Giesecke & Devrient Gmbh

Giesecke+devrient Mobile Security Gmbh

Technische Universitat Munchen

Thales Management & Services Deutschland Gmbh

Giesecke+devrient Currency Technology Gmbh

Fos4x Gmbh

Vc Viii Polytech Holding Aps

Vodafone D2 Gmbh

Lars Hoffmann

Manfred Heim

Marius Dichtl

Mario Keller

Mathias Müller

Kai Schicker

Ralf Liebler

Thorbjörn Buck

Rolf Wojtech

Michael Rahm

Winfried Hoffmuller

Theo Burchard

Jürgen Pulkus

Kassen Oldewurtel

Rainer Klemm

Manfred Dotzler

Wittich Kaule

Thomas Giering

Klaus Finkenzeller

Bernd Wunderer

Dieter Stein

Norbert Holl

Christian Schmitz

Sven Bauer

Günter Endres

Markus Dichtl

Hermann Drexler

Florian Muschaweckh

Theodor Burchard

Stefan Bichlmeier

Friedrich Kretschmar

Walter Schneider

Ralf Hobmeier

Alexander Steinkogler

Patrick Renner

Thomas Hildebrandt

Martin Seysen

Winfried Hoffmüller

Thorsten Pillo

Christian Voellmer

Harald Reiner

Andreas Pretsch

Juergen Schuetzmann

Markus Krombholz

Jürgen Karl Stahl

Jens Rüdinger

Eckart Schroeder-Bergen

Fabiola Bellersheim

Andreas Radler

Gabriel Goller

Mathias Muller

Thorbjorn Buck

Philipp Gerster

Mathias MÜLLER

Martin Loessl Zahedi

A method of mounting a rail monitoring member/element at a mounting location of a rail for rail traffic, in particular on a railway track, is disclosed. The rail monitoring member includes a strain sensor member with a carrier on which a strain gauge, being an optical fiber with a fiber Bragg grating, is fixed. The method steps include: determination of the temperature of the rail and/or rail monitoring member at the mounting location; checking whether the determined temperature is within a predefined temperature interval; providing heating or cooling application to the rail and/or rail monitoring member at the mounting location, if the determined temperature is not within the predefined temperature interval; positioning and adhesively fixing of the carrier of the rail monitoring member at the mounting location. The method can be carried out easily and allows reliable and accurate monitoring of the rail using a strain sensor member.

Method for mounting a rail monitoring element

A method for setting up a subscriber identity module for agreeing one or several exchange keys, between a subscriber identity module and a provisioning server includes generating one or several exchange keys from keys of the provisioning server and of the subscriber identity module on a production server and are transmitted into the subscriber identity module and stored, so that the subscriber identity module is put particularly into a state as though it had generated the exchange keys itself. In a method for agreeing one or several exchange keys, between a subscriber identity module and a provisioning server, the subscriber identity module sends its public key to the provisioning server, which subsequently generates the exchange keys.

Agreement of exchange keys on the basis of two static asymmetric key pairs

A method for the transition is provided from a Boolean masking of a value to be kept secret to an additive masking of the value to be kept secret. The value to be kept secret is present in the Boolean masking as a representation masked with a first Boolean mask and a second Boolean mask. A first additive mask and a second additive mask are determined for the value to be kept secret. A first masking transition is executed in which the first Boolean mask is converted into the first additive mask. A second masking transition is executed in which the obfuscation value is converted into an additive correction value, and a third masking transition is executed in which the second Boolean mask is converted into the second additive mask.

Transition from a Boolean masking to an arithmetic masking

A method for assembling a strain gauge arrangement for an axle counter, includes: a strain sensor element; a carrier, to which the strain sensor element is fastened; and a railroad track structure to be monitored. When the carrier is fastened to the structure at least a part of it is kept in an elastically deformed state. The carrier is embodied with a first carrier piece opposing a second carrier piece. The strain sensor element is fastened to the first carrier piece with a first fixing point, to the second carrier piece with a second fixing point, and to neither the first nor the second carrier piece with a central section between the fixing points. At least the part of the carrier is elastically braced by means of a bracing element for when adhesively bonding to the structure to be monitored. Thereafter the bracing element is removed.

Strain gauge assembly, particularly for an axle counter

A strain gauge arrangement for an axle counter has a strain sensor element, a carrier and a railway line structure that is to be monitored. At least one part of the carrier is maintained in an elastically deformed state by the structure when the carrier is secured to the structure. The carrier is formed from a first carrier piece and a second carrier piece, which lie opposite one another at a distance from one another. The strain sensor element has one first fixing point fixed to the first carrier piece, and one second fixing point fixed to the second carrier piece, and a middle section mounted between the fixing points which are not fixed to the first or second carrier piece. The strain gauge arrangement is simple to handle and a drop can be reliably detected and a strain state of the strain sensor element can be predetermined more easily.

A method for the initial operation and personalization of a subscriber identity module in a mobile radio network, prior to its first initial operation in the mobile radio network, the subscriber identity module does not yet include an individual secret key and is being equipped with an individual, unique parameter data set only after its first initial operation in the mobile radio network. A mobile radio server takes on, from the subscriber identity module, an authentication message formed with a preliminary parameter data set comprising an individual, unique subscriber identification and a non-individual, non-unique preliminary secret key, and sends, after a verification, in response thereto an individual, unique final secret key to the subscriber identity module for programming into the subscriber identity module. The preliminary parameter data set is introduced into the subscriber identity module selectively during production or by an initializing step based on an initial parameter data set.

