Hall Effect Patents (Class 324/207.2)
  • Patent number: 11567148
    Abstract: An object of the present invention is to reduce leakage magnetic flux in a magnetic sensor provided with a sensor substrate and an external magnetic member. A magnetic sensor includes: a sensor substrate having an element forming surface on which magnetic sensing elements are formed, first and second side surfaces, and a back surface; a first external magnetic member provided between the first and second magnetic sensing elements; and a second external magnetic member having first and second parts and covering the first side surface and second side surface, respectively. The first and second parts of the second external magnetic member protrude from the element forming surface. According to the present invention, since the first and second parts of the second external magnetic member protrude from the element forming surface, leakage of magnetic flux between the first and second external magnetic members is reduced.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: January 31, 2023
    Assignee: TDK CORPORATION
    Inventor: Chengbin Lin
  • Patent number: 11561079
    Abstract: Magnetic sensor assembly 1 has first member 10 having first to third magnetic sensors 13A to 13C, and second member 20 having first to third magnets 22A to 22C. Second member 20 can be moved in X and Y directions and can be rotated about a Z axis relative to first member 10. Output of first to third magnetic sensors 13A to 13C monotonously changes. A change of the output of first magnetic sensor and a change of the output of second magnetic sensor are different from each other. First to third magnets are positioned on first to third straight lines L1 to L3. A first angle that is formed between first straight line L1 and X axis, a second angle that is formed between second straight line L2 and X axis, and a third angle that is formed between third straight line L3 and Y axis are same.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: January 24, 2023
    Assignee: TDK Corporation
    Inventors: Kentaro Harada, Tsuyoshi Umehara
  • Patent number: 11555714
    Abstract: A method for determining a relative angular position between two parts about an axis of rotation (A), implementing a magnetized body (10), in the shape of an angular curved sector about the axis of rotation (A), characterized in that the magnetization plane of the magnetized body (PM) is parallel to the axis of rotation (A), for a sensor system having such a magnetized body, and to a method for manufacturing such a magnetized body.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: January 17, 2023
    Assignee: ELECTRICFIL AUTOMOTIVE
    Inventors: Nikola Jerance, Harijaona Lalao Rakotoarison
  • Patent number: 11543468
    Abstract: A Hall element that exhibits an anomalous Hall effect includes a substrate and a thin film as a magneto-sensitive layer on the substrate, the thin film having a composition of FexSn1-x, where 0.5?x<0.9. The thin film may be made of an alloy of Fe and Sn, and a dopant element. The dopant element may be a transition metal element that modulates spin-orbit coupling or magnetism. The dopant element may be a main-group element that has a different number of valence electrons from Sn and modulates carrier density. The dopant element may be a main-group element that modulates density of states.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: January 3, 2023
    Assignee: TOHOKU UNIVERSITY
    Inventors: Atsushi Tsukazaki, Kohei Fujiwara
  • Patent number: 11543311
    Abstract: A sensor for at least detecting steering torque of a steel steering column includes a magnetic field generating element which is configured to generate a magnetic field. The magnetic field penetrates the steering column so as to magnetize a steel material thereof. The sensor also includes a magnetic field detection element which is configured to detect a magnetic field change caused by a magnetoelastic effect of the magnetized steel material of the steering column when the steering column is subjected to torque stress. An output signal of the magnetic field detection element characterizes steering torque. The sensor also includes a base plate bearing the magnetic field generating element and the magnetic field detection element. The base plate is spaced from and separate from the steel steering column. The magnetic field generating element and the magnetic field detection element are directly mounted on the base plate.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: January 3, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Adrian Kussmann, Andreas Kurz, Christoph Ossmann, Guotao Chen, Michael Kleinknecht, Mirko Scheer, Rolando Doelling, Sina Fella
  • Patent number: 11512981
