EP3619691A1 - Verfahren und vorrichtung zum verifizieren eines elektrolumineszierenden sicherheitsmerkmals in einem wert- oder sicherheitsdokument - Google Patents
Verfahren und vorrichtung zum verifizieren eines elektrolumineszierenden sicherheitsmerkmals in einem wert- oder sicherheitsdokumentInfo
- Publication number
- EP3619691A1 EP3619691A1 EP18721773.2A EP18721773A EP3619691A1 EP 3619691 A1 EP3619691 A1 EP 3619691A1 EP 18721773 A EP18721773 A EP 18721773A EP 3619691 A1 EP3619691 A1 EP 3619691A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- security feature
- electroluminescent
- output signal
- input signal
- luminescence
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/1205—Testing spectral properties
-
- 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
- G07D7/02—Testing electrical properties of the materials thereof
-
- 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
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
-
- 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
- G07D7/205—Matching spectral properties
Definitions
- the invention relates to a method and an apparatus for verifying an electroluminescent security feature in a value or security document.
- electroluminescent security features are used.
- printing inks and preparations with electroluminescent pigments are used, which exhibit a luminescence in the visible and / or non-visible spectral range when excited in a static or dynamic electric field.
- electroluminescent pigment exhibits a characteristic
- Luminescence Although only in very few cases is such a luminescence response a signal that can be described as a harmonic wave alone. Rather, analyzes of the luminescence response increasing after the start of an excitation have shown that there is an exponential dependence of the peak value of the luminescence on the electric field component (D. Curie, Sur levente de l'electroluminescence - II. Applications aux kanns experimentaux, J. Phys , 1953, 14 (12), pp- 672-686). In the literature, an exponential function is set up for the increase. By contrast, the luminescence response decaying after switching off the excitation is usually described only qualitatively, for example as hyperbolic. As a rule, this has very strong nonlinear courses with secondary maxima.
- electroluminescent pigment which can be exploited to identify the electroluminescent pigment used and in this way the authenticity of a provided with this electroluminescent pigment
- electroluminescent pigment in this case are very inaccurate, since several influencing factors can change the components of the frequency spectrum, without modifying the basic property of the electroluminescent pigment in this case. When external conditions change, this can lead to significant difficulties in verifying the security feature. Verifying should mean checking the authenticity of such a security feature.
- true pigments may lead to a misinterpretation, ie a true pigment is erroneously classified as not true (“false reject").
- the invention is based on the technical problem, a method and a
- a value or security document will be referred to below as a document with at least one security feature.
- This security feature makes it difficult or impossible to forge or copy the value or security document.
- such a value or security document should have an electroluminescent security feature.
- Such a value or security document may, for example, a banknote, a security, a
- Token a ticket, a ticket, a certificate, a seal, a
- Identification document such as a passport, ID card, driver's license or any other trained for individual identification document, be.
- the security or security document may additionally have further security features.
- a symbol is intended to designate a single character unit for transmitting an information content.
- a symbol has a certain symbol shape.
- a symbol is to be understood here in the sense of communication technology, wherein a transmission unit for transmitting data sends symbols with a known symbol transmission rate over a transmission channel and a receiving unit recognizes these symbols and reconstructs the transmitted data.
- the core idea of the invention is the electroluminescent pigment of the
- Luminescence signal is understood as a signal chain of individual members described by means of telecommunications modeling methods.
- the measuring chain here consists of the excitation elements, an element describing the behavior of the electroluminescent pigment and a transmission channel.
- Transmission channel reproduces the disturbing influences in the measuring chain.
- the transmission channel comprises all the influences of the transmission path of the signal. This can For example, be disturbances, which are caused by a sampling frequency, an A D conversion or a light detector used.
- the measured luminescence signal is then modeled as a convolution of a provided characteristic function of the electroluminescent pigment with excitation and with a transmission channel.
- Excitation describes the actual electric field used to excite the electroluminescent pigment.
- the characteristic function provided describes the behavior of the electroluminescent pigment after or during a specific excitation and may correspond, for example, to a classical impulse response, a step response or a sinusoidal response.
- Sinusoid is a waveform that starts over time with a zero signal, followed by a sine half-wave followed and then again consists of a zero signal.
