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公开(公告)号：US20240136861A1
公开(公告)日：2024-04-25
申请号：US18534124
申请日：2023-12-08
Applicant: Spark Connected LLC
Inventor： Petru Emanuel Stingu , Kenneth Moore , Yulong Hou , Ruwanga Dassanayake
IPC: H02J50/12 , A47B21/06 , G01R33/00 , G01R33/02 , G01R33/07 , G01R33/10 , G06F1/18 , H02J50/00 , H02J50/10 , H02J50/60 , H02J50/80 , H02M3/158
CPC classification number: H02J50/12 , A47B21/06 , G01R33/0094 , G01R33/0206 , G01R33/07 , G01R33/10 , G06F1/189 , H02J50/005 , H02J50/10 , H02J50/60 , H02J50/80 , H02M3/1582 , A47B2021/066 , A47B2200/008
Abstract: In an embodiment, a method includes wirelessly transmitting power using a transmitter LC tank of a wireless power transmitter, wirelessly receiving power from the transmitter LC tank using a receiver LC tank of a wireless power receiver, interrupting wirelessly transmitting power for a slot period, during the slot period, measuring a receiver signal associated with the receiver LC tank, transmitting receiver data based on the measured receiver signal to the wireless power transmitter, determining a power loss associated with the wirelessly transmitting power based on the measured receiver signal and detecting a metallic object based on the determined power loss.
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公开(公告)号：US11881720B2
公开(公告)日：2024-01-23
申请号：US17020546
申请日：2020-09-14
Applicant: Spark Connected LLC
Inventor： Petru Emanuel Stingu , Kenneth Moore , Yulong Hou , Ruwanga Dassanayake
IPC: A47B21/06 , G06F1/18 , H02J50/12 , H02M3/158 , H02J50/80 , H02J50/10 , H02J50/00 , H02J50/60 , G01R33/00 , G01R33/02 , G01R33/07 , G01R33/10
CPC classification number: H02J50/12 , A47B21/06 , G01R33/0094 , G01R33/0206 , G01R33/07 , G01R33/10 , G06F1/189 , H02J50/005 , H02J50/10 , H02J50/60 , H02J50/80 , H02M3/1582 , A47B2021/066 , A47B2200/008
Abstract: An electronic device, a wireless charger and a wireless charging system are disclosed. In an embodiment an electronic device includes a metal housing including electronic components of the electronic device, a recess in the metal housing, a receiver coil configured to receive wireless power, the receiver coil located in the recess outside of the metal housing and a holding structure for the receiver coil, wherein the holding structure comprises a material with a high magnetic permeability, and wherein the receiver coil is electrically connected to the electronic components inside the metal housing.
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公开(公告)号：US11733324B2
公开(公告)日：2023-08-22
申请号：US17483809
申请日：2021-09-24
Inventor： Kazuki Yamauchi , Chungwei Lin
CPC classification number: G01R33/1276 , G01R33/10
Abstract: A magnetic particle imaging system includes a field free region generator and an excited magnetic field generator. The field free region generator generates a field free line with a direction of linear extension of a field free region as a direction of extension. The excited magnetic field generator generates an excited magnetic field in the field free line generated by the field free region generator. The excited magnetic field generator includes a first excited magnetic field generation unit and a second excited magnetic field generation unit. The first excited magnetic field generation unit and the second excited magnetic field generation unit are spaced from each other in the direction of extension of the field free line.
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公开(公告)号：US11709212B2
公开(公告)日：2023-07-25
申请号：US17581684
申请日：2022-01-21
Applicant: The Regents of the University of California
Inventor： Steven M. Conolly , Patrick W. Goodwill , Daniel Hensley , Zhi Wei Tay , Bo Zheng
CPC classification number: G01R33/1276 , G01R33/10
Abstract: A pulsed magnetic particle imaging system includes a magnetic field generating system that includes at least one magnet, the magnetic field generating system providing a spatially structured magnetic field within an observation region of the magnetic particle imaging system such that the spatially structured magnetic field will have a field-free region (FFR) for an object under observation having a magnetic nanoparticle tracer distribution therein. The pulsed magnetic particle imaging system also includes a pulsed excitation system arranged proximate the observation region, the pulsed excitation system includes an electromagnet and a pulse sequence generator electrically connected to the electromagnet to provide an excitation waveform to the electromagnet, wherein the electromagnet when provided with the excitation waveform generates an excitation magnetic field within the observation region to induce an excitation signal therefrom by at least one of shifting a location or condition of the FFR. The pulsed magnetic particle imaging system further includes a detection system arranged proximate the observation region, the detection system being configured to detect the excitation signal to provide a detection signal. The excitation waveform includes a transient portion and a substantially constant portion.
