EP1096441A2 - Dispositif et procédé pour vérifier des matières imprimées - Google Patents

Dispositif et procédé pour vérifier des matières imprimées Download PDF

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Publication number
EP1096441A2
EP1096441A2 EP00500182A EP00500182A EP1096441A2 EP 1096441 A2 EP1096441 A2 EP 1096441A2 EP 00500182 A EP00500182 A EP 00500182A EP 00500182 A EP00500182 A EP 00500182A EP 1096441 A2 EP1096441 A2 EP 1096441A2
Authority
EP
European Patent Office
Prior art keywords
light
document
checked
graphic matter
identifying
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.)
Withdrawn
Application number
EP00500182A
Other languages
German (de)
English (en)
Other versions
EP1096441A3 (fr
Inventor
Francisco Garcia Leal
Angel Sanchez Blaya
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.)
Normalizacion Europea SA
Original Assignee
Normalizacion Europea SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from ES009902341A external-priority patent/ES2159254B1/es
Application filed by Normalizacion Europea SA filed Critical Normalizacion Europea SA
Publication of EP1096441A2 publication Critical patent/EP1096441A2/fr
Publication of EP1096441A3 publication Critical patent/EP1096441A3/fr
Withdrawn legal-status Critical Current

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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
    • G07D7/128—Viewing devices
    • 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
    • G07D7/121—Apparatus characterised by sensor details

Definitions

  • the present invention relates to a device for identifying graphic matter, which is intended to examine graphic matter for the purpose of identifying printed documents on the basis of the chromatic examination of inks, paper used, and other elements which make up the document to be examined, in accordance with Claims 1 to 5.
  • the present invention also relates to a method of identifying graphic matter according to Claims 6 and 7.
  • the known apparatus corresponding to the current state of the art have a considerable disadvantage from the point of view of its production, owing to the complex and laborious adjustment process for achieving correct operation of the apparatus which also require very critical adjustment to reach the focal distance of the lens of the CCD device and to achieve the correct illumination of the document itself.
  • the present invention is intended to provide a device for identifying graphic matter which is intended to solve the problems mentioned above, offering many and considerable technical advantages over the devices corresponding to the current state of the art indicated briefly above.
  • the identification device of the present invention is arranged for examining and identifying an image in the document being checked and also the composition of its substrate, so that there is a twofold examination of the authenticity of the document, that is, on the one hand, by checking of the authenticity of the text or graphics patterns and, on the other hand, by checking of the composition of the substrate.
  • the present invention is based fundamentally on one or more devices each formed by a light-sensitive sensor which is focused, by means of a lens, on the area of the document to be identified and examined.
  • This area is illuminated successively by means of several light emitters tuned to different wavelengths so that the sensor will receive the various values of the reflections of the light, and of its refraction through the document when two facing devices, separated by the document to be examined, are used.
  • the information is sent in a suitable form to a microprocessor which is entrusted with its interpretation and evaluation.
  • One of the important contributions of the present invention to the solving of the problems of devices of the prior art relates to the fact that the focusing of the lens is not critical and does not therefore require any additional element for its adjustment, since this is not necessary.
  • This characteristic allows the device to be mounted on a fixed support bearing the group comprising the lens, the sensor, and the light emitters, which makes the device of the present invention very simple and effective.
  • the identification device of the present invention can be produced very cheaply.
  • the basic element of the device that is, a light sensor, is incomparably cheaper than a CCD; by way of example, it may be mentioned that the current commercial price of the light sensor to be used in the present invention is approximately 100 times less than that of a CCD. This also applies to the rest of the components required for the interpretation of the signals generated.
  • the method of the invention is characterized by the emission of light of a controlled wavelength directed towards a region of the document to be checked, the collection of the reflected and refracted light on a light sensor by means of an optical focusing system, and the transmission of the signal generated in the light sensor to an interpretation and validation microprocessor.
  • the invention also provides for a double headed validation unit to be arranged in a manner such that the two heads are disposed one on each side of the document to be checked, permitting simultaneous, combined detection operations in the same region, but on both faces, of the substrate.
  • the various light emitters tuned to different wavelengths can be lit successively in the same manner or differently for the two heads.
  • the present invention also provides for an inclined arrangement of the light emitters of the two heads so that they fall on the same region of the document to be checked.
  • Figure 2 shows an embodiment with a double head.
  • the device of the present invention is intended to examine and possibly to validate a document 5 which will consist of a document of value of any type that has predetermined characteristics both of a graphical and/or textual nature, and with regard to the composition of the body or substrate of the document itself.
  • the device comprises a light sensor 2, or several facing light sensors 2, receiving light beams reflected from and refracted through the substrate 5 and coming from illumination devices 4, 4'... which, as indicated above, are tuned to different wavelengths and operate separately in time, following a predetermined sequence which is fixed or is variable by means of the control microcomputer of the device, not shown.
  • a light ray 6 is shown schematically coming from the light source 4, falling on the region 7 of the document 5 to be checked and being reflected towards the light sensor 2 in the form of a reflected ray 6', then being picked up and directed by an optical system which comprises a lens 3 focused on the document 5.
  • a ray 6" which leaves the lens 3 is picked up by the light sensor 2 which will send the corresponding signal to the microprocessor of the device, not shown.
  • All of the elements of the apparatus are mounted on the same support 1 on which the said elements have fixed positions without requiring any adjustment.
  • the invention also extends to the identification method which is characterized by the emission of light of a controlled wavelength directed towards a region of the document to be checked, the collection of the reflected and refracted light on a light sensor by means of an optical focusing system, and the transmission of the signal generated in the light sensor to an interpretation and validation microprocessor.
  • the embodiment with a double head according to Figure 2 is based on the arrangement, on the two sides of the document 12 to be checked, of respective heads 8 and 17 carrying respective facing light sensors 9 and 18 which receive the light rays reflected from and refracted through the document 12 to be checked, by means of lenses 10 and 19.
  • the illumination devices are indicated 11 and 11' for the head 8 and 16 and 16' for the head 17 although, as will be understood, the precise number of illumination devices is not limited to that of the embodiment shown.
  • the light beams 13 and 13' emitted by the illuminators 11 and 11' are focused on a region 14 of one of the faces of the document 12, and are reflected and refracted, for example, in the form of the rays 13", towards the lens 10, then passing to the sensor 9 which will send the corresponding signal to the control microprocessor of the device.
  • the head 17 will have a variable number of illuminators 16 and 16' as well as a lens 19 for focusing the document to be tested, with the emission of light rays, for example, 15 and 15' which will fall on the region 14' opposite the region 14 of the other face of the document 12, and will be reflected and refracted in the form of rays schematically indicated 15" which, once received in the sensor 18, will bring about the generation of a signal which will be sent to the microprocessor.
  • the emission of light rays for example, 15 and 15' which will fall on the region 14' opposite the region 14 of the other face of the document 12, and will be reflected and refracted in the form of rays schematically indicated 15" which, once received in the sensor 18, will bring about the generation of a signal which will be sent to the microprocessor.
  • the illumination devices of the heads 8 and 17 will preferably be inclined symmetrically to the axis of the head so that their axes are directed towards the region 14 for the head 8 and towards the region 14' with regard to the head 17.
  • the illumination devices are fitted in housings having the correct inclination to achieve the effect indicated.
  • the illumination devices will preferably be fitted in the bodies of the heads 8 and 17 so as not to project from the corresponding front faces 20 and 21, to avoid physical contact with other external elements.
  • the tuning of the various light sources with different wavelengths and the cyclic nature thereof may be achieved independently in the heads 8 and 17 or in synchronized manner for both together.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Image Input (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Character Input (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
EP00500182A 1999-10-25 2000-08-07 Dispositif et procédé pour vérifier des matières imprimées Withdrawn EP1096441A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ES9902341 1999-10-25
ES009902341A ES2159254B1 (es) 1999-10-25 1999-10-25 Dispositivo identificador de grafismos y su procedimiento.
ES009902639A ES2159482B1 (es) 1999-10-25 1999-11-30 Dispositivo identificador de grafismos y su procedimiento.
ES9902639 1999-11-30