    Abstract: A speed sensor arrangement, implemented in particular as a wheel rotation speed sensor arrangement, including: a sensor and a ferromagnetic encoder. The sensor has at least one magnetic field sensor element and a signal processing circuit. The speed sensor arrangement having a permanent magnet and the magnetic field provided by the permanent magnet is modulated by the ferromagnetic encoder at least during a movement of the encoder and the magnetic field sensor element of the sensor detects this modulated magnetic field. The magnetic field sensor element is implemented as a GMR sensor element or as a TMR sensor element and the speed sensor arrangement is implemented such that the permanent magnet is arranged at a defined minimum distance from the magnetic field sensor element.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: November 29, 2022
    Inventors: Dániel Tóka, Gábor Dernóczi, Henrik Bacsák, Tillmann Krauss
  • Patent number: 11500038
    Abstract: An example of a sensor for determining a direction of a magnetic field comprises at least one magnetoresistive sensor element for determining the direction of the magnetic field, and at least one further sensor element of another type which is suitable for determining the direction of the magnetic field.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: November 15, 2022
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Granig, Manuel Gillinger
  • Patent number: 11500574
    Abstract: The present disclosure relates to a storage detection module group for assisting a storage device to realize smart storage. The storage device includes at least one storage unit, and the storage detection module group includes: at least one detection module mounted on at least one storage unit of the storage device and configured to detect the storage state of at least one storage unit; a communication module configured to send a request for updating storage information of an article to the server, in order to allow the server to obtain a updated storage information of an article according to the request for updating storage information of an article, when the detection module detects that the storage state of at least one storage unit is changed; a power module configured to supply an operating voltage for the detection module and the communication module.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: November 15, 2022
    Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
    Inventors: Xianxu Xia, Gang Wang, Yin Wang, Lan Chen, Ronghui Qian
  • Patent number: 11499842
    Abstract: A position detection system for detecting a movement of a machine includes a first and a second position sensor and an evaluation device. The first position sensor is configured to detect a change in a first magnetic field generated by the movement of the machine. The second position sensor is configured to detect a change in a second magnetic field, which differs from the first magnetic field and is generated by the movement of the machine. A detection result from the second position sensor has a lower resolution of a position of an element of the machine to be determined than a detection result from the first position sensor. The evaluation device is configured to evaluate the detection result from the first position sensor and/or the detection result from the second position sensor to determine the position of the element of the machine.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: November 15, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Bund, Stephanie Stollberger
  • Patent number: 11486733
    Abstract: An integrated rotation-angle sensor unit in a measuring system for rotation angle determination, with a shaft that is rotatable about an axis of rotation with a transmitter, The sensor unit has a semiconductor layer with a top surface that can be arranged perpendicular to the axis of rotation and has a bottom surface, and two monolithic Hall sensor systems are implemented in the semiconductor layer. Each Hall sensor system has at least a first Hall sensor, a second Hall sensor, and a third Hall sensor, and the three Hall sensors of the first Hall sensor system are arranged on a first circle that is parallel to the top surface of the semiconductor layer and can be arranged concentrically around the axis of rotation.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: November 1, 2022
    Assignee: TDK-Micronas GmbH
    Inventors: Yan Bondar, Marcus Christian Meyer, Hans Christian Paul Dittmann
  • Patent number: 11471117
    Abstract: Multiposition collimation devices and x-ray imaging systems, which include the multiposition collimation devices, are provided. The multiposition collimation device includes a collimator housing and a collimator plate constructed to at least partially block the passage of x-rays. The collimator plate is movable relative to the collimator housing to a first position, corresponding to a first x-ray detector size, and a second position, corresponding to a second x-ray detector size.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: October 18, 2022
    Assignee: Dentsply Sirona Inc.
