WO2001067385A1 - Support de donnees et son procede de production - Google Patents

Support de donnees et son procede de production Download PDF

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Publication number
WO2001067385A1
WO2001067385A1 PCT/DE2001/000733 DE0100733W WO0167385A1 WO 2001067385 A1 WO2001067385 A1 WO 2001067385A1 DE 0100733 W DE0100733 W DE 0100733W WO 0167385 A1 WO0167385 A1 WO 0167385A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
data
card
cover layer
laser
Prior art date
Application number
PCT/DE2001/000733
Other languages
German (de)
English (en)
Inventor
Dieter Klose
Original Assignee
Orga Kartensysteme Gmbh
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
Application filed by Orga Kartensysteme Gmbh filed Critical Orga Kartensysteme Gmbh
Priority to AU2001239198A priority Critical patent/AU2001239198A1/en
Publication of WO2001067385A1 publication Critical patent/WO2001067385A1/fr

Links

Classifications

    • 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
    • G06K19/06009—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 optically detectable marking
    • G06K19/06046—Constructional details
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/126—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by photographic or thermographic registration

Definitions

  • the invention relates to a data carrier for visually readable data, the visually readable data being hidden as secret data under an opaque cover layer.
  • the cover layer is designed in such a way that it can only be removed by destroying it and / or irreversibly changing it, in order to read the data underneath.
  • the cover layer can also be such that it causes an irreversible, visible change in the card-like carrier when removed. Unauthorized manipulations can thus be recognized by the authorized user.
  • Such data carriers are e.g. used to communicate secret numbers to mobile customers, the secret number used to unlock a prepaid credit, from which the telephone charges of the mobile customer are then debited.
  • Such data carriers are also known as voucher cards.
  • the mobile radio customer buys e.g. for DM 50, ⁇ at an authorized issuing office a voucher card on which a secret number is concealed.
  • the network operator or service provider In order to be able to dispose of the credit acquired with the purchase of the voucher card, the network operator or service provider must be informed of the number on the voucher card. There is a security risk here, since anyone who knows the number can have this credit assigned to his mobile phone number. For this reason, the number is communicated face down.
  • the authorized user who recognizes tampering with the cover, at least has the possibility to block further access to the credit.
  • a data carrier of this type is known for example from DE 197 33 876 Cl.
  • all known data carriers of the Alt described above there is still a security gap, which consists in the secret data being applied to the data carrier before the cover is applied.
  • This group of people could reach the secret numbers without any obvious manipulation of the data carrier.
  • the systems on which the secret numbers are affixed to the data carriers and subsequently covered with a security regulation and are designed in such a way that an insight into the uncovered secret numbers is impossible.
  • security measures of this kind are complex and hinder the operation and maintenance of the systems
  • the object of the invention is to provide a data carrier of the type mentioned at the outset, in which the security gap described above is closed
  • the invention then consists in using a cover layer that is opaque in the visible wavelength range, but is at least partially tianspient for laser radiation with a wavelength outside the visible range, the cover layer being applied to the data carrier before the visually readable data is applied, and only then are the visually readable data applied to the data sheet through the cover layer by means of laser radiation.
  • the security gap covered above is closed, since the secret data are also not visible to machine operators at any time. Because the secret numbers are generated via a random number generator and m electromschei form are automatically fed to the control of the Lasei marking system, access to this data is almost impossible
  • Another advantage of the method according to the invention is that the card-like carriers with the covering layer thereon are prepared in advance before the actual "arming", ie the application of the hidden secret number, and can be called up if necessary
  • the covered laser marking is provided.
  • Figure 2 shows a section through the data carrier with lasered under the cover layer
  • FIG. 3 shows a plan view of the data carrier with an intact cover layer
  • FIG. 4 shows a plan view of a data carrier with the cover layer partially removed
