EP0509916B1 - Wertpapier oder Sicherheitsdokument mit gedruckten Kennzeichen und Sicherheitselementen - Google Patents

Wertpapier oder Sicherheitsdokument mit gedruckten Kennzeichen und Sicherheitselementen Download PDF

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Publication number
EP0509916B1
EP0509916B1 EP92401055A EP92401055A EP0509916B1 EP 0509916 B1 EP0509916 B1 EP 0509916B1 EP 92401055 A EP92401055 A EP 92401055A EP 92401055 A EP92401055 A EP 92401055A EP 0509916 B1 EP0509916 B1 EP 0509916B1
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Prior art keywords
document
bands
watermarked
graphics
chopping
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EP92401055A
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English (en)
French (fr)
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EP0509916A1 (de
Inventor
Olivier Puyplat
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Banque de France
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Banque de France
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    • 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
    • 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

Definitions

  • the invention relates to fiduciary or security documents, of the type comprising printed graphics and security signs, said documents possibly in particular being banknotes.
  • a periodic dry stamping has thus been proposed along a strip parallel to an edge of the document, said stamping provided for the manufacture of paper thus making it possible to vary the density along said strip, with crushing of this strip during the printing of the document.
  • a succession of stamping and counter-stamping steps was used for the form fabric, which makes it possible to obtain a succession of dark zones and light zones for the document, according to a particular watermark of the network type. watermarked, said network being periodic or not.
  • the object of the invention is to produce a fiduciary or security document, the security signs of which provide both better assistance with authentication and easy discrimination.
  • the object of the invention is also to design a document, the security signs of which are arranged so as to overcome the shaping and the orientation of said document, and its spatial arrangement with respect to the direction of scrolling.
  • the invention also aims to design a document whose security signs are as discreet as possible by examination with the naked eye, so as not to attract attention.
  • the object of the invention is finally to produce a document capable of being analyzed by analysis means carrying out calculation treatments which are both uncomplicated and very reliable.
  • a fiduciary or security document presenting a printed graphics and security signs, characterized in that it comprises two superimposed security signs each produced in the form of a network, of which a first security sign which is in the form of a periodic watermarked network, and a second security sign which results from a cutting of the printed graphics into parallel strips arranged and coded according to a binary coding, symmetrically with respect to an axis of symmetry of the document, the wave of said watermarked network extending in a common direction essentially not perpendicular to the direction of said cutting strips of printed graphics, the superposition of these two security signs thus having the effect of affecting the individual reading of said signs .
  • the watermarked network forming the first safety sign comprises waves with a sinusoidal surface mass profile. This avoids the presence of brutal contrasts at the edges of the wave (a square or rectangular wave would be more brutal and less discreet).
  • the variations in amplitude of the waves of the watermarked network are made around the mean plane of said document, which makes it possible to dispense with the shaping of the document.
  • the wave of the watermarked network extends substantially in a common direction making an angle of 45 ° relative to the direction of the cutting strips of the printed graphics. This achieves a possibility of reading the document not only independent of the shaping and orientation of said document, but also whatever the spatial position relative to the direction of travel.
  • the watermarked network defines a surface whose closed contour is inside the edges of said document, said surface being entirely crossed by strips for cutting the printed graphics.
  • the watermarked network is organized according to a square, the dimensions of this square being preferably chosen relatively large to preserve a good flatness of the document (the problem is particularly acute if using bundles or stacks comprising a large number of documents ), and to further increase the discretion of this security sign.
  • the edges of the square are beveled: this avoids any phenomenon of insert at the edges, resulting from a high contrast, so that the discretion of this safety sign is further improved.
  • the cutting strips of the printed graphics have the same predetermined width which is a function of the angle ⁇ between the common direction of propagation of the wave of the watermarked network and the direction of the cutting strips, when said angle is greater than a reference angle corresponding to a bandwidth up to half the width of said document; in particular, the width e of the cutting strips is given by the formula: where T is the wavelength of the watermarked network.
