CH529398A - Method for preventing successful counterfeiting of stamps - Google Patents
Method for preventing successful counterfeiting of stampsInfo
- Publication number
- CH529398A CH529398A CH424971A CH424971A CH529398A CH 529398 A CH529398 A CH 529398A CH 424971 A CH424971 A CH 424971A CH 424971 A CH424971 A CH 424971A CH 529398 A CH529398 A CH 529398A
- Authority
- CH
- Switzerland
- Prior art keywords
- stamps
- information carrier
- stamp
- measured
- stored
- Prior art date
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
- G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06187—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with magnetically detectable marking
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Credit Cards Or The Like (AREA)
Description
Verfahren zur Verhütung erfolgreicher Fälschungen von Wertzeichen
Die Erfindung betrifft ein Verfahren zur Verhütung erfolgreicher Fälschungen von Wertzeichen, die einen Informationsträger mit die Echtheit des Wertzeichens ausweisenden Informationen enthalten.
Es ist bekannt, bei der Echtheitsprüfung von Wertzeichen einen bestimmten Schrift- oder Bildbereich des Prüflings fotoelektrisch abzutasten und den gemessenen Istwert mit einem im Prüfgerät gespeicherten Sollwert zu vergleichen. Die Erfahrungen haben gezeigt, dass eine einigermassen zuverlässige Prüfung nur aufgrund mehrerer voneinander unabhängiger Kriterien möglich ist. Die auch bei echten Wertzeichen unvermeidbaren Streuungen der Druck- und Farbeigenschaften und die bei beidseitig bedruckten Wertzeichen stets vorhandenen Verschiebungen der beiden Drucke gegeneinander führen dazu, dass die Prüfbedingungen nicht beliebig verschärft und die immer perfekter werdenden Fälschungen daher oft nicht mehr erkannt werden können.
Ferner wurde bereits vorgeschlagen, ein Wertzeichen, z. B. eine Banknote, mit einer metallbeschichteten Kunststofffolie zu versehen, die eine elektrisch nachweisbare Struktur aufweist. Ausserdem sind Kreditkar- ten mit einem magnetischen Informationsträger bekannt, der u.a. die Echtheit der Kreditkarte ausweisende Informationen enthält. Dies gestattet die Einführung weiterer Prüfkriterien. Dennoch können Wertzeichen mit einer strukturierten Folie oder mit einem magnetischen Informationsträger verhältnismässig leicht gefälscht werden, wenn die Struktur bzw. der verwendete Code dem Fäl scher bekannt ist.
Es wurde nun gefunden, dass die bei echten Wertzeichen stets vorhandenen Toleranzen des Druckbildes und der Farbeigenschaften dazu ausgenützt werden können, um bei der automatisierten Echtheitsprüfung nicht erkennbare Fälschungen mit einer Sicherheit zu verhüten, die bisher als unerreichbar galt.
Das erfindungsgemässe Verfahren zur Verhütung er- folgreicher Fälschungen von Wertzeichen, die einen Informationsträger mit die Echtheit des Wertzeichens ausweisenden Informationen enthalten, ist dadurch gekennzeichnet, dass bei der Herstellung der Wertzeichen gegebene individuelle Grössen derselben gemessen und die Messwerte auf dem Informationsträger des jeweiligen Wertzeichens gespeichert werden und dass bei der Echtheitsprüfung die individuellen Grössen des Wertzeichens nachgemessen und mit den auf seinem Informationsträger gespeicherten Werten verglichen werden. Hierbei kann ein Falsifikat, dessen Druck und dessen Informationsträger für sich allein betrachtet als echt befunden würden, dennoch als solches erkannt werden.
Vorteilhaft werden Farb- und/oder Druckeigenschaften des Wertzeichens gemessen und in codierter Form auf den Informationsträger eingegeben. Dies gestattet, bei der Echtheitsprüfung der Wertzeichen die bekannten fotoelektrischen und mechanischen Methoden zur Prüfung der Farbeigenschaften, des Druckbildes, der Höhe des Farbauftrages usw. in üblicher Weise anzuwenden, wobei dann aber der gemessene Istwert nicht mit einem im Prüfgerät, sondern mit einem auf dem Informationsträger des Prüflings gespeicherten Sollwert verglichen wird.
Ausser den Farb- und Druckeigenschaften fallen für die Messung und Speicherung auf dem Informationsträger auch andere individuelle Grössen wie Papiereigenschaften, Papierabmessungen usw. in Betracht.
Auf dem Informationsträger können auch Daten gespeichert werden, die die Stellen auf dem Wertzeichen angeben, an denen die individuellen Grössen gemessen wurden. Die Messung kann beispielsweise in einem vorgegebenen Abstand entlang einer Seite des Wertzeichens bzw. einer Kante des Informationsträgers erfolgen. Die- ser Abstand kann für jedes Wertzeichen individuell gewählt und in codierter Form auf dem Informationsträger gespeichert werden.