  • FIG. 5 shows a section through a data carrier, consisting of a carrier layer on which a laser-sensitive layer is arranged,
  • FIG. 6 shows a section through a data carrier, consisting of a carrier layer on which a transparent layer is arranged
  • FIG. 8 the transmission spectrum of the cover layer
  • Figure 9 is a view as in Figure 1 but with a partially transparent mirror in
  • FIG. 10 shows a section through a data carrier which is laser-inscribed via a mask.
  • Figure 1 shows a section through the data carrier (1) according to the invention during laser inscription.
  • the data carrier (1) consists of a card-like carrier (2) on which a cover layer (3) which is opaque in the visible wavelength range is arranged.
  • the laser inscription takes place through the cover layer (3) on the damper carrier (2).
  • a cover layer (3) is chosen that is at least partially transparent to the wavelength of the laser beam (LS).
  • FIG. 8 shows the transmission spectrum of a cover layer (3) which is opaque in the visible spectral range and is transparent to a laser radiation of 1064 n.
  • a material must then be selected for the card-like carrier (2) in which a change in color and / or blackening can be achieved by exposure to laser radiation of the special wavelength.
  • the cover layer (3) is, for example, POM (polyoxymethylene), which is colored red to be opaque.
  • POM polyoxymethylene
  • this material is almost completely transparent to laser radiation with a wavelength of 1064 nm.
  • the laser-sensitive (1064nm) material for the card-like carrier (2) comes e.g. pigmented ABS (acrylic butadiene styrene) into consideration, whereby the pigment sold by Finna Hoechst under the brand name Irodin can be used.
  • FIG. 2 shows a section through the data carrier (1) with the data (4A) lasered under the cover layer (3), which are located in the surface area of the card-like carrier (2).
  • Figure 3 shows a plan view of the data carrier (1) with an intact cover layer (3).
  • the cover layer (3) is located on a data area (4) provided for the application of the data (4A).
  • Figure 4 shows a plan view of the data carrier (1) with the cover layer (3) partially removed, so that part of the holder number (4A) is exposed.
  • Cover layers (3) which can be removed only by destroying the same and / or by irreversibly changing the same and / or irreversibly changing the card-like carrier (2) are known to the person skilled in the art.
  • the cover layer (3) can be designed as a film that can be scratched off and / or rubbed off, which is glued or laminated onto the card-like carrier (2).
  • the cover layer (3) can also be used as be scratch-off and / or scratch-off lacquer, which is printed on the card-like carrier (2).
  • FIG. 5 shows a section through a data carrier (1), the card-like carrier of which consists of a carrier layer (2A) on which the actually laser-sensitive layer (2B) is arranged.
  • the laser-sensitive layer (2B) is arranged directly under the opaque cover layer (3).
  • FIG. 6 shows a section through a data carrier (1), the card-like carrier of which consists of a laser-sensitive carrier layer (2A) on which a transparent layer (2C) is arranged.
  • the laser inscription then takes place through the cover layer (3) and the transparent layer (2C) onto the laser-sensitive carrier layer (2A).
  • the transparent layer (2C) on the laser-sensitive carrier layer (2A) serves e.g. to protect a screen or offset print (4B) on the carrier layer (2A).
  • FIG. 7 shows a section through a data carrier (1), the cover layer (3) of which has an adhesive layer (3A) for fixing on the card-like carrier (2).
  • the laser inscription can be done in a raster and or vector method, the laser beam being deflected accordingly for the inscription by means of a deflecting mirror.
  • the laser inscription can also be carried out using the so-called mask process, a mask (7) corresponding to the data to be applied being arranged in the laser beam path (cf. FIG. 10).
  • the mask method has the advantage that the entire data (secret number) in one step, e.g. can be written with a laser pulse. Since the data vary from data carrier to data carrier, an electronically quickly adjustable mask is used. For this, e.g. a so-called spatial light modulator as used in projectors.
  • a partially transparent mirror (5) in the laser beam path, with which a small part of the laser radiation is coupled out for control purposes.
  • the laser radiation decoupled for control purposes can, for example, be collected by a fluorescent screen and converted into visible light, which is then recorded by a CCD camera for control purposes. In this way it can be checked whether the laser is actually writing the target data. After the writing process and the comparison, the pictures taken by the camera are immediately deleted.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