  • the cutting bands of the printed graphics have the same width depending only on the coding sought and not on the angle between the common direction of propagation of the wave of the watermarked network and the direction of the cutting bands, when said angle ⁇ is less than a reference angle corresponding to a bandwidth reaching half the width of said document. This will for example be the case with a direction of propagation parallel to the direction of the cutting strips, but the analysis technique will then have to be adapted accordingly.
  • the graphic design of said document is printed with a pair of inks of the same shade, one of which reacts and the other does not respond to a predetermined excitation, so as to define the division of said graphic design into parallel strips.
  • the excitation could be of various types (inks reacting or not to infrared, microwaves, ultra-violet, magnetic pigments, or even to a radioactive source).
  • the graphics are also printed with other inks which do not react to said predetermined excitation, for example which do not absorb infrared, likewise for any graphics also provided on the back of said document.
  • the cutting strips of the graphic can be coded on the front, or on the back, or on the front and on the back of said document.
  • the graphic design of said document is printed with a couple of inks, one of which reflects infrared and the other not.
  • FIG. 1 illustrates a document 1, here of rectangular shape, the large edge of which is noted 2 and the small edge of which is noted 3.
  • This document presents on one side (front or back) a printed graphic G, illustrating here a hang glider.
  • a graphic can naturally also be provided on the other side of document 1.
  • document 1 includes two superimposed security signs 100, 200, shown here in dotted lines.
  • the first security sign 100 is in the form of a periodic watermarked network, delimited by a closed contour C which is inside the edges 2, 3 of document 1. This first security sign is therefore visible by transparency, and then presents a succession of bands 101, 102 which are alternately darker and lighter. The appearance of these bands 101, 102 results from variations in the basis weight in this watermarked zone.
  • the second security sign 200 is also produced in the form of a network, but this second sign results from a cutting of the printed graphics G into parallel strips 201, 202 which are coded.
  • the strips 201, 202 are first of all arranged symmetrically with respect to an axis of symmetry of the document 1, in this case the axis X'X, which is parallel to the large edge 2 of said document. There is therefore an even number of bands, arranged on either side of the axis X'X.
  • the other axis of the document is noted Y'Y in FIG. 1.
  • the direction of the bands 201, 202 is denoted DD, and it will be seen that this direction coincides with the direction of travel of the document when it is a question of analyzing said document.
  • the bands 201, 202 relate to the entire document 1: in FIG. 1, there are thus distinguished two areas not concerned by the ZL coding. In the particular case of a bank note, these two ZL zones can be used for numbering.
  • These bands 201, 202 are also coded according to a binary coding (0 or 1), and symmetrically with respect to the axis of symmetry X'X of document 1.
  • the coding of the bands 201, 202 is thus organized along the axis Y'Y.
  • the graphic design G of the document is printed with a pair of inks of the same shade, one of which reacts and the other not at a predetermined excitation, so as to define the division of said graphic design into parallel strips.
  • infrared radiation Although it is possible to use different types of excitation (magnetic pigments, microwaves, UV radiation, radioactive source), it is interesting to choose infrared radiation.
  • the wavelength of the infrared will then be chosen so as to obtain the best efficiency of the couple constituted by the two safety signs 100, 200, so that the response curves concerned during the analysis of the document coincide at least in part.
  • a wavelength slightly less than a micrometer and in particular between 0.8 and a micrometer (this is therefore the lower infrared region, which is very far from thermal infrared sometimes used for document analysis, where the wavelengths are at least three micrometers).
  • FIG. 9 there is thus successively a band 202 coded 1 (absorbs infrared, so lets see the part concerned of the graphics as well as the zone concerned by the first watermarked network 100), a band 201 coded 0 (reflects infrared , therefore hides the graphics, thus leaving only the area concerned with the first watermarked network 100) visible, then two bands 202 coded 1.
  • the symmetry of the coding with respect to the axis X'X then implies the successive presence of two bands 202 , a band 201, and finally a band 202.
  • the binary coding illustrated in FIG. 9 is therefore 10111101.
  • FIG. 10 illustrates another coding with the same number of parallel bands: the coding is then 01100110 (the symmetry of the coding with respect to the axis X'X is naturally always respected).
  • FIGS. 9 and 10 eight parallel bands are provided, so that there are in fact 24, ie 16 different codings.
  • the coding by cutting of the printed graphics can concern the front, the back, or both. In the latter case, reading the document will be facilitated if the same coding is used on the front and back, the corresponding bands being thus directly superimposed; this possibility may prove to be interesting insofar as it makes it possible to better resist aging.
  • FIG. 2 makes it possible to better distinguish the watermarked zone corresponding to the first security sign 100, as it is presented seen by transparency.