Publications (2)

Publication Number Publication Date
EP1096441A2 true EP1096441A2 (fr) 2001-05-02
EP1096441A3 EP1096441A3 (fr) 2001-08-22

Family

ID=26155258

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00500182A Withdrawn EP1096441A3 (fr) 1999-10-25 2000-08-07 Dispositif et procédé pour vérifier des matières imprimées

Country Status (1)

Country Link
EP (1) EP1096441A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1576549A4 (fr) * 2002-12-27 2006-04-05 Nippon Kinsen Kikai Kk Dispositif de detection optique destine a detecter des caracteristiques optiques de papiers de valeur
CN102034296A (zh) * 2011-01-07 2011-04-27 张文峰 一种变色油墨识别装置、点钞机和验钞机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204765A (en) * 1977-12-07 1980-05-27 Ardac, Inc. Apparatus for testing colored securities
US4618257A (en) * 1984-01-06 1986-10-21 Standard Change-Makers, Inc. Color-sensitive currency verifier
JPH04307693A (ja) * 1991-04-04 1992-10-29 Oki Electric Ind Co Ltd 紙葉類判別装置
EP0537431B1 (fr) * 1991-10-14 1997-05-28 Mars, Incorporated Dispositif pour la reconnaissance optique de documents

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1576549A4 (fr) * 2002-12-27 2006-04-05 Nippon Kinsen Kikai Kk Dispositif de detection optique destine a detecter des caracteristiques optiques de papiers de valeur
US7182197B2 (en) 2002-12-27 2007-02-27 Japan Cash Machine Co., Ltd. Optical sensing device for detecting optical features of valuable papers
EP1752933A3 (fr) * 2002-12-27 2007-03-07 Japan Cash Machine Co., Ltd. Dispositif de détection optique pour la détection des caractéristiques optiques de documents de valeur
EP1752932A3 (fr) * 2002-12-27 2007-03-07 Japan Cash Machine Co., Ltd. Dispositif de détection optique pour la détection des caractéristiques optiques de documents de valeur
CN100565592C (zh) * 2002-12-27 2009-12-02 日本金钱机械株式会社 检测有价证券光学特征的光检测装置
US7677379B2 (en) * 2002-12-27 2010-03-16 Japan Cash Machine Co., Ltd. Optical sensing device for detecting optical features of valuable papers
CN101329783B (zh) * 2002-12-27 2010-12-08 日本金钱机械株式会社 检测有价证券光学特征的光检测装置
CN101329784B (zh) * 2002-12-27 2011-02-09 日本金钱机械株式会社 检测有价证券光学特征的光检测装置
US8348042B2 (en) 2002-12-27 2013-01-08 Japan Cash Machine Co., Ltd. Optical sensing device for detecting optical features of valuable papers
CN102034296A (zh) * 2011-01-07 2011-04-27 张文峰 一种变色油墨识别装置、点钞机和验钞机

Also Published As

Publication number Publication date
EP1096441A3 (fr) 2001-08-22

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