EP1147495B1 - Substrats pour impression - Google Patents

Substrats pour impression Download PDF

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Publication number
EP1147495B1
EP1147495B1 EP00900703A EP00900703A EP1147495B1 EP 1147495 B1 EP1147495 B1 EP 1147495B1 EP 00900703 A EP00900703 A EP 00900703A EP 00900703 A EP00900703 A EP 00900703A EP 1147495 B1 EP1147495 B1 EP 1147495B1
Authority
EP
European Patent Office
Prior art keywords
substrate
features
substrate according
pattern
image data
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.)
Revoked
Application number
EP00900703A
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German (de)
English (en)
Other versions
EP1147495A1 (fr
Inventor
Robert John Furley
Robert George Stone
Paul Van Braeckel
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.)
Governor and Co of Bank of England
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Governor and Co of Bank of England
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Filing date
Publication date
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Application filed by Governor and Co of Bank of England filed Critical Governor and Co of Bank of England
Publication of EP1147495A1 publication Critical patent/EP1147495A1/fr
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Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • 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
    • B41M3/10—Watermarks
    • 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
    • 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
    • G07D7/005—Testing security markings invisible to the naked eye, e.g. verifying thickened lines or unobtrusive markings or alterations
    • 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
    • G07D7/206—Matching template patterns

