EP1295262B2 - Procede et dispositif pour la verification d'authenticite de documents - Google Patents

Procede et dispositif pour la verification d'authenticite de documents Download PDF

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Publication number
EP1295262B2
EP1295262B2 EP01962728.0A EP01962728A EP1295262B2 EP 1295262 B2 EP1295262 B2 EP 1295262B2 EP 01962728 A EP01962728 A EP 01962728A EP 1295262 B2 EP1295262 B2 EP 1295262B2
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EP
European Patent Office
Prior art keywords
authenticity
documents
criteria
document
class
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.)
Expired - Lifetime
Application number
EP01962728.0A
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German (de)
English (en)
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EP1295262A2 (fr
EP1295262B1 (fr
Inventor
Helmut Karl Reinisch
Karl Hermann Weilacher
Lukas LÖFFLER
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.)
Giesecke and Devrient Currency Technology GmbH
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Giesecke and Devrient Currency Technology GmbH
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Application filed by Giesecke and Devrient Currency Technology GmbH filed Critical Giesecke and Devrient Currency Technology GmbH
Priority to EP20100011637 priority Critical patent/EP2278559A3/fr
Publication of EP1295262A2 publication Critical patent/EP1295262A2/fr
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Publication of EP1295262B1 publication Critical patent/EP1295262B1/fr
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    • 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
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D11/00—Devices accepting coins; Devices accepting, dispensing, sorting or counting valuable papers
    • G07D11/20—Controlling or monitoring the operation of devices; Data handling
    • G07D11/30—Tracking or tracing valuable papers or cassettes