  • the watermarked network 100 is therefore periodic (regular alternation of opaque and clear areas), and the period is noted T.
  • this watermarked network comprises waves which are preferably of profile of sinusoidal surface mass.
  • FIG. 2 also shows that the wave of the watermarked network 100 extends in a common direction DC which is essentially not perpendicular to the direction DD of the cutting strips of the second network 200.
  • the aforementioned directions DC and DD form an angle ⁇ between them which is here 45 °, which allows a reading of the document in two perpendicular directions (parallel to the large edge, which is generally the case for the processing machines, especially for banknotes, or parallel to the small edge).
  • FIG. 14 illustrates a particular case where the directions DC and DD are essentially parallel, this case inducing a particular arrangement of the detection sensors, as will be described later with reference to this figure.
  • phase shift for the waves of the first network 100 relative to the center of the square which is here at the intersection of the axes X'X and Y'Y of the document.
  • the choice of such a phase shift for example bringing as is the case here the edge of a strip at the center 0 of the square, will depend on the analysis mode used and the corresponding processing means. We will see that this allows a sensor located at any distance from the X'X or Y'Y axes to always receive the same signal (to within ⁇ or 2 ⁇ ).
  • the arrangement illustrated in FIG. 1 remains in any case the most interesting, because the arrangement of the two superimposed networks, namely the watermarked periodic network 100 and the coded network 200 in parallel strips for cutting the printed graphics, allows a reading of the globally indifferent document (independent of the form, orientation and direction of passage of the document).
  • FIG. 3 illustrates the raised face of a matrix 110 making it possible to stamp the form cloth during the manufacture of the document, in order to obtain a watermarked periodic network similar to that of FIG. 2.
  • This raised face has undulations, here sinusoids, which propagate in a common direction DC inclined at 45 °.
  • the raised face of the matrix 110 thus presents a succession of hollows 111 and bumps 112 (better visible on the cross section of FIG. 4), which make it possible to produce the alternately light 102 and opaque 101 areas for the watermarked network 100 of the document.
  • the associated curve IV of FIG. 4a showing the variations in the surface mass in the watermarked zone of the document (in the direction DC), is then in direct correspondence with the curve of the variations in the relief of the matrix 110 illustrated in FIG. 4 .
  • the period T will preferably be chosen to be large in relation to the dimensions of the document, for example of the order of 10 mm for a banknote, so that the security sign 100 is as discreet as possible. The same goes for the side of the square, which will for example be of the order of 60 mm.
  • FIGS. 5 to 8 also make it possible to better distinguish the particular beveling of the edges 113 of the matrix 110.
  • This beveling is in fact organized either downwards (chamfered edges 113 ') or upwards (chamfered edges 113' ') relative to the mean plane of the raised face of the matrix 110.
  • FIG. 11 illustrates (in transparency) the watermarked periodic network 100 obtained with a form cloth previously stamped with the aforementioned matrix 110: the bevelled edges 103 of the square will be noted in particular.
  • the opaque 101 and light 102 areas correspond to what has been previously described with reference to FIG. 2.
  • FIG. 12 shows on a larger scale the zone of document 1 where the two security signs 100 and 200 are superimposed.
  • the striped zones 101 and 102 of the watermarked periodic network 100 alternately opaque and clear, have the same width which is equal to the half-period T / 2 of the sine wave of said network.
  • the inclination of these bands 101 and 102 is identified by the angle ⁇ between the directions DC and DD (the angle ⁇ here is 45 °).
  • FIG. 12 also makes it possible to distinguish the parallel coded strips 201, 202 from the second security sign 200 corresponding to the cutting of the printed graphics.
  • the coded bands have the same width e which is determined, in most cases, as a function of the watermark network, that is to say more precisely of the period T and of the angle ⁇ .
  • FIG. 12 shows a right triangle ABC corresponding to a particularly advantageous arrangement for reading the document, a triangle whose hypotenuse AB corresponds to the width e of each of the bands 201 or 202, and one side of which corresponds to the half-period T / 2: so we have the relation
  • the width e of the bands 201, 202 for cutting the printed graphics is essentially chosen according to the coding sought.
  • the bands 101, 102 of the first network 100 are then orthogonal to the bands 201, 202 of the second network 200, and one can then choose a width e advantageously equal to half period T / 2 (the representation would then correspond to a perfect grid of the square in six orthogonal bands).
  • the number of cutting strips will first be chosen as a function of the number of documents to be coded and of the manufacturing techniques making it possible to produce these coded strips, and also of symmetry constraints. This choice will also be guided by the precision of the reading machine used for document analysis. We will then determine the possible angles ⁇ , it being understood that an angle of 45 ° offers the maximum of advantages, as has been explained above.
