-
公开(公告)号：US12104899B2
公开(公告)日：2024-10-01
申请号：US17568729
申请日：2022-01-05
发明人： Yu-Pin Wang
摘要： A lens positioning device including a lens carrier, a housing, three pairs of memory alloy wires and three displacement detecting units is provided. The three pairs of memory alloy wires are used to control the displacement of the lens carrier in three directions, respectively. Each of the displacement detecting units includes a magnetic element and a magnetic field sensing element. The magnetic field sensing element is arranged corresponding to the magnetic element to sense change of the magnetic field of the magnetic element along each of the three directions when the lens carrier moves. One magnetic element of any one of the three displacement detecting units is arranged at a position that can induce the corresponding magnetic field sensing element and does not interfere with the magnetic field sensing elements of the other two of the three displacement detecting units.
-
公开(公告)号：US12103624B2
公开(公告)日：2024-10-01
申请号：US16985184
申请日：2020-08-04
申请人： SHIMANO INC.
发明人： Yuki Sakagawa , Toyoto Shirai
摘要： A rider-posture changing device for a human-powered vehicle comprises a first member, a second member, a first detector, a second detector, and a controller. The first member extends in a longitudinal direction. The second member is configured to be movable relative to the first member in the longitudinal direction. The first detector is configured to detect first information indicating whether the second member reaches an absolute position or not. The second detector is configured to detect second information indicating a movement distance of the second member from a reference position in the longitudinal direction. The controller is configured to obtain a current position of the second member relative to the first member based on the second information and the reference position. The controller is configured to store the absolute position as the reference position in accordance with the first information.
-
公开(公告)号：US20240310190A1
公开(公告)日：2024-09-19
申请号：US18602584
申请日：2024-03-12
发明人： Dieter SUESS , Johannes GUETTINGER , Armin SATZ
摘要： A device includes a magnetic layer and a guiding structure arranged over the magnetic layer and configured to sequentially transfer a skyrmion in the magnetic layer along a transfer pattern in response to a rotating magnetic field. The device further includes a plurality of magnetoresistive elements arranged along the transfer pattern and configured to detect a position of the skyrmion in the transfer pattern. The device is configured to determine a number of rotations of the rotating magnetic field based on the detected position of the skyrmion in the transfer pattern.
-
公开(公告)号：US12092455B2
公开(公告)日：2024-09-17
申请号：US17759744
申请日：2021-01-27
申请人： MINEBEA MITSUMI Inc.
发明人： Takeshi Sakieda , Katsunori Saito , Yujin Ishi
摘要： The influence of a leakage magnetic flux from a magnet on a magnetic sensor configured to detect a magnetic flux from the permanent magnet is reduced. An absolute encoder includes a first magnet provided at a leading end side of a first worm gear part, a first angle sensor configured to detect a rotation angle of the first worm gear part corresponding to a change in a magnetic flux generated from the first magnet, a second magnet provided at a leading end side of a second worm wheel part, a second angle sensor configured to detect a rotation angle of the second worm wheel part corresponding to a change in a magnetic flux generated from the second magnet, and a gear base part configured to surround at least a part of a periphery of the first angle sensor and the second angle sensor.
-
公开(公告)号：US20240271921A1
公开(公告)日：2024-08-15
申请号：US18643946
申请日：2024-04-23
发明人： Ryo INOUE , Ikuma MUROKITA , Kenichi SADAKANE , Masanobu HARADA , Yuji ARINAGA , Yasuhiro MATSUTANI
IPC分类号： G01B7/30 , G01D5/16 , G05B19/4155 , H01M10/0585 , H01M10/46 , H02J7/00
CPC分类号： G01B7/30 , G01D5/16 , G05B19/4155 , H01M10/0585 , H01M10/46 , G05B2219/34013 , H02J7/00712
摘要： An encoder includes: an optical module that detects angular position information indicating an angular position of a rotating disk within one rotation thereof; a magnetic detecting unit that detects multi-rotation information indicating the number of rotations of the disk; a battery that supplies a power to the magnetic detecting unit when an external power is not supplied to the encoder; and a connector that connects connection terminals of the battery to a substrate to which at least one of the optical module and the magnetic detecting unit is connected, via solders in contact with the connection terminals.
