Infineon Technologies Ag

Thomas Leutgeb

Walter Kargl

Josef Haid

Josef Riegebauer

Albert Missoni

Bernd Zimek

Dietmar Scheiblhofer

Helmut Koroschetz

Richard Sbuell

Thomas Baglin

Thomas Kuenemund

Franz Michael Darrer

Norbert Druml

Markus Dielacher

Gerald Holweg

Stefan Rueping

Gerhard Nebel

Thomas Jean Ludovic Baglin

Armin Krieg

Dirk Rabe

Robert Hofer

Friedrich Skofitsch

Markus Unterlercher

Edin Ibrahimagic

A sensor arrangement comprises a communication device and a sensor element. The sensor element is configured to record a property and provide a sensor signal that represents the property. The sensor arrangement comprises a security element configured to provide a secret. The sensor arrangement is configured to link the sensor signal to the secret to obtain a linked sensor signal, transmit the linked sensor signal to a communication partner using the communication device, obtain a test signal from the communication partner using the communication device, and perform a check to determine whether the test signal comprises the secret.

Secure sensor arrangement

A near-field communication device having one or more processors configured to control the near-field communication device, an energy supplier having an energy supply circuit and a supply antenna configured to provide energy to a second antenna circuit arranged externally to the near-field communication device, wherein the supply antenna of the energy supplier is galvanically coupled to the energy supply circuit, and a first antenna circuit having a first communication circuit and a first antenna, wherein the first communication circuit is configured for communication with a second communication circuit of the second antenna circuit by means of an inductive coupling by means of the first antenna of the first antenna circuit.

Near-field communication device, electronic device for providing a substance, method for operating a near-field communication device and method for providing a substance

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 near field communication circuit includes an antenna, a circuit logic unit coupled to the antenna, an energy storage coupled to the antenna, and a shunt control circuit, coupled to the antenna, for controlling a first operating voltage provided for the circuit logic unit by the antenna. The circuit logic unit is set up such that in a first mode of operation the circuit logic unit is operated by the first operating voltage provided by the antenna. The circuit logic unit is set up to control the shunt control circuit such that in the first mode of operation at least some of the electric power provided by the antenna is supplied to the energy storage for the purpose of charging same with the electric power.

Near field communication circuit

In various embodiments, an antenna arrangement is provided. The antenna arrangement includes a first antenna and a second antenna. The first antenna and the second antenna are arranged substantially in the same plane. The first antenna and the second antenna are arranged with respect to one another in such a manner that an intermediate area is defined between the first antenna and the second antenna. The antenna arrangement further includes a controller which is configured to control the first antenna and the second antenna in such a manner that a magnetic field produced in the intermediate area is greater, in terms of magnitude, than the magnetic field generated by the first antenna in the intermediate area and the magnetic field generated by the second antenna in the intermediate area.

Antenna arrangement and method for operating an antenna arrangement

A system including a first device having a push-pull circuit configured to transmit a synchronization symbol; and a second device coupled to the first device by a single wire interface, and configured to, in response to receiving the synchronization symbol, transmit a data symbol to the first device while the push-pull circuit is in a tristate phase.

Single wire interface

A method for controlling the flow of data in a near field communication appliance having a plurality of secure elements is provided. The method includes receiving a first communication, sent by an external appliance, which is intended for an application located in one of a plurality of secure elements of the near field communication appliance. The method further includes determining which of the secure elements contains the application, and taking measures in order to ensure that a further communication exclusively between the external appliance and the secure element contains the addressed application. In addition, appropriate mobile terminals for NFC communication are disclosed.

Methods and appliances for forwarding communication between external appliances and secure elements using an interposed element and near field communication (NFC)

A communication system including a first transceiver having a user identification; and a second transceiver having the same user identification as the first transceiver, wherein the first and second transceivers operate in tandem.

Multiple transceivers operable as a single transceiver

A method for controlling the flow of data in a near field communication appliance having an interposed element and a plurality of secure elements is disclosed. The method includes: receiving a first communication, sent by an external appliance, which is intended for an application located in one of the secure elements; determining whether a first one of the secure elements contains the application; and deactivating an interface from the interposed element to the first secure element if the first secure element does not contain the application. Corresponding systems and appliances for near field communication are also disclosed.

Interface deactivation for communication between electronic appliances

A method for controlling the flow of data in a near field communication appliance having an interposed element and a plurality of secure elements connected to the interposed element is disclosed. The method includes receiving a first communication at a first one of the secure elements. The first communication is sent by an external appliance and suited to an application located in one of the secure elements. The method further includes testing, by means of the first secure element, whether the first secure element contains the application. The first secure element is muted if the first secure element does not contain the application. A corresponding near field communication appliance and terminals are also disclosed.

Targeted muting for communication between electronic appliances

A communication method for the communication between two appliances which are set up for communication in a first communication mode is provided. The method includes sending an activation sequence in a second communication mode from the first to the second appliance in order to initiate communication based on the first communication mode; sending data from the second appliance to the first appliance based on the first communication mode. The activation sequence sent to the second appliance includes an initialization sequence and a request for data communication in the first communication mode. In addition, a corresponding electronic appliance and system are provided.

Communication method between electronic appliances, and corresponding appliances

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

A signal processing circuit including a demodulator having an input for receiving a received signal which includes falling and rising signal edges, and an output for outputting a demodulated received signal which, with signal edges of the received signal, includes transitions from a first level to a second level or vice versa, wherein times of the transitions depend on steepnesses of the signal edges. Additionally, the circuit includes a signal generator having an input for receiving the demodulated received signal and coupled to the output of the demodulator, and an output for outputting a corrected demodulated received signal which includes transitions, the times of which relative to the times of the transitions of the demodulated received signal are set based on a reference signal to reduce influences of the steepnesses of the falling and rising signal edges in the corrected demodulated received signal relative to the demodulated received signal.

Adaptive edge equalization of ask-modulated signals

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.

Growing community of inventors

Lieboch, Austria

Thomas Leutgeb