    Inventors: Mark Abramovich, Aaron Bratslavsky, Charles Smith, Stan Mandelkern, Liang Hwang
  • Patent number: 11467188
    Abstract: A current sensor arrangement includes a first conductor configured to conduct a first portion of a primary current in a current flow direction; a second conductor configured to conduct a second portion of the primary current in the current flow direction; and a magnetic sensor. The first and second conductor are coupled in parallel. The first current produces a first magnetic field as it flows through the first conductor and the second current produces a second magnetic field as it flows through the second conductor. The first conductor and the second conductor are separated from each other in a first direction that is orthogonal to the current flow direction, thereby defining a gap. The magnetic sensor is arranged in the gap such that the first conductor is arranged over a first portion of the magnetic sensor and the second conductor is arranged under a second portion of the magnetic sensor.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: October 11, 2022
    Inventors: Guenter Schwarzberger, Sebastian Maerz, Wolfgang Raberg
  • Patent number: 11428544
    Abstract: Apparatuses and sensor systems are described with magnetoresistive sensor configurations. The method of detecting a displacement of a magnetic component includes monitoring, via a position sensor operating in a low-powered mode, a magnetic field emitted by a magnetic component. The monitored characteristics of the magnetic field vary based at least in part on a displacement of the magnetic component. The method also includes determining, via the position sensor, whether the monitored characteristics of the magnetic field satisfy an activation criteria. The method further includes increasing the power of the position sensor to a high-powered mode to determine the displacement of the magnetic component upon determining that the monitored characteristics of the magnetic field satisfy the activation criteria. Corresponding position sensing systems are also provided.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: August 30, 2022
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: William James McGraw, Fred Hintz, Jason M. Chilcote
  • Patent number: 11401013
    Abstract: A system and method of interrupting power to an ignition coil in a marine engine during an actuation of a shift cable for transitioning between gears is provided. The method includes connecting a sensor assembly to the shift cable. The sensor assembly includes magnets, a Hall sensor for magnetic sensing, and a control circuit. The magnets are configured to pass by the Hall sensor, which senses a change in polarity of the magnets. The control circuit is configured to interrupt power to the ignition coil. The method includes sensing a polarity of the magnets; determining if the polarity of the magnets has changed; and sending a signal to the control circuit based on the change in polarity of the magnets, which causes an output interrupting power to the ignition coil.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: August 2, 2022
    Inventor: Jacob Marsden
  • Patent number: 11391697
    Abstract: A magnetic body inspection device (100) is provided with a magnetic field application unit (1) configured to apply a magnetic field to a magnetic body (W) to be inspected in advance to rectify the magnitude and orientation of magnetization in the magnetic body (W), and a detection unit (2) configured to output a detection signal based on the magnetic field in the magnetic body to which the magnetic field application unit has been applied or a change in the magnetic field. The magnetic application unit includes magnets (11) arranged such that pole faces (Pf) of the same polarity are opposed to each other on both sides of the magnetic body.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: July 19, 2022
    Assignee: Shimadzu Corporation
    Inventor: Kenji Iijima
  • Patent number: 11371862
    Abstract: Angular position sensor system comprising: a cylindrical magnet rotatable about a rotation axis; and an angular position sensor device comprising: a substrate comprising a plurality of magnetic sensitive elements configured for measuring a first magnetic field component in a first direction and a second magnetic field component in a second direction perpendicular to the first direction; and a processing circuit configured for calculating the angular position; the sensor device being oriented such that the first direction is oriented in a circumferential direction, and the second direction is either parallel or orthogonal to the rotation axis; the sensor device being located at a predefined position where a magnitude of a third magnetic field component orthogonal to the first and second magnetic field component is negligible over the 360° angular range.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: June 28, 2022
    Assignee: MELEXIS TECHNOLOGIES SA
    Inventors: Nicolas Dupre, Lionel Tombez, Gael Close, Yves Bidaux, David Goyvaerts
  • Patent number: 11372439
    Abstract: A pedal apparatus for a vehicle includes a rotary arm provided in a pedal housing and configured to rotate with respect to a rotational axis by an operating force applied to a pedal pad; a magnet whose position is changed as the rotary arm rotates; a position detector configured for detecting a position of the rotary arm as the rotary arm rotates. The position detector includes: a sensor configured for sensing a strength of a magnetic field generated by the magnet; and a plurality of shield portions arranged to have different distances from the magnet, shielding the magnetic field generated by each of the magnet from an external magnetic field source.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: June 28, 2022
    Assignee: SL Corporation
    Inventors: Changwen An, Taejo Kim
  • Patent number: 11365986
    Abstract: An electronic device includes a first part. The electronic device also includes a second part that is configured to move with respect to the first part. The electronic further device includes a magnetic member that is disposed on one of the first part and the second part. Additionally, the electronic device includes a sensor that is disposed on the other one of the first part and the second part and facing the magnetic member. The magnetic member includes a body extending in a movement direction of the second part and magnets respectively disposed at both ends of the magnetic member such that different polarities are close to each other.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: June 21, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Junhyuk Kim, Hoyoung Jeong, Myunghoon Kwak, Jaedeok Lim, Gyuyeong Cho, Soyoung Lee, Hyunju Hong
  • Patent number: 11359937
    Abstract: The present disclosure is of a sensing mechanism for sensing rotation movement around a rotation axis, including: a magnet; and a magnetic sensor configured to detect a magnetic flux of the magnet and to determine a relative shift between the magnet and the magnetic sensor based on change in the detected magnetic flux, wherein the magnet is shaped such that a cross section of the magnet has a width that increases from a point substantially at a center of the magnet towards each end of the magnet, thereby increasing a range of detectable change in the magnetic flux and increasing a corresponding detectable range of the relative shift between the magnet and the magnetic sensor.
