WO2002098670A3 - Marking articles using a covert digitally watermarked image - Google Patents

Marking articles using a covert digitally watermarked image Download PDF

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Publication number
WO2002098670A3
WO2002098670A3 PCT/US2002/017868 US0217868W WO02098670A3 WO 2002098670 A3 WO2002098670 A3 WO 2002098670A3 US 0217868 W US0217868 W US 0217868W WO 02098670 A3 WO02098670 A3 WO 02098670A3
Authority
WO
WIPO (PCT)
Prior art keywords
watermarked image
digitally watermarked
article
covert
marking
Prior art date
Application number
PCT/US2002/017868
Other languages
French (fr)
Other versions
WO2002098670A2 (en
Inventor
Nabil M Lawandy
Jeffrey L Conroy
Andrei Y Smuk
Original Assignee
Spectra Systems Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spectra Systems Corp filed Critical Spectra Systems Corp
Priority to EP02776583A priority Critical patent/EP1412915A4/en
Priority to AU2002346244A priority patent/AU2002346244A1/en
Publication of WO2002098670A2 publication Critical patent/WO2002098670A2/en
Publication of WO2002098670A3 publication Critical patent/WO2002098670A3/en

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    • B41M3/003—Printing processes to produce particular kinds of printed work, e.g. patterns on optical devices, e.g. lens elements; for the production of optical devices
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    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/244—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only
    • G11B7/246—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing dyes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3269—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs
    • H04N2201/327—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of machine readable codes or marks, e.g. bar codes or glyphs which are undetectable to the naked eye, e.g. embedded codes

Abstract

A marking system that includes forming at least one marking in or on an article (420), wherein the image formed is not visible to the unaided human observer, and further contains at least one digital watermark (435). The digitally watermarked image comprises emissive and photoabsorptive portions. The digitally watermarked image is applied using a substance reactive to a predetermined excitation source, and exposure to ultraviolet light. Other traditional techniques, such as printing with fluorescent inks may be used in combination. The digitally watermarked image is subsequently observable upon exposure to the predetermined excitation source. The digitally watermarked image may be observed and decoded by appropriately configured detection systems (400), wherein the information obtained may be used for purposes including, but not limited to, authentication and security of the article or information contained within the article.
PCT/US2002/017868 2001-06-06 2002-06-06 Marking articles using a covert digitally watermarked image WO2002098670A2 (en)

Priority Applications (2)

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EP02776583A EP1412915A4 (en) 2001-06-06 2002-06-06 Marking articles using a covert digitally watermarked image
AU2002346244A AU2002346244A1 (en) 2001-06-06 2002-06-06 Marking articles using a covert digitally watermarked image

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US29630801P 2001-06-06 2001-06-06
US60/296,308 2001-06-06
US31091401P 2001-08-08 2001-08-08
US60/310,914 2001-08-08
US31116001P 2001-08-09 2001-08-09
US60/311,160 2001-08-09

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WO2002098670A3 true WO2002098670A3 (en) 2003-04-03

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PCT/US2002/017870 WO2002098671A2 (en) 2001-06-06 2002-06-06 Marking and authenticating articles

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EP (2) EP1412915A4 (en)
JP (1) JP2004528672A (en)
AT (1) ATE502383T1 (en)
AU (1) AU2002346244A1 (en)
CA (1) CA2449171C (en)
DE (1) DE60239457D1 (en)
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WO (2) WO2002098670A2 (en)

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US7529385B2 (en) 2009-05-05
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