- the provided characteristic function is determined for this purpose by means of numerical methods. If the provided characteristic function is known, following the excitation, a demodulation of the luminescence signal by means of known
- verification of the electroluminescent pigment or of the security feature can thus be understood as a measuring chain consisting of the individual steps: excitation of the electroluminescent pigment by a specific symbol sequence, change of the excitation signal by the signal
- electroluminescent pigment according to the characteristic function, transmission over a transmission channel which mimics all disturbances, demodulating the detected luminescence response by transforming it by means of a
- Reference pigment known characteristic function checking the demodulated result with the symbol sequence of the excitation. For example, the verification occurs such that the measured luminescence signal matches that provided
- the characteristic function for the real electroluminescent reference pigment or its inverted Fourier transform is unfolded, the result is demodulated and the demodulated result is evaluated.
- the authenticity of the security feature is determined on the basis of the evaluation result.
- electroluminescent security feature emitted luminescence and converting the detected luminescence into an output signal by a detection device, transforming the output signal by means of a provided characteristic function by an evaluation device, evaluating the transformed
- Evaluation device issuing the verification decision by the
- the input signal information may be the symbol form or the symbol itself.
- Security feature created in a value or security document comprising an excitation device for exciting the electroluminescent
- a detection device which is designed so as to detect a luminescence emitted by the electroluminescent security feature and to form an output signal
- an evaluation device which is designed to transform the output signal by means of a provided characteristic function, the transformed output signal taking into account at least evaluate input signal information of the input signal, derive therefrom a verification decision and output the derived verification decision.
- access barriers such as a lock, a barrier, etc., or a sorting machine, in which banknotes are selected for destruction, can be controlled via the evaluation device.
- the input signal information is a symbol form which is used to encode information in the input signal.
- Knowledge of the symbol shape then allows demodulation of the transformed output signal and reconstruction of the encoded information.
- the information encoded with the transmitted symbol or symbols does not necessarily have to be determined and evaluated. In some embodiments, it is sufficient to use knowledge of the symbol shape to determine that the symbol transfer by the measured pigment corresponds to transmission by a true reference pigment.
- a verification decision can then be derived by determining the signal-to-noise ratio in the transformed output signal. For example, the security feature is found to be true when a certain threshold signal-to-noise ratio is reached or exceeded.
- Another alternative method for demodulation is, for example, the use of an "integrate and dump" filter, in which a discrete input signal is accumulated cumulatively for a certain number of samples or for a given time window for each step. After the certain number of samples have been counted, the sum is reset to zero ("dump") and the cumulative summation is started again, and then, for example, threshold information can be used to recover the information encoded in the excitation, which method can generally be used if a symbol form of the excitation has a simple rectangular pulse shape.
- Another alternative method uses a Kalman filter, which determines the system response at each time of the sampled luminescence signal and then determines the system response despite noise.
- a so-called Extended Kalman filter is used, ie a non-linear Kalman filter.
- the actual input function of the Kalman filter is the excitation signal of the luminescent substance. Only with correct knowledge of the excitation signal is the system response to be recorded.
- Lumineszenzpigmente are integrated in a real security document, a so-called feedback circuit can be realized, which adapts the input signal, so that the actual excitation of the desired excitation (a desired
- the advantage of the method and the device is that small non-linearities due to the integration and longer time recording, especially when using the Kalman filter, the evaluation hardly affect and spectral shifts in
- Frequency range of the output signal in contrast to the prior art no longer lead to a large error in the evaluation and verification. Furthermore, the DC component of the output signal does not need to be considered separately. Another advantage is that the phase position no longer necessarily needs to be recognized (a so-called phase recovery is not necessary) and the maximum possible signal-to-noise ratio is achieved.
- the luminescent effect of the security feature is modeled as a short-term linear time-invariant system (LTI). That is, it is assumed in a first approximation that the behavior of the electroluminescent effect has both the property of linearity and independent of temporal
- Security feature is found to be true when a correlation function at a given time or in a predetermined time range reaches or exceeds a predetermined threshold.
- a cross-correlation of the transformed output signal with at least a part of the input signal is performed.
