Melexis Technologies Nv

X-fab Semiconductor Foundries Gmbh

Melexis Technologies Sa

Andreas Ott

Thomas Freitag

Andrea Baschirotto

Volodymyr Seliuchenko

Michael Frey

Bruno Boury

Michael Bender

Stefan Eisenbrandt

Klaus Heinrich

Francois Piette

Hartmut Liebing

Andreas Laute

Federico D'Aniello

Andreas Roth

Kyle Legg

Axel Fanget

Cliff De Locht

Federico D'ANIELLO

A motion or saturation determination apparatus () comprising: a light source configured to emit light and an optoelectronic device () configured to receive an electromagnetic signal and to translate the signal to a plurality of electrical output signals corresponding to a plurality of predetermined phase offset values in accordance with an indirect time of flight measurement technique. A signal processing circuit () of the apparatus () is configured to process the electrical output signals to calculate a plurality of measurement vectors derived from the plurality of electrical signals. The vectors are in respect of a plurality of frequencies and comprise a first measurement vector for a fundamental harmonic frequency and a second measurement vector for a non-fundamental frequency. The circuit () is configured to calculate a scalar relating a first amplitude of the first vector to a second amplitude of the second vector, and to use the scalar to identify motion or saturation in respect of the optoelectronic device ().

Distortion determination apparatus and method of determining a distortion

A phase angle error calculation apparatus () comprising a light source () that emits light according to an indirect time of flight (iToF) measurement technique. A photonic mixer cell () generates and stores a plurality of electrical output signals corresponding to a plurality of predetermined phase offset values. A signal processing circuit processes the electrical output signals according to the iToF measurement technique in order to calculate a reference vector and a reference phase angle therefrom. The output signals correspond to measurement at a first level of precision. The circuit processes a subset of output signals according to the iToF measurement technique and calculates a measurement vector and a measurement phase angle therefrom. The subset of the output signals corresponds to measurement at a second level of precision lower than the first level of precision. The circuit calculates a phase angle correction value using the reference phase angle and the measurement phase angle.

Phase angle correction value calculation apparatus and method of calculating a phase angle correction value

A system for characterizing a transistor circuit which has a local minimum in its transfer characteristic by finding its local minimum. The system comprises: a bias voltage generator for generating a toggling signal; a multiplier configured for multiplying an electrical signal which is a function of the drain source current of the transistor circuit, with a waveform alternating between two predefined values synchronously with the toggling signal; a first integrator configured for integrating the electrical signal from the multiplier, and wherein if more integrators are present, linear combinations of output signals of the integrators are provided to the further integrators; a summator configured for summing the toggling signal and an integration signal and configured for outputting the sum to the gate of the transistor circuit.

System for characterizing a transistor circuit

An optical range calculation apparatus () comprises a light source configured to emit light in accordance with an indirect time of flight measurement technique. A photonic mixer cell () is configured to generate and store a plurality of electrical output signals respectively corresponding to a plurality of predetermined phase offset values applied () in accordance with the indirect time of flight measurement technique. A signal processing circuit () is configured to process the plurality of electrical output signals in accordance with the indirect time of flight measurement technique in order to calculate a measurement vector and a measured phase angle from the measurement vector. The signal processing circuit () is configured to calculate a phase angle correction value using reference illumination data and to apply the calculated phase angle correction value in order to correct the measured phase angle, and the signal processing circuit is configured to calculate a range using the corrected measured phase angle.

Optical range calculation apparatus and method of range calculation

An apparatus () comprises a light source that emits light modulated selectively at first and second modulation frequencies. A photonic mixer cell () generates and stores a plurality of electrical output signals respectively corresponding to phase offset values applied in accordance with an indirect time of flight technique and in respect of the selected modulation frequency. A signal processing circuit processes a first number of the electrical output signals at the first modulation frequency to calculate a first measurement phase angle (φ) from a calculated first measurement vector, and a second number of the electrical output signals at the second modulation frequency to calculate a second measurement phase angle (φ) from a second calculated measurement vector. A phase angle difference (Δφ) between the first and second measurement phase angles (φ, φ) is then calculated and a correction value (φ) applied to the phase angle difference (Δφ) to yield an extended range phase angle (φ) for calculating a range.

Optical range calculation apparatus and method of extending a measurable range

An indirect time of flight range calculation apparatus comprises a light source, a photonic mixer that generates a plurality of output signals corresponding to a first plurality of phase values. A signal processor is also provided to calculate a first vector and a first angle from the first vector. The photonic mixer generates a second plurality of electrical output signals corresponding to a second plurality of phase values. Each phase value of the second plurality of phase values is respectively offset with respect to each phase value of the first plurality of phase values by a predetermined phase offset value. The signal processor processes the second plurality of electrical output signals in order to calculate a second vector, and de-rotates the second vector calculated and calculates a second angle from the de-rotated vector before offsetting the second angle against the first angle, thereby generating a corrected output angle.

Indirect time of flight range calculation apparatus and method of calculating a phase angle in accordance with an indirect time of flight range calculation technique

A transmitter device is provided for transmission of data via DC power distribution lines includes a sequence generator arranged for receiving a raw data bit stream to be transmitted over a positive and a negative DC power distribution line and for deriving a switching sequence based on the raw data bit stream, and a circuit including one or more capacitors and a plurality of switches controllable with the switching sequence derived in the sequence generator.

Transmitter for power line communication

A high-voltage sensing device providing full galvanic isolation between a high-voltage domain and a low-voltage domain, wherein the circuit topology of the device resembles that of a Wheatstone bridge, the Wheatstone bridge employing at least one voltage-controlled semiconductor resistor, wherein the circuit also comprises a reference source connected directly to the Wheatstone bridge and the device comprises a number of shielding structures to electrically isolate the high-voltage domain from the low-voltage domain.

Semiconductor circuits, devices and methods

A transmitter and a receiver for transmitting and receiving data via a power supply line comprise a local signal port for respectively receiving and transmitting a serial bit stream and a power line connection port for respectively transmitting a radio frequency signal and receiving the radio frequency signal via the power supply line. The transmitter comprises a modulator unit adapted for encoding the serial bit stream into a baseband signal and generating the radio frequency signal by mixing the baseband signal with a carrier wave so as to redundantly convey the at least one baseband signal in at least four spectral sidebands of the carrier wave. The receiver comprises a demodulator unit adapted for detecting the at least four spectral sidebands of the carrier wave in the radio frequency signal, isolating a baseband signal from the at least four spectral sidebands and decoding the baseband signal into the serial bit stream.

Growing community of inventors

Erfurt, Germany

Andreas Ott