Definitions

  • This invention concerns substrates, primarily papers and in particular to a method of modifying the substrate to make it suitable for use in printing security documents.
  • Methods are known for modifying substrates so that genuine substrates can be identified and distinguished from counterfeit substrates.
  • these methods include marking the genuine substrate with materials which fluoresce under ultra-violet, or which only emit light at some special region of the visible spectrum, or involve the addition of special material such as magnetic materials or infra-red absorbing pigments, or the inclusion of large scale water marking in pictorial or bar code form on or in the substrate. All these methods require either a gross alteration of the substrate (as in watermarking methods) or the inclusion of special materials usually requiring special detectors to determine if the substrate of any document is genuine.
  • EP No. 0882599 describes a substrate printed with a pattern which can be seen as a single printing but when copied is revealed to the eye as two printings by the copier reproduction system.
  • the features will not normally be reproduced by a copier or printer supplied with image data signals obtained from an unprotected such system, as it can be arranged that if the computer system or copier detects the said features it can therefore refuse to process the image.
  • a substrate on which a security document is to be printed includes a plurality of physical features in the surface thereof which when illuminated and imaged produce image data signals in the output of a photoelectric device characterised in that :
  • the features may be repeated at regular intervals.
  • Each of the physical features may be similar in character to each of the other features in the said surface.
  • Documents of the same type may be printed on substrate bearing similar features having a similar fixed relationship over the surface of the substrate.
  • bank notes of one denomination may be printed on a substrate having surface features of a particular type and one or more particular spacings.
  • the spacing may be selected so as to be constant in one direction only or varied according to a special, known pattern.
  • a similar or different regular spacing may be selected for features in another direction bearing a particular spacial relationship relative to the first said direction, for example perpendicular to the said first direction.
  • the features are arranged in a 2D matrix in the substrate surface.
  • Secondary encoding of a substrate may be achieved by introducing a variation into the matrix such as by omitting features from particular positions in such a regular matrix.
  • every fourth feature along each third line may be omitted.
  • security documents are encoded using both primary and secondary encodings.
  • secondary encoding may be provided if the matrix is formed from features having two distinctive characteristic and, instead of omitting features at specific positions within the matrix, features of one type are located at one set of positions in the matrix, and features of the other type are located at other positions in the matrix.
  • one set of features may be generally circular in shape, whereas interspersed features producing a secondary encoding may have a different readily distinguishable shape such as rectangular or triangular.
  • the encoding of a substrate can be achieved by selecting the spacing between features or selecting features having a specific characteristic such as shape which can be identified in image data signals relating thereto, and/or by the substitution of features having a first characteristic at selected points in a regularly occurring matrix of such features by other features having a second different characteristic, and/or the omission of features at particular points in a matrix, there is an almost infinite number of possible combinations and permutations available to encode security document substrates.
  • each individual type of security document such as banknotes of different denominations, cheques originating from different banks, passports issued by different offices, and the like, if desired can be uniquely identified by a particular primary and/or secondary encoding selected for the substrate on which they are to be printed.
  • Image analysis techniques for identifying the presence of regularly occurring patterns and/or drop-outs within regularly occurring patterns and/or shape(s) or other visibly distinguishable features of detectable features in an image, are readily available and known, and by using high speed processors such as DSPs and the like, image data can be checked and verified or otherwise, virtually instantaneously as documents are scanned.
  • a physical feature is selected for encoding the surface of a substrate to provide a primary encoding, which will not appear in the electrostatic image of a photocopier. This ensures that attempts to reproduce the original by photocopying will merely produce a copy containing the printed content of the document unless the substrate onto which it is copied contains the correct physical encoding in the surface thereof.
  • any variation in the primary encoding which constitutes the secondary encoding is even less capable of being distinguished by the naked eye or picked up by a photosensitive device as used in a photocopier.
  • the physical feature encoding is in the form of a repeat pattern.
  • the identification features are such that the appearance of the security document (for example a bank note) is not affected or disturbed aesthetically, since in the case of banknotes, the introduction of new notes provided on substrate according to the invention is permissable alongside existing banknotes printed on unencoded substrate, since if the general appearance of the documents is unchanged to the naked eye, old but nevertheless authentic notes which do not contain the physical feature encoding on the substrate surface provided by the invention, will appear similar to banknotes printed on encoded substrate.
  • the security document for example a bank note
  • Examples of physical feature encoding of a substrate as aforesaid comprise, embossing with inkless intaglio or embossing the surface by calendaring during manufacture of the substrate.
  • Two or more different encoding techniques may be combined in any substrate.
  • the invention also lies in impressing in the surface of a substrate onto which a security document is to be printed indentations and/or grooves in accordance with a first pattern which contains encoded therein a second pattern, to enable a security document printed on such a substrate to be identified by subjecting image data signals obtained from scanning the document to an appropriate mathematical algorithm to determine whether the second pattern can be found in image data signals relating to the first pattern.
  • a pattern may be encoded to produce multiple iterations of a code on the substrate.
  • the encoded pattern may not extend over the whole of the surface of the substrate forming each document but only over selected areas which align with particular printed areas of the substrate, and according to another aspect of the invention, the printed areas are selected so as to enhance the detection of the substrate surface variation during scanning and conversion of the image into image data signals.
  • Redundancy created by multiple iterations can be used to advantage since the large number of similar iterations enhances the detectability of the code by increasing the effective signal to noise ratio. This in combination with the selection of particular regions of the printed areas of the final document in which to locate the iterations, facilitates the detection by a data processor of the presence of an otherwise substantially invisible pattern in the data signals derived from the scanning.
  • the encoding of the documents must be capable of being read for example by optically scanning the documents and generating image data signals which can be handled by a computer, or by using a specialist imaging and image analysing apparatus performing this function.
  • the invention also lies in a security document substrate adapted to be identifiable as such by having detectable surface features therein features to enable identification as aforesaid.
  • the invention also lies in a security document when printed on a substrate as aforesaid.