Definitions

  • the invention relates to a device for checking the authenticity of documents, in particular bank notes, documents of value or security documents, according to the preamble of the independent claims.
  • the authenticity of documents is generally checked by measuring certain authenticity features, for example optical, electrical or magnetic features, on a document to be checked and then checking the measured authenticity features on the basis of specified authenticity criteria. For example, the optical reflection behavior of the document is measured as an authenticity feature and then checked whether the measured reflection behavior falls below or exceeds a certain threshold value as an associated authenticity criterion. Depending on the test result, the document is classified as genuine or false.
  • certain authenticity features for example optical, electrical or magnetic features
  • An increase in the reliability in the detection of forgeries can be achieved, inter alia, by tightening the authenticity criteria when checking certain authenticity features, for example by raising or lowering threshold values.
  • the authenticity criteria cannot be tightened arbitrarily, since otherwise the proportion of genuine documents not recognized as genuine - and possibly rejected or classified as false - would be too high.
  • bank note processing machines for example, which are used in particular in commercial banks for deposit checking and accounting, this would lead to increased expenditure in the manual and possibly further machine post-processing of bank notes that are not recognized as genuine.
  • counterfeit bank notes are therefore limited by the required low proportion of genuine bank notes not recognized as genuine. This is particularly problematic if, due to "soft" authenticity criteria, forgeries are not recognized as such and are put back into circulation, for example after a customer has deposited counterfeit banknotes at self-service recycling machines and then issues the banknotes not identified as counterfeit to other customers .
  • Known method relates to the determination of a sorting class from a number of banknote properties, such as denomination, security features and soiling.
  • measurement results for the bank note properties are first mapped onto discrete classes and combined to form a class vector.
  • the class vector is finally compared with individual rule vectors which each correspond to a specific sorting class. If the class vector of the bank note matches a rule vector, the bank note is assigned the sorting class corresponding to the respective rule vector.
  • a device for recognizing bank notes in which a digital image of the bank note is recorded and compared with a previously stored comparison image of a reference bank note. If a sufficiently reliable result is not obtained in a first comparison, in particular on one half of the bank note, the comparison can be repeated in other areas of the bank note, for example with other comparison values. This, however, opens up the possibility of specifically contaminating or damaging security-relevant areas of a counterfeit banknote to check other areas with possibly easier to imitate security features and thus - incorrectly - to bring about a positive check result
  • the object of the present invention is to provide methods and devices for authenticity checking with which documents can be checked with increased reliability, in particular without a simultaneous increase in the proportion of genuine documents incorrectly recognized as not being genuine.
  • At least two different authenticity classes are provided, each with one or more authenticity criteria, the individual authenticity classes differing from one another in at least one authenticity criterion.
  • an authenticity class is selected from the different authenticity classes depending on the ascertained condition of a document to be checked and the document is checked using the authenticity criteria of the selected authenticity class, with clean and undamaged documents being checked with much stricter authenticity criteria than heavily soiled or damaged documents.
  • the selected authenticity class is assigned to the document if its Authenticity criteria are met by the document.
  • the authenticity criteria are, for example, threshold values or intervals for the authenticity features used for checking.
  • optical, magnetic, electrical or physical features can be used as authenticity features, for example optical reflection, transmission or emission, magnetic permeability, electrical conductivity, dielectric constant, thickness and format of the document and watermarks.
  • the invention is based on the idea of summarizing different authenticity criteria in the authenticity check of documents in several authenticity classes, the requirements for authenticity differing depending on the authenticity class, since each authenticity class has differently strict authenticity criteria. If, for example, an authenticity class with high requirements for authenticity is selected, e.g. with very high threshold values for optical reflection or transmission, the authenticity of documents that meet the authenticity criteria of this selected authenticity class can be affirmed with high probability. Documents which do not meet the authenticity criteria of a selected authenticity class can be checked using further selected authenticity classes with lower authenticity requirements, for example lower threshold values, whereby their authenticity can be affirmed with a correspondingly lower probability. Overall, the authenticity property, i.e. the measured authenticity features, of the documents to be checked is divided into different authenticity classes.
  • the denomination of the document is determined and then the authenticity class is selected as a function of the denomination of the document.
  • the denomination is the value or currency of the document to be checked.
