AU5109979A - Document security - Google Patents

Document security

Info

Publication number
AU5109979A
AU5109979A AU51099/79A AU5109979A AU5109979A AU 5109979 A AU5109979 A AU 5109979A AU 51099/79 A AU51099/79 A AU 51099/79A AU 5109979 A AU5109979 A AU 5109979A AU 5109979 A AU5109979 A AU 5109979A
Authority
AU
Australia
Prior art keywords
document security
security
document
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.)
Abandoned
Application number
AU51099/79A
Inventor
Alfred V. Alasia
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.)
ALASIA AV
Original Assignee
ALASIA AV
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 ALASIA AV filed Critical ALASIA AV
Publication of AU5109979A publication Critical patent/AU5109979A/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/04—Preventing copies being made of an original
    • G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
    • 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
    • B41M3/146—Security printing using a non human-readable pattern which becomes visible on reproduction, e.g. a void mark
    • 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
    • H04N1/00838—Preventing unauthorised reproduction
    • H04N1/00883—Auto-copy-preventive originals, i.e. originals that are designed not to allow faithful reproduction

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Printing Methods (AREA)
  • Cleaning In Electrography (AREA)
AU51099/79A 1979-01-23 1979-09-21 Document security Abandoned AU5109979A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US572779A 1979-01-23 1979-01-23
US005727 1979-01-23

Publications (1)

Publication Number Publication Date
AU5109979A true AU5109979A (en) 1980-07-31

Family

ID=21717410

Family Applications (1)

Application Number Title Priority Date Filing Date
AU51099/79A Abandoned AU5109979A (en) 1979-01-23 1979-09-21 Document security

Country Status (4)

Country Link
AU (1) AU5109979A (en)
GB (1) GB2040224A (en)
NL (1) NL7907996A (en)
SE (1) SE7909041L (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8818431D0 (en) * 1988-08-03 1988-09-07 Kenrick & Jefferson Ltd Copy protection of multi-colour documents
DD291962A5 (en) * 1989-02-23 1991-07-18 ��@��@���@�����@�K@�Kk�� BOOKSHOP, IN PARTICULAR BANKNOTE, WITH A SAFETY PATTERN AND METHOD FOR THE PRODUCTION THEREOF
US5340159A (en) * 1991-07-12 1994-08-23 The Standard Register Company Varying tone security document
ES2109163B1 (en) * 1995-05-18 1998-07-01 Nacional Moneda Timbre SECURIZATION PROCEDURE OF PRINTED PRODUCTS AND SECURITY ELEMENTS OBTAINED WITH SUCH PROCEDURE.
ES2119705B1 (en) * 1996-10-31 1999-04-16 Nacional De Mondeda Y Timbre F PROCEDURE FOR THE OBTAINING OF AN OPTICALLY VARIABLE ELEMENT (EVO) AND DOCUMENTS THAT INCORPORATE IT.
US5954368A (en) * 1996-11-19 1999-09-21 The Standard Register Company Security document containing a non-orthogonal array
US7180635B2 (en) 2002-05-30 2007-02-20 Xerox Corporation Halftone image gloss control for glossmarks
US7193751B2 (en) * 2002-12-12 2007-03-20 Xerox Corporation Tag control for runtime glossmarks
US8248661B2 (en) * 2007-02-12 2012-08-21 Xerox Corporation Color-consistent three level differential gloss images

Also Published As

Publication number Publication date
SE7909041L (en) 1980-07-24
NL7907996A (en) 1980-07-25
GB2040224A (en) 1980-08-28

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