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公开(公告)号：US10352681B2
公开(公告)日：2019-07-16
申请号：US15546789
申请日：2016-01-28
Inventor： Takumi Yoshiya
Abstract: To provide a displacement detection device that detects a displacement of a measuring object housed in a casing without changing the design of the casing or while suppressing the design change of the casing.A displacement detection device includes a pair of magnets arranged outside an injector body housing a needle with a space between the magnets and forming a magnetic field in the space, a soft magnetic material connected to the needle inside the injector body and displaced in accordance with the displacement of the needle and disposed in the magnetic field formed by the pair of magnets, and a sensor disposed outside the injector body and in the magnetic field formed by the pair of magnets, and detecting a change in magnetic flux density in accordance with the displacement of the soft magnetic material.
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82.发明申请公开(公告)号：US20190173002A1
公开(公告)日：2019-06-06
申请号：US16251844
申请日：2019-01-18
Applicant: Melexis Technologies SA
Inventor： Robert RACZ
Abstract: A two-dimensional magnetic field sensor comprises a support, a single magnetic field concentrator which consists of at least three parts which are separated from each other by gaps, and at least two magnetic sensor elements. The magnetic sensor elements are arranged in the region of the edge of the magnetic field concentrator. No magnetic sensor element is present in the gaps.
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公开(公告)号：US10302461B2
公开(公告)日：2019-05-28
申请号：US15550041
申请日：2016-02-18
Inventor： Takumi Yoshiya
Abstract: To provide a rotation detection device that has a miniaturized sensor IC in comparison with a prior art.A rotation detection device includes: a magnet that forms a magnetic field toward a tooth surface of a gear; and a sensor disposed between the magnet and the gear, the sensor including: at least a pair of magnetic detection elements x1 and x2 that outputs signals according to a magnetic flux density in a radial direction of the gear; and a magnetic concentrator that induces, in the radial direction of the gear, a component in a circumferential direction of the gear in the magnetic flux density on detection surfaces of the magnetic detection elements x1 and x2, the sensor detecting a variation in a magnetic flux density accompanying the rotation of the gear.
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公开(公告)号：US09846204B2
公开(公告)日：2017-12-19
申请号：US15153960
申请日：2016-05-13
Applicant: MELEXIS TECHNOLOGIES SA
Inventor： Samuel Huber , Samuel Francois
CPC classification number: G01R33/0082 , G01R33/0023 , G01R33/0064 , G01R33/07
Abstract: An integrated semiconductor device for measuring a magnetic field, comprising: a Hall sensor, a first lateral isotropic sensor having a first stress sensitivity and a first temperature sensitivity, a second lateral isotropic sensor having a second stress sensitivity and a second temperature sensitivity, optional amplifying means, digitization means; and calculation means configured for calculating a stress and temperature compensated Hall value in the digital domain, based on a predefined formula which can be expressed as an n-th order polynomial in only two parameters. These parameters may be obtained directly from the sensor elements, or they may be calculated from a set of two simultaneous equations. A method of obtaining a Hall voltage signal, and compensating said signal for stress and temperature drift.
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公开(公告)号：US12204473B2
公开(公告)日：2025-01-21
申请号：US18297148
申请日：2023-04-07
Applicant: MELEXIS TECHNOLOGIES SA
Inventor： Nicolas Tribie , Guido Dupont , Paul Laval
Abstract: An electronic circuit device for acquiring an analog signal. The device comprising: a data line, one or more control lines (of which at least a clock line, and configured for transmitting a stored digital measurement result using the data line and the one or more control lines, in accordance with a synchronous serial communication protocol; a detection means for recognizing a synchronization pulse on one of the one or more control lines or on the data line; wherein the device is configured for repetitively measuring the analog signal or for measuring the analog signal triggered by the synchronization pulse; and for storing one or more digital measurement results or combinations thereof when triggered by the synchronization pulse.
