公开(公告)号：US11828827B2

公开(公告)日：2023-11-28

申请号：US18057324

申请日：2022-11-21

Applicant: Melexis Technologies NV

Inventor： Samuel Huber Lindenberger ,  Javier Bilbao De Mendizabal

IPC: G01R35/00 ,  G01R33/022 ,  G01R33/09

CPC classification number: G01R35/005 ,  G01R33/022

Abstract: A magnetic sensor device comprises a substrate. A first magnetic sensor, a second magnetic sensor, and one or more inductors are disposed over the substrate and are controlled by a magnetic sensor controller having a control circuit. The control circuit is adapted for controlling the first magnetic sensor to measure magnetic fields under presence of a first set of magnetic fields, and for controlling the second magnetic sensor to measure magnetic fields under presence of a second set of magnetic fields generated by the inductors. The control circuit calculates a relative sensitivity matching value that converts magnetic field values measured by the second magnetic sensor to a comparable magnetic field value measured by the first magnetic sensor or vice versa. The control circuit is further adapted for correcting a measurement by the second magnetic sensor using the relative sensitivity matching value to produce a corrected measurement, and for calculating a magnetic field gradient by combining a measurement by the first magnetic sensor with the corrected measurement.

公开(公告)号：US20230333014A1

公开(公告)日：2023-10-19

申请号：US18182010

申请日：2023-03-10

Applicant: Melexis Technologies NV

Inventor： Jos RENNIES ,  Luc BUYDENS

IPC: G01N21/55

CPC classification number: G01N21/55 ,  G01N2201/123 ,  G01N2201/12746

Abstract: In a heating appliance comprising a substrate for receiving an item of cookware, a method of measuring reflectivity comprises emitting a time-varying electromagnetic signal from a first side of the substrate, a portion of the time-varying electromagnetic signal propagating through the substrate. Electromagnetic radiation is then received at the first side of the substrate, the received electromagnetic radiation comprising a background ambient component received and a component reflected by the substrate. A gain factor is applied to translate the received electromagnetic radiation to a receive electrical signal. An offset signal component is then identified from the receive electrical signal, the offset signal component arising from the background ambient component of the received electromagnetic radiation. The gain factor from the offset signal component is then estimated using a characterisation of the offset signal component, and the reflectivity is calculated using the receive electrical signal and the estimated gain factor.

公开(公告)号：US11729516B2

公开(公告)日：2023-08-15

申请号：US17667646

申请日：2022-02-09

Applicant: Melexis Technologies NV

Inventor： Wouter Reusen ,  Adrian Hill ,  Luc Buydens

IPC: H04N23/80 ,  H04N25/44

CPC classification number: H04N23/80 ,  H04N25/44

Abstract: A method of digitally processing an image comprises: generating an intensity distribution model (170) in respect of at least a portion of the array of sensing pixels (102) of a detector device (100). The array of sensing pixels comprises clusters of pixels. A pixel (140) from the array of sensing pixels is then selected (202) and a first distance and a second distance from the selected pixel to a first neighbouring pixel (142) and a second neighbouring pixel (144), respectively, are determined (402) and the intensity distribution model (170) referenced (406) by the first distance is used to calculate a first weight and a second weight to apply to the first and second neighbouring pixels, respectively. The first distance comprises an intra-cluster distance and the second distance comprises an inter-cluster distance, the intra-cluster distance being different from the inter-cluster distance. The first weight is applied (214) to the first neighbouring pixel (142) and the second weight is applied (214) to the second neighbouring pixel (144).

公开(公告)号：US11655142B2

公开(公告)日：2023-05-23

申请号：US16744593

申请日：2020-01-16

Applicant: Melexis Technologies NV

Inventor： Appolonius Jacobus Van Der Wiel

IPC: B81C1/00 ,  B81C99/00 ,  B81B7/00 ,  G01L9/00

CPC classification number: B81B7/0051 ,  B81C1/00325 ,  G01L9/0072 ,  B81B2201/0264 ,  B81B2203/0127 ,  B81B2207/098 ,  B81C1/0046 ,  B81C2203/0154

Abstract: A method of manufacturing a sensor device comprising: configuring a moulding support structure and a packaging mould so as to provide predetermined pathways to accommodate a moulding compound, the moulding support structure defining a first notional volume adjacent a second notional volume. An elongate sensor element and the moulding support structure are configured so that the moulding support structure fixedly carries the elongate sensor element and the elongate sensor element resides substantially in the first notional volume and extends towards the second notional volume, the elongate sensor element having an electrical contact electrically coupled to another electrical contact disposed within the second notional volume. The moulding support structure carrying (102) the elongate sensor element is disposed within the packaging mould (106). The moulding compound is then introduced (110) into the packaging mould during a predetermined period of time (112) so that the moulding compound fills the predetermined pathways, thereby filling the second notional volume and surrounding the elongate sensor element within the second notional volume without contacting the elongate sensor element.