Als Informationsträger kann eine Metallfolie verwendet werden, in die die Informationen mit Hilfe von Laserstrahlen oder Elektronenstrahlen in Form anikro- skopisch kleiner, durchgehender Löcher eingegeben sind. Die hierzu erforderlichen einmaligen, aber sehr hohen Investitionen lassen eine Fälschung als nicht lohnenswert erscheinen.
Method for preventing successful counterfeiting of stamps
The invention relates to a method for preventing successful counterfeiting of stamps which contain an information carrier with information identifying the authenticity of the stamp.
It is known to photoelectrically scan a specific text or image area of the test item when checking the authenticity of stamps and to compare the measured actual value with a nominal value stored in the testing device. Experience has shown that a reasonably reliable test is only possible on the basis of several independent criteria. The inevitable scatter of the printing and color properties, even with genuine stamps, and the shifts between the two prints that are always present with stamps printed on both sides mean that the test conditions are not arbitrarily tightened and the increasingly perfect forgeries can therefore often no longer be recognized.
It has also already been proposed to use a stamp, e.g. B. to provide a bank note with a metal-coated plastic film which has an electrically detectable structure. In addition, credit cards with a magnetic information carrier are known which, among other things, Contains information proving the authenticity of the credit card. This allows the introduction of further test criteria. Nevertheless, stamps with a structured film or with a magnetic information carrier can be forged relatively easily if the structure or the code used is known to the forger.
It has now been found that the tolerances of the printed image and the color properties that are always present in genuine stamps can be used to prevent counterfeits that cannot be recognized during the automated authenticity check with a level of security that was previously considered unattainable.
The inventive method for preventing successful counterfeiting of stamps that contain an information carrier with information identifying the authenticity of the stamp is characterized in that given individual sizes of the stamps are measured and the measured values are stored on the information carrier of the respective stamp and that during the authenticity check the individual sizes of the stamp are measured and compared with the values stored on its information carrier. A forgery, the print and the information carrier of which would be found to be genuine on their own, can nevertheless be recognized as such.
The color and / or printing properties of the stamp are advantageously measured and entered on the information carrier in coded form. This allows the known photoelectric and mechanical methods for checking the color properties, the print image, the amount of color applied etc. to be used in the usual way when checking the authenticity of the stamps, but then the measured actual value is not with one in the tester, but with one on the Information carrier of the test object stored target value is compared.
In addition to the color and print properties, other individual parameters such as paper properties, paper dimensions, etc. can also be considered for the measurement and storage on the information carrier.
Data can also be stored on the information carrier which indicate the locations on the stamp at which the individual sizes were measured. The measurement can take place, for example, at a predetermined distance along one side of the stamp or an edge of the information carrier. This distance can be selected individually for each stamp and stored in coded form on the information carrier.
A metal foil into which the information is entered in the form of anicroscopic small, through holes with the aid of laser beams or electron beams can be used as the information carrier. The one-time, but very high investments required for this make a fake seem unworthy.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH424971A CH529398A (en) | 1971-03-23 | 1971-03-23 | Method for preventing successful counterfeiting of stamps |
NL7108211A NL7108211A (en) | 1971-03-23 | 1971-06-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH424971A CH529398A (en) | 1971-03-23 | 1971-03-23 | Method for preventing successful counterfeiting of stamps |
Publications (1)
Publication Number | Publication Date |
---|---|
CH529398A true CH529398A (en) | 1972-10-15 |
Family
ID=4272575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH424971A CH529398A (en) | 1971-03-23 | 1971-03-23 | Method for preventing successful counterfeiting of stamps |
Country Status (2)
Country | Link |
---|---|
CH (1) | CH529398A (en) |
NL (1) | NL7108211A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2542802A1 (en) * | 1974-10-01 | 1976-04-15 | Grey Lab Establishment | TEST DEVICE FOR DOCUMENTS |