- This part of the input signal may in particular be one in the
- the threshold value must be exceeded for a plurality of predetermined times or a plurality of predetermined time ranges, so that the security feature is found to be genuine. If the predetermined threshold or the predetermined thresholds are not exceeded, the
- Reference security feature which is known as genuine derived. Therefore, it is provided in a particularly advantageous embodiment that the characteristic function is determined by means of a calibration measurement, wherein a
- electroluminescent reference security feature is excited and its
- Luminescence is detected and evaluated as a reference output signal.
- Reference security feature by a predetermined input signal by means of an electric field by an exciter, detecting one of the
- Reference security feature emitted luminescence and converting the detected luminescence into a reference output signal by a detection means comprises.
- the characteristic function is then derived from the reference output signal and the predetermined input signal.
- the characteristic function is the inverse of a transfer function of the
- electroluminescent reference security feature wherein the electroluminescent effect of the security feature and the
- Reference security feature is understood as a linear time-invariant system.
- the inverse of the transfer functions can not be determined analytically.
- the inverse of the transfer function is calculated by means of numerical methods. This can be done, for example, by means of the Matlab function "fmincon ()" (for example in Matlab® Version 2016a, a software of The MathWorks, Inc. in Natick, Massachusetts, USA).
- Conditions on or in the device are not constant over time and thus vary from measurement to measurement. Also, a non-optimal or different than individual measurements operation by a user may lead to a variance of conditions on the device. It has therefore proved to be advantageous if changes in the conditions on or in the device are taken into account in the evaluation.
- the transformation of the output signal comprises a deconvolution with an adaptation function.
- the adaptation function forms the influences of the device and the conditions during a measurement (excitation and detection of the device)
- Electroluminescence may be, for example, an actual voltage applied to the excitation of the electroluminescence or an actual distance of the electrodes of the excitation device.
- Deviations that are estimable and / or measurable are estimable and / or measurable.
- the adaptation function is estimated on the basis of measurable parameters by an estimating device. So can
- Exciting means present electrical voltage can be determined.
- An actual distance of the electrodes of the excitation means can also be determined by suitable means. In this way, for example, a caused by vibration of the device harmonic excitation, which by a vibration following change of the plate spacing in the electric field
- the adaptation function is then estimated by the estimator, for example, by estimating a harmonic in the electric field caused by a vibration. Furthermore, a mechanical plate spacing at
- different similar devices may be different and the present electrical voltage may differ from the nominal voltage, so that for each device, the adjustment function must be determined or estimated individually.
- a temperature and general environmental conditions can also be taken into account when estimating.
- the deployment is carried out by means of a Kalman filter.
- a so-called amplifier matrix can be calculated.
- an output signal is transformed by at least one further characteristic function and then evaluated.
- security features each with different electroluminescent pigments, it is possible in this way, in addition to the pure verification of an expected security feature, to determine which security feature or which electroluminescent pigment is present. In this way, security features can be tested for the presence and the authenticity of certain electroluminescent pigments.
- a security feature with a plurality of electroluminescent pigments it is possible in this way, in addition to the pure verification of an expected security feature, to determine which security feature or which electroluminescent pigment is present. In this way, security features can be tested for the presence and the authenticity of certain electroluminescent pigments.
- the characteristic functions may for example be stored in a memory and, if necessary, provided by the latter individually.
- the characteristic function to be used is then selected either automatically, for example by the evaluation device or manually by a user of the device. In the automatic selection, for example, before the verification of the security feature, a type of
- Security document or a security feature can be detected and detected, for example by means of an additional optical detection device, etc., so that the evaluation subsequently based on the recognized type of
- Security document or security feature can select an associated characteristic function from the memory. Furthermore, all the characteristic functions stored in the memory can also be successively checked. Furthermore, it is possible to use different suggestions in verifying the security feature.
- the basic procedure of the method remains the same, only the predetermined input signal is changed. It should be noted here that a characteristic function is used for the transformation, which is optimal in nature for the selected input signal.
- Input signal is composed of a sequence of symbols.
- a sequence can for example consist of symbols which have a rectangular pulse as a symbol form.
- sequence is composed at least partially of at least one sequence of identical symbols.
- the sequence is composed at least partially of different symbols.
- the output signal is filtered before and / or after the transformation.
