Infineon Technologies Ag

Infineon Technologies Austria Ag

Norbert Druml

Philipp Greiner

Hannes Plank

Ievgeniia Maksymova

Armin Krieg

Markus Dielacher

Hendrikus Van Lierop

Alberto Garcia Izquierdo

Boris Kirillov

Michael Mark

Thomas Herndl

Andreas Strasser

Robert Lobnik

Christoph Steffan

Stephan Gerhard Albert

Christian Steger

Maksym Sladkov

Theresa Egger

Philipp Stelzer

Franz Michael Darrer

Thomas Leutgeb

Armin Josef Schoenlieb

Josef Haid

Georg Schitter

David Brunner

Wojciech Kudla

Han Woong Yoo

Richard Schroedter

Hermann Hofer

Selma Karic

Leonhard Niedermueller

Martina Schwarz

A vehicle system of a vehicle includes a viewing tracking system configured to monitor a driver viewing direction of a vehicle driver and generate driver viewing direction information that indicates the driver viewing direction of the vehicle driver; and an image projection system configured to receive the driver viewing direction information and project an image into the driver viewing direction of the vehicle driver based on the driver viewing direction information. An image projection direction of the image projection system at which the image is projected varies based on a change in the driver viewing direction of the vehicle driver.

Driver and passenger aware content projection

A method of synchronizing a first oscillation about a first axis with a second oscillation about a second axis includes: generating a first position signal that indicates a position of the first oscillation about the first axis; generating a second position signal that indicates a position of the second oscillation about the first axis; determining a phase difference between the first and the second position signals; comparing the phase difference to a threshold value to generate a comparison result; generating a reference signal having a first frequency; synchronizing the first oscillation to the first frequency; and triggering a start of the reference signal responsive to the comparison result indicating that the phase difference is less than the threshold value.

Fast LISSAJOUS lock control and synchronization of scanning axes of microelectromechanical systems

An oscillator control system includes an oscillator structure configured to oscillate about first and second rotation axes according to a Lissajous pattern, wherein an oscillation about the second rotation axis imparts a cross-coupling error onto an oscillation about the first rotation axis, and wherein the cross-coupling error changes in accordance with a Lissajous position within the Lissajous pattern; and a driver circuit that includes a phase-locked loop (PLL) configured to regulate a driving signal that drives the oscillation about the first rotation axis. The PLL is configured to generate a PLL signal based on a phase error of the oscillation about the first rotation axis. The PLL includes a compensation circuit configured to receive the PLL signal and the Lissajous position within the Lissajous pattern, apply a compensation value to the PLL signal to generate a compensated PLL signal used for generating the driving signal based on the Lissajous position.

Detection, correction, and compensation of coupling effects of microelectromechanical system (MEMS) axes of a two-dimensional scanning structure

A scanning system includes a transmitter, a scanning structure, and a controller. The transmitter is configured to transmit a frequency modulated continuous wave (FMCW) light beam that includes a plurality of frequency ramps including up-chirps and down-chirps that are matched into up-down chirp pairs. The scanning structure is configured to oscillate about a scanning axis such that a deflection angle of the scanning structure continuously varies over time in an angular range between two maximum deflection angles. The controller is configured to segment the angular range into a plurality of sub-angular ranges and assign each up-down chirp pair to a different sub-angular range of the plurality of sub-angular ranges. Each up-down chirp pair includes an up-chirp transmitted in an assigned sub-angular range during a first scanning movement of the scanning structure and a down-chirp transmitted in the assigned sub-angular range during a second scanning movement of the scanning structure.

Mirror movement and laser shoot pattern compensation for frequency-modulated continous-wave (FMCW) LIDAR

A method of Lissajous scanning includes driving a first oscillator structure about a first rotation axis at a first resonance frequency according to a first driving signal, and driving a second oscillator structure about a second rotation axis at a second resonance frequency according to second driving signal different from the first resonance frequency. The first driving signal has a first low level, a first high level, and a first duty cycle, the combination of which produces the first resonance frequency, and the second driving signal has a second low level, a second high level, and a second duty cycle, the combination of which produces the second resonance frequency. At least one of the second low level, the second high level, and the second duty cycle is different from the first low level, the first high level, and the first duty cycle, respectively.

Driving signal parameter variation for driving MEMS mirrors for synchronization control and tuning Lissajous scanning

A scanning system includes a scanning structure configured to rotate about at least one first scanning axis; a driver configured to drive the scanning structure about the at least one first scanning axis and detect a position of the scanning structure with respect to the at least one first scanning axis during movement of the scanning structure; a segmented pixel sensor including a plurality of sub-pixel elements arranged in a pixel area; and a controller configured to selectively activate and deactivate the plurality of sub-pixel elements into at least one active cluster and at least one deactivated cluster to form at least one active pixel from the at least one active cluster, receive first position information from the driver indicating the detected position of the scanning structure, and dynamically change a clustering of activated sub-pixel elements and a clustering of deactivated sub-pixel elements based on the first position information.