DE2829778A1 (en) * | 1978-07-06 | 1980-01-17 | Gao Ges Automation Org | Credit or identity card carrying machine-readable information - contains paper ply with plastics coating filled with absorbent and/or scattering, scannable material |
DE2936409A1 (en) * | 1979-09-08 | 1981-03-19 | Hermann 7742 St. Georgen Stockburger | METHOD FOR BACKING UP DATA |
DE3000560A1 (en) | 1980-01-09 | 1981-09-03 | Stockburger, Hermann, 7742 St. Georgen | METHOD AND DEVICE FOR LABELING AND IDENTIFYING IMITATION-PROOF DATA CARRIERS |
DE3216867A1 (en) * | 1981-05-04 | 1982-12-02 | Europäische Atomgemeinschaft (EURATOM), Kirchberg | USE OF SURFACE STRUCTURES AS A UNIQUE RANDOM IDENTITY MARKER |
US4663622A (en) * | 1980-06-23 | 1987-05-05 | Light Signatures, Inc. | Non-counterfeitable document system |
DE3713279A1 (en) * | 1987-04-18 | 1988-11-03 | Feldmuehle Ag | METHOD FOR DETECTING DIMENSIONAL ERRORS |
US4785290A (en) * | 1980-06-23 | 1988-11-15 | Light Signatures, Inc. | Non-counterfeitable document system |
US4837426A (en) * | 1987-01-16 | 1989-06-06 | Rand, Mcnally & Company | Object verification apparatus and method |
US4906988A (en) * | 1987-01-27 | 1990-03-06 | Rand Mcnally & Co. | Object verification system and method |
US4985614A (en) * | 1987-01-16 | 1991-01-15 | Rand Mcnally & Company | Object verification apparatus and method |
US5177344A (en) * | 1990-10-05 | 1993-01-05 | Rand Mcnally & Company | Method and appparatus for enhancing a randomly varying security characteristic |
US5216229A (en) * | 1989-06-05 | 1993-06-01 | Rand Mcnally & Company | Verifiable object having incremental key |
DE102016009260A1 (en) * | 2016-07-29 | 2018-02-01 | Giesecke+Devrient Mobile Security Gmbh | Fingerprint of a security document |
-
1971
- 1971-03-23 CH CH424971A patent/CH529398A/en not_active IP Right Cessation
- 1971-06-15 NL NL7108211A patent/NL7108211A/xx unknown
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2560672C2 (en) * | 1974-10-01 | 1989-10-12 | Gao Gesellschaft Fuer Automation Und Organisation Mbh, 8000 Muenchen, De | |
DE2542802A1 (en) * | 1974-10-01 | 1976-04-15 | Grey Lab Establishment | TEST DEVICE FOR DOCUMENTS |
DE2858266C2 (en) | 1978-07-06 | 1991-08-29 | GAO Gesellschaft für Automation und Organisation mbH, 8000 München | Valuables such as credit or ID cards |
DE2858685C2 (en) * | 1978-07-06 | 1989-06-29 | Gao Gesellschaft Fuer Automation Und Organisation Mbh, 8000 Muenchen, De | |
DE2829778A1 (en) * | 1978-07-06 | 1980-01-17 | Gao Ges Automation Org | Credit or identity card carrying machine-readable information - contains paper ply with plastics coating filled with absorbent and/or scattering, scannable material |
US4982073A (en) * | 1978-07-06 | 1991-01-01 | Gao Gesellschaft Fur Automation Und Organisation Mbh | Token such as a credit or identification card and an apparatus for testing the token or card |
US4926031A (en) * | 1978-07-06 | 1990-05-15 | Gao Gesellschaft Fur Automation Und Organisation Mbh | Token such as credit or identification card and an apparatus for testing the token or card |
DE2936409A1 (en) * | 1979-09-08 | 1981-03-19 | Hermann 7742 St. Georgen Stockburger | METHOD FOR BACKING UP DATA |
DE3000560A1 (en) | 1980-01-09 | 1981-09-03 | Stockburger, Hermann, 7742 St. Georgen | METHOD AND DEVICE FOR LABELING AND IDENTIFYING IMITATION-PROOF DATA CARRIERS |
US4785290A (en) * | 1980-06-23 | 1988-11-15 | Light Signatures, Inc. | Non-counterfeitable document system |
US4663622A (en) * | 1980-06-23 | 1987-05-05 | Light Signatures, Inc. | Non-counterfeitable document system |
DE3216867A1 (en) * | 1981-05-04 | 1982-12-02 | Europäische Atomgemeinschaft (EURATOM), Kirchberg | USE OF SURFACE STRUCTURES AS A UNIQUE RANDOM IDENTITY MARKER |
US4837426A (en) * | 1987-01-16 | 1989-06-06 | Rand, Mcnally & Company | Object verification apparatus and method |
US4985614A (en) * | 1987-01-16 | 1991-01-15 | Rand Mcnally & Company | Object verification apparatus and method |
US4906988A (en) * | 1987-01-27 | 1990-03-06 | Rand Mcnally & Co. | Object verification system and method |
DE3713279A1 (en) * | 1987-04-18 | 1988-11-03 | Feldmuehle Ag | METHOD FOR DETECTING DIMENSIONAL ERRORS |
US5216229A (en) * | 1989-06-05 | 1993-06-01 | Rand Mcnally & Company | Verifiable object having incremental key |
US5177344A (en) * | 1990-10-05 | 1993-01-05 | Rand Mcnally & Company | Method and appparatus for enhancing a randomly varying security characteristic |
USRE35599E (en) * | 1990-10-05 | 1997-09-02 | Docusystems, Inc. | Method and apparatus for enhancing a randomly varying security characteristic |
DE102016009260A1 (en) * | 2016-07-29 | 2018-02-01 | Giesecke+Devrient Mobile Security Gmbh | Fingerprint of a security document |
Also Published As
Publication number | Publication date |
---|---|
NL7108211A (en) | 1972-09-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUE | Assignment |
Owner name: COPYTEX GMBH SICHERHEITSSYSTEME |
|
PL | Patent ceased |