ES2022326B3 - Caracterizacion de un documento por marca de agua. - Google Patents

Caracterizacion de un documento por marca de agua.

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
Application number
ES87301485T
Other languages
English (en)
Inventor
Malderghem Edmund G Van
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Moore Business Forms Inc
Original Assignee
Moore Business Forms Inc
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 Moore Business Forms Inc filed Critical Moore Business Forms Inc
Application granted granted Critical
Publication of ES2022326B3 publication Critical patent/ES2022326B3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Reverberation, Karaoke And Other Acoustics (AREA)
  • Ink Jet (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Laminated Bodies (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
ES87301485T 1986-02-24 1987-02-20 Caracterizacion de un documento por marca de agua. Expired - Lifetime ES2022326B3 (es)

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 (es) 1991-12-01

Family

ID=25261038

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87301485T Expired - Lifetime ES2022326B3 (es) 1986-02-24 1987-02-20 Caracterizacion de un documento por marca de agua.

Country Status (16)

Country Link
EP (1) EP0234885B1 (es)
JP (1) JPH0764146B2 (es)
AT (1) ATE62628T1 (es)
AU (1) AU587107B2 (es)
CA (1) CA1279670C (es)
DE (1) DE3769330D1 (es)
DK (1) DK94187A (es)
ES (1) ES2022326B3 (es)
FI (1) FI870754A7 (es)
GR (1) GR3001815T3 (es)
MW (1) MW1287A1 (es)
NO (1) NO870730L (es)
PT (1) PT84352B (es)
ZA (1) ZA871104B (es)
ZM (1) ZM1987A1 (es)
ZW (1) ZW3287A1 (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2675428B1 (fr) * 1991-04-18 1993-08-27 Banque De France Document fiduciaire ou de securite presentant un graphisle imprime et des signes de securite.
GB2264672B (en) * 1992-03-04 1995-06-28 Tsi Design Improvements in or relating to a method of producing paper with a simulated watermark
WO1994007694A1 (en) * 1992-10-01 1994-04-14 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
US5748763A (en) * 1993-11-18 1998-05-05 Digimarc Corporation Image steganography system featuring perceptually adaptive and globally scalable signal embedding
US6345104B1 (en) 1994-03-17 2002-02-05 Digimarc Corporation Digital watermarks and methods for security documents
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
US6421070B1 (en) 1996-11-12 2002-07-16 Digimarc Corporation Smart images and image bookmarking for an internet browser
US7685426B2 (en) 1996-05-07 2010-03-23 Digimarc Corporation Managing and indexing content on a network with image bookmarks and digital watermarks
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 (zh) * 2012-05-30 2014-06-11 成都印钞有限公司 一种水印与印刷套合生产工艺及其生产装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2023814A1 (es) * 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 (de) * 1979-01-12 1981-02-19 Gao Gesellschaft Fuer Automation Und Organisation Mbh, 8000 Muenchen Ausweiskarte mit im Auf- und Durchlicht prüf baren Echtheitsmerkmalen und Verfahren zu ihrer Herstellung
DE3018485C2 (de) * 1980-05-14 1982-02-11 GAO Gesellschaft für Automation und Organisation mbH, 8000 München Ausweiskarte mit im Auf- und Durchlicht prüfbaren Echtheitsmerkmalen
GB8413922D0 (en) * 1984-05-31 1984-07-04 Continu Forms Holdings Plc Paper with watermark effect

Also Published As

Publication number Publication date
DK94187A (da) 1987-08-25
ZA871104B (en) 1987-11-25
JPS62231780A (ja) 1987-10-12
EP0234885A3 (en) 1988-02-10
PT84352B (pt) 1989-09-14
DK94187D0 (da) 1987-02-24
ZM1987A1 (en) 1988-03-28
NO870730L (no) 1987-08-25
AU587107B2 (en) 1989-08-03
DE3769330D1 (de) 1991-05-23
FI870754L (fi) 1987-08-25
MW1287A1 (en) 1987-12-09
EP0234885B1 (en) 1991-04-17
FI870754A0 (fi) 1987-02-23
EP0234885A2 (en) 1987-09-02
ATE62628T1 (de) 1991-05-15
PT84352A (en) 1987-03-01
ZW3287A1 (en) 1988-09-07
NO870730D0 (no) 1987-02-23
AU6915987A (en) 1987-08-27
CA1279670C (en) 1991-01-29
GR3001815T3 (en) 1992-11-23
FI870754A7 (fi) 1987-08-25
JPH0764146B2 (ja) 1995-07-12

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