Method for starting up and personalizing a subscriber identity module

Into a plastic card () of polycarbonate layers () there is laminated a security thread () by applying pressure and temperature, the security thread itself having a carrier foil () of polycarbonate and a coating () that is borne by the carrier foil and conveys holographic information. The connection of the polycarbonate carrier foil () of the security thread with the polycarbonate layer () of the data carrier adjoining said carrier foil takes place without using an adhesive or primer.

Security thread for data carriers, data carriers, and production of said data carriers

The present invention relates to a method for compensation, for example, for temperature compensation of a fiber optic measurement system designed for determining a mechanical quantity. First and second fiber Bragg gratings have a respective Bragg wavelength, wherein the fiber Bragg gratings are irradiated with primary light. After applying a mechanical quantity to the first and second fiber Bragg gratings, the Bragg wavelengths of the fiber Bragg gratings are changed by the mechanical quantity. Filtering of the first and second secondary light, said first and second secondary light is effected from the primary light and modified by the Bragg wavelength of the fiber Bragg grating depending on the mechanical quantity by use of an optical filter device follows, in such a way that the Bragg wavelength of the first fiber Bragg grating lies in the region of the rising filter gradient of the optical filter device and the Bragg wavelength of the second fiber Bragg grating lies in the region of the falling filter gradient of the optical filter device. After determining the intensities of the filtered first and second secondary light, they are compared, whereupon the mechanical quantity is determined from the intensity comparison.

Method for compensation of fiber optic measurement systems and fiber optic measurement system

A method for the adjustment of an optical measurement system comprises providing an optical measurement system, which comprises, as optical elements, a beam splitter; a first photo sensor, exposed by a first partial beam from the beam splitter; an optical filter; a second photo sensor, arranged downstream of the optical filter, exposed by a second partial beam from the beam splitter. Additionally, the angularity and relative position between multiple optical elements is designed to be adjustable. The method further comprises providing a device for generating a difference signal from the two photo sensors; providing a light source with periodically varying polarization; irradiating the light in the beam splitter, so that the two respective photo sensors are exposed by a partial beam; generating a difference signal of the output signals of the photo sensors; varying the position and/or angularity of at least one optical element, and observing the difference signal, determine the combination of angularity/position of the elements where a minimum difference signal is achieved, and configuring the angularity of the optical elements to the determined values. Further, a corresponding system is proposed.

Optical measurement system with polarization compensation, and corresponding method

The present invention provides a method for installing at least one sensor device within a rotor blade of a wind turbine. A first substantially planar light beam is emitted in the interior of the rotor blade. Finally, at least one second substantially planar light beam is emitted in the interior of the rotor blade, wherein the plane of the first planar light beam is oriented at a predetermined angle to the plane of the second planar light beam. Further, the planes of the first and second planar light beams are aligned on the blade flange of the rotor blade. At least one sensor device is subsequently aligned in reference to the planar light beams.

Method for installation of sensors in rotor blades and installation apparatus

The present invention relates to a method for producing, for the depiction of a specified motif, a micro-optical depiction arrangement that exhibits a colored motif grid, composed of a plurality of micromotif elements, and a focusing element grid, composed of a plurality of microfocusing elements that reconstructs the specified motif when the micromotif elements are viewed.

Method for producing a micro-optical display arrangement

The invention relates to a method for encoding digital data, in particular of data processed in a microprocessor unit. In the method according to the invention for a respective data word (A, B, C) of a series of data words to be encoded subsequently a parity code (P(A), P(B), P(C)) is computed on the basis of the data of the respective data word (A, B, C). Further the respective data word (A, B, C) is altered with the aid of the data word (A, B, C) preceding it in the series, wherein the altered data word (Aa, Ba, Ca) and the parity code (P(A), P(B), P(C)) represent the encoded data word (Ac, Bc, Cc) and the encoded data word (Ac, Bc, Cc) can be decoded with the aid of the data word (A, B, C) preceding it in the series.

Method for coding and decoding digital data, particularly data processed in a microprocessor unit

The present invention relates to a method for producing a micropattern on a substrate (), in which

Method for producing a microstructure

A security element for securing valuable articles comprises an optically variable layer () that conveys different color impressions at different viewing angles, and a color-constant layer (). The optically variable layer () and the color-constant layer () are stacked in a covering region (), while at most one of the optically variable layer () and the color-constant layer () is present outside () the covering region. The color impression of the stacked layers () in the covering region () and the color impression of the one layer () outside () the covering region are matched with each other when viewed at a predetermined viewing angle. Further, the color-constant layer comprises an ink layer () and a metal layer arranged below the ink layer ().

Security element and method for manufacturing the same

The invention relates to a security element for security papers, bank notes, ID cards or the like, having at least one plastic layer on which at least two metal layers of different color are so disposed side by side and on the same side of the plastic layer that the different colors are visually checkable.

Security element and method for producing the same

Growing community of inventors

Freising, Germany

Lars Hoffmann