公开(公告)号：US20230121579A1

公开(公告)日：2023-04-20

申请号：US17905515

申请日：2021-03-05

Applicant: Robert Bosch GmbH ,  Melexis Technologies NV

Inventor： Claudius Bevot ,  Bernhard Ledermann ,  Stefan Kremer ,  Volodymyr Sotnikov

IPC: G01N27/406 ,  G01R31/52 ,  G01N33/00 ,  G01N27/409 ,  G01N27/416

Abstract: An evaluation and control unit (100) for a broadband lambda probe (200) and a method for operating the same are disclosed. The evaluation and control unit (100) comprises pins (RE, IPE, APE, MES) connectable to electrical wires (201, 202, 203, 204) of electrochemical cells (210, 211) of the broadband lambda probe (200), a controller (103), a ASIC reference potential source (102), wherein the ASIC reference potential source (102) is operable by means of the controller (103), a switch assembly (104) connected to each of the pins (RE, I PE, APE, MES), wherein the switch assembly (104) comprises a first transistor (TWire) and a second transistor (TECU), wherein the switch reference potential source (105) is connected to a gate side of the first and second transistors (TWire, TECU), wherein the controller (103) is configured to vary the switch reference potential (VSW) applied to the gate side of the first and second transistors (TWire, TECU), wherein the switch assembly (104) is configured to allow a limiting current flowing to the drain side of the first transistor (TWire) from the ASIC reference potential if the potential at the gate side of the first and second transistors (TWire, TECU) is at a predetermined voltage between values of an open and closed switch.

公开(公告)号：US20220405949A1

公开(公告)日：2022-12-22

申请号：US17837448

申请日：2022-06-10

Applicant: Melexis Technologies NV

Inventor： Wouter REUSEN ,  Luc BUYDENS ,  Adrian HILL

IPC: G06T7/33

Abstract: A method of digitally processing a plurality of pixels of an image captured using an array of sensing pixels of an optical sensor device. The method comprises identifying a measurement pixel of the plurality of pixels corresponding to a measurement point on a target to be measured. The method then comprises identifying a number of pixels of the plurality of pixels neighbouring the measurement pixel, the number of pixels having a number of intensity values, respectively. A curve is then fitted to the number of pixels and the number of respective intensity values. An estimated intensity value is then determined from the curve in respect of the measurement pixel, thereby simulating a predetermined field of view in respect of the measurement pixel narrower than an actual field of view of the measurement pixel.

公开(公告)号：US11520049B2

公开(公告)日：2022-12-06

申请号：US16373908

申请日：2019-04-03

Applicant: Melexis Technologies NV

Inventor： Andrii Kyselov

IPC: G01S17/00 ,  G01S17/26 ,  G01S17/42 ,  G01S7/4865 ,  G01S17/10

Abstract: A pulsed-light detection and ranging apparatus comprises an optical detector arranged to generate, when in use, time-series data in response to an optical pulse incident thereupon. A processing resource is also provided and arranged to support a pulse analyser (132). The pulse analyser (132) is arranged to identify (134) an inflection point of a pulse described by the time-series data. The pulse analyser (132) is further arranged to calculate (138) a distance based upon determined inflection point relative to a time axis associated with the time-series data.

公开(公告)号：US20220376949A1

公开(公告)日：2022-11-24

申请号：US17747154

申请日：2022-05-18

Applicant: Melexis Technologies NV

Inventor： Raik FROST ,  Jens RÖPCKE ,  Thomas FREITAG ,  Michael BENDER

IPC: H04L12/40 ,  H04L45/745 ,  H04L67/12

Abstract: A lighting system includes a plurality of nodes arranged in a serial network. The lighting system has a master node, one or more gateway nodes, a first communication bus connecting the one or more gateway nodes to the master node, a plurality of slave nodes such that each slave node is connected to a lighting source and is arranged for conveying data messages, and one or more second communication buses, each connecting one of the gateway nodes with one or more slave nodes of the plurality. The master node is arranged for conveying a unique network address to the one or more gateway nodes via the first communication bus, and the one or more gateway nodes are arranged for conveying a unique network address to the plurality of slave nodes via one of the second communication buses. At least one gateway node is arranged for storing a lighting plan for lighting one or more slave nodes connected to that gateway node.

公开(公告)号：US20220116075A1

公开(公告)日：2022-04-14

申请号：US17496486

申请日：2021-10-07

Applicant: Melexis Technologies NV

Inventor： Andreas OTT ,  Federico D'ANIELLO ,  Thomas FREITAG ,  Andrea BASCHIROTTO

IPC: H04B3/54

Abstract: A transmitter device 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. The circuit is arranged for injecting in the positive and negative DC power distribution lines symmetric displacement currents resulting from displacing charges on the one or more capacitors when the one or more capacitors are charged or discharged according to the switching sequence. The symmetric displacement currents give rise to changes in voltage of the same magnitude and opposite polarity on the positive and negative DC power distribution lines.

公开(公告)号：US11287514B2

公开(公告)日：2022-03-29

申请号：US16149256

申请日：2018-10-02

Applicant: Melexis Technologies NV

Inventor： Gaetan Koers ,  Wouter Leten ,  Sam Maddalena ,  Ross Kay

IPC: G01S7/481 ,  G01S17/02 ,  H01L31/12 ,  H01L27/146 ,  G01S17/04

Abstract: A sensor device (100) comprises an emitter device (106) arranged to emit electromagnetic radiation and having an emission region associated therewith. The sensor device (100) also comprises a detector device (108) arranged to receive electromagnetic radiation and having a detection region associated therewith, and an optical system (122). The emission region is spaced at a predetermined distance from the detection region. The optical system (122) defines a plurality of principal rays, a number of the plurality of principal rays intersecting the detection region. The number of the plurality of principal rays also intersect the emission region.