- Suitable filters for this purpose may be, for example, a bandpass filter, a low-pass filter or a high-pass filter, the filter ideally being adapted to a frequency spectrum of the excitation or the individual symbol form. For example, if a symbol used for coding and excitation contains only certain portions of the frequency spectrum, then the filter is chosen such that those not present in the symbol or symbol form
- Frequency components are filtered out. In this way, disturbances (noise) in these frequency ranges in the overall signal can be suppressed without affecting the proportion of the frequency spectrum necessary for the formation of the symbol.
- the method for verifying is performed several times and authenticity of the security feature is determined only if all verification decisions assess the security feature as genuine.
- Input signal is provided or selected based on another in or on the security document trained security feature.
- another security feature is checked before verification according to the method described, and a selection of the predetermined one based on the verification result of the other security feature or information formed in the other security feature
- Security feature can be further increased by an entanglement and / or plausibility of the security feature takes place with the other security feature. Furthermore, provision can also be made for a security feature to be based on the other security feature formed in or on the security document
- characteristic function is selected for transforming.
- Parts of the device can also be designed individually or combined as a combination of hardware and software, for example as program code that is executed on a microcontroller or microprocessor.
- Luminescence signals is that on the one hand for a sufficient power of the luminescence signals a harmonic or repeatedly pulsed excitation are very beneficial, on the other hand, the pulse, jump, or sinusoidal response takes much longer in time than an excitation cycle.
- a so-called intersymbol interference which makes the luminescence signal look significantly different to an impulse response of a symbol.
- Fig. 1 is a schematic representation of an embodiment of the device for
- FIG. 2 shows a schematic illustration of a further embodiment of the device for verifying an electroluminescent security feature in a value or security document using an adaptation function
- Fig. 3 is a schematic flow diagram of an embodiment of the method for
- FIG. 5 is a schematic overview diagram of an embodiment of the method for verifying an electroluminescent security feature in a value or security document.
- FIG. 1 shows a schematic illustration of an embodiment of the device 1 for verifying an electroluminescent security feature 2 in a value or security document 3.
- the device 1 comprises an excitation device 4, a detection device 5 and an evaluation device 6.
- the value or security document 3 is positioned between two electrodes 7 of the exciter 4.
- the electroluminescent security feature 2 located on the value or security document 3 is excited by means of an electric field by a predetermined input signal 8 for luminescence 9.
- the predetermined input signal 8 is provided, for example, by a modulation device 10 on the electrodes 7.
- the luminescence 9 emitted by the excited electroluminescent security feature 2 is detected by the detection device 5.
- the detection device 5 can be, for example, a spectrometer with a downstream CCD line, which allows a time-resolved detection for a corresponding part of the electromagnetic spectrum. It is also possible to detect the luminescence by means of a photodiode time-resolved. The detection device 5 derives from the detected
- Luminescence an output signal from 1 1 and forwards it to the evaluation device 6 on. Furthermore, another time-resolved measuring detector can also be used.
- an analog-to-digital conversion can be provided after detection, so that the output signal can be provided in digital form, for example as a data stream or data record.
- the evaluation device 6 transforms the output signal 1 1 in one
- Transformation module 13 by means of a characteristic function 12. Such a transformation may be in particular a deployment of the output signal 1 1 with the characteristic function 12.
- the transformed output signal 14 is forwarded to a demodulator module 15 and demodulated there.
- Input signal 8 taken into account. Such input signal information is
- Input signal 8 are used.
- the demodulation may be performed, for example, using a matched filter tuned to the symbol shape.
- a verification module 17 a verification decision 18 is derived, which is then output.
- the verification decision can be performed, for example, using a matched filter tuned to the symbol shape.
- the security feature 2 is found to be true, but if the threshold is not exceeded, the security feature 2 is not found to be true.
- Security feature 2 must be selected. In this case, it is both possible for the selection to be made manually by an operator, and for the selection to be made automatically on the basis of other criteria, for example because the type of the value or security document 3 is known and for this type
- corresponding characteristic function 12 belongs.
- a type of security feature 2 or a type of value or security document 3, for example banknotes of different denominations can be identified and their authenticity can be ascertained.
- the device 1 corresponds to the device 1 shown in FIG. 1, wherein like reference numerals also designate like features.
- the evaluation device 6 in this embodiment has a deployment module 20, which transformed the
- Adaptation function 21 may be, for example, measurable or determinable
- Parameters 22 are estimated and provided by an estimator 23.
