公开(公告)号：US20200018781A1

公开(公告)日：2020-01-16

申请号：US16512526

申请日：2019-07-16

Applicant: Melexis Technologies NV

Inventor： Asparuh Ivanov GRIGOROV ,  Johan VERGAUWEN

IPC: G01R17/10 ,  G01R31/28 ,  G01R19/00

Abstract: The present invention relates to a half-bridge signal processing circuit comprising a first and a second branch. The first branch comprises a first stimulus responsive sense element and a first current source arranged to provide a current to the first sense element. The second branch comprises a second stimulus responsive sense element and a second current source arranged to provide a current to said second sense element. The first and the second branch have a terminal in common. The first branch comprises a first node between said the current source and the first stimulus responsive sense element configured to generate a first signal related to a voltage over the first sense element. The second branch comprises a second node between the second current source and the second stimulus responsive sense element configured to generate a second signal related to a voltage over the second sense element.

公开(公告)号：US20190383687A1

公开(公告)日：2019-12-19

申请号：US16440440

申请日：2019-06-13

Applicant: Melexis Technologies NV

Inventor： Jan-Willem BURSSENS

IPC: G01L19/06 ,  G01L19/00 ,  C23C14/16

Abstract: Use of a metallic material for protecting platinum against oxygen dissolution therein; a sensor comprising a substrate, a platinum component having a first surface facing toward the substrate and a second surface facing away from the substrate, a protective covering over the platinum component, the protective covering comprising one or more layers, at least on of which is an oxygen getter material, a lower surface in physical contact with the second surface of the platinum component, and an upper surface; and a method for forming such a sensor.

公开(公告)号：US10345154B2

公开(公告)日：2019-07-09

申请号：US15997836

申请日：2018-06-05

Applicant: Melexis Technologies NV

Inventor： Carl Van Buggenhout ,  Ben Maes ,  Karel Vanroye ,  Stijn Reekmans

IPC: G01J5/06 ,  G01J5/10 ,  G01J5/04 ,  G01J5/00

Abstract: An infrared sensor assembly for sensing infrared radiation comprises infrared sensing elements and the infrared sensing compensation elements that are different so that, for a same flux on the infrared sensing elements and the infrared sensing compensation elements, the radiation responsive element of the infrared sensing elements absorbs more radiation than the radiation responsive element of the infrared sensing compensation elements, as to receive substantially more radiation than the radiation responsive element of the infrared sensing compensation elements. An output of the sensor array is a subtractive function of a sum of the signals of the plurality of infrared sensing elements and a sum of the signals of the plurality of the infrared sensing compensation elements such that at least linear and/or non-linear parasitic thermal fluxes are at least partly compensated for.

公开(公告)号：US10337926B2

公开(公告)日：2019-07-02

申请号：US16191733

申请日：2018-11-15

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Carl Van Buggenhout ,  Karel Vanroye

IPC: G01J5/02 ,  G01J5/12 ,  G01J5/22 ,  G01J5/00

Abstract: A semiconductor device for measuring IR radiation comprising: at least one sensor pixel; at least one reference pixel shielded from said IR radiation comprising a heater; a controller adapted for: measuring a responsivity by applying power to the heater, while not heating the sensor pixel; measuring a first output signal of an unheated pixel and a first reference output signal of the heated pixel, obtaining the responsivity as a function of a measure of the applied power to the heater and of the difference between the first output signal and the first reference output signal; applying a period of cooling down until the temperature of the reference pixel and the sensor pixel are substantially the same; generating the output signal indicative of the IR radiation, based on the difference between the sensor and the reference output signal, by converting this difference using the responsivity.

公开(公告)号：US20190132159A1

公开(公告)日：2019-05-02

申请号：US16170333

申请日：2018-10-25

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Michael FREY ,  Thomas FREITAG

IPC: H04L25/02 ,  G06F13/36 ,  G06F13/42 ,  G06F13/40

Abstract: A transmitter for establishing communication between a device and a differential network bus includes current driving means connected to each of the two conduction lines of the differential network bus, through a first and second conduction paths of the transmitter; at least one unidirectional current regulator for extracting a first current equal to a known ratio of a parasitic current circulating through the first conduction path, with a direction inverse to the driving current through the conduction path connected to one of the lines of the differential bus; means for obtaining, from the first current, a second current with a magnitude equal to the original magnitude of the parasitic current; and means for introducing the second current into the second conduction path connected to the other line of the differential bus.

