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公开(公告)号：US20250071256A1
公开(公告)日：2025-02-27
申请号：US18726088
申请日：2022-12-29
Applicant: LX SEMICON CO., LTD. , LG INNOTEK CO., LTD.
Inventor： Kyu Ho KIM , Seung Jun CHOI , Jin Kook YUN , Young Seop MOON , Eun Mi KIM
IPC: H04N17/00 , G01D5/14 , H04N23/667 , H04N23/68
Abstract: The present invention relates to a controller of a camera module capable of simplifying a measurement system and reducing cost by having a frequency response measurement function.
A controller of camera module according to an embodiment, in a driving mode, preprocesses an actuator position value signal sensed by a Hall sensor to output to a measurement equipment, a target position value, arithmetic processes a target position value, an actuator position value signal and a disturbance signal supplied from the measurement equipment to output an error value signal to the measurement equipment, and generates an actuator driving signal that compensates for the error value signal to drive an actuator.-
公开(公告)号：US12237746B2
公开(公告)日：2025-02-25
申请号：US17628333
申请日：2020-08-06
Applicant: LG INNOTEK CO., LTD.
Inventor： Jung Cheol Kim , Tae Bong Park
Abstract: The present embodiment relates to a lens driving device which includes: a substrate; a housing; a bobbin; a sensing coil; a first magnet; a second magnet; a third magnet; a dummy member; a first coil that includes a first coil unit and a second coil unit; and a first position sensor that is disposed on the substrate and corresponds to the sensing coil, wherein the first magnet and the second magnet are positioned on opposite sides from each other, the third magnet and the dummy member are positioned on opposite sides from each other, the sensing coil is provided with a driving signal, and the first position sensor senses the strength of the magnetic field of the sensing coil and outputs an output signal.
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公开(公告)号：US12235133B2
公开(公告)日：2025-02-25
申请号：US18013371
申请日：2021-06-21
Applicant: Valeo Schalter und Sensoren GmbH
Inventor： Sageesh Pachakkil , Ekkehart Fröhlich , Dirk Rachui
Abstract: The invention relates to a sensor assembly (10) for detecting rotation of a shaft about an axis of rotation (12), said sensor assembly having a housing (24) in which at least one magnetic field sensor (14) is arranged. The at least one magnetic field sensor (14) is designed to acquire a variation in a magnetic field generated by a magnet device (16) in the sensor assembly (10), which variation is associated with the rotation of the shaft about the axis of rotation (12). A shield device (30) arranged on the housing (24) is provided to shield the at least one magnetic field sensor (14) from the surroundings (28) of the sensor assembly (10). The shield device (30) can be removed from the housing (24), with the shield device (30) being retained on the housing (24) by means of a latching connection.
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公开(公告)号：US20250062663A1
公开(公告)日：2025-02-20
申请号：US18806012
申请日：2024-08-15
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Alejandro M. Damonte Vegas , William Z. Weis
Abstract: A power tool includes a housing, a motor at least partially disposed in the housing, a controller configured to control an operational characteristic of the motor, and a circuit board. The circuit board is connected to the controller. The circuit board includes a first sensor portion configured to sense a first position of a first user input device, a second sensor configured to sense a second position of a second user input device, and a third sensor configured to sense a third position of a third user input device.
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公开(公告)号：US20250044124A1
公开(公告)日：2025-02-06
申请号：US18362768
申请日：2023-07-31
Inventor： Enda Joseph Nicholl , Dara Lorcan O'Sullivan
IPC: G01D5/14
Abstract: Aspects of this disclosure relate to multi-turn magnetic sensing systems and related methods. A system can include a first multi-turn magnetic sensor and a second multi-turn magnetic sensor, in which domain walls propagate in an opposite direction in the second multi-turn magnetic sensor relative to the first multi-turn magnetic sensor in response to a magnetic field. A decoder can output a turn count that is based on states of the first and second multi-turn sensors. The first and second multi-turn sensors can have a reset state that corresponds to the turn count having a value between minimum and maximum values of a counting range relative to the reset state.
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Patent Agency Ranking
公开(公告)号：US12218663B2
公开(公告)日：2025-02-04
申请号：US18290073
申请日：2022-05-10
Applicant: APEM
Inventor： Charly Simon
Abstract: A control device comprising: a body comprising a printed circuit, a mobile actuator able to move in pivoting relative to the body about an axis 50 of rotation, a torsion spring comprising two end strands resting against two respective bearing surfaces of the actuator, said torsion spring being designed to urge the actuator to rotate towards a position of rest, at least one magnet rigidly secured to the actuator, a magnetic-field sensor arranged on the printed circuit facing the magnet and designed to detect the angular position of the magnet and to produce an electric signal dependent on the detected angular position, characterized in that it comprises two end-stops rigidly secured to the body, a respective elastic element being arranged between each end-stop and the body, each end-stop comprising a bearing surface bearing on a respective end strand of the torsion spring.
