Patents Assigned to Gieseck & Devrient GmbH
  • Publication number: 20050161501
    Abstract: The invention relates to a sheet-shaped value document, such as a bank note. An authenticity feature which can be reliably verified by machine or by humans and which can moreover not be deceptively imitated by copying technology is realized by an electro-optical and/or acoustic display device integrated in the value document.
    Type: Application
    Filed: December 19, 2002
    Publication date: July 28, 2005
    Applicant: Giesecke & Devrient GmbH
    Inventors: Thomas Giering, Ralf Hobmeier, Norbert Holl, Alfred Schmidt, Dieter Stein, Christian Voellmer, Bernd Wunderer
  • Publication number: 20050156116
    Abstract: Ultraviolet light is used for checking the authenticity of sheet material, in particular bank notes, whereby the ultraviolet light transmitted, i.e. pervading the sheet material to be checked, is used for checking authenticity.
    Type: Application
    Filed: December 9, 2002
    Publication date: July 21, 2005
    Applicant: Giesecke & Devrient GmbH
    Inventors: Lothar Schuett, Hans-Uwe Richter
  • Patent number: 6918482
    Abstract: An apparatus and method for testing the authenticity of bank notes are proposed. The apparatus includes a light source for emitting light suitable for exciting fluorescent light in a bank note to be checked, and a fluorescence detector for detecting the fluorescent light emitted by the bank note to be checked. According to the invention it is provided that the light source is a light-emitting diode and the light-emitting diode is formed to emit light containing ultraviolet light at least in a partial spectral region. This makes it possible in particular to obtain a compact structure of the apparatus. The method involves exciting and detecting fluorescent light in the bank note to be checked and comparing the detected fluorescent light with a predefined threshold value. According to the invention it is provided that the detected fluorescent light is reduced by the ambient light detected with the light source switched off.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: July 19, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventor: Klaus Thierauf
  • Patent number: 6917040
    Abstract: A method and apparatus for recognizing foreign material (2), in particular adhesive objects, glue or joints, on or in bank notes (1), including detecting the thermal radiation (5) emanating from at least a partial area of the bank note (1): and recognizing foreign material (2) located on the bank note (1) on the basis of the detected thermal radiation (5). The invention is especially suitable for recognizing adhesive objects, in particular adhesive tape and joints, on bank notes since areas of a bank note with adhesive tape or joints differ very distinctly in their thermal properties from other areas of the bank note without adhesive tape.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: July 12, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventors: Klaus Thierauf, Jan Domke, Jürgen Schützmann, Bernd Wunderer, Ulrich Schanda, Hans-Uwe Richter, Lukas Löffler
  • Publication number: 20050139100
    Abstract: A data carrier printed by line intaglio having a halftone image represented by irregular line structures in the manner of an engraving. The line structures are superimposed at least partly by fine structures rendered in positive or negative representation. Methods are provided for generating and processing irregular line structures as digital image data on a computer following individual specifications by an operator. The line structures are transferred to a line intaglio printing plate. The digital image data is used for controlling an engraving apparatus. In the alternative, other printing processes may be involved wherein the digital image data is superimposed at least partly with fine structures rendered in positive or negative representation.
    Type: Application
    Filed: February 25, 2005
    Publication date: June 30, 2005
    Applicant: Giesecke & Devrient GmbH
    Inventors: Peter Franz, Rudiger Schmidt, Stefan Winkler
  • Publication number: 20050125997
    Abstract: A method and apparatus for through-contacting flexible substrates 1, in particular circuit boards, having electrically conductive contact zones 4, 41 present on two opposing surfaces 1a, 1b of the substrate provides that a cut 11 is produced obliquely to the surfaces of the substrate in the area of the contact zones, and the two substrate areas 20, 30 adjoining the oblique cut are moved past each other until they lock behind each other. Moving them past each other is effected by a ram 12, by the action of compressed air 13, by applying a vacuum 14 or by a driving hook 15 fixed to the cutting tool. The two steps of producing the cut and moving the two substrate areas adjoining the cut past each other are effected in a common processing station, preferably in a single operation.
