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1. (WO2001031590) APPARATUS AND METHODS FOR AUTHENTICATION USING PARTIALLY FLUORESCENT GRAPHIC IMAGES AND OCR CHARACTERS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/031590 International Application No.: PCT/US2000/029763
Publication Date: 03.05.2001 International Filing Date: 27.10.2000
Chapter 2 Demand Filed: 07.05.2001
IPC:
B41M 1/28 (2006.01) ,B41M 1/30 (2006.01) ,B41M 1/34 (2006.01) ,B41M 3/14 (2006.01) ,G07D 7/00 (2006.01) ,G07D 7/12 (2006.01) ,G07D 7/20 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
M
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
1
Inking and printing with a printer's forme
26
Printing on other surfaces than ordinary paper
28
on metals
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
M
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
1
Inking and printing with a printer's forme
26
Printing on other surfaces than ordinary paper
30
on organic plastics, horn, or like materials
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
M
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
1
Inking and printing with a printer's forme
26
Printing on other surfaces than ordinary paper
34
on glass or ceramic surfaces
B PERFORMING OPERATIONS; TRANSPORTING
41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
M
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
3
Printing processes to produce particular kinds of printed work, e.g. patterns
14
Security printing
G PHYSICS
07
CHECKING-DEVICES
D
HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
7
Testing specially adapted to determine the identity or genuineness of paper currency or similar valuable papers, e.g. for segregating those which are unacceptable or alien to a currency
G PHYSICS
07
CHECKING-DEVICES
D
HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
7
Testing specially adapted to determine the identity or genuineness of paper currency or similar valuable papers, e.g. for segregating those which are unacceptable or alien to a currency
06
using wave or particle radiation
12
Visible light, infra-red or ultra-violet radiation
G PHYSICS
07
CHECKING-DEVICES
D
HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
7
Testing specially adapted to determine the identity or genuineness of paper currency or similar valuable papers, e.g. for segregating those which are unacceptable or alien to a currency
20
Testing patterns thereon
Applicants:
LIANG, Louis, H. [US/US]; US
ANGSTROM TECHNOLOGIES, INC. [US/US]; Suite 110 1895 Airport Exchange Boulevard Erkanger, KY 41018, US
Inventors:
LIANG, Louis, H.; US
Agent:
TOUW, Theodore, R.; 131 NW 4th Street PMB 301 Corvallis, OR 97330, US
Priority Data:
09/428,34827.10.1999US
Title (EN) APPARATUS AND METHODS FOR AUTHENTICATION USING PARTIALLY FLUORESCENT GRAPHIC IMAGES AND OCR CHARACTERS
(FR) APPAREIL ET PROCEDES D'AUTHENTIFICATION UTILISANT DES IMAGES GRAPHIQUES PARTIELLEMENT FLUORESCENTES ET DES CARACTERES ROC
Abstract:
(EN) An authentication system combines a source of non-visible light with apparatus for capturing and recognizing either graphic images or characters or both, where the graphic images and/or characters have been previously made with fluorescent substances that may be invisible under ordinary visible light, but are rendered detectable by non-visible light. The system includes a detector for detecting graphic images or characters, conversion of the detector signal to digital form, a memory storing predetermined indicia, and recognition logic. The recognition logic can include comparison of fluorescent and visible images or of two different fluorescent images with each other. The system operates in conjunction with a method for marking articles with fluorescent partial graphic images or characters, in registration (or offset from registration) with visible partial graphic images or characters from a predetermined set of graphic images and characters recognizable by image comparison or optical character recognition (OCR) respectively. Partial images or characters combine to form complete recognizable images or characters respectively only when illuminated by non-visible light.
(FR) Un système d'authentification utilise une combinaison d'une source de lumière non visible et d'un appareil de capture et de reconnaissance soit d'images graphiques soit de caractères ou des deux, dans laquelle les images graphiques ou les caractères ont été produits préalablement avec des substances fluorescentes pouvant être invisibles sous une lumière visible ordinaire mais rendues détectables par une lumière non visible. Le système comprend un détecteur destiné à détecter des images graphiques ou des caractères, une conversion du signal du détecteur en une forme numérique, une mémoire conservant des marques prédéterminées et une logique de reconnaissance. La logique de reconnaissance peut consister en la comparaison d'images fluorescentes ou visibles ou de deux images fluorescentes différentes l'une avec l'autre. Le système fonctionne conjointement avec un procédé de marquage d'articles avec des images graphiques ou des caractères partiellement fluorescents en alignement (ou en décalage) avec des images graphiques ou des caractères parfaitement visibles tirés d'un ensemble prédéterminé d'images graphiques et de caractères pouvant être reconnus par une comparaison d'images ou une reconnaissance optique de caractères (ROC) respectivement. Des images ou des caractères partiels se combinent pour former des images ou des caractères entièrement reconnaissables respectivement, uniquement lorsqu'ils sont illuminés par une lumière non visible.
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Designated States: AU, CA, JP
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)