公开(公告)号：US20190113366A1

公开(公告)日：2019-04-18

申请号：US16157306

申请日：2018-10-11

Applicant: Melexis Technologies NV

Inventor： Javier BILBAO DE MENDIZABAL

IPC: G01D5/16

Abstract: A magnetic field sensor is described comprising at least three magnetic flux concentrator sections integrated on a planar substrate, each section being adjacent to at least one of the other sections and being separated by gaps. The sensor comprises at least a first sensing element positioned for sensing flux density in or near the gap between a first section and a second section and at least a second sensing element positioned for sensing flux density in or near the gap between the first section and at least a further section. The magnetic field sensor further comprises further sensing elements arranged to measure changes of the magnetic field in the direction perpendicular to the substrate.

公开(公告)号：US10171018B2

公开(公告)日：2019-01-01

申请号：US15629977

申请日：2017-06-22

Applicant: Melexis Technologies NV

Inventor： Marcel Jakobus Gerardus Braat ,  Marc Lambrechts

IPC: H02H7/08 ,  H02P8/38 ,  H02P6/28 ,  H02P8/22 ,  H02P8/36

Abstract: A method for detecting stall of a multiphase motor operated in a sinusoidal micro-stepped mode. The method comprises: a) measuring at least one phase current and/or measuring the sum of all phase currents at regular time intervals synchronous with the micro-steps, b) calculating the difference between the measured phase current at a first moment and the measured phase current of the same phase at a previous moment and/or the difference between the measured sum of all phase currents at a first moment and the measured sum of all phase currents at a previous synchronous moment, c) analyzing the series of obtained current differences so as to generate a stall detection signal.

公开(公告)号：US20180336145A1

公开(公告)日：2018-11-22

申请号：US15974862

申请日：2018-05-09

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Philippe LAUGIER ,  Benoit HEROUX ,  Thomas FREITAG

IPC: G06F13/12 ,  G06F11/10

CPC classification number: G06F13/126 ,  G06F9/30 ,  G06F11/08 ,  G06F11/10 ,  G06F11/106 ,  G06F11/1096 ,  G06F11/2043 ,  G06F13/122 ,  G06F15/7832

Abstract: A method for performing an initialization or a reset of a port of an integrated circuit includes: receiving in a device for supervising ports, from a central processing unit of the integrated circuit, a port initialisation signal comprising port initialisation data and one or more parity bits; inverting in the device for supervising ports the one or more parity bits in accordance with the port initialization signal; providing the port initialisation signal comprising the port initialisation data and the inverted one or more parity bits to the port of the integrated circuit; on receipt of the port initialisation signal at the port, inverting again in the port the inverted one or more parity bits, thereby obtaining the original one or more parity bits and storing the port initialisation data and the just obtained original one or more parity bits.

公开(公告)号：US10107898B2

公开(公告)日：2018-10-23

申请号：US14956515

申请日：2015-12-02

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Volodymyr Seliuchenko

IPC: G01S7/486 ,  H01L27/146 ,  G01S7/484 ,  G01S17/10

Abstract: A semiconductor pixel unit for sensing near-infrared light, and for optionally simultaneously sensing visible light. The pixel unit comprises a single substrate with a first semiconductor region and a second semiconductor region electrically separated by an insulating region, for example a buried oxide layer. The pixel unit is adapted for generating a lateral electrical field in the second region for facilitating transport of photoelectrons generated in the second region by near-infrared light passing through the first region and the insulating region.

公开(公告)号：US20180246191A1

公开(公告)日：2018-08-30

申请号：US15899868

申请日：2018-02-20

Applicant: Melexis Technologies NV

Inventor： Saad AHMAD ,  Volodymyr SELIUCHENKO ,  Sharath PATIL ,  Darrell LIVEZEY ,  Marcelo MIZUKI

IPC: G01S7/486 ,  G01S7/487 ,  G01S17/02

CPC classification number: G01S7/4861 ,  G01S7/4876 ,  G01S17/02 ,  H04N5/3658 ,  H04N5/378

Abstract: A sample and hold system, for capturing and reading a sequence of traces of an input signal. The sample and hold system comprising a readout device, a controller, and a sample and hold array of unit cells. The controller is configured for controlling the sample and hold system, such that during an acquisition phase a trace of samples is taken from the input signal in an original sample order and such that the samples are held in the unit cells wherein the samples are assigned to the unit cells in an acquisition order, such that during a consecutive readout phase the samples are read out from the unit cells wherein the order in which the unit cells are read out corresponds with a readout order, and such that the acquisition order and/or the readout order differs from trace to trace.