  • the first security sign 100 and the second security sign 200 are used for authentication of the note, and the second security sign 200 is used for mechanized discrimination of the face value of said note.
  • FIG. 13 indeed illustrates the zone of document 1 where the two security signs 100 and 200 are superimposed (as for FIG. 12), with in addition a reading strip 301 equipped with detection means.
  • the detection means are here in the form of sensors 300, with at least one sensor per coded band 201 or 202 of the second network 200 (here one per band). These means are organized in a general direction D which is perpendicular to the direction DD which is that of the scrolling of the document in the reading machine (the direction DD is also that of the coded strips 201, 202), and with a prohibition d equal to the width e of said coded bands 201 or 202.
  • the detection means 300 is also advantageous for the detection means 300 to be located on the median axis (a) of the associated bands 201 or 202 of the second network 200: this thus avoids any risk of alteration of the analysis in the event of a shift in the document. compared to the sensors of the reading module (there would be a loss of signal by increase in noise).
  • It may be a single reading bar, the sensors of which comprise transmitting and receiving means, and under which the document to be analyzed scrolls. It may alternatively be two superimposed reading bars, one of which comprises transmitting means and the other of receiving means, and between which the document scrolls. analyze. Figure 13 then schematically shows either this single bar, or one of the two superimposed bars (the other being below it).
  • FIG. 13 also makes it possible to understand that, when a sensor 300 associated with a coded strip 201 or 202 reads a minimum surface density (sensor at the center of an inclined strip 102, on the axis of [adite strip], sensor 300 associated with the symmetrical strip 201 or 202 (conjugate strip) reads a maximum basis weight (sensor in the center of an inclined strip 101, on the axis of said strip): this results from the fact that the layout of the network watermark with sinusoidal wave profile is such that there is phase opposition of the waves on either side of the axis X'X of the document, at the same distance from said axis.
  • this method by adding the response of each coded band and that of its conjugate band, it is possible both to eliminate the signal from the first watermarked network, and to improve the response to the coding of the bands, for example the response to the infrared: preferably for this, use a decoding by synchronous integration for each pair of coded bands (a pair consisting of a coded band and its symmetrical or conjugate), then a mutual comparison of the results obtained with the theoretical coding values.
  • the read bar 301 then comprises two parallel rows of sensors 300 ′, 300 ′′, arranged perpendicular to the direction of travel DD, with a row per strip half: these two rows of sensors (each comprising three sensors 300 'or 300' 'here) are then offset between them by a predetermined distance d1 which is preferably substantially equal to the half wavelength T / 2 of the first network, so as to find the opposition of the previous phase between homologous sensors.
  • the sensors 300 'or 300' 'of the same row are moreover located on the median axis (a) of the associated coded bands 201, 202 of the second network, and are equidistant from one another by a distance d substantially equal to the width e of said coded bands.
  • FIG. 16 schematically illustrates a complete device for analyzing the signals from the various sensors, in order on the one hand to verify the coding of the second network and to validate the document analyzed. when the network read is compliant, and on the other hand to analyze the first network and to validate the document analyzed when the network read is also compliant.
  • the reading strip 301 can have substantially circular equidistant openings 302 associated with each sensor 300, as illustrated in FIG. 13.
  • openings in the form of slots 303 can be provided (FIG. 15a): each slot is then inclined so as to be substantially perpendicular to the direction of propagation of the wave of the first network (each slot is thus inclined according to the same angle ⁇ with respect to the direction of travel DD).
  • cruciform openings 304 (FIG. 15b), the two branches of which are respectively parallel and perpendicular to the direction of propagation of the wave of the first grating. This makes it possible to further increase the integration surface for the first network and to have a higher average value for the measured signal, since in this case an integrated sampling process is used.
  • each multiple sensor 300 is constituted by two identical identical sensors 3001 arranged on either side of the median axis (a) of each coded strip 201 or 202. The response of the sensor 300 is then the sum of the responses of the two 3001 sensors.
  • each multiple sensor 300 consists of four identical sensors 3002 arranged in a square, the square being centered on the median axis (a) of each coded strip 201 or 202, and the edges of the square being parallel and perpendicular to the DD scroll direction.
  • FIGS. 15a to 15d can be adapted to the case of the bar with two offset rows illustrated in FIG. 14, then with two offset rows of inclined or cruciform slots, or two offset rows of multiple sensors.