  • a primary application of the invention lies in treating the surface of a substrate as aforesaid for use in the production of security documents so as to inhibit or degrade the reproduction of such security documents using a scanning process which converts the image into image data signals for controlling a printing process, in which a second control is introduced if surface encoding is detected by subjecting the image data signals to an appropriate algorithm, which second control serves to downgrade or inhibit the printing process so as to prevent the reproduction of the original document, or of a good quality reproduction thereof.
  • the invention also provides a method of verification, of a security document when printed on a substrate as aforesaid wherein in a first step of verification a scanning process is employed to convert the image of the surface of the substrate of the document into image data signals for controlling a printing process, and when surface encoding is detected, a second step of verification is introduced by subjecting the image data signals to an appropriate algorithm, said second step of verification, if failing, serving to downgrade or inhibit the printing process so as to prevent reproduction of the document, or at least a good quality reproduction thereof.
  • bank note authentication devices can be provided at relatively low cost to be associated with tills in shops, banks and post offices, so that at transaction points bank notes tendered by the public can be verified before they are accepted.
  • the surface treatment of a substrate in accordance with the invention includes any technique which results in lighter and darker regions to be visible in the surface of a treated sheet of substrate when illuminated for scanning.
  • Either or both primary and secondary encodings may be in the form of repeat pattern which are distinguishable under appropriate illumination to provide detectable content in digital signals obtained by scanning.
  • the substrate may be embossed during its manufacture.
  • the substrate is customary in paper or sheet plastics manufacture to make the material smooth enough for printing by passing it through a high pressure nip between two steel rollers, a process known as calendaring.
  • calendaring By forming one or both of these rollers with indentations, a paper or plastics substrate forced therebetween, will be formed with an embossing pattern corresponding to the indentations.
  • the substrate will be encoded as required by the invention, and can be detected by suitable illumination and converted into digital data signals by a scanner for analysis by a data processor.
  • an encoded structure can be formed in the surface such that the actual surface of the substrate is sufficiently smooth to accept printing ink to enable a security document to be printed thereon, but at the same time contains a fine pattern of less smooth regions, which may be less receptive of printing ink.
  • the surface may also be modified by a technique in which selected regions of a substrate describe a repeat pattern by being impregnated with a fluid such as a resin, or lacquer, such that the optical absorbtion or reflectance characteristics or optical density of the substrate is altered sufficiently as between impregnated and non-impregnated areas as to be discernable under incident light as during scanning for digitising.
  • a fluid such as a resin, or lacquer
  • the surface of the substrate can be etched by a laser beam, so as to produce cavities or grooves in the surface to be printed (or awaiting printing). This technique lends itself to the production of very fine patterns in the surface of the substrate and since a laser beam can be modulated very accurately can be used to introduce depth modulation in any such grooves or cavities as well as or instead of edge or thickness of spacing modulation.
  • Watermarks alter the thickness and/or texture of a substrate, which variations and/or can be rendered visible under incident light and can be used to form primary and/or secondary encoding of the invention. They may be formed in two ways.
  • the wet paper is embossed using an embossing roller as it is being formed, thereby impacting a mark in the paper corresponding to the embossing.
  • the embossing in a suitable repeat pattern which extends over the area of the web, so the paper can be encoded with the watermark pattern.
  • a second technique for forming a watermark uses the so-called cylinder-mould method.
  • the watermark is formed by a cylindrical wire mesh on which is impressed "mouldings" in the form of images.
  • fibres build up to a greater or lesser extent on the mesh moundings and where the thickness of the paper is greater, this gives a darker effect when viewed in transmission than do regions which are thinner and therefore which appear lighter when viewed in transmission.
  • either types of watermark is just visible in incident light this can be used to provide the background coding required by the invention.
  • either watermarking technique may be employed to apply a pattern in the surface of a substrate especially a paper substrate. which is virtually imperceptible to the naked eye, but which will appear as a low contrast pattern when subjected to incident light as where a document is arranged for scanning and digitising.
  • the techniques so far described provide a surface encoded substrate which subsequently can be printed to form a security document.
  • some of the encoding techniques, eg embossing, may be applied after some or all of the printing of the document has occurred.
  • embossing may be applied after a title, or other text, or personal data for example in the case of an ID document has been printed onto a plain substrate, and a surface encoding formed as a post-printing step.
  • Encoding by embossing can be achieved whilst printing at least some regions of a document.
  • the surface encoding may be imparted to the document by so-called "blind" intaglio printing, or intaglio printing with colourless ink.
  • an image is printed using a plate containing engraved areas, some of which are filled with ink and some of which are left empty in the case of blind intaglio printing.
  • the engraved plate inked as appropriate, is pressed under high pressure against the substrate so as to cause the ink to transfer to the substrate.
  • the substrate can become embossed with the engraved image, under the pressure applied, with parts of the substrate surface being printed, and others merely embossed.
  • the resulting substrate is shown in Figure 1, except that in practice the identification features, in this case a repetitive barcode pattern, would be invisible to the naked eye.
  • banknote is conventionally printed over the substrate and the result is shown in Figure 2.
  • the banknote design may be printed either before or after the identification features physically formed in this case by embossing ( Figure 3).
  • the encoded document when scanned into a computer is converted to a digital format.
  • This typically means that the image is analysed into red, green and blue channels for each picture element or pixel.
  • the colour of the picture element is assigned a value in each of these channels on a scale from 0 to 255 (8 bits) typically such that a full intensity is assigned to the value 255 and 'no colour' the value 0.
  • bright white will be represented by all three channels having the value 255 and black by a zero intensity having the value 0.
  • pixels relating to the embossed encoding will be affected by the shadowing from the embossing caused by the lighting in the detection device. They will generally be within a band close to the paper background values.
  • the embossing is shallow so that the shadows are weak and mainly within a band of 20 grey scale values relative to that of the paper background.
  • the embossed encoding could be extracted using a contrast enhancement routine such as is commonly known as 'equalisation'.
  • a contrast enhancement routine such as is commonly known as 'equalisation'.
  • This type of routine sets the maximum value of the pixels in each channel to 255 and the minimum value to 0 and then attempts to smoothly redistribute the intervening pixel values between the two. This has the effect of increasing the difference between the pixel values close to the paper background and thus those relating to the code so that they are easier to recognise in an image recognition program or routine.
  • This method has the disadvantage that other design features unrelated to the code are still present and need to be disregarded by the recognition routine.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Printing Methods (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
  • Liquid Crystal (AREA)
  • Glass Compositions (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Claims (24)