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Patent Agency Ranking
公开(公告)号：US12188790B2
公开(公告)日：2025-01-07
申请号：US18076026
申请日：2022-12-06
Applicant: Melexis Technologies SA
Inventor： Takumi Yoshiya , Hiroyuki Takahashi
Abstract: A sensor assembly includes a magnetic source for generating a magnetic field; a lever or stick, which can be manually tilted about a reference orientation; a magnetic sensor device for measuring the magnetic field. The magnetic source forms a central opening. The stick includes a ferromagnetic object mounted such that a potential energy of the magnetic field is minimal when the stick is oriented in the reference orientation.
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公开(公告)号：US20240401985A1
公开(公告)日：2024-12-05
申请号：US18805985
申请日：2024-08-15
Applicant: Melexis Technologies SA
Inventor： Lorenzo LUGANI
Abstract: A position sensor is for determining the position of a conductive target using a transmit coil and a plurality of receive coils. The receive coils may each include two strands and a strand may be obtained from a conversion of a substantially sinusoidal primitive function. The position sensor may realize a reduction of harmonics in signals from the receive coils.
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公开(公告)号：US20240385058A1
公开(公告)日：2024-11-21
申请号：US18689759
申请日：2022-09-08
Applicant: MELEXIS TECHNOLOGIES SA
Inventor： Gael CLOSE , Nicolas DUPRE , Théo LE SIGNOR
Abstract: A magnetic sensor system includes: an integrated circuit having a semiconductor substrate, which has a plurality of magnetic sensors configured for measuring at least two first magnetic field components oriented in a first direction, and for measuring at least two second magnetic field components oriented in a second direction; a permanent magnet movable relative to the integrated circuit and configured for generating a magnetic field; a processing circuit configured for determining at least two physical quantities related to a position of the magnet, using a predefined algorithm based on the measured first and second magnetic field components or values derived therefrom, as inputs, and that uses a plurality of at least eight constants which are determined using machine learning. A force sensor system, a joystick or thumbstick system, and a method employ features of the magnetic sensor system.
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公开(公告)号：US12137618B2
公开(公告)日：2024-11-05
申请号：US18351797
申请日：2023-07-13
Applicant: Melexis Technologies SA
Inventor： Arnaud Laville , Eric Lahaye , Jian Chen
IPC: H10N52/80 , G01R33/07 , H01L23/495 , H01L25/065 , H10N52/00
Abstract: A sensor device comprising: a lead frame; a first/second semiconductor die having a first/second sensor structure at a first/second sensor location, and a plurality of first/second bond pads electrically connected to the lead frame; the semiconductor dies having a square or rectangular shape with a geometric center; the sensor locations are offset from the geometrical centers; the second die is stacked on top of the first die, and is rotated by a non-zero angle and optionally also offset or shifted with respect to the first die, such that a perpendicular projection of the first and second sensor location coincide.
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公开(公告)号：US12078689B2
公开(公告)日：2024-09-03
申请号：US18334225
申请日：2023-06-13
Applicant: Melexis Technologies SA
Inventor： Gael Close , Arnaud Laville , Stefan Rigert , Samuel Huber Lindenberger
CPC classification number: G01R33/0017 , G01D5/142 , G01D18/00 , G01R33/0041 , G01R33/07 , G01R35/00
Abstract: The present invention relates to a field-sensor device comprising a reference field sensor providing a reference sensor signal in response to a field, a calibrated field sensor providing a calibrated sensor signal in response to the field, a reference circuit connected to the reference field sensor and adapted to receive a reference signal, and an adjustable circuit connected to the calibrated field sensor and adapted to receive a calibrated signal. When the adjustable circuit is adjusted with the calibrated signal, said calibrated signal being different from the reference signal, the calibrated field sensor provides a calibrated sensor signal substantially equal to the reference sensor signal. The field sensor device is arranged to be exposed, when in a calibration mode, to a uniform calibration field and, when in operational mode, to an operational field being a field gradient.
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