L"invention concerne un procédé de production d"un support de données, selon lequel des données confidentielles sont gravées sur un support de type carte, en étant cachées sous une couche de recouvrement opaque, au moyen d"un rayon laser traversant cette dernière.
PCT/DE2001/000733 2000-03-04 2001-02-27 Support de donnees et son procede de production WO2001067385A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001239198A AU2001239198A1 (en) 2000-03-04 2001-02-27 Data support and method for producing the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10010785.0 2000-03-04
DE2000110785 DE10010785A1 (de) 2000-03-04 2000-03-04 Datenträger und Verfahren zu seiner Herstellung

Publications (1)

Publication Number Publication Date
WO2001067385A1 true WO2001067385A1 (fr) 2001-09-13

Family

ID=7633638

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/000733 WO2001067385A1 (fr) 2000-03-04 2001-02-27 Support de donnees et son procede de production

Country Status (3)

Country Link
AU (1) AU2001239198A1 (fr)
DE (1) DE10010785A1 (fr)
WO (1) WO2001067385A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10147037A1 (de) * 2001-09-25 2003-04-17 Orga Kartensysteme Gmbh Verfahren und Vorrichtung zur Laserbeschriftung von Datenträgern, insbesondere Kartenkörper
DE10150136A1 (de) * 2001-10-11 2003-04-17 Deutsche Telekom Ag Verfahren und Sicherheitsetikett zur Aufbringung geheimzuhaltender Informationen auf Trägern
DE10219705A1 (de) * 2002-05-02 2003-11-13 Orga Kartensysteme Gmbh Spritzgusswerkzeug zur Herstellung einer Chipkarte sowie ein Verfahren zur Herstellung einer Chipkarte

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639740A (en) * 1982-09-09 1987-01-27 Laser Applications Limited Laser marking enhancement system using reflection from the mask
US4766026A (en) * 1985-10-15 1988-08-23 Gao Gesellschaft Fur Automation Und Organisation Mbh Identification card with a visible authenticity feature and a method of manufacturing said card
DE4009512C1 (fr) * 1990-03-24 1991-06-20 Kg Catts Gesellschaft Fuer Erkennungs- & Sicherheitstechnologie Mbh & Co, 2200 Elmshorn, De
US5801857A (en) * 1989-09-28 1998-09-01 Gao Gesellschaft Fur Automation Und Organisation Mbh Data carrier having an optically variable element and methods for producing it
DE19733876A1 (de) * 1997-08-05 1999-02-18 Winter Wertdruck Gmbh Datenträger sowie Verwendung desselben und Verfahren zu dessen Herstellung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151407C1 (de) * 1981-12-24 1983-10-13 GAO Gesellschaft für Automation und Organisation mbH, 8000 München Ausweiskarte und Verfahren zu deren Herstellung
DE4033300C2 (de) * 1990-10-19 1994-06-23 Gao Ges Automation Org Mehrschichtiger, kartenförmiger Datenträger und Verfahren zur Herstellung desselben
DE4243987C2 (de) * 1992-12-23 2003-10-09 Gao Ges Automation Org Ausweiskarten mit visuell sichtbarem Echtheitsmerkmal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4639740A (en) * 1982-09-09 1987-01-27 Laser Applications Limited Laser marking enhancement system using reflection from the mask
US4766026A (en) * 1985-10-15 1988-08-23 Gao Gesellschaft Fur Automation Und Organisation Mbh Identification card with a visible authenticity feature and a method of manufacturing said card
US5801857A (en) * 1989-09-28 1998-09-01 Gao Gesellschaft Fur Automation Und Organisation Mbh Data carrier having an optically variable element and methods for producing it
DE4009512C1 (fr) * 1990-03-24 1991-06-20 Kg Catts Gesellschaft Fuer Erkennungs- & Sicherheitstechnologie Mbh & Co, 2200 Elmshorn, De
DE19733876A1 (de) * 1997-08-05 1999-02-18 Winter Wertdruck Gmbh Datenträger sowie Verwendung desselben und Verfahren zu dessen Herstellung
DE19733876C2 (de) 1997-08-05 1999-08-12 Winter Wertdruck Gmbh Datenträger und Verfahren zu dessen Herstellung

Also Published As

Publication number Publication date
AU2001239198A1 (en) 2001-09-17
DE10010785A1 (de) 2001-09-06

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