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公开(公告)号:US12007453B2
公开(公告)日:2024-06-11
申请号:US16862919
申请日:2020-04-30
申请人: HI LLC
发明人: Jamu Alford , Michael Henninger , Dakota Blue Decker , Stephen Garber , Jeffery Kang Gormley , Scott Michael Homan , Teague Lasser , Micah Ledbetter , Jerry Leung , Hooman Mohseni , Ethan Pratt , Scott Jeremy Seidman , Benjamin Siepser
IPC分类号: H05K9/00 , A61B5/00 , A61B5/05 , A61B5/245 , G01R33/00 , G01R33/025 , G01R33/032 , G01R33/09 , G01R33/26 , H01F7/20 , H01F27/28 , H01F27/36 , H05K1/18
CPC分类号: G01R33/0082 , A61B5/0077 , A61B5/05 , A61B5/245 , A61B5/4064 , A61B5/6802 , A61B5/6803 , G01R33/0011 , G01R33/0017 , G01R33/0047 , G01R33/007 , G01R33/025 , G01R33/032 , G01R33/095 , G01R33/26 , H01F7/20 , H01F27/2804 , H01F27/36 , H05K1/18 , H05K9/0071 , A61B2562/0223 , A61B2562/04 , A61B2562/18 , A61B2562/222 , A61B2562/227 , H01F27/2866 , H05K2201/10151
摘要: A magnetic field generator includes a plurality of conductive windings comprising a first conductive winding arranged in a first plane and a second conductive winding arranged in a second plane that is substantially parallel to the first plane. The plurality of conductive windings are configured to generate, when supplied with a drive current, a first component of a compensation magnetic field. The first component of the compensation magnetic field is configured to actively shield a magnetic field sensing region located between the first conductive winding and the second conductive winding from ambient background magnetic fields along a first axis that is substantially orthogonal to the first plane and the second plane.
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公开(公告)号:US11971461B2
公开(公告)日:2024-04-30
申请号:US17945615
申请日:2022-09-15
申请人: TDK CORPORATION
CPC分类号: G01R33/093 , G01R33/0047
摘要: A magnetic sensor includes an insulating layer including a protruding surface, a first MR element, and a second MR element. The protruding surface includes a first curved surface portion. The first curved surface portion includes a first portion including an upper end portion of the protruding surface, and a second portion continuous with the first portion at a position away from the upper end portion of the protruding surface. When the shape of the protruding surface is regarded as a function Z, the mean value of the absolute value of a second derivative Z″ of the function Z corresponding to the first portion is smaller than the mean value of the absolute value of the second derivative Z″ of the function Z corresponding to the second portion.
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公开(公告)号:US20240133981A1
公开(公告)日:2024-04-25
申请号:US18047759
申请日:2022-10-18
IPC分类号: G01R33/07 , G01R19/00 , G01R33/00 , H01L23/495
CPC分类号: G01R33/072 , G01R19/0092 , G01R33/0005 , G01R33/0047 , G01R33/077 , H01L23/49503
摘要: A current sensor arrangement includes a first conductor structure extending in a first direction and configured to carry a first current along the first direction; a second conductor structure extending in a second direction perpendicular to the first direction and configured to carry a second current along the second direction; and a magnetic field sensor arranged between the first conductor structure and the second conductor structure and configured to receive a first magnetic field produced by the first current and a second magnetic field produced by the second current. The first conductor structure and the second conductor structure overlap with the magnetic field sensor in a third direction that is perpendicular to the first and second directions. The magnetic field sensor includes a first sensor element sensitive to the first magnetic field and a second sensor element sensitive to the second magnetic field.
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公开(公告)号:US11927652B1
公开(公告)日:2024-03-12
申请号:US18384882
申请日:2023-10-29
发明人: Jie Tian , Haoran Zhang , Bo Zhang , Yu An
CPC分类号: G01R33/1276 , G01R33/0041 , G01R33/0047
摘要: A structure, a method, and an electronic device for multi-coil handheld magnetic particle imaging (MPI) are provided. The structure for multi-coil handheld MPI includes a processing device, a control device, an imager, a gradient and scanning module, an excitation and correction module, and a detection module, where the gradient and scanning module includes a first circular coil pair and a second circular coil pair; the excitation and correction module includes a circular excitation and correction coil; and the detection module includes a circular detection coil. The structure for multi-coil handheld MPI focuses the imaging region in a specific part, improving the MPI accuracy, and features small volume, simple structure, and low power consumption.
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公开(公告)号:US20240019504A1
公开(公告)日:2024-01-18
申请号:US18256351
申请日:2021-12-06
发明人: Takashi IMANAKA
CPC分类号: G01R33/0076 , G01R33/0047 , G01R33/096
摘要: A magnetic sensor includes an insulating substrate, at least one magnetoresistive element, a conductor, and an encapsulant. The conductor electrically connects the magnetoresistive element to an external circuit. The encapsulant encapsulates not only the magnetoresistive element entirely but also the insulating substrate and the conductor at least partially. The magnetoresistive element includes a magnetoresistive film and an electrode. The magnetoresistive film is formed on a first surface of the insulating substrate. The electrode is provided on the first surface of the insulating substrate. One end of the electrode is electrically connected to the magnetoresistive film. The other end of the electrode is electrically connected to a first end portion of the conductor. The encapsulant exposes a second surface of the insulating substrate and a second end portion of the conductor from mutually different surfaces.