  1. Un substrat sur lequel un document de sécurité doit être imprimé ayant une pluralité de caractéristiques d'identification sur la surface décrite, ci-dessus ainsi une fois illuminés et imagés par un scannage, produit des signaux d'image dans la sortie de l'appareil photoélectrique définies comme suit :
    (i) la différence entre les caractéristiques d'identification et le reste de la surface du substrat est que les signaux d'image correspondant aux lesdites caractéristiques sont complètement indistincts des signaux d'image de la surface du substrat et/ou les signaux de bruit de fond dans la sortie de l'appareil photoélectrique, de fait, il est impossible de les distinguer à l'oeil ; et
    (ii) les caractéristiques sont répétées par intervalles sous la forme d'au moins une partie de la surface du substrat, par lesquels, sur validation, le temps ou la position des signaux de chaque caractéristique ait au moins un rapport fixé aux signaux en rapport avec les autres dites caractéristiques, par lesquels un appareil informatique fourni avec des signaux d'image peut être programmé afin d'identifier si les signaux portent une caractéristique, au moins undit rapport fixé est présent dans les données e pour assister à l'identification du document imagé.
  2. Un substrat conforme à la revendication 1, selon laquelle les caractéristiques d'identification sont répétées par intervalles réguliers.
  3. Un substrat conforme à la revendication 1 ou à la revendication 2, selon lesquelles chacune des caractéristiques d'identification est similaire aux particularités de chacune des autres caractéristiques d'identification dans ladite surface.
  4. Un substrat conforme à n'importe quelle revendication 1 à 3, selon lesquelles l'espacement des caractéristiques d'identification est de nature à être constamment dans une seule direction ou varié selon la forme prédéterminée, et des espacements réguliers similaires ou différents sont sélectionnés pour les caractéristiques dans d'autres directions portant un rapport spatial particulier relatif à ladite première direction, par exemple, perpendiculaire à ladite première direction.
  5. Un substrat conforme à n'importe quelle revendication 1 à 4, selon lesquelles les caractéristiques d'identification sont organisées dans une matrice 2D dans la surface du substrat.
  6. Un substrat conforme à la revendication 1, qui a un codage secondaire du substrat comprenant des variations dans la matrice telle que la suppression des caractéristiques à partir des positions particulières à l'intérieur d'une matrice régulière.
  7. Un substrat conforme à la revendication 5, selon laquelle la matrice est conçue à partir de caractéristiques ayant deux types distinctifs de particularités. Les caractéristiques d'un seul type sont localisées dans un seul ensemble de positions à l'intérieur de la matrice, alors que les caractéristiques de l'autre type sont localisées dans d'autres positions à l'intérieur de la matrice.
  8. Un substrat conforme à n'importe quelle revendication 1 à 7, selon lesquelles la caractéristique d'identification, codée sur la surface, fournit un codage primaire qui n'apparaít pas dans l'image électrostatique d'un photocopieur.
  9. Un substrat conforme à la revendication 8, selon laquelle le codage de la caractéristique d'identification est sous forme répétée.
  10. Un substrat conforme à n'importe quelle revendication 8 à 9, selon lesquelles le codage de la caractéristique d'identification comprend un gaufrage avec une gravure qui n'a pas été encrée ou un gaufrage de la surface en établissant une liste lors de la conception du substrat.
  11. Un substrat conforme à n'importe quelle revendication 1 à 10, selon lesquelles deux ou plusieurs techniques différentes de codage sont associées dans le substrat.
  12. Un substrat conforme à la revendication 11, selon laquelle les caractéristiques d'identification sont gaufrées dans la surface du substrat sur lequel un document de sécurité doit être imprimé, comprenant des identifications et/ou des rainures conforme à la première forme qui contient en l'espèce une seconde forme codée, par laquelle permettra un document de sécurité imprimé sur un tel substrat afin d'être identifié en soumettant des signaux d'image obtenue en balayant le document à un algorithme mathématique approprié pour déterminer si la seconde forme peut être trouvée dans les signaux d'image ayant rapport avec la première forme.
  13. Un substrat conforme à n'importe quelle revendication 1 à 12, selon lesquelles la forme est codée afin de produire plusieurs itérations de code sur le substrat.
  14. Un substrat conforme à n'importe quelle revendication 1 à 13, selon lesquelles la forme codée s'étend sur des parties sélectionnées qui s'alignent avec des parties imprimées particulières du substrat.
  15. Un substrat conforme à la revendication 14, selon laquelle les parties imprimées sont de nature à mettre en valeur la détection de la variation de la surface du substrat lors du scannage et conversion de l'image en signaux d'image.
  16. Une surface du substrat est traitée conforme à n'importe quelle revendication 1 à 15, qui lorsque illuminée à cause d'un scannage, elle contient des parties éclairées et foncées qui sont visibles dans la surface d'une feuille traitée du substrat mais ne sont pas visibles à l'oeil.
  17. Un substrat conforme à la revendication 16, selon laquelle les caractéristiques d'identification sont embossées lors de leur conception.
  18. Un substrat conforme à la revendication 16, ayant des matériaux en papier ou en pastiques mélangés avec une résine ou un vernis-laque ou autre matériau afin d'obtenir une surface lisse lors de l'impression et une structure de codage sur la surface pour que la véritable surface du substrat soit suffisamment lisse pour que l'encre d'impression y adhère et permette au document de sécurité d'y être imprimé, en même temps il contiendra une fine partie de régions moins lisses, moins réceptives à l'encre d'impression.
  19. Un substrat conforme à la revendication 16 selon laquelle des parties sélectionnées décrivent une forme répétée d'identification en étant imprégnée d'un liquide telle que de la résine ou du vernis-laque, l'absorption optique es caractéristiques de réflexion ou la densité optique du substrat est suffisamment modifiée aussi bien entre les parties imprégnées et les parties non-imprégnées qu'avec une faible lumière.
  20. Un substrat conforme à la revendication 16, dans laquelle la surface du substrat est gravée à l'eau-forte par des rayons de laser afin de produire des cavités ou des rainures sur la surface à imprimer (ou attendant d'être imprimée).
  21. Un substrat conforme à la revendication 16, ayant un moirage est utilisé afin de varier l'épaisseur et/ou la texture du substrat, dont les variations peuvent être rendues visibles à une faible lumière et forment le codage primaire et / ou secondaire.
  22. Un substrat conforme à n'importe quelle revendication 1 à 21, caractérisé dan ledit substrat est un substrat de document de sécurité.
  23. Un document de sécurité lorsqu'il est imprimé sur un substrat comme revendiqué dans n'importe quelle revendication 1 à 22.
  24. Une méthode de vérification concernant le document de sécurité conforme à la revendication 22 ou la revendication 23, selon lesquelles dans la première étape de vérification un processus de scannage est utilisé afin de convertir de la surface du substrat du document en signaux d'image relatif au processus d'impression, et la surface codée est détectée, une seconde étape de vérification est introduite en soumettant les signaux d'image à un algorithme approprié, ladite seconde étape de vérification, lors d'un échec, servant à libérer partiellement ou interdire le processus d'impression afin d'éviter la reproduction du document, ou au moins une reproduction de grande qualité de celui-ci.
EP00900703A 1999-01-26 2000-01-20 Substrats pour impression Revoked EP1147495B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9901522 1999-01-26
GBGB9901522.4A GB9901522D0 (en) 1999-01-26 1999-01-26 Substrates for printing
PCT/GB2000/000129 WO2000045344A1 (fr) 1999-01-26 2000-01-20 Substrats pour impression