- the adaptation function 21 in this case depicts the specific conditions under which the luminescence is excited and detected. These conditions may vary from measurement to measurement and may be due to both a current condition (eg, temperature, vibration, etc.) of the device 1 and a variance in the operation depend on different or the same operator.
- the unfolded transformed output signal 24 is forwarded to the demodulation module 15 and, as already described above (see FIG. 1), evaluated.
- FIG. 3 there is shown a schematic flow diagram of an embodiment of the method for verifying an electroluminescent security feature in a value or security document.
- the method is started, for example, by an operator, an automatic device or a provided start signal. After the start 100 of the method, the value or security document with the electroluminescent security feature is placed between the electrodes of the device (see schematic representation in FIG. 1).
- electroluminescent security feature in an excited state. When relaxing from this excited state emits the electroluminescent
- the emitted luminescence is detected time-resolved by a detection device.
- the detection device may, for example, comprise a photodetector with or without a monochromator connected in front of it. Also, a photodiode or a Charged Coupled Devide (CCD) may be used as the photosensitive member.
- CCD Charged Coupled Devide
- an analog / digital conversion can be provided in this case, so that after the conversion, a digital signal in the form of a data stream or data set is available as an output signal.
- the output signal is filtered in an additional method step 104.
- a low-pass or a bandpass can ensure that a noise component is reduced or non-relevant frequency ranges are removed, for example in addition to one reduce numerical computational effort.
- the filtering is also possible both before and after an A / D conversion.
- a filter is then designed according to analog or digital.
- the output signal is transformed in method step 105 by means of a characteristic function.
- the characteristic function is an inverse of the transfer function of a reference security feature that is known to be genuine.
- the transfer function or the inverse of the transfer function has previously been determined by means of a calibration measurement and numerical methods.
- the transformation of the output signal takes place numerically by means of corresponding arithmetic operations, for example by executing a corresponding program code on a microcontroller or microprocessor designed for this purpose. All subsequent process steps in which the output signal is processed further, in particular, can be performed numerically.
- the adaptation function is determined or calculated from measurable parameters of the device. These measurable parameters can be, for example, a temperature, an electrical voltage between the electrodes of the exciter or a distance of the electrodes of the
- the transformed output signal is evaluated in the next method step 107.
- a demodulation takes place.
- a demodulation takes place.
- Input signal information taken into account Such input signal information may be, for example, a symbol form used in encoding the input signal.
- the evaluation may additionally comprise a further filtering, for example by means of an optimized filter (matched filter) which is tuned to the input signal or the symbol form used in the input signal.
- a discrete input signal is summed cumulatively for a certain number of samples or for a given time window for each step ("Integrate"). After the specified number of samples, the sum is reset to zero ("dump") and the cumulative summation is started again, and then, for example, the information coded in the excitation can be recovered by means of a threshold detection.
- a verification decision is derived from the demodulated output signal.
- a signal-to-noise ratio can be determined and evaluated, wherein the signal-to-noise ratio must exceed a certain threshold, so that the to be verified
- the demodulated output signal can be compared with the input signal.
- correlations with the input signal or a part of the input signal can be performed, wherein the correlation result
- the derived verification decision is subsequently output as an analog or digital signal, for example on an interface designed for this purpose or on a display device designed for this purpose.
- a signal generated on the basis of the derived verification decision can be used, for example, to control a further device, for example a sorting machine or
- Access barriers such as locks, barriers, security gates, etc.
- the process is completed 109.
- the characteristic function to be used must be selected. The selection can be made both manually and automatically, for example, based on a type of security feature or the value or security document. Depending on the type of security feature, an associated characteristic function is then used. In this case, the various characteristic functions for different security features may for example be stored in a memory and, if necessary, retrieved therefrom and made available.
- FIG. 4 shows a schematic overview diagram of a calibration measurement 40.
- a reference security feature 42 is excited by means of a known input signal 41.
- the reference security feature 42 is known to be genuine. Its transfer function 43 is not known, however, it is believed that the electroluminescent pigment of the
- Reference security feature 42 behaves as a linear time invariant (LTI) system.
- LTI linear time invariant
- the luminescence emitted by the reference security feature 42 is detected and converted into a digital reference output signal 44.
- the transfer function 43 can be calculated numerically.