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5.发明申请公开(公告)号：US20180306874A1
公开(公告)日：2018-10-25
申请号：US16068228
申请日：2017-01-06
Inventor： NICOLAS GARRAUD , WILLIAM C. PATTERSON , DAVID P. ARNOLD
IPC: G01R33/05 , G01R33/032 , G06F17/16 , G06F17/14
CPC classification number: G01R33/05 , G01R33/02 , G01R33/032 , G01R33/10 , G05D1/02 , G06F17/147 , G06F17/16
Abstract: An exemplary system for determining field characteristics using one dimension of a vector field utilizes a field measurement apparatus configured to acquire measurement data of the vector field corresponding to one dimension of the vector field and at least one computing device configured to simultaneously solve a set of equations characterizing the vector field by composing the set of equations into discrete counterparts, obtaining the measurement data of the vector field as input data for the discrete counterparts to the set of equations, and computing output data satisfying the discrete counterparts to the set of equations in at least one vector dimension that differs from the vector dimension of the input data using a matrices solution.
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Patent Agency Ranking
公开(公告)号：US20180017639A1
公开(公告)日：2018-01-18
申请号：US15648401
申请日：2017-07-12
Applicant: Patrick W. Goodwill
Inventor： Patrick W. Goodwill
CPC classification number: G01R33/1276 , A61B5/0515 , G01N27/72 , G01R33/0213 , G01R33/10
Abstract: A Magnetic Particle Imaging (MPI) system with a magnet configured to generate a magnetic field with a field free line, the magnet integrated with a flux return designed so that a flux path at approximately the center of the field-free line has a first reluctance and a second flux path distal from the center of the field-free line has a second reluctance, and the second reluctance is lower than the first reluctance to facilitate a high fidelity magnetic field and high fidelity field free line.
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7.发明授权公开(公告)号：US09709375B2
公开(公告)日：2017-07-18
申请号：US13930159
申请日：2013-06-28
Applicant: Samsung Electronics Co., Ltd.
Inventor： Seong Eun Kim , Yong Kim , Eung Sun Kim , Hyun Gi Ahn , Ji Hyun Yoon
CPC classification number: G01B7/003 , G01C21/206 , G01R33/10 , H04W4/04
Abstract: Provided are a method and an apparatus for creating a magnetic field map that extracts magnetic field information of a building from floor plan information of the building. The magnetic field map of the building may be generated based on the floor plan information and the magnetic field information.
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公开(公告)号：US20170089706A1
公开(公告)日：2017-03-30
申请号：US14864675
申请日：2015-09-24
Applicant: Microsoft Technology Licensing, LLC
Inventor： Flavio Protasio Ribeiro , Anatoly Churikov
CPC classification number: G01C21/20 , G01C21/206 , G01R33/10 , G06F17/16 , G06K9/00 , G06K9/00342
Abstract: Examples of arrays of magnetometers that can be used as or as part of an inertial measurement unit (IMU) are disclosed herein. Various methods for using such arrays in order to obtain highly precise and locationally unique data, which can be used to correct for drift effects, are also disclosed. In certain embodiments, the Jacobian matrix of the magnetic field is computed from the magnetometer measurements. This Jacobian matrix data can be used to generate a magnetic field map for a particular environment and/or to locate position, velocity, and acceleration of the IMU by referencing such a magnetic field map.
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公开(公告)号：US20170067854A1
公开(公告)日：2017-03-09
申请号：US14847751
申请日：2015-09-08
Applicant: Hitachi, Ltd
Inventor： Isao Hoda , Hua Zeng , Masayoshi Takahashi , Hiroki Funato
CPC classification number: G01N27/82 , B23K11/11 , B23K31/125 , G01N27/72 , G01N27/87 , G01N27/9046 , G01R33/10 , G01R33/12
Abstract: An apparatus and method for inspecting the quality of a weld under test in a structure having a plurality of spaced apart welds. Two probes are placed on opposite sides of the structure so that a current path is formed through the weld under test. The probes are energized with alternating current at a known frequency. The magnetic flux generated from the current flow through the probes and at least one of the spaced apart welds is then measured and subsequently compared with magnetic flux data previously determined and representing weld quality.
Abstract translation: 一种用于在具有多个间隔开的焊缝的结构中检查被测焊缝质量的装置和方法。 两个探针放置在结构的相对两侧，使得通过被测焊缝形成电流路径。 探头以已知频率的交流电通电。 然后测量从流过探头的电流产生的磁通量和至少一个间隔开的焊缝，并随后与先前确定的并表示焊接质量的磁通量数据进行比较。
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公开(公告)号：US09523748B2
公开(公告)日：2016-12-20
申请号：US14992682
申请日：2016-01-11
Applicant: ENDOMAGNETICS LTD
Inventor： Simon Richard Hattersley , Peter Georg Laitenberger
CPC classification number: G01R33/1276 , A61B5/05 , G01N27/72 , G01N27/745 , G01R33/0213 , G01R33/10
Abstract: A probe for detecting magnetic particles. In one embodiment, the probe includes: a cylindrical probe core having a first end and a second end, the cylindrical probe core defining two channels for containing coils of wire, one of the channels being adjacent the first end of the cylindrical probe core; two sense coils, one each of the sense coils being located in a respective one of the channels; and two drive coils, one each of the drive coils being co-located with the respective sense coil in a respective one of the channels.
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