Beam steering aware pixel clustering of segmented sensor area and implementing averaging algorithms for pixel processing

An oscillator driver system includes an oscillator structure and a driver circuit. The oscillator structure includes a rotor terminal configured to receive a rotor voltage and a stator terminal configured to receive a stator voltage, and is driven about a rotation axis according to a voltage difference between the rotor and stator voltages. The driver circuit is configured to generate a driving signal and output the driving signal as the rotor voltage, wherein the driving signal toggles between low and high voltage levels at an actuation frequency to drive the oscillator structure about the rotation axis, and wherein the stator voltage is a fixed voltage. The low and high voltage levels are greater than the stator voltage such that the voltage difference toggles between a low voltage difference and a high voltage difference as the driving signal toggles between the low voltage level and the high voltage level, respectively.

Power optimized driving signal switching scheme for oscillating MEMS mirrors

An oscillator system includes an oscillator structure configured to oscillate about a first axis according to a first oscillation and oscillate about a second axis according to a second oscillation; a first driver configured to drive the first oscillation, detect first zero-crossing events of the first mirror, and generate a first position signal based on the detected first zero-crossing events; a second driver configured to drive the second oscillation, detect second zero-crossing events of the second mirror, and generate a second position signal based on the detected second zero-crossing events; and a synchronization controller configured to receive the first and the second position signals, and synchronize at least one of a phase or a frequency of the second oscillation with at least one of a phase or a frequency of the first oscillation, respectively, based on the first and the second position signals.

Synchronization of microelectromechanical system (MEMS) mirrors

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 method of synchronizing a first oscillation about a first axis with a second oscillation about a second axis includes: generating a first position signal that indicates a position of the first oscillation about the first axis; generating a second position signal that indicates a position of the second oscillation about the first axis; determining a phase difference between the first and the second position signals; comparing the phase difference to a threshold value to generate a comparison result; generating a first reference signal having a first frequency and a second reference signal having a second frequency; synchronizing the first oscillation to the first frequency and synchronizing the second oscillation to the second frequency; monitoring the comparison result; and synchronously triggering a start of the first reference signal and the second reference signal responsive to the comparison result indicating that the phase difference is less than the threshold value.

Fast Lissajous lock control and synchronization of scanning axes of microelectromechanical system

An object sensor test system includes a sensor and a test bench. The sensor includes a receiver configured to receive a simulated optical signal and a processing chain that includes a plurality of processing components configured to process at least one measurement signal generated in response to the simulated optical signal to generate processed test data. The sensor also includes a test interface configured to receive a control signal, and selectively extract processed test data at a selected output of the processing chain based on the control signal. The test bench is configured to transmit the control signal to the test interface, receive the processed test data from the sensor, compare the received processed test data with expected data to generate a comparison result, and determine that a segment of the processing chain is operating normally or abnormally based on the comparison result.

Advanced driver assistance systems test-interface for automated driving sensors

A localization apparatus includes: a time-of-flight circuit configured to emit a first modulated light signal and to receive reflections of the first modulated light signal from at least three devices; a processing circuit configured to determine, based on the first modulated light signal and the reflections, positions of the at least three devices in a first coordinate system associated with the apparatus; and a receive circuit configured to receive second modulated signals from the at least three devices, the second modulated signals including data indicating positions of the at least three devices in a second coordinate system. The processing circuit is further configured to determine a position and orientation of the apparatus in the second coordinate system based on the positions of the at least three devices in the first coordinate system and the data indicating the positions of the at least three devices in the second coordinate system.

Localization apparatus and method

A system for driving a microelectromechanical system (MEMS) oscillating structure includes a phase error detector configured to generate a phase error signal based on measured event times and expected event times of the MEMS oscillating structure oscillating about a rotation axis; a disturbance event detector configured to detect a disturbance event based on the phase error signal and a disturbance threshold value; and a phase frequency detector (PFD) and correction circuit configured to, in response to the detected disturbance event, monitor for a plurality of measured crossing events of the MEMS oscillating structure oscillating about the rotation axis, generate a first compensation signal based on at least a first measured crossing event and a second measured crossing event to correct a frequency of the MEMS oscillating structure, and generate a second compensation signal based on a third measured crossing event to correct a phase of the MEMS oscillating structure.

Mechanical shock detection and phase and frequency correction of a MEMS mirror

A light detection and ranging (LIDAR) system is provided. The LIDAR system comprises at least two lasers configured to emit aligned beams of light and a mirror configured to deflect the beams of light emitted by the lasers. The mirror is supported to be pivotable with respect to an axis of the mirror so as to allow the beams of light to scan a field of view of the LIDAR system. The LIDAR system further comprises a driver configured to drive the mirror into oscillations and a controller. The controller is configured to control at least one laser so as to selectively change a size of the field of view and/or to control the driver so as to selectively change the size of the field of view.

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Graz, Austria

Norbert Druml