Publications (2)

Publication Number Publication Date
EP1147495A1 EP1147495A1 (fr) 2001-10-24
EP1147495B1 true EP1147495B1 (fr) 2003-01-02

Family

ID=10846407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00900703A Revoked EP1147495B1 (fr) 1999-01-26 2000-01-20 Substrats pour impression

Country Status (10)

Country Link
EP (1) EP1147495B1 (fr)
JP (1) JP2002536202A (fr)
AT (1) ATE230510T1 (fr)
AU (1) AU3063100A (fr)
CA (1) CA2357727A1 (fr)
DE (1) DE60001098D1 (fr)
GB (2) GB9901522D0 (fr)
HK (1) HK1043417A1 (fr)
MX (1) MXPA01007401A (fr)
WO (1) WO2000045344A1 (fr)

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* Cited by examiner, † Cited by third party
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US7321667B2 (en) 2002-01-18 2008-01-22 Digimarc Corporation Data hiding through arrangement of objects
US7728048B2 (en) 2002-12-20 2010-06-01 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
US7773770B2 (en) 1999-12-28 2010-08-10 Digimarc Corporation Substituting or replacing components in media objects based on steganographic encoding
US7789311B2 (en) 2003-04-16 2010-09-07 L-1 Secure Credentialing, Inc. Three dimensional data storage
US8059860B2 (en) 1998-04-16 2011-11-15 Brundage Trent J Steganographic encoding
US8087583B2 (en) 2002-02-12 2012-01-03 Digimarc Corporation Associating media through encoding
US8300274B2 (en) 1999-11-10 2012-10-30 Digimarc Corporation Process for marking substrates with information using a texture pattern and related substrates
US8505108B2 (en) 1993-11-18 2013-08-06 Digimarc Corporation Authentication using a digital watermark

