Method for embedding non-intrusive encoded data in printed...

G - Physics – 07 – D

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G07D 7/00 (2006.01)

Patent

CA 2340882

A method for encoding, on an imprintable medium, identification information for identifying the imprintable medium in a manner detectable by a print- monitoring system includes the steps of defining an identification pattern. The identification pattern is imprinted on a print control region so as to be relatively inconspicuous to an unaided human reviewer of the printed matter while remaining detectable to a print monitoring system. The method includes the step of imprinting, at a plurality of locations in the print control region, a plurality of bit characters detectable by the print control system. The spatial distribution of the bit characters encodes information about the identity of the document.

La présente invention concerne un procédé de codage, sur un support imprimable, d'informations d'identification permettant d'identifier le support imprimable d'une façon détectable par un système de surveillance d'impression; ce procédé consistant à définir un modèle d'identification. Ce modèle d'identification est imprimé sur une surface de contrôle d'impression de manière à être relativement non apparent pour l'oeil nu de l'examinateur de l'imprimé, tout en restant détectable pour un système de surveillance d'impression. En outre, ce procédé consiste à imprimer, à plusieurs endroits dans la surface de contrôle d'impression, plusieurs caractères binaires détectables par le système de contrôle d'impression. La distribution spatiale des caractères binaires codent les informations relatives à l'identité du document.

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