  • the sensors 300 or 300 ′, 300 ′′ of the reading strip 301 will preferably be organized to present the same gain and the same original setting, so as to ensure the balancing of the different channels.
  • the single or multiple sensors may be photo-diodes, or photo-transistors, or even photo-resistant cells, each of these sensors preferably being associated with optical filters in order to be perfectly calibrated at the desired wavelength.
  • the analysis device comprises means 400 for processing the signals coming from the sensors 300.
  • These processing means comprise two units, each of which is associated with a network 100 or 200 of the document.
  • the first unit allows the verification of the coding of the second network of the document scrolling at the level of the sensor strip, and the validation of the document analyzed when this network is compliant.
  • This first unit firstly comprises summing means 401 associated with each pair of coded bands.
  • the signals obtained thus correspond to signals SA + SA ', SB + SB' and SC + SC '(these additions each time include the sum of a signal and of this same signal phase shifted by ⁇ ), with preferably an amplification prior by means of intermediate amplifiers 413.
  • These signals are sent to associated integrating means 402 allowing integration over the entire length of the document analyzed.
  • Signals IA, IB, IC are thus obtained associated with each pair of coded bands. These signals are sent to comparator means 403 to compare the results obtained with the theoretical coding values of the second network of the document to be analyzed.
  • switching means 408, 409 are provided upstream and downstream of the integrating means, these switching means (shown here by switches) being controlled respectively by the passage of the front edge and the rear edge of the document.
  • a fixed member such as a photo-diode (at least one of the sensors of the reading bar can alternatively provide itself an additional function of detection of the passage of the ticket, which avoids having to plan a separate photo-diode): the control of the means 408, 409 is shown here schematically by a central control unit 415.
  • this fixed detection member integrated or separate photo-diode
  • the comparator means 403 first make it possible to verify that each value IA, IB, IC is indeed within a predetermined range, the limits of which are defined as a function of the inks, the opacity of the paper, and other parameters relating to the document concerned. .
  • the comparator means 403 are equipped with a contrast alarm 410 intervening when a difference between the results is outside a predetermined range. In this case, all the differences I i -I j are compared with the limits of the range, and the alarm 410 intervenes if there is no ink reacting to the known excitation (infrared radiation for example), or if the ink does not react properly to this excitation.
  • the known excitation infrared radiation for example
  • the contrast alarm 410 occurs when a relationship between results is outside of a predetermined range.
  • the comparator means 403 then comprise logarithmic report amplifiers and a window comparator (positive or negative). In this case, all values are compared to the limits of the range.
  • This variant is interesting both for the symmetry of the results if the responses are reversed, for the high sensitivity for a given scale in small differences in contrast, and for the fact that there is a maximum response for black and mini for white.
  • the first unit finally comprises decoding means 411 downstream of the comparator means 403, in order to identify the document, and in particular when the document is a banknote, in order to discriminate the face value of the note.
  • decoding means 411 have in memory the inequalities I i ⁇ I j for each document, which makes it possible to easily identify the analyzed document.
  • the second unit firstly comprises differentiating means 404 associated with each pair of coded bands.
  • the signals obtained thus correspond to signals
  • Each difference corresponds, due to the phase opposition for the watermarked network, to twice the starting signal free of disturbances due to the dirtiness of the document and the look of the paper.
  • filtering means 406 allowing filtering of the signals at the fundamental frequency of the first network, which makes it possible to isolate the useful signal.
  • This signal is finally sent to means 407 of recognition and validation, in order to analyze the first network of the document, and to validate the document when the watermarked network is compliant, or failing to involve an associated alarm 414.
  • These means 407 may include a window comparator on the amplitude and / or a threshold detection of the harmonic distortion, or a detection of the number of periods.
  • the amplifier means 413, summers 401 and integrators 402 of the first unit can be grouped together in a single functional unit, and the amplifier means 413 and differentiators 404 of the second unit.
  • the decoding circuit will not validate the document and moreover the reading of the watermarked network on the channel considered will not be not possible because of the infrared sensitive ink.
  • This can also result from a falsification of the watermarked periodic network (first network), but then, if the amplitude is too high, detection is easy; if the phase is not respected, the signal from the channel difference is then very attenuated, and if the profile is not sinusoidal, the measurement of the harmonic distortion allows detection.

