Nxp B.v.

Tdk Electronics Ag

Michael Gebhart

Erich Merlin

Hubert Watzinger

Stefan Sax

Fred George Nunziata

Michael Krenn

Thomas Koidl

Christoph Chlestil

Michael Pirolt

Peter Lukan

In an embodiment a sensor system includes a housing, an electronic circuit and an ultrasonic distance sensor, wherein the electronic circuit and the ultrasonic distance sensor are arranged in the housing, and wherein the sensor system is configured to measure a distance between the sensor system and a surface of a material in a container by an echo propagation time of an ultrasonic burst in air.

Sensor system, use of a sensor system, device, and method for measuring a filling level

A sound transducer and a method for operating a sound transducer are disclosed. In an embodiment a sound transducer includes a first piezoelectric element having first external electrodes configured to generate an acoustic signal from an electrical signal or vice versa, and at least one second external electrode, wherein the second external electrode is separately controllable from the first external electrodes in order to set electro-acoustic properties of the sound transducer.

Sound transducer and method for operating the sound transducer

A Near Field Communication (NFC) enabled device is disclosed. The NFC device includes an antenna. The NFC device also includes an impedance matching network, a carrier frequency generator to generate a carrier wave, a receiver for receiving a magnetic induction wave, a transmitter, a driver circuit configured to alter an impedance of an antenna network associated with the antenna between a first impedance and a second impedance and a control unit. The control unit is configured to derive a first phase difference between the received magnetic induction wave and an internal clock at the first impedance and a second phase difference between the received magnetic induction wave and the internal clock at the second impedance. The control unit is further configured to change a phase of the carrier wave based on a difference between the first phase difference and a second phase difference.

Modulation control through adaptive phase adjustment

Active load modulation antennas for contactless systems typically require the presence of a battery power source in the transponder device. The transponder typically cannot be powered by the reader device alone and also transmit an active load modulation signal. Embodiments in accordance with the invention are disclosed that allow transponder devices to transmit an active load modulation signal when powered only by the reader in the contactless system.

Active load modulation antenna

A carrier assembly for receiving an RFID transponder chip has an attachment side for being attached to a consumer device and an operation side for receiving an RF signal in operational use of the RFID transponder chip.

Growing community of inventors

Linz, Austria

Michael Gebhart