Giesecke & Devrient Gmbh

Giesecke+devrient Mobile Security Gmbh

Hans Graf

Arno Hohmann

Klaus Finkenzeller

Thomas Tarantino

Stefan Kluge

Christoph Schiller

Manuela Schröpf

Werner Strobl

Michael Stegmüller

Alfred Rossmadl

Eike Thomas Bode

The invention creates a data carrier, in particular chip card, in particular smart card, having a device for generating one-time passwords and having a display for displaying generated one-time passwords. Preferably the data carrier is a Eurocheque card or credit card with the integrated function of an electronic purse (cash card function) and the generated one-time password is a transaction number (TAN) for acknowledging a secure electronic payment transaction.

Data support with tan-generator and display

Chip card processor P and display controller C of chip cardwith a display are realized in single chipand the chipis disposed on same substrateon which displayis built up. This eliminates the need for connecting leads and contactings between the display controller and the processor chip. Displayand chipform one mechanical unit and it is unnecessary to install processor chip P. Preferably, display substrateextends with processor chip P, or at least with conductive paths leading to processor chip P, under contact padof chip card

Chip card with a display

A module for insertion into a data carrier body to form a data carrier, the module having a contact interface with a contact area, at least one integrated circuit and a display device with a display area which are interconnected. Method for producing the module, the data carrier body and the data carrier. The contact interface and the display device of the module are disposable in the data carrier body such that the contact area of the contact interface and the display area of the display device point in opposite directions. The data carrier body thus possesses a through opening into which the module is insertable as described.

Display module and data storage medium with an inserted display module

The invention relates to an apparatus as well as a method for reliably determining the deliberate use of a contactless data carrier. Beside an antenna-based data transmission channel in dependence on the data to be transmitted additionally an optical data transmission channel between reading device and data carrier can be employed.

Contactless data carrier

A data carrier used for an electronic purse including a display arranged to indicate a credit balance present in the electronic purse, and a battery in combination with a device for detecting the usability or probability of use of the display. The device is configured to determine the opereability and brightness of the display. The device is arranged to selectively deactivate the display upon an indication of a predetermined criteria.

Data carrier with a battery and display

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.

Growing community of inventors

Rosenheim, Germany

Hans Graf