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US6449377B1 (en) 1995-05-08 2002-09-10 Digimarc Corporation Methods and systems for watermark processing of line art images
US7113615B2 (en) 1993-11-18 2006-09-26 Digimarc Corporation Watermark embedder and reader
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
US6985600B2 (en) 1994-03-17 2006-01-10 Digimarc Corporation Printing media and methods employing digital watermarking
US6961442B2 (en) 2001-03-09 2005-11-01 Digimarc Corporation Watermarking a carrier on which an image will be placed or projected
US7778437B2 (en) 1994-03-17 2010-08-17 Digimarc Corporation Media and methods employing steganographic marking
US6560349B1 (en) 1994-10-21 2003-05-06 Digimarc Corporation Audio monitoring using steganographic information
US7555139B2 (en) 1995-05-08 2009-06-30 Digimarc Corporation Secure documents with hidden signals, and related methods and systems
US6728390B2 (en) 1995-05-08 2004-04-27 Digimarc Corporation Methods and systems using multiple watermarks
US9630443B2 (en) 1995-07-27 2017-04-25 Digimarc Corporation Printer driver separately applying watermark and information
US6786420B1 (en) 1997-07-15 2004-09-07 Silverbrook Research Pty. Ltd. Data distribution mechanism in the form of ink dots on cards
US6618117B2 (en) 1997-07-12 2003-09-09 Silverbrook Research Pty Ltd Image sensing apparatus including a microcontroller
US6879341B1 (en) 1997-07-15 2005-04-12 Silverbrook Research Pty Ltd Digital camera system containing a VLIW vector processor
US6624848B1 (en) 1997-07-15 2003-09-23 Silverbrook Research Pty Ltd Cascading image modification using multiple digital cameras incorporating image processing
US6690419B1 (en) 1997-07-15 2004-02-10 Silverbrook Research Pty Ltd Utilising eye detection methods for image processing in a digital image camera
US7110024B1 (en) 1997-07-15 2006-09-19 Silverbrook Research Pty Ltd Digital camera system having motion deblurring means
US20040119829A1 (en) 1997-07-15 2004-06-24 Silverbrook Research Pty Ltd Printhead assembly for a print on demand digital camera system
US6850626B2 (en) 1998-01-20 2005-02-01 Digimarc Corporation Methods employing multiple watermarks
AUPP702098A0 (en) 1998-11-09 1998-12-03 Silverbrook Research Pty Ltd Image creation method and apparatus (ART73)
US6963884B1 (en) 1999-03-10 2005-11-08 Digimarc Corporation Recoverable digital content degradation: method and apparatus
AUPQ056099A0 (en) 1999-05-25 1999-06-17 Silverbrook Research Pty Ltd A method and apparatus (pprint01)
JP2003527779A (ja) 1999-09-01 2003-09-16 ディジマーク コーポレイション 領域毎に強度を特定してデジタル画像に透かしを形成する方法
US20010037455A1 (en) * 2000-03-09 2001-11-01 Lawandy Nabil M. Authentication using a digital watermark
US6952485B1 (en) 2000-09-11 2005-10-04 Digimarc Corporation Watermark encoding and decoding in imaging devices and imaging device interfaces
US7246239B2 (en) 2001-01-24 2007-07-17 Digimarc Corporation Digital watermarks for checking authenticity of printed objects
US6859225B1 (en) 2000-10-20 2005-02-22 Silverbrook Research Pty Ltd Method and apparatus for fault tolerant data storage on photographs
NL1017173C2 (nl) * 2001-01-23 2002-08-14 Joh Enschedu B V Beveiligingsafbeelding voorzien van dubbelbandige codering.
CA2449171C (fr) 2001-06-06 2009-08-11 Spectra Systems Corporation Marquage et authentification d'articles
US8094869B2 (en) 2001-07-02 2012-01-10 Digimarc Corporation Fragile and emerging digital watermarks
NL1018485C2 (nl) 2001-07-06 2003-01-08 Nl Bank Nv Serie waardedocumenten voorzien van een watermerk in de vorm van een streepjescode.
PT1456810E (pt) 2001-12-18 2011-07-25 L 1 Secure Credentialing Inc Características de segurança com imagens múltiplas para documentos de identificação e processo para as efectuar
WO2003088144A2 (fr) 2002-04-09 2003-10-23 Digimarc Id Systems, Llc Techniques de traitement d'images pour imprimer des cartes et des documents d'identification
