ES2022326B3 - CHARACTERIZATION OF A DOCUMENT BY WATERMARK. - Google Patents
CHARACTERIZATION OF A DOCUMENT BY WATERMARK.Info
- Publication number
- ES2022326B3 ES2022326B3 ES87301485T ES87301485T ES2022326B3 ES 2022326 B3 ES2022326 B3 ES 2022326B3 ES 87301485 T ES87301485 T ES 87301485T ES 87301485 T ES87301485 T ES 87301485T ES 2022326 B3 ES2022326 B3 ES 2022326B3
- Authority
- ES
- Spain
- Prior art keywords
- document
- watermark
- characterization
- synthetic watermark
- synthetic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000012512 characterization method Methods 0.000 title 1
- 230000000295 complement effect Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
Landscapes
- Credit Cards Or The Like (AREA)
- Printing Methods (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
- Editing Of Facsimile Originals (AREA)
- Ink Jet (AREA)
- Laminated Bodies (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
A document security system is provided by providing each document with a synthetic watermark, for instance using the process, compositions and apparatus disclosed in the aforementioned U.S. patent of Norris, et al and, within the perimeter of at least one of the symbols which is provided by the synthetic watermark, an identical complementary or otherwise corresponding symbol is printed using ink, paint, dye, stain or similarly contrastingly pigmented substance so as to create, in combination with the synthetic watermark a juxtaposition that can be looked-for as evidence that the document is genuine and its serial number unaltered.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US83222586A | 1986-02-24 | 1986-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2022326B3 true ES2022326B3 (en) | 1991-12-01 |
Family
ID=25261038
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES87301485T Expired - Lifetime ES2022326B3 (en) | 1986-02-24 | 1987-02-20 | CHARACTERIZATION OF A DOCUMENT BY WATERMARK. |
Country Status (16)
Country | Link |
---|---|
EP (1) | EP0234885B1 (en) |
JP (1) | JPH0764146B2 (en) |
AT (1) | ATE62628T1 (en) |
AU (1) | AU587107B2 (en) |
CA (1) | CA1279670C (en) |
DE (1) | DE3769330D1 (en) |
DK (1) | DK94187A (en) |
ES (1) | ES2022326B3 (en) |
FI (1) | FI870754A (en) |
GR (1) | GR3001815T3 (en) |
MW (1) | MW1287A1 (en) |
NO (1) | NO870730L (en) |
PT (1) | PT84352B (en) |
ZA (1) | ZA871104B (en) |
ZM (1) | ZM1987A1 (en) |
ZW (1) | ZW3287A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2675428B1 (en) * | 1991-04-18 | 1993-08-27 | Banque De France | FIDUCIARY OR SECURITY DOCUMENT HAVING PRINTED GRAPHISLE AND SECURITY SIGNS. |
GB2264672B (en) * | 1992-03-04 | 1995-06-28 | Tsi Design | Improvements in or relating to a method of producing paper with a simulated watermark |
AU4833293A (en) * | 1992-10-01 | 1994-04-26 | Clare Patents Limited | Watermarking apparatus |
GB2282611B (en) * | 1993-09-27 | 1997-01-29 | Portals Ltd | Improvement in security features for paper |
GB2283026B (en) * | 1993-09-30 | 1997-01-08 | Portals Ltd | Improvement in security features for paper |
US5768426A (en) | 1993-11-18 | 1998-06-16 | Digimarc Corporation | Graphics processing system employing embedded code signals |
US6345104B1 (en) | 1994-03-17 | 2002-02-05 | Digimarc Corporation | Digital watermarks and methods for security documents |
US5748763A (en) * | 1993-11-18 | 1998-05-05 | Digimarc Corporation | Image steganography system featuring perceptually adaptive and globally scalable signal embedding |
US6449377B1 (en) | 1995-05-08 | 2002-09-10 | Digimarc Corporation | Methods and systems for watermark processing of line art images |
US7286684B2 (en) | 1994-03-17 | 2007-10-23 | Digimarc Corporation | Secure document design carrying auxiliary machine readable information |
