruban recouvre une partie du texte, il reste possible de lire celui-ci par transparence.

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