US7824029B2 (en) 2002-05-10 2010-11-02 L-1 Secure Credentialing, Inc. Identification card printer-assembler for over the counter card issuing
US7974495B2 (en) 2002-06-10 2011-07-05 Digimarc Corporation Identification and protection of video
US8171567B1 (en) 2002-09-04 2012-05-01 Tracer Detection Technology Corp. Authentication method and system
ES2283498T3 (es) * 2002-11-08 2007-11-01 European Central Bank Insercion de una marca de agua en un documento de seguridad.
DE10305288B4 (de) * 2003-02-10 2005-06-30 Leonhard Kurz Gmbh & Co. Kg Sicherheitsdokument mit wenigstens einem Sicherheitselement
EP2081130B1 (fr) 2004-03-12 2013-07-24 Ingenia Holdings Limited Procédés et appareils pour créer des articles imprimés authentifiables et les vérifiant ensuite
EP2131315A3 (fr) 2004-03-12 2011-01-26 Ingenia Technology Limited Verification de l'authenticité par l'illumination de grande envergure
ES2289708T3 (es) * 2004-04-27 2008-02-01 Bundesdruckerei Gmbh Caracteristica de seguridad para soportes de datos, soporte de datos correspondiente y procedimiento para la produccion de una caracteristica de seguridad.
GB2417592B (en) 2004-08-13 2006-07-26 Ingenia Technology Ltd Authenticity verification of articles
GB2417074B (en) * 2004-08-13 2007-11-21 Ingenia Technology Ltd Authenticity verification methods,products and apparatuses
RU2417448C2 (ru) 2005-07-27 2011-04-27 Инджениа Холдингс Лимитед Верификация аутентичности
WO2007072044A1 (fr) 2005-12-23 2007-06-28 Ingenia Holdings (Uk) Limited Authentification optique
GB2466311B (en) 2008-12-19 2010-11-03 Ingenia Holdings Self-calibration of a matching algorithm for determining authenticity
GB2476226B (en) 2009-11-10 2012-03-28 Ingenia Holdings Ltd Optimisation
US20170309105A1 (en) * 2016-04-25 2017-10-26 Leadot Innovation, Inc. Method of Determining Currency and Denomination of an Inserted Bill in a Bill Acceptor Having a Single Slot and Related Device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3922539A (en) * 1974-04-02 1975-11-25 Pitney Bowes Inc Improved circuit for detecting the passage of an article beating a repetitive marking
US4908873A (en) * 1983-05-13 1990-03-13 Philibert Alex C Document reproduction security system
US4715623A (en) * 1984-09-28 1987-12-29 American Bank Note Company Documents having a revealable concealed identifier and the method of making such documents
FR2675607B1 (fr) * 1991-04-18 1993-08-27 Banque De France Procede pour analyser un document fiduciaire ou de securite presentant un graphisme imprime et deux signes de securite superposes, et dispositif pour la mise en óoeuvre du procede.
GB2297159B (en) * 1992-08-03 1997-02-05 Ricoh Kk Copying apparatus including an original-discrimination system for discriminating special documents
CA2129075C (fr) * 1993-10-18 1999-04-20 Joseph J. Daniele Systeme de comptabilisation electronique des droits d'auteur utilisant des glyphes
GB9323352D0 (en) * 1993-11-12 1994-01-05 De La Rue Thomas & Co Ltd Security documents and the like device
US6345104B1 (en) * 1994-03-17 2002-02-05 Digimarc Corporation Digital watermarks and methods for security documents
US5845008A (en) * 1994-01-20 1998-12-01 Omron Corporation Image processing device and method for identifying an input image, and copier scanner and printer including same
US5919730A (en) * 1996-02-08 1999-07-06 Eastman Kodak Company Copy restrictive documents
EP0895691B1 (fr) * 1996-04-23 2002-07-10 Charney, Leon H. Systeme et procede d'identification de document produit par un logiciel pirate
US5772250A (en) * 1997-04-11 1998-06-30 Eastman Kodak Company Copy restrictive color-reversal documents
PL189595B1 (pl) * 1997-06-06 2005-08-31 De La Rue Giori Sa Wzór zabezpieczający dla papierów wartościowych, papier wartościowy, oraz sposób druku wzoru zabezpieczającego na papierach wartościowych