  • the condition of the document is generally given by characteristics such as degree of soiling, limpness, damage such as cracks, holes or missing parts in the printed image, as well as foreign bodies such as adhesive strips.
  • the selection of the authenticity class for the authenticity check of a document is made depending, for example, on the degree of soiling of the document, with clean and undamaged documents being checked with significantly stricter authenticity criteria, e.g. higher threshold values, than heavily soiled or damaged documents. This significantly increases the reliability of the forgery detection of clean or slightly soiled documents. Overall, this state-dependent authenticity check enables documents in very good condition to be identified as genuine or false with a high degree of reliability. Since this only intensifies the checking of documents in very good condition, the proportion of genuine documents that are not recognized as genuine remains low.
  • the authenticity criteria used for the authenticity check can be determined on the basis of forged documents.
  • the authenticity check with defined authenticity criteria is expanded by an additional authenticity check with additional authenticity criteria, the additional authenticity criteria being determined on the basis of forged documents.
  • the determination of the additional authenticity criteria generally takes place in a separate process, e.g. in specially provided facilities in which forged documents are examined, in particular for characteristic differences from genuine documents. From the differences found, additional authenticity criteria are determined, which are then fed to the authenticity checking method. Documents are still checked using fixed authenticity criteria and classified as genuine if the authenticity criteria are met.
  • forgeries can be recognized if the checked documents do not meet the additional authenticity criteria determined on known forgeries, which preferably relate to characteristic differences between a found forgery and genuine documents. In this way, increased reliability is achieved in the detection of counterfeits, in particular with regard to known counterfeits that are in circulation.
  • FIG. 1 shows the schematic structure of a device for checking the authenticity of documents according to the invention.
  • the documents 10, for example bank notes, provided in an input device 11 are withdrawn individually from the input device 11 and with the aid of a transport system 14 to the output device 12 promoted.
  • There the documents 10 are sorted into three different sorting classes and output to corresponding output compartments 13.
  • On the way between input device 11 and output device 12, a document 10 to be checked is transported past a measuring device 15.
  • the measuring device 15 measures the authenticity features of the document 10 to be checked. State features characterizing the state of the document 10 are also measured.
  • the dashed line in the measuring device 15 is intended to indicate that the measuring device 15 can have two or possibly more sub-devices in which authenticity and condition features can be measured separately.
  • the measuring device 15 is used to measure only one side of the document 10 to be checked.
  • the device can also be designed so that the document 10 can be measured from both sides, for example by two oppositely arranged measuring devices 15 through which the document 10 is transported.
  • Information about the features measured in the measuring device 15 is transmitted to an evaluation device 16 in which the authenticity check according to the invention takes place.
  • the selection of a specific authenticity class and its assignment to the document 10 to be checked is preferably implemented by a computer program.
  • the computer program it is checked, for example, whether an authenticity feature measured on the document 10 to be checked, e.g. the optical reflection, is greater than a threshold value for the optical reflection belonging to the determined authenticity class. If the test result is positive, the specific authenticity class is assigned to the document 10, e.g. by writing a number characterizing the authenticity class in a variable characterizing the authenticity of the document 10. If the test result is negative, the computer program continues the test of the measured authenticity feature on the basis of lower threshold values belonging to other authenticity classes, i.e.
  • the status of the document 10 is also determined, e.g. from the measured status features.
  • the document 10 is then preferably assigned one of several status classes which are characteristic of the respective status of the document to be checked.
  • three status classes are usually provided, namely for an unusable (unfit), usable (fit) or very good (ATM-fit) status.
  • the selection of the authenticity class in the subsequent authenticity check then takes place as a function of the status class assigned to the document 10 to be checked.
  • banknotes in very good condition (ATM-fit) are subjected to very strict authenticity criteria, while banknotes in unusable or usable condition (unfit or fit) have to meet less strict authenticity criteria of other authenticity classes in order to be classified as genuine.
  • an additional authenticity check is also possible here for an additional authenticity check to be carried out on documents 10 of a certain condition class, for example on banknotes in a usable (fit) or very good (ATM-fit) condition.
  • Such an additional authenticity check can take place, for example, on the basis of already measured data on individual authenticity features.
  • the determination of the denomination can in principle also take place via the measuring device 15 and the evaluation device 16, but if necessary this can also be carried out in separate measuring and evaluation devices.
  • the documents 10 are divided into one or more sorting classes and output to corresponding output compartments 13.
