Print structure, printing method and reading method for...

Details Print structure, printing method and reading method for... Print structure, printing method and reading method for...

B - Operations, Transporting

41

M

B41M 3/00 (2006.01) B41F 33/00 (2006.01) G06K 1/12 (2006.01) H04N 1/387 (2006.01)

Patent

CA 2584397

A dot pattern formed on a medium surface and not visually recognized, generally called a stealth dot pattern, is simply and inexpensively realized by slightly improving the existing printing technique. The dot pattern is used in a dot pattern read system in which infrared or ultraviolet light is applied to a medium surface on which the dot pattern is formed, the reflected light is read by optical read means to recognize the dot pattern, the dot pattern is converted into data corresponding to this, and a text, a sound, an image, or the like is outputted. On the medium surface, a dot constituting the dot pattern is formed by printing with an ink of an arbitrary color reactive in the infrared or ultraviolet wavelength region.

L'invention permet de réaliser un motif de points formé sur une surface de support et non reconnu visuellement, généralement appelé motif de points cachés, à coût faible et de manière simple, en améliorant légèrement la technique d'impression existante. On utilise le motif de points dans un système de lecture de motif de points dans lequel on applique une lumière infrarouge ou ultraviolette à une surface de support sur laquelle le motif de points est formé, la lumière réfléchie est lue par un moyen de lecture optique pour reconnaître le motif de points, le motif de points est converti en données correspondant à celui-ci, puis un texte, un son, une image, ou autre est généré. A la surface du support, un point constituant le motif de points est formé par impression avec une encre de couleur arbitraire réactive dans la région de longueur d'onde infrarouge ou ultraviolette.

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