GB0306578D0 - Method of providing a covert security feature - Google Patents

Method of providing a covert security feature

Info

Publication number
GB0306578D0
GB0306578D0 GBGB0306578.6A GB0306578A GB0306578D0 GB 0306578 D0 GB0306578 D0 GB 0306578D0 GB 0306578 A GB0306578 A GB 0306578A GB 0306578 D0 GB0306578 D0 GB 0306578D0
Authority
GB
United Kingdom
Prior art keywords
providing
security feature
covert security
covert
feature
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.)
Ceased
Application number
GBGB0306578.6A
Other languages
English (en)
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.)
De la Rue International Ltd
Original Assignee
De la Rue International Ltd
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 De la Rue International Ltd filed Critical De la Rue International Ltd
Priority to GBGB0306578.6A priority Critical patent/GB0306578D0/en
Publication of GB0306578D0 publication Critical patent/GB0306578D0/en
Priority to PCT/GB2004/001173 priority patent/WO2004084418A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G07D7/004—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 digital security elements, e.g. information coded on a magnetic thread or strip
    • 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
    • G07D7/2041—Matching statistical distributions, e.g. of particle sizes orientations

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)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
GBGB0306578.6A 2003-03-21 2003-03-21 Method of providing a covert security feature Ceased GB0306578D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB0306578.6A GB0306578D0 (en) 2003-03-21 2003-03-21 Method of providing a covert security feature
PCT/GB2004/001173 WO2004084418A2 (fr) 2003-03-21 2004-03-18 Procede permettant d'appliquer un element de securite cache

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0306578.6A GB0306578D0 (en) 2003-03-21 2003-03-21 Method of providing a covert security feature

Publications (1)

Publication Number Publication Date
GB0306578D0 true GB0306578D0 (en) 2003-04-30

Family

ID=9955288

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB0306578.6A Ceased GB0306578D0 (en) 2003-03-21 2003-03-21 Method of providing a covert security feature

Country Status (2)

Country Link
GB (1) GB0306578D0 (fr)
WO (1) WO2004084418A2 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193853A (en) * 1989-01-18 1993-03-16 Wicker Ralph C Nonreplicable document and method for making same
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
US5710834A (en) * 1995-05-08 1998-01-20 Digimarc Corporation Method and apparatus responsive to a code signal conveyed through a graphic image
US6086706A (en) * 1993-12-20 2000-07-11 Lucent Technologies Inc. Document copying deterrent method
US6104812A (en) * 1998-01-12 2000-08-15 Juratrade, Limited Anti-counterfeiting method and apparatus using digital screening
WO2001086579A2 (fr) * 2000-05-08 2001-11-15 Digimarc Corporation Enveloppes et documents imprimes utilisant des filigranes numeriques, et procedes associes

Also Published As

Publication number Publication date
WO2004084418A3 (fr) 2005-02-10
WO2004084418A2 (fr) 2004-09-30

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)