US7685426B2 (en) | 1996-05-07 | 2010-03-23 | Digimarc Corporation | Managing and indexing content on a network with image bookmarks and digital watermarks |
US6421070B1 (en) | 1996-11-12 | 2002-07-16 | Digimarc Corporation | Smart images and image bookmarking for an internet browser |
US6334678B1 (en) * | 1999-09-01 | 2002-01-01 | International Paper Company | Method for applying chemical watermarks on substrate |
US6996252B2 (en) * | 2000-04-19 | 2006-02-07 | Digimarc Corporation | Low visibility watermark using time decay fluorescence |
US7213757B2 (en) | 2001-08-31 | 2007-05-08 | Digimarc Corporation | Emerging security features for identification documents |
US20070268511A1 (en) * | 2006-05-19 | 2007-11-22 | Eastman Kodak Company | Secure document printing |
CN102689536B (en) * | 2012-05-30 | 2014-06-11 | 成都印钞有限公司 | Watermarking and printing nested manufacturing technology and production device thereof |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2023814A1 (en) * | 1968-11-21 | 1970-08-21 | Kufferath Antonius | |
AU488652B2 (en) * | 1973-09-26 | 1976-04-01 | Commonwealth Scientific And Industrial Research Organisation | Improvements in or relating to security tokens |
DE2901150C2 (en) * | 1979-01-12 | 1981-02-19 | Gao Gesellschaft Fuer Automation Und Organisation Mbh, 8000 Muenchen | Identification card with authenticity features that can be checked in incident and transmitted light and the process for their production |
DE3018485C2 (en) * | 1980-05-14 | 1982-02-11 | GAO Gesellschaft für Automation und Organisation mbH, 8000 München | ID card with authenticity features that can be checked in incident and transmitted light |
GB8413922D0 (en) * | 1984-05-31 | 1984-07-04 | Continu Forms Holdings Plc | Paper with watermark effect |
-
1987
- 1987-02-16 ZW ZW32/87A patent/ZW3287A1/en unknown
- 1987-02-16 ZA ZA871104A patent/ZA871104B/en unknown
- 1987-02-17 MW MW12/87A patent/MW1287A1/en unknown
- 1987-02-20 DE DE8787301485T patent/DE3769330D1/en not_active Expired - Fee Related
- 1987-02-20 AT AT87301485T patent/ATE62628T1/en not_active IP Right Cessation
- 1987-02-20 ES ES87301485T patent/ES2022326B3/en not_active Expired - Lifetime
- 1987-02-20 EP EP87301485A patent/EP0234885B1/en not_active Expired - Lifetime
- 1987-02-23 AU AU69159/87A patent/AU587107B2/en not_active Ceased
- 1987-02-23 CA CA000530316A patent/CA1279670C/en not_active Expired - Fee Related
- 1987-02-23 ZM ZM19/87A patent/ZM1987A1/en unknown
- 1987-02-23 NO NO870730A patent/NO870730L/en unknown
- 1987-02-23 FI FI870754A patent/FI870754A/en not_active IP Right Cessation
- 1987-02-24 JP JP62041234A patent/JPH0764146B2/en not_active Expired - Lifetime
- 1987-02-24 DK DK094187A patent/DK94187A/en not_active Application Discontinuation
- 1987-02-24 PT PT84352A patent/PT84352B/en not_active IP Right Cessation
-
1991
- 1991-04-19 GR GR91400504T patent/GR3001815T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO870730D0 (en) | 1987-02-23 |
FI870754A0 (en) | 1987-02-23 |
JPH0764146B2 (en) | 1995-07-12 |
DK94187A (en) | 1987-08-25 |
ZM1987A1 (en) | 1988-03-28 |
DE3769330D1 (en) | 1991-05-23 |
EP0234885A3 (en) | 1988-02-10 |
AU587107B2 (en) | 1989-08-03 |
MW1287A1 (en) | 1987-12-09 |
PT84352B (en) | 1989-09-14 |
DK94187D0 (en) | 1987-02-24 |
ZA871104B (en) | 1987-11-25 |
EP0234885A2 (en) | 1987-09-02 |
JPS62231780A (en) | 1987-10-12 |
ZW3287A1 (en) | 1988-09-07 |
AU6915987A (en) | 1987-08-27 |
GR3001815T3 (en) | 1992-11-23 |
CA1279670C (en) | 1991-01-29 |
ATE62628T1 (en) | 1991-05-15 |
NO870730L (en) | 1987-08-25 |
PT84352A (en) | 1987-03-01 |
EP0234885B1 (en) | 1991-04-17 |
FI870754A (en) | 1987-08-25 |
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