- the inverse 45 of the transfer function 43 which is subsequently used in the method for verification as a characteristic function 12 during the transformation, can then be calculated from the calculated transfer function 43.
- the numerical calculation can be carried out, for example, by means of the Matlab function "fmincon ()" (eg in Matlab® Version 2016a, a software of The MathWorks, Inc. in Natick, Massachusetts, USA)
- the calculation of the characteristic function 12 for the reference security feature 42 may additionally under
- FIG. 5 shows a schematic overview diagram of an embodiment of the invention
- a method of verifying 50 an electroluminescent security feature 2 in a value or security document After being excited with a known input signal 51, the luminescence emitted by the electroluminescent security feature 2 is detected and converted into an output signal 54. Further, an adaptation function 21 for the device is estimated based on measurable parameters.
- the output signal 54 is then transformed with the characteristic function 12 determined in the calibration (see FIG. 4).
- the transformation may include, for example, a deployment 25, 26 of the output signal 54.
- the output signal 54 for example, with the transfer function 43 of
- the transformation may additionally comprise a deconvolution 26 of the output signal 54 with the estimated adaptation function 21.
- the transformed output signal is subsequently evaluated. This can be
- a demodulation with conventional methods include, so that a demodulated signal 55 is available for further evaluation.
- a demodulated signal 55 is available for further evaluation.
- particular consideration is also given to input signal information, for example a symbol form of the symbols used for coding.
- a verification decision 18 is derived, for example by evaluating a signal-to-noise ratio, a
- Correlation factor or a value of the demodulated signal at a given time If these exceed a predetermined threshold, that is
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017207367.5A DE102017207367B3 (de) | 2017-05-02 | 2017-05-02 | Verfahren und Vorrichtung zum Verifizieren eines elektrolumineszierenden Sicherheitsmerkmals in einem Wert- oder Sicherheitsdokument |
| PCT/EP2018/061138 WO2018202676A1 (de) | 2017-05-02 | 2018-05-02 | Verfahren und vorrichtung zum verifizieren eines elektrolumineszierenden sicherheitsmerkmals in einem wert- oder sicherheitsdokument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3619691A1 true EP3619691A1 (de) | 2020-03-11 |
| EP3619691B1 EP3619691B1 (de) | 2022-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18721773.2A Active EP3619691B1 (de) | 2017-05-02 | 2018-05-02 | Verfahren und vorrichtung zum verifizieren eines elektrolumineszierenden sicherheitsmerkmals in einem wert- oder sicherheitsdokument |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3619691B1 (de) |
| DE (1) | DE102017207367B3 (de) |
| WO (1) | WO2018202676A1 (de) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019210762A1 (de) * | 2019-07-19 | 2021-01-21 | Bundesdruckerei Gmbh | Verfahren zur Auswertung von flüchtigen nicht resistenten Anti-Stokes-Lumineszenzstoffen auf Wertdokumenten |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19708543C2 (de) | 1997-03-04 | 2000-12-07 | Bundesdruckerei Gmbh | Wert- und Sicherheitserzeugnis mit lumineszierenden Sicherheitselementen und Verfahren zur Herstellung derselben |
| DE10326644A1 (de) | 2003-06-11 | 2005-01-13 | Bundesdruckerei Gmbh | Wertdokument mit einem Sicherheitselement und Verfahren zur Herstellung des Wertdokuments |
| DE10346636A1 (de) * | 2003-10-08 | 2005-05-12 | Giesecke & Devrient Gmbh | Vorrichtung und Verfahren zur Prüfung von Wertdokumenten |
| DE102011002181A1 (de) * | 2011-04-19 | 2012-10-25 | Bundesdruckerei Gmbh | Verfahren und Vorrichtung zur Überprüfung von Sicherheitsmerkmalen in Sicherheitsdokumenten |
-
2017
- 2017-05-02 DE DE102017207367.5A patent/DE102017207367B3/de active Active
-
2018
- 2018-05-02 WO PCT/EP2018/061138 patent/WO2018202676A1/de not_active Ceased
- 2018-05-02 EP EP18721773.2A patent/EP3619691B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3619691B1 (de) | 2022-04-06 |
| DE102017207367B3 (de) | 2018-08-23 |
| WO2018202676A1 (de) | 2018-11-08 |
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