HK1082833A1 - Authentication of documents and articles by moire patterns - Google Patents

Authentication of documents and articles by moire patterns

Info

Publication number
HK1082833A1
HK1082833A1 HK06102083.8A HK06102083A HK1082833A1 HK 1082833 A1 HK1082833 A1 HK 1082833A1 HK 06102083 A HK06102083 A HK 06102083A HK 1082833 A1 HK1082833 A1 HK 1082833A1
Authority
HK
Hong Kong
Prior art keywords
documents
patterns
base
articles
revealing
Prior art date
Application number
HK06102083.8A
Other languages
English (en)
Inventor
Roger D Hersch
Sylvain Chosson
Original Assignee
Ecole Polytech
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 Ecole Polytech filed Critical Ecole Polytech
Publication of HK1082833A1 publication Critical patent/HK1082833A1/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/342—Moiré effects
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
    • G07D7/0032—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements using holograms
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/20—Testing patterns thereon
    • G07D7/202—Testing patterns thereon using pattern matching
    • G07D7/207—Matching patterns that are created by the interaction of two or more layers, e.g. moiré patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Security & Cryptography (AREA)
  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Details Of Garments (AREA)
HK06102083.8A 2002-10-16 2006-02-17 Authentication of documents and articles by moire patterns HK1082833A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/270,546 US7194105B2 (en) 2002-10-16 2002-10-16 Authentication of documents and articles by moiré patterns
PCT/IB2003/004202 WO2004036507A2 (en) 2002-10-16 2003-09-24 Authentication of documents and articles by moire patterns

Publications (1)

Publication Number Publication Date
HK1082833A1 true HK1082833A1 (en) 2006-06-16

Family

ID=32092447

Family Applications (1)

Application Number Title Priority Date Filing Date
HK06102083.8A HK1082833A1 (en) 2002-10-16 2006-02-17 Authentication of documents and articles by moire patterns

Country Status (18)

Country Link
US (1) US7194105B2 (ru)
EP (1) EP1554700B1 (ru)
JP (1) JP4427796B2 (ru)
KR (1) KR101119653B1 (ru)
CN (1) CN100520804C (ru)
AT (1) ATE350734T1 (ru)
AU (1) AU2003260925B2 (ru)
BR (1) BRPI0315389B1 (ru)
CA (1) CA2534797C (ru)
DE (1) DE60310977T2 (ru)
ES (1) ES2280842T3 (ru)
HK (1) HK1082833A1 (ru)
MX (1) MXPA05003834A (ru)
NZ (1) NZ539378A (ru)
PL (1) PL219620B1 (ru)
RU (1) RU2328036C2 (ru)
WO (1) WO2004036507A2 (ru)
ZA (1) ZA200502978B (ru)

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US20040076310A1 (en) 2004-04-22
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