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公开(公告)号：US12218552B2
公开(公告)日：2025-02-04
申请号：US17621609
申请日：2020-04-28
Applicant: Robert Bosch GmbH
Inventor： Martin Joerg , Dietmar Hofmann , Peter Bigl
Abstract: As is further apparent from FIGS. 1 to 4, the illustrated exemplary embodiment of the measuring apparatus 10 comprises a second housing 12 and a metal shielding plate 14 that encompasses the second housing 12. In so doing, the metal shielding plate 14 is formed in a closed manner and pushed over the second housing 12. The second housing 12 is formed in the illustrated exemplary embodiment as a synthetic material housing. The measuring element 16.2 is formed in the illustrated embodiment as a TMR component 16.2A that is based on the TMR effect (tunnel magneto-resistive effect) and cooperates with the permanent magnet 22 that is arranged on the end of the shaft 26A of the brushless EC motor in order to detect the prevailing rotational position of the shaft 26A. It is naturally also possible to use other measuring elements 16.2 that are suitable to detect the prevailing rotational position of the shaft. In the illustrated exemplary embodiment of the measuring apparatus 10, a sensor electronic system 16 comprises in addition to the measuring element 16.2 a circuit board 16.1 on which is positioned and fastened the measuring element 16.2, and multiple current rails 16.3 are pressed into the circuit board [16] 16.1 and held in position by the second housing 12. As a consequence, the rotational position signal that is detected by the measuring element 16.2 is transmitted by way of the circuit board 16 and the current rails 16.3 to a (not illustrated) control device.
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8.发明申请公开(公告)号：US20250033651A1
公开(公告)日：2025-01-30
申请号：US18712743
申请日：2022-11-25
Applicant: Bridgestone Europe NV/SA [BE/BE]
Inventor： Juan Carlos Fernandez , Antonio Fernandez , Maxim Gheorghe
Abstract: A tire analysis method and system for determining characteristic parameters of an agricultural tractor provided with two front wheels supporting two front tires and with two rear wheels supporting two rear tires. A first rotation sensor is mounted on a first wheel, a second rotation sensor is mounted on a second wheel; the agricultural tractor is driven along a straight path; while driving the agricultural tractor along the straight path, the total number of revolutions made by the first wheel and by the second wheel are measured; and at least one characteristic parameter is determined using the total number of revolutions made by the first wheel and by the second wheel.
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公开(公告)号：US12212257B2
公开(公告)日：2025-01-28
申请号：US18118968
申请日：2023-03-08
Applicant: Raytheon Company
Inventor： Andrew Christopher Walecka , Gary Joseph Sutton
Abstract: A Permanent Magnet Synchronous Motor (PMSM) includes a hollow cylindrical stator with stator windings and a magnetic rotor having M pole pairs arranged to rotate around a rotational axis in the stator by a rotor shaft. The stator windings are energized to generate a magnetic rotational field in dependence upon the rotational position of the magnetic rotor. Two or more analog magnetic flux sensors are positioned within the hollow cylindrical stator and arranged concentrically with respect to the rotational axis around the stator at a constant mechanical angle equal to a constant electrical angle divided by M relative to each other. The magnetic flux sensors are spaced directly from the magnetic rotor by a radial gap (X) in such a way that the magnetic flux of the magnetic rotor impinges on the analog magnetic flux sensors without obstruction to output two or more sinusoidal signals with phases separated by the constant electrical angle that can be evaluated to determine the rotational position of the magnetic rotor. Sensor integration eliminates the additional sense magnet, Hall sensors and CCA positioned external to the motor housing to provide a smaller motor package at lower cost. Integration also facilitates the use of the PMSM in high-temperature or high-shock (high g) environments such as gun-launched guided projectiles or hypersonic missiles.
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公开(公告)号：US12209858B2
公开(公告)日：2025-01-28
申请号：US17613679
申请日：2020-05-20
Applicant: Sensima Inspection Sàrl
Inventor： Marc Lany , Alain Berthoud , Julien Hubleur , Bernard Revaz , Gilles Santi , Frédéric Monnier
Abstract: The invention relates to a rotatable inspection device (10) for inspection of the integrity of an axisymmetric portion (210) of parts (200), for example a threaded tube (200). The rotatable inspection device (10) includes a measuring unit (20) configured to be rotated about the symmetry axis of the axisymmetric portion (210). The measuring unit (20) comprises: i) a radially movable measuring structure (22) comprising a defect detection sensor (30), wherein said measuring structure (22) is configured to urge the defect detection sensor (30) against said portion (210) to be inspected; ii) an electronic device (43) for processing and transmitting the signal measured by the defect detection sensor (30) along said portion (210), and iii) a measuring unit support (50) supporting the radially movable measuring structure (22). The electronic device (43) is configured to wirelessly transmit the processed signal to a remote monitoring unit (300).
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