Claims (15)

  1. Wertpapier- oder Sicherheitsdokument mit gedruckten Zeichen und Sicherheitsmarken, dadurch gekennzeichnet, daß es zwei überlagerte Sicherheitsmarken (100, 200) aufweist, die jeweils in Form eines Netzes realisiert sind, wobei eine erste Sicherheitsmarke (100) in der Form eines periodischen Wasserzeichennetzes auftritt und eine zweite Sicherheitsmarke (200) sich aus einer Aufteilung der gedruckten Zeichen (G) in parallele Bänder (201, 202) ergibt, welche gemäß einer binären Codierung (0 oder 1), relativ zu einer Symmetrieachse (X'X) des Dokuments (1) symmetrisch angeordnet und codiert sind, wobei sich die Welle des Wasserzeichennetzes in einer gemeinsamen Richtung (DC) erstreckt, welche im wesentlichen nicht senkrecht zu der Richtung (DD) der Bänder zum Aufteilen der gedruckten Zeichen ist, wobei die Überlagerung dieser beiden Sicherheitsmarken (100, 200) die Wirkung hat, daß sie die einzelne Lesbarkeit dieser Marken beeinflußt.
  2. Dokument nach Anspruch 1, dadurch gekennzeichnet, daß das Wasserzeichennetz, welches die erste Sicherheitsmarke (100) bildet, Profilwellen mit einer sinusförmigen flächenbezogenen Masse aufweist.
  3. Dokument nach Anspruch 2, dadurch gekennzeichnet, daß die Veränderungen der Amplitude der Wellen des Wasserzeichen netzes (100) um die Mittelebene des Dokumentes (1) herum ausgebildet sind.
  4. Dokument nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Welle des Wasserzeichennetzes (100) sich im wesentlichen in einer gemeinsamen Richtung (DC) erstreckt, die mit der Richtung (DD) der Bänder (201, 202) zum Aufteilen der gedruckten Zeichen einen Winkel von 45° einschließt.
  5. Dokument nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Wasserzeichennetz (100) eine Oberfläche definiert, dessen geschlossene Umrißlinie (C) innerhalb der Ränder (2, 3) des Dokumentes (1) liegt, wobei die Oberfläche vollständig von den Bändern (201, 202) zum Aufteilen der gedruckten Zeichen überquert wird.
  6. Dokument nach Anspruch 5, dadurch gekennzeichnet, daß das Wasserzeichennetz (100) als Quadrat aufgebaut ist.
  7. Dokument nach Anspruch 6, dadurch gekennzeichnet, daß die Ränder (103) des Quadrates facettiert sind.
  8. Dokument nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Bänder (201, 202) zum Aufteilen der gedruckten Zeichen ein und dieselbe vorgegebene Breite (e) haben, welche eine Funktion des Winkels (β) zwischen der gemeinsamen Richtung (DC) der Ausbreitung der Welle des Wasserzeichennetzes (100) und der Richtung (DD) der Aufteilungsbänder (201, 202) ist, wobei der Winkel (β) größer ist als ein Bezugswinkel (β₀), welcher einer Bandbreite (e₀) entspricht, die gleich der Hälfte der Breite (1) des Dokuments (1) ist.
  9. Dokument nach Anspruch 8, dadurch gekennzeichnet, daß die Breite (e) der Aufteilungsbänder (201, 202) gegeben ist durch die Gleichung:
    Figure imgb0007
     wobei T die Länge der Welle des Wasserzeichennetzes (100) ist.
  10. Dokument nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Bänder (201, 202) zum Aufteilen der gedruckten Zeichen ein- und dieselbe Breite (e) aufweisen, welche nur von der gesuchten Codierung und nicht von dem Winkel (β) zwischen der gemeinsamen Richtung (DC) der Ausbreitung der Welle des Wassenzeichennetzes (100) und der Richtung (DD) der Aufteilungsbänder (201, 202) abhängt, wobei dieser Winkel (β) kleiner ist als ein Bezugswinkel (β₀), welcher einer Bandbreite (e₀) entspricht, die gleich der Hälfte der Breite (1) des Dokumentes (1) ist.
  11. Dokument nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die Zeichen (G) des Dokuments (1) mit zwei Tinten derselben Farbe gedruckt sind, wobei die eine auf eine vorgegebene Anregung reagiert und die andere nicht, um die Aufteilung der Zeichen in parallele Bänder (201, 201) zu definieren.
  12. Dokument nach Anspruch 11, dadurch gekennzeichnet, daß die Zeichen (G) auch mit anderen Tinten gedruckt sind, welche nicht genauso auf die besagte vorgegebene Anregung reagieren, welche beispielsweise kein Infrarotlicht absorbieren, um möglicherweise gleiche Zeichen auf der Rückseite des Dokuments vorzusehen.
  13. Dokument nach Anspruch 1 und nach Anspruch 11 oder 12, mit gedruckten Zeichen (G) auf beiden Seiten, dadurch gekennzeichnet, daß die Bänder (201, 202) zum Aufteilen der Zeichen auf der Vorderseite oder auf der Rückseite oder auf der Vorderseite und der Rückseite des Dokumentes (1) codiert sind.
  14. Dokument nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, daß die Zeichen (G) des Dokuments (1) mit zwei Tinten gedruckt sind, wobei die eine Tinte Infrarotlicht reflektiert und die andere nicht.
  15. Dokument nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß das Dokument eine Banknote ist, dessen erste und zweite Sicherheitsmarke (100, 200) der Authentisierung der Banknote dienen und dessen zweite Sicherheitsmarke (200) der mechanischen Unterscheidung des Geldwertes der Banknote dient.
EP92401055A 1991-04-18 1992-04-15 Wertpapier oder Sicherheitsdokument mit gedruckten Kennzeichen und Sicherheitselementen Expired - Lifetime EP0509916B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9104782A FR2675428B1 (fr) 1991-04-18 1991-04-18 Document fiduciaire ou de securite presentant un graphisle imprime et des signes de securite.
FR9104782 1991-04-18