  • the output device 12 is controlled by the evaluation device 16 in such a way that banknotes - possibly of only one desired denomination - are output in a first of the output compartments 13, which have a very good (ATM-fit) condition and an authenticity class with high requirements the authenticity, ie strict authenticity criteria, has been assigned and which are in a desired position, ie a specific print pattern is visible from above and, if necessary, oriented in a specific way.
  • ATM-fit very good
  • banknotes to which no authenticity class could be assigned and / or which are not in a desired position and / or possibly do not belong to the desired denomination are output into a second output compartment, the so-called reject compartment.
  • all remaining banknotes are output in a third output compartment, ie usable (fit), unusable (unfit) and banknotes to which an authenticity class with lower authenticity requirements - ie less strict authenticity criteria - has been assigned.
  • banknotes of a certain denomination are entered in a mixed position, then with this sorting mode those banknotes of a certain denomination can be sorted out which are very likely to be genuine, in very good condition (ATM-fit) and at the same time in a desired location. Bank notes that meet these criteria can then be made available for immediate re-issue, for example in a self-service recycling machine.
  • ATM-fit very good condition
  • Figure 2 shows the schematic structure of a system for checking authenticity on the basis of authenticity criteria which were determined on forged documents.
  • the way such a system works differs from that in Figure 1 illustrated example mainly in that the authenticity check carried out in the evaluation device 16 takes place in two sub-steps.
  • the authenticity check is carried out using authenticity criteria, which are preferably divided into authenticity classes.
  • the selection of the authenticity class can here, as already in connection with Figure 1 has been explained, depending on the determined state of the document 10 to be checked. If the measured authenticity features meet the specified authenticity criteria, the document 10 is assigned the corresponding authenticity class.
  • a second sub-step of the authenticity check there is an additional check using authenticity criteria that were determined on known forged documents.
  • the determination of these authenticity criteria takes place in bank note checking machines suitable for this purpose, for example in a central bank or with a corresponding service provider. For reasons of data reduction, these are preferably authenticity criteria which are characteristic of the difference between a forged and a genuine document.
  • the authenticity criteria used in the second substep of the authenticity check are transmitted in the example shown by a control device 31, e.g. from a server of a central bank or a central service provider, via a wired or wireless connection 32 to one or more test stations 30 at the same time.
  • the corresponding data can, however, also be transmitted using suitable data carriers, for example by flash card, memory modules, floppy, CD or DVD.
  • the document 10 can be identified with a high degree of probability as a forgery, even if it meets the authenticity criteria in the first sub-step of the authenticity check.
  • the chronological order of the two partial steps can be chosen as desired.
  • this system allows features and criteria for checking the authenticity of banknotes to be updated quickly and easily in any number of test stations 30 at the same time, so that a high level of reliability is ensured in the detection of counterfeit banknotes in circulation.
  • FIG. 3 shows the schematic structure of a system for applying the authenticity check according to the invention.
  • Documents 10 in this example bank notes, are paid into a commercial bank 39 by a depositor. The payment can be made at the terminal of a self-service recycling machine, for example.
  • the checking station 30 which can be part of the terminal, the bank notes are checked for authenticity. If the bank notes meet the very strict authenticity criteria of a selected authenticity class, they can be made available for immediate further output, for example at the same terminal, at other output terminals 34 and / or at a bank counter 36.
  • All banknotes that do not meet these very strict authenticity criteria are fed to a central checking device 35, for example in a central bank 40, in order to be subjected to a further authenticity check, whereby so-called high security features are also used for checking, on the basis of which a particularly reliable detection counterfeit banknotes is guaranteed.
  • Bank notes which meet these criteria can now be put back into circulation by being returned to a commercial bank 39 for disbursement at output terminals 34 or at a bank counter 36.
  • a control unit 31 is also provided, in which - as already in the description of Figure 2 indicated - on the basis of counterfeit banknotes, additional authenticity criteria are determined which relate to characteristic differences between genuine banknotes and banknotes recognized as counterfeit in the central checking device 35.
  • the forgeries can be transmitted directly from the checking device 35 to the control unit 31.
  • the authenticity criteria determined there are then transmitted via the connection 32 to the checking station 30 and can be used there for checking the authenticity of banknotes - possibly in addition to the authenticity criteria divided into different authenticity classes.
  • characteristic data e.g. print images and / or serial numbers
  • data on the payer e.g. account number and / or personal identification number (PIN)
  • PIN personal identification number
  • characteristic data e.g. print images and / or serial numbers
  • the control unit 31 can either be installed within the commercial bank 39, as shown, or it can be located outside the same, for example at a central service provider.