    Type: Application
    Filed: November 14, 2002
    Publication date: June 16, 2005
    Applicant: Giesecke & Devrient GmbH
    Inventors: Juergen Usner, Ando Welling
  • Patent number: 6902115
    Abstract: The invention relates to a portable data carrier having a display device. This data carrier contains a microprocessor and storage devices associated with the microprocessor as well as means for displaying data stored in the storage devices associated with the microprocessor. In addition, the data carrier contains a display controller for controlling the display means and an energy supply unit for supplying at least the display unit and its controller with energy. Such a data carrier is to be improved so as to reduce the energy demand for the display unit. This is obtained by a nonvolatile memory disposed separately from the microprocessor and its storage device, said memory being associated with the controller of the display means and containing the data intended for display.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: June 7, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventors: Hans Graf, Arno Hohmann
  • Publication number: 20050120225
    Abstract: The invention relates to methods for storing and accessing user data (48) and configuration data (62) in a mobile device (10) that is connected to a user module (12). According to a first aspect of the invention, the user data (48) is stored in the mobile device (10) at least partially in encrypted form, and is decrypted, in access operations, using a decrypting function (66) of the user module (12). According to a second aspect of the invention, the configuration data (62) is stored in the user module (12). The configuration data (62) indicates whether, or to what extent, an application program (46) is allowed to be executed by the mobile device (10). Security and protection against unauthorised access to user data (48) and application programs (46) in the mobile device (10) are increased by the invention.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 2, 2005
    Applicant: Giesecke & Devrient GmbH
    Inventors: Jochen Kirsch, Ralf Klaasen, Stefan Eckardt
  • Publication number: 20050104364
    Abstract: The invention relates to a security element for security papers, documents of value, ID cards or the like that is of self-supporting design and has two different security features. The security features are disposed on opposite sides of the security element, at least one the security features being optically variable.
    Type: Application
    Filed: December 17, 2002
    Publication date: May 19, 2005
    Applicant: Giesecke & Devrient GmbH
    Inventors: Mario Keller, Theo Burchard
  • Patent number: 6891180
    Abstract: A camera system (2) for strip-shaped exposure of a bank note (BN) having good optical properties as well as a compact construction has, symmetrically to an optical axis (OA), mirror assemblies (4a, 4b) of elliptical cross section each extending in the direction of the illuminated strip, light sources formed by LED arrays (6a, 6b), an imaging optic in the form of a SELFOC® lens assembly (8), and a photodetector array (12) onto which the illuminated strip of the bank note (BN) is imaged by the SELFOC® lens assembly (8) in a 1:1 ratio.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: May 10, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventors: Norbert Holl, Florian Holzner, Johann Schiessl, Bernd Wunderer
  • Patent number: 6883705
    Abstract: A method and corresponding system for processing bank notes wherein bank notes are provided in a stack and each has a serial number. The bank notes are arranged according to a first sequence of their serial numbers. According to the method and system, the bank notes are removed singly from the stack and processed successively in accordance with the first sequence of their serial numbers. A second sequence of serial numbers of the processed bank notes is determined. To minimize throughput losses in the case of disturbances during processing of a subset of bank notes, the following steps are implemented: depositing the subset of bank notes; continuing the processing of following bank notes in the stack in accordance with the first sequence of their serial numbers; and continuing the determination of the second sequence of serial numbers for the properly processed following bank notes using a hypothetical number of bank notes in the subset.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: April 26, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventor: Manfred Gebhardt
  • Publication number: 20050072326
    Abstract: A method for producing a security document having printed image 1 produced by steel intaglio printing and embossed microstructures 2 of an order of magnitude of less than 100 microns is carried out by one printing plate 8 on which both the steel intaglio structures and the microstructures are present. The parts of the microstructures closest to printing plate surface 9 are located 20 to 100 microns below the printing plate surface so that they are not touched and destroyed by the wiping cylinder. Alternative methods for producing a steel intaglio printing plate with integrated microstructures are provided. The microstructures can be used for embossing a diffractive relief or a blind embossing.
    Type: Application
    Filed: January 8, 2003
    Publication date: April 7, 2005
    Applicant: Giesecke & Devrient GMBH
    Inventors: Eckhard Braun, Reinhard Plaschka
  • Patent number: 6876472
    Abstract: The invention relates to an optical feature, in particular for documents of value, having at least one at least dual-channel hologram for the holographic reconstruction of different images from different directions of gaze, wherein different regions of the hologram are associated with the different channels and the regions of the hologram reconstructing the respective image under incident light have sub-regions which do not take part in the image reconstruction, to a data carrier having at least one optical feature of the invention and to a method for the manufacture of an optical feature, in particular for documents of value.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: April 5, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventors: Irina Menz, Guenther Dausmann
  • Patent number: 6874414
    Abstract: A method and apparatus for screen printing for producing security foils for objects of value such as papers of value consisting of a carrier foil and a cover layer applied thereto, the cover layer having the form of characters or patterns and/or coating-free areas in the form of characters, patterns or the like. A printing raw form is fastened in a printing machine and, before a printing operation, a reversible imaging process is performed in which the screen printing raw form having a certain number of screen openings of predetermined mesh width is provided uniformly and completely with lacquer or ink so that all screen openings are closed, and then selected openings are reopened so as to be ink-permeable for the printing operation.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: April 5, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventor: Wittich Kaule
  • Patent number: 6874415
    Abstract: A mounting cylinder (1) for mounting cylindrical embossing tools for embossing rolls for embossing diffraction gratings or holograms includes a mounting shell (3) for mounting the embossing tool and a fixing device for fixing the mounting shell (3) on a shaft (2) and a tempering device for tempering the mounting shell. According to one variant, the embossing tool is expanded by compressed air in order to be slipped onto the mounting shell or removed therefrom, a compressed air channel system (8) with radial compressed air discharge openings (11) extending axially and/or tangentially within the mounting shell (3). According to another variant, the mounting shell is expanded mechanically in order to fix a embossing tool slipped over the mounting shell and simultaneously fix the mounting shell (3) on the shaft (2).