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8505108B2 (en) 1993-11-18 2013-08-06 Digimarc Corporation Authentication using a digital watermark
US8059860B2 (en) 1998-04-16 2011-11-15 Brundage Trent J Steganographic encoding
US8300274B2 (en) 1999-11-10 2012-10-30 Digimarc Corporation Process for marking substrates with information using a texture pattern and related substrates
US7773770B2 (en) 1999-12-28 2010-08-10 Digimarc Corporation Substituting or replacing components in media objects based on steganographic encoding
US7321667B2 (en) 2002-01-18 2008-01-22 Digimarc Corporation Data hiding through arrangement of objects
US7532741B2 (en) 2002-01-18 2009-05-12 Digimarc Corporation Data hiding in media
US7831062B2 (en) 2002-01-18 2010-11-09 Digimarc Corporation Arrangement of objects in images or graphics to convey a machine-readable signal
US8515121B2 (en) 2002-01-18 2013-08-20 Digimarc Corporation Arrangement of objects in images or graphics to convey a machine-readable signal
US8087583B2 (en) 2002-02-12 2012-01-03 Digimarc Corporation Associating media through encoding
US7728048B2 (en) 2002-12-20 2010-06-01 L-1 Secure Credentialing, Inc. Increasing thermal conductivity of host polymer used with laser engraving methods and compositions
US7789311B2 (en) 2003-04-16 2010-09-07 L-1 Secure Credentialing, Inc. Three dimensional data storage

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GB2346110A (en) 2000-08-02
GB2346110B (en) 2001-09-05
WO2000045344A1 (fr) 2000-08-03
AU3063100A (en) 2000-08-18
GB0001165D0 (en) 2000-03-08
DE60001098D1 (de) 2003-02-06
ATE230510T1 (de) 2003-01-15
CA2357727A1 (fr) 2000-08-03
EP1147495A1 (fr) 2001-10-24
GB9901522D0 (en) 1999-03-17
JP2002536202A (ja) 2002-10-29
MXPA01007401A (es) 2002-06-04
HK1043417A1 (zh) 2002-09-13

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