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公开(公告)号:US11867779B2
公开(公告)日:2024-01-09
申请号:US17945397
申请日:2022-09-15
申请人: TDK CORPORATION
CPC分类号: G01R33/093 , G01R33/0047
摘要: A magnetic sensor includes an insulating layer, a first MR element, and a second MR element. The insulating layer includes a first layer and a second layer, and also includes first and second inclined surfaces formed across the first layer and the second layer. Each of the first and second MR elements includes a magnetization pinned layer and a free layer. The magnetization pinned layer and the free layer of the first MR element are disposed on the first inclined surface. The magnetization pinned layer and the free layer of the second MR element are disposed on the second inclined surface.
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公开(公告)号:US20240003989A1
公开(公告)日:2024-01-04
申请号:US18449414
申请日:2023-08-14
发明人: Taekeun KIM , Kihun EOM , Intae JUN , Kihoon KANG , Kihong MIN , Gunhee PARK , Jeonggyun PARK
CPC分类号: G01R33/0023 , G01R33/02 , G01R33/0047
摘要: An electronic device may include: a magnetic sensor configured to identify the intensity of a magnetic field; a wireless communication circuit; a processor; and memory electrically connected to the magnetic sensor, the wireless communication circuit, and the processor, and storing instructions. The processor may be configured so that the electronic device: uses the magnetic sensor to identify a plurality of intensities of the magnetic field during a first period; identifies, on the basis of the plurality of intensities, whether a reference intensity has been updated; identifies a first state of the electronic device when the reference intensity has been updated, the first state being identified on the basis of a comparison result between the latest intensity among the plurality of intensities and the updated reference intensity; and performs a function according to the identified first state. Various other embodiments identified through the specification are possible.
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公开(公告)号:US11828819B2
公开(公告)日:2023-11-28
申请号:US18046222
申请日:2022-10-13
发明人: Ravi Vig , William P. Taylor , Andreas P. Friedrich , Paul A. David , Marie-Adelaide Lo , Eric Burdette , Eric G. Shoemaker , Michael C. Doogue
CPC分类号: G01R33/0047 , G01B7/30 , G01D5/145 , G01R15/202 , G01R33/0011 , G01R33/072 , H01L2224/48247 , H01L2924/19105
摘要: A magnetic field sensor includes a lead frame, a passive component, semiconductor die supporting a magnetic field sensing element and attached to the lead frame, a non-conductive mold material enclosing the die and at least a portion of the lead frame, and a ferromagnetic mold material secured to a portion of the non-conductive mold material. The lead frame has a recessed region and the passive component is positioned in the recessed region. The ferromagnetic mold material may comprise a soft ferromagnetic material to form a concentrator or a hard ferromagnetic material to form a bias magnet.
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公开(公告)号:US11733320B2
公开(公告)日:2023-08-22
申请号:US17412989
申请日:2021-08-26
申请人: HI LLC
发明人: Stephen Garber , Jerry Leung , Ethan Pratt , Hooman Mohseni , Jamu Alford , Dakota Blue Decker , Jeffery Kang Gormley , Michael Henninger , Scott Michael Homan , Teague Lasser , Micah Ledbetter , Scott Jeremy Seidman , Benjamin Siepser
IPC分类号: G01R33/00 , G01R33/032 , G01R33/26 , G01R33/09 , H01F7/20 , H01F27/28 , H01F27/36 , H05K1/18 , G01R33/025 , A61B5/05 , A61B5/00 , A61B5/245
CPC分类号: G01R33/0082 , A61B5/0077 , A61B5/05 , A61B5/245 , A61B5/4064 , A61B5/6802 , A61B5/6803 , G01R33/007 , G01R33/0011 , G01R33/0017 , G01R33/0047 , G01R33/025 , G01R33/032 , G01R33/095 , G01R33/26 , H01F7/20 , H01F27/2804 , H01F27/36 , H05K1/18 , A61B2562/0223 , A61B2562/04 , A61B2562/18 , A61B2562/222 , A61B2562/227 , H01F27/2866 , H05K2201/10151
摘要: An exemplary controller may include a single clock source configured to generate a single clock signal used to drive one or more components within a plurality of magnetometers and a plurality of differential signal measurement circuits configured to measure current output by a photodetector of each of the plurality of magnetometers.
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公开(公告)号:US20190204394A1
公开(公告)日:2019-07-04
申请号:US16333882
申请日:2017-08-22
CPC分类号: G01R33/0047 , G01R33/00 , G01R33/04
摘要: The invention provides a pendulum system including a pendulum connected to a connector, the system including wires connecting the pendulum to the connector, which wires are connected together in a twisted cable, the twisted cable presenting a spiral central portion generally shaped as a cone having its apex connected to the connector so as to be the portion of the spiral that is closest to the pivot point of the pendulum. The invention also provides a method of fabricating such a pendulum system.
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