Claims (4)

  1. Dispositif de vérification d'authenticité de documents, notamment de billets de banque, de documents de valeur ou de sécurité, comprenant
    - au moins un appareillage de mesure (15) destine à la mesure d'au moins une caractéristique d'authenticité sur un document (10) avérifier et
    - au moins un appareillage d'évaluation (16) pour la vérification, à l' aide de critères d'authenticité, de la caractéristique d'authenticité mesurée,
    l'appareillage d'évaluation (16) étant configure pour la vérification d'authenticité du document (10) a l'aide de critères d'authenticité d'une catégorie d'authenticité sélectionnée parmi plusieurs catégories d'authenticité différentes, les catégories d'authenticité comprenant respectivement un ou plusieurs critères d'authenticité et se différenciant les unes des autres en au moins un critère d'authenticité et les exigences concernant l'authenticité étant différemment hautes selon la catégorie respective d'authenticité, caractérisé en ce que
    - l'appareillage de mesure (15) est configure pour la mesure d'au moins une caractéristique d'état caractérisant l'état d'un document (10) a vérifier, et l'appareillage d'évaluation (16) est configure pour la détermination de l'état du document (10) à partir de la caractéristique d'état mesurée ainsi que pour la sélection de la catégorie d'authenticité en fonction de l'état déterminé du document (10), des documents propres et non abimes étant vérifiés avec des critères d'authenticité considérablement plus rigoureux que des documents très salis ou abimes, et
    - la catégorie d'authenticité sélectionnée étant assignée au document (10) quand les critères d'authenticité cette dernière sont remplis par le document (10).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'un appareillage de délivrance (12) destine à la délivrance de documents (10) tries selon leur catégorie d'authenticité et/ou leur état et/ou leur valeur unitaire est prévu.
  3. Dispositif selon une des revendications de 1 à 2, caractérisé en ce l'appareillage d'évaluation (16) est configure pour la vérification d'authenticité du document (10) a l'aide de critères d'authenticité qui furent détermines à l'aide de documents (10) falsifies.
  4. Dispositif selon la revendication 3, caractérisé en ce qu'un appareillage de commande (31) est prévu, qui est configure pour la détermination des critères d'authenticité à l'aide de documents (10) falsifies et a partir duquel des informations concernant les critères d'authenticité détermines à l'aide de documents (10) falsifies sont transmissibles a l'appareillage d'évaluation (16).
EP01962728.0A 2000-06-13 2001-06-11 Procede et dispositif pour la verification d'authenticite de documents Expired - Lifetime EP1295262B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20100011637 EP2278559A3 (fr) 2000-06-13 2001-06-11 Suivi de billets de banque contrefaits

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10029051A DE10029051A1 (de) 2000-06-13 2000-06-13 Verfahren zur Echtheitsprüfung von Dokumenten
DE10029051 2000-06-13
PCT/EP2001/006579 WO2001097180A2 (fr) 2000-06-13 2001-06-11 Procede pour la verification d'authenticite de documents

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP20100011637 Division-Into EP2278559A3 (fr) 2000-06-13 2001-06-11 Suivi de billets de banque contrefaits
EP10011637.5 Division-Into 2010-09-29

Publications (3)

Publication Number Publication Date
EP1295262A2 EP1295262A2 (fr) 2003-03-26
EP1295262B1 EP1295262B1 (fr) 2012-11-21
EP1295262B2 true EP1295262B2 (fr) 2021-01-20

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Application Number Title Priority Date Filing Date
EP01962728.0A Expired - Lifetime EP1295262B2 (fr) 2000-06-13 2001-06-11 Procede et dispositif pour la verification d'authenticite de documents
EP20100011637 Ceased EP2278559A3 (fr) 2000-06-13 2001-06-11 Suivi de billets de banque contrefaits

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Application Number Title Priority Date Filing Date
EP20100011637 Ceased EP2278559A3 (fr) 2000-06-13 2001-06-11 Suivi de billets de banque contrefaits

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US (2) US7552864B2 (fr)
EP (2) EP1295262B2 (fr)
AU (1) AU2001283852A1 (fr)
DE (1) DE10029051A1 (fr)
WO (1) WO2001097180A2 (fr)

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US8006898B2 (en) 2011-08-30
US20030168849A1 (en) 2003-09-11
EP1295262A2 (fr) 2003-03-26
EP2278559A3 (fr) 2012-06-06
EP2278559A2 (fr) 2011-01-26
AU2001283852A1 (en) 2001-12-24
US20090242627A1 (en) 2009-10-01
EP1295262B1 (fr) 2012-11-21
WO2001097180A3 (fr) 2002-05-30
DE10029051A1 (de) 2001-12-20
WO2001097180A2 (fr) 2001-12-20
US7552864B2 (en) 2009-06-30

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