Publications (2)

Publication Number Publication Date
EP0509916A1 EP0509916A1 (de) 1992-10-21
EP0509916B1 true EP0509916B1 (de) 1995-11-08

Family

ID=9412001

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92401055A Expired - Lifetime EP0509916B1 (de) 1991-04-18 1992-04-15 Wertpapier oder Sicherheitsdokument mit gedruckten Kennzeichen und Sicherheitselementen

Country Status (6)

Country Link
EP (1) EP0509916B1 (de)
DE (1) DE69205875T2 (de)
FR (1) FR2675428B1 (de)
IE (1) IE74178B1 (de)
OA (1) OA09539A (de)
RU (1) RU2069626C1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100540321C (zh) * 2001-09-07 2009-09-16 Kba-吉奥里股份有限公司 用于印刷品的控制单元

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9930028D0 (en) * 1999-12-21 2000-02-09 Armatic Ab Authentication of designed surfaces
NL1018485C2 (nl) 2001-07-06 2003-01-08 Nl Bank Nv Serie waardedocumenten voorzien van een watermerk in de vorm van een streepjescode.
CA2399356C (en) 2001-09-07 2012-01-24 Kba-Giori S.A. Control element for printed articles
DE10213794B4 (de) * 2002-03-27 2010-04-01 Giesecke & Devrient Gmbh Sicherheitspapier, Sicherheits- und Wertdokument, sowie Verfahren und Papiersieb zur Herstellung eines Sicherheitspapiers
US7207490B2 (en) 2003-03-24 2007-04-24 Giesecke & Devrient Gmbh Security element
DE102010009976A1 (de) * 2010-03-03 2011-09-08 Giesecke & Devrient Gmbh Wertdokument mit registergenau positioniertem Sicherheitselement

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0093009B2 (de) * 1982-04-27 1993-11-03 The Governor And Company Of The Bank Of England Herstellung eines eine reflektierende Fälschungsschutzvorrichtung aufweisenden Blattelements
ZW3287A1 (en) * 1986-02-24 1988-09-07 Moore Business Forms Inc Document bearing characteristic ink-printed indicia juxtaposed with corresponding characteristic synthetic watermark and method for producing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100540321C (zh) * 2001-09-07 2009-09-16 Kba-吉奥里股份有限公司 用于印刷品的控制单元

Also Published As

Publication number Publication date
OA09539A (fr) 1992-11-15
RU2069626C1 (ru) 1996-11-27
DE69205875D1 (de) 1995-12-14
IE921298A1 (en) 1992-10-21
EP0509916A1 (de) 1992-10-21
IE74178B1 (en) 1997-07-16
DE69205875T2 (de) 1996-06-13
FR2675428A1 (fr) 1992-10-23
FR2675428B1 (fr) 1993-08-27

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