Infineon Technologies Ag

Infineon Technologies Austria Ag

Josef Haid

Thomas Leutgeb

Walter Kargl

Bernd Zimek

Albert Missoni

Dietmar Scheiblhofer

Stefan Rueping

Armin Krieg

Thomas Baglin

Thomas Kuenemund

Norbert Druml

Markus Dielacher

Walther Pachler

Uwe Weder

Michael Mark

Michael Smola

Robert Lobnik

Josef Riegebauer

Thomas Jean Ludovic Baglin

Matthias Emsenhuber

Christian Steger

Korbinian Engl

Robert Hofer

Friedrich Skofitsch

Markus Unterlercher

Johannes Grinschgl

A capacitive coupling device for capacitive coupling to a capacitive coupling means which is arrangeable on the capacitive coupling device. The capacitive coupling device can have a first coupling surface, which has at least three coupling surface segments which are arranged separated from one another, a voltage supply configured to provide a first supply voltage and a second supply voltage which is different therefrom, and a control circuit, which is arranged to connect each of the coupling surface segments selectively to the first supply voltage or to the second supply voltage in an electrically conductive manner or to disconnect it from the control circuit in such a way that the coupling surface segments connected to the first supply voltage form, with a first coupling surface area of the capacitive coupling means, a first capacitor, and the coupling surface segments connected to the second supply voltage form, with a second coupling surface area of the capacitive coupling means, a second capacitor.

Capacitive coupling device, capacitive coupling system and method for operating a capacitive coupling device

A device includes a root of trust and a controller to perform a device function of the device using the root of trust. The root of trust is designed to control and/or observe the controller at least partially for the performance of the device function.

Device and system with a root of trust

An access control device includes a time of flight circuit configured to determine a distance information related to a distance between the access control device and a peripheral device. The access control device further includes a control module configured to control a transmission of a modulated light transmit signal by the time of flight circuit to the peripheral device. The modulated light transmit signal includes the distance information determined by the time of flight circuit of the access control device.

Access control devices and a transceiver device

In various embodiments, a circuit arrangement is provided, including a first antenna tuned to a first frequency range, a second antenna tuned to a second frequency range being different from the first frequency range, a controller coupled to the first antenna and the second antenna, wherein the controller is configured to receive its operational power via at least one of the first antenna and the second antenna, and a deactivating structure configured to deactivate the communication of the controller via the second antenna upon reception of electromagnetic waves with the first frequency range via the first antenna.

Electronic document with two antennas

An apparatus for accessing an encrypted memory portion of a memory is provided. The apparatus includes a plurality of signature generators, wherein each signature generator of the plurality of signature generators is configured to generate a signature of a plurality of signatures depending on an instruction of a plurality of instructions, wherein each of the plurality of instructions is a processor instruction for controlling a processor. Moreover, the apparatus includes a key modifier for generating a processed key depending on a standard key and on the plurality of signatures. Furthermore, the apparatus includes a controller for accessing the encrypted memory portion of the memory, wherein the memory access controller is configured to employ the processed key to access the encrypted memory portion of the memory.

Apparatus and method for accessing an encrypted memory portion

A contactless communication device including an energy interface configured to activate the contactless communication device or a contactless communication partner based on a first carrier signal; and a contactless high speed data interface configured to enable data communication between the contactless communication device and the contactless communication partner based on a second carrier signal having a frequency greater than a high frequency (HF).

Contactless communication via a plurality of interfaces

A communication system including a reader application device having a reader application, and a reader configured to operate under control of the reader application to allow data to be transmitted between the reader application device and a user device via the reader.

Reader application device

A power supply input selection circuit for selecting one of a plurality of power supply inputs to supply power to a driven circuit. The power supply input selection circuit includes a power supply input switching circuit configured to provide operating power to the driven circuit by routing a selected one of the power supply inputs to the driven circuit as a function of power supply selection information; and a logic circuit configured to change the power supply selection information if a default power mode does not match a desired power mode, the logic circuit being further configured to reset the power supply input selection circuit after changing the power supply selection information, the power supply selection information being maintained during the reset, in which the power supply input switching circuit selects a desired one of the power supply inputs after the logic circuit resets the power supply input selection circuit.

Power supply input selection circuit

The invention relates to a voltage converter comprising a rectification unit and a voltage regulation unit, wherein the input side of the voltage converter can have an AC voltage applied to it, the output side of the voltage converter can have a rectified voltage taken from it, and the voltage regulation unit regulates the power in the voltage converter.

Voltage converter, usage of a voltage converter, method for converting an AC voltage into a DC voltage, and contactless chip card

A chip module including a sensor/actuator, an input/output interface, a data processing circuit connected between the input/output interface and the sensor/actuator such that sensor/actuator data may be communicated to/from outside the chip module via the input/output interface, and a manipulation detector assembly configured to output an alarm signal responsive to attacks affecting the sensor/actuator data.

Secure sensor/actuator systems

An RFID transponder having an adjustable response field strength including a determination circuit formed to determine a quantity which is derivable from a field strength of an electromagnetic field prevailing at the location of the RFID transponder, a comparator formed to compare the determined quantity derived from the field strength with a threshold value, wherein the threshold value is based on the adjustable response field strength, which is higher than the minimum field strength required for the operation of the RFID transponder, and a deactivator formed to deactivate a functionality of the RFID transponder if the derived quantity falls below the threshold value.

Transponder and method for operating a transponder

A frequency regulator for varying a clock frequency of a power-supplied consumer operated in a clocked manner, wherein the frequency regulator is implemented to perform an overall variation of the clock frequency from an actual frequency to a set frequency, such that the overall variation is obtained by a plurality of clock changes, each with a different amount of change, wherein each of the respective amounts of change depends on a power change caused by the associated clock frequency change.

Clock frequency variation of a clocked current consumer

An apparatus and method of accessing a memory by determining available power, and accessing a number of bits of the memory in parallel, wherein the number of bits accessed in parallel is based at least in part on the available power.

Power dependent memory access

A supply power can be fed in at a circuit arrangement for supplying power to, and clocking, clocked loads. The circuit arrangement provides a clock signal at a frequency and a supply voltage, the frequency and/or the supply voltage being able to be controlled by the circuit arrangement in such a manner that a power tapped off at the output and the supply power fed in are in a predefined relationship.

Supplying power to, and clocking, clocked loads

A method for changing a succession of instruction words including providing a set of machine words, each machine word being associated with an address from a set of addresses, providing a succession of instruction words having address information, the succession of instruction words prescribing a sequence of machine words which are intended to be processed by an arithmetic and logic unit which is coupled to a buffer store, altering the association between at least a portion of the set of machine words and at least a portion of the set of addresses, changing the address information in the succession of instruction words based on the alteration of the association, storing the changed succession of instruction words in a memory, and storing the set of machine words in the memory, so that it is possible to access the machine words using the associated addresses.

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Graz, Austria

Josef Haid