-
公开(公告)号：US20240247926A1
公开(公告)日：2024-07-25
申请号：US18419050
申请日：2024-01-22
摘要： A magnetic angle switch circuit including a magnetic sensor circuit configured to determine a sensor signal indicative of an angle of a magnetic field; and a switch circuit configured to compare the sensor signal against a threshold signal indicative of a predefined angular threshold, and output a binary signal indicative of whether the angle of the magnetic field exceeds or falls below the predefined angular threshold.
-
公开(公告)号：US20240230376A9
公开(公告)日：2024-07-11
申请号：US18404023
申请日：2024-01-04
申请人： TDK CORPORATION
发明人： Keisuke UCHIDA , Yongfu CAI
IPC分类号： G01D5/16
CPC分类号： G01D5/16
摘要： A position detection device includes a magnet that generates a magnetic field to be detected, and a magnetic sensor. The magnetic sensor detects the magnetic field to be detected and generates a detection value corresponding to the position of the magnet. The magnetic field to be detected has a first direction that changes within a first plane, at a reference position in the first plane. The magnetic sensor includes four MR elements. Each of the MR elements includes a first magnetic layer having first magnetization that can change in direction within a second plane corresponding to the each of the MR elements. The first plane and the second plane intersect at a dihedral angle α other than 90°. A detection value depends on the direction of the first magnetization.
-
公开(公告)号：US20240210213A1
公开(公告)日：2024-06-27
申请号：US18597013
申请日：2024-03-06
申请人： TDK CORPORATION
摘要： A position detection device includes a first position detector, a second position detector, and a signal generator. The first position detector includes a first magnetic field generation unit, a second magnetic field generation unit, and a first magnetic sensor. The second position detector includes a third magnetic field generation unit, a fourth magnetic field generation unit, and a second magnetic sensor. The positions of the second and fourth magnetic field generation units vary in response to variations in a detection-target position. The signal generator generates a position detection signal, which is the sum of a first detection signal generated by the first magnetic sensor and a second detection signal generated by the second magnetic sensor. Each of the first and second position detectors includes a bias magnetic field generation unit.
-
公开(公告)号：US12003121B2
公开(公告)日：2024-06-04
申请号：US17389124
申请日：2021-07-29
申请人： Apple Inc.
发明人： Chad A. Bossetti , Christopher S. Graham , David W. Ritter , Todd K. Moyer , Steven G. Herbst , Shimon Elkayam , Nileshbhai J. Shah , Stephen C. Terry , Zaki Moussaoui
摘要： A wireless charging mat and method of operating the same. The wireless charging mat includes a detection system configured to determine a location and an orientation of an electronic device on the wireless charging mat. The location and orientation are determined based on detected locations of one or more structural features of the electronic device. The wireless charging mat is operated according to the detected location and orientation.
-
公开(公告)号：US11982546B2
公开(公告)日：2024-05-14
申请号：US17435621
申请日：2020-03-03
发明人： Yuki Suyama , Masataka Tanahashi
摘要： Provided is a position detecting device with which it is possible to suppress a concentration of stress. A position detecting device is provided with a lever member which rotates about a central axis of rotation O, a magnet unit, which is one example of a detected portion, that rotates about the central axis of rotation O as the lever member rotates and a magnetic detecting element, which is one example of a rotation detecting unit, that detects the rotation of the magnet unit. The lever member is provided with a thick plate portion, positioned in a location close to the central axis of rotation O, and a thin plate portion which is positioned farther from the central axis of rotation O than the thick plate portion, and which is formed thinner than the thick plate portion.
-
-
-
-
-
-
-
-
-
搜索结果
533 条记录 (耗时 0.024 秒)
