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.

公开(公告)号：US11284027B2

公开(公告)日：2022-03-22

申请号：US16811259

申请日：2020-03-06

Applicant: Melexis Technologies NV

Inventor： Andreas Bonin ,  Darrell Livezey ,  Jeannette Zarbock ,  Liqun Wu ,  Volodymyr Seliuchenko

IPC: H04N5/369 ,  G01J1/44 ,  H04N5/378

Abstract: A pixel circuit wherein a pixel arrangement comprises a pixel comprising a photodetector, an integrator for accumulating a signal from the photodetector, a source following output transistor for amplifying the integrated signal, and a current source for applying a readout current through the output transistor, a voltage regulating circuit comprising an amplifier, a replica transistor dimensioned substantially the same as the output transistor, and a replica current source for providing substantially the readout current through each replica transistor, a gate of the replica transistor is connected with an output node of the amplifier connected with the pixel arrangement, and a source of the replica transistor is connected with a negative input of the amplifier, and with the replica current source, a predefined reference voltage is applicable to a positive input.

公开(公告)号：US11281614B2

公开(公告)日：2022-03-22

申请号：US15061587

申请日：2016-03-04

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Peter Vandersteegen

IPC: G06F13/40 ,  H04L12/40 ,  G06F1/26 ,  G06F1/3296 ,  H04L61/5038 ,  G06F13/42 ,  H04L101/627

Abstract: A bus node IC comprises at least one static address selection terminal and a detecting circuit for detecting a state of the static address selection terminal, and a communication circuit adapted for determining a node address identifier taking the detected state into account. The detecting circuit is adapted for detecting the state by determining an electrical property of a passive electronic component when connected to the static address selection terminal. The communication circuit is adapted for receiving/transmitting data over the data bus in accordance with a first communication protocol using the node address identifier for identification of the IC, and for receiving/transmitting data over said data bus in accordance with a second communication protocol using a further node address identifier for identification of the IC, wherein the communication circuit is adapted for configuring the further node address identifier by using data received using the first protocol.

公开(公告)号：US20220066004A1

公开(公告)日：2022-03-03

申请号：US17409968

申请日：2021-08-24

Applicant: Melexis Technologies NV

Inventor： Andreas OTT

IPC: G01S7/497 ,  G01S17/894 ,  G01S17/58

Abstract: A motion or saturation determination apparatus (100) comprising: a light source configured to emit light and an optoelectronic device (102) 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 (110, 116, 126, 132, 136) of the apparatus (100) 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 (110, 116, 126, 132, 136) 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 (102).

公开(公告)号：US11195772B2

公开(公告)日：2021-12-07

申请号：US16441743

申请日：2019-06-14

Applicant: Melexis Technologies NV

Inventor： Appolonius Jacobus Van Der Wiel

IPC: H01L29/84 ,  H01L23/31 ,  H01L21/02 ,  H01L21/768 ,  H01L23/29 ,  H01L23/522 ,  H01L23/528 ,  H01L23/532 ,  H01L23/00 ,  H01L29/40 ,  H01L37/02

Abstract: A semiconductor device comprises a first doped semiconductor layer, a second doped semiconductor layer, an oxide layer covering the first doped semiconductor layer and the second doped semiconductor layer, and an interconnect. The first doped semiconductor layer is electrically connected with the second doped semiconductor layer by means of the interconnect which crosses over a sidewall of the second doped semiconductor layer. The interconnect comprises a metal filled slit in the oxide layer. At least one electronic component is formed in the first and/or second semiconductor layer. The semiconductor device moreover comprises a passivation layer which covers the first and second doped semiconductor layers and the oxide layer.