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: April 5, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventors: Lars Hoffmann, Andreas Pretsch, Andreas Radler
  • Patent number: 6858323
    Abstract: The invention relates to a document of value, such as a paper of value, ID card or the like, having at least one authenticity feature in the form of a luminescent substance. The luminescent substance has particles consisting of a dye-laden molecular sieve whose structure forms an optical resonator. In said resonator at least one dye can be excited to show stimulated emission, the dye being incorporated in the cavities of the molecular sieve or located in or on the internal and external surfaces of the molecular sieve, and the transition to stimulated emission being accompanied by a detectable change in the luminescent properties of the dye.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: February 22, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventors: Thomas Giering, Rainer Hoppe, Thomas Attenberger
  • Patent number: 6845119
    Abstract: A laser illuminating apparatus that illuminates a linear or strip-shaped area (S) of sheet material (B) with high radiant power contains a diode laser (2) whose output is followed by two mutually orthogonally oriented rod lenses (4, 6) whose focal length is small in comparison to their distance. Between the two rod lenses (4, 6) a laser light beam fan (L2) is formed. Said fan is focused by the second rod lens (6) on a narrow linear area (S). Behind said area the laser beams diverge at a large angle (?) so that the power density decreases accordingly rapidly. If the light falls on the retina of an observer's eye, the laser light is not focused pointwise but only linearly, which excludes injury to the eye due to the accordingly low power density.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: January 18, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventors: Wolfgang Deckenbach, Thomas Attenberger
  • Patent number: 6840365
    Abstract: The invention relates to an apparatus and corresponding method for examining objects, in particular documents of value, identification or security documents, having at least one detector device (1, 10-15) for detecting at least one property of an object to be examined (5) and for generating at least one detector signal (S) corresponding to the detected property, the detector device (1, 10-15) and the object (5) being movable relative to each other in a transport direction (T) and the detector device (1, 10-15) extending over at least a partial area of the object (5). For reliable examination of objects, in particular reliable determination of the position and/or nature of features on objects, at the same time as simple structure and simple evaluation, it is provided that the detector device (1, 10-15) has at least two extensions (A, B) of different magnitude in the transport direction (T).
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: January 11, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventor: Friedemann Löffler
  • Patent number: 6839963
    Abstract: A circuit unit having a circuit unit comprising an insulating substrate (1) on which a conductive, flat coil (3) is located. The coil (3) can consist of a plurality of coil layers (9, 17) separated by insulating layers (11). To inter-connect the individual coil layer section (9, 17) into a coil, at least one opening (13) is provided in each of the insulating layers (11). The connection between the first coil ends (15, 19) of the coil (3) and an integrated circuit (7) or a module (23) containing the integrated circuit (7) can be formed solely by the coil ends (15, 19) and the connection points (27) of the integrated circuit (7) or the contacts (25) of the module (23) touching. The individual turns of the coil (3) can be disposed and dimensioned so as to permit embossing of the circuit unit without restriction within an area (37, 38) conforming with the standard.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: January 11, 2005
    Assignee: Giesecke & Devrient GmbH
    Inventors: Yahya Haghiri-Tehrani, Ando Welling
  • Publication number: 20040255804
    Abstract: A mounting cylinder (1) for mounting cylindrical embossing tools for embossing rolls for embossing diffraction gratings or holograms includes a mounting shell (3) for mounting the embossing tool and a fixing device for fixing the mounting shell (3) on a shaft (2) and a tempering device for tempering the mounting shell. According to one variant, the embossing tool is expanded by compressed air in order to be slipped onto the mounting shell or removed therefrom, a compressed air channel system (8) with radial compressed air discharge openings (11) extending axially and/or tangentially within the mounting shell (3). According to another variant, the mounting shell is expanded mechanically in order to fix a embossing tool slipped over the mounting shell and simultaneously fix the mounting shell (3) on the shaft (2).
    Type: Application
    Filed: January 22, 2004
    Publication date: December 23, 2004
    Applicant: Giesecke & Devrient GmbH
    Inventors: Lars Hoffmann, Andreas Pretsch, Andreas Radler