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：US20190132929A1

公开(公告)日：2019-05-02

申请号：US16174411

申请日：2018-10-30

Applicant: Melexis Technologies NV

Inventor： Jorgen STURM ,  Thomas FREITAG ,  Raik FROST ,  Michael BENDER

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B37/0254 ,  B60Q1/00 ,  B60R16/0238 ,  H04L67/12 ,  H04L2012/40273 ,  H05B33/0842

Abstract: A method of operating a plurality of driving units for powering electronic units comprises interchanging a data frame including a bit sequence, between a master control unit and at least one of a plurality of driving units at slave nodes. A step of applying an ID field comprises indicating the driving unit address using a first bit sub-string comprising N bits, allowing the master control unit to identify whether data should be received or transmitted, or allowing each addressed driving unit to decode which action is required by the master control unit, using an R/T command bit, performing a length decoding step, for including information in the ID field regarding the type of instructions included in the data frame, using an F function bit, and assigning data bits to different electronic units or indicating in the length of the bit string in the data field, using a second bit sub-string.

公开(公告)号：US20180145002A1

公开(公告)日：2018-05-24

申请号：US15819260

申请日：2017-11-21

Applicant: Melexis Technologies NV

Inventor： Gunnar MUNDER ,  Heiko GRIMM ,  Thomas FREITAG

IPC: H01L21/66 ,  H01L23/00 ,  G01R31/28

CPC classification number: H01L22/34 ,  G01R31/2858 ,  G01R31/2896 ,  H01L23/562 ,  H01L23/645 ,  H01L23/66 ,  H01L2223/6677

Abstract: An edge crack monitoring system for an integrated circuit provided on a die, comprises a conductive trace comprising at least a first conductive path for allowing current in a first direction, and a second adjacent conductive path for allowing current in a second direction opposite to the first direction. Both adjacent conductive paths form at least one loop surrounding a semiconductor device on a die. The arrangement of the trace is adapted to provide compensation of EM interferences. The trace comprises two terminals being connectable to a detection circuit for detecting damages by generating a fault signal upon detection of disruption of the conductive trace due to a damage. The conductive trace comprises high resistance portions with a resistance of at least 1 kΩ, adapted for reducing self-resonance.