    Type: Grant
    Filed: September 5, 2020
    Date of Patent: June 14, 2022
    Assignee: Corephotonics Ltd.
    Inventors: Itay Yedid, Ephraim Goldenberg, Gil Bachar, Gal Barak, Yiftah Kowal
  • Patent number: 11333598
    Abstract: The material degradation monitoring system includes a base plate; a test chamber located on the base plate; a material holding unit located on the base plate and spaced apart from the test chamber, the material holding unit being capable of holding at least one material to be tested; a material transfer unit located proximate to the material holding unit and test chamber; and a controller that directs the transfer unit to move the material holding unit to the test chamber.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: May 17, 2022
    Assignee: UNITED ARAB EMIRATES UNIVERSITY
    Inventors: Waleed Khalil Ahmed, Muthanna Ahmed Aziz
  • Patent number: 11333527
    Abstract: A screening system for a magnetic rotary-encoder sensor system in an environment of a machine including a magnetic noise field, wherein the rotary-encoder sensor system comprises a magnetic sensor, a pole wheel, and preferably a pole-wheel carrier, wherein the pole wheel comprises in a circumferential direction a plurality of permanent magnets of alternating magnetic polarity generating a useful field, wherein the pole-wheel carrier is configured to be mounted in a rotationally-fixed manner to a rotating machine shaft extending axially, rotational speed and/or angular position of which is to be determined by means of the rotary-encoder sensor system, wherein the magnetic sensor is positioned, in a mounted state of the rotary-encoder sensor system relative to the machine shaft, in a rotational plane of the pole wheel, which can affect the noise field, and directly opposite to the pole wheel, wherein the screening system comprises at least one magnetically conducting, preferably machine-fixed, deflection elemen
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: May 17, 2022
    Assignee: Fritz Kübler GmbH
    Inventors: Christian Ganser, Fred Hintz, Philipp Becker, Viktor Steiner
  • Patent number: 11326906
    Abstract: An apparatus for sensing a rotating body includes a detection target arranged on a surface perpendicular to an extension direction of a rotating shaft of the rotating body, a sensor module facing the detection target, and comprising two sensors disposed in a rotation direction of the rotating body, and a rotation information calculator configured to calculate rotation information of the rotating body based on sensed values from the two sensors, wherein the rotation information calculator is further configured to calculate a rotation angle of the rotating body in accordance with a difference value generated from the sensed values.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: May 10, 2022
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Dong Yeol Lee
  • Patent number: 11320463
    Abstract: A current detection device includes a first coil, a magnetic field detection element, a shield layer, a second coil, and an operation circuit. The first coil has a planar shape. The magnetic field detection element is disposed in a spaced apart manner from the first coil in a direction orthogonal to a plane of the first coil, and is disposed so as to receive a magnetic field which the first coil generates. The shield layer is disposed between the first coil and the magnetic field detection element. The second coil is disposed in a spaced apart manner from the first coil with respect to an axis perpendicular to the shield layer. The operation circuit operates the second coil.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: May 3, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventor: Jia Liu
  • Patent number: 11313289
    Abstract: A position sensor of the present invention includes: a magnet that moves together with a moving body; a magnetic sensor that detects a magnetic flux generated by the magnet; and a detector that detects an anomaly of the magnetic sensor based on a detection value detected by the magnetic sensor. The magnetic sensor is set so as to detect the detection value taking a value on a locus preset in accordance with a position of the moving body, and the locus is set so that a change rate of the detection value corresponding to change of the position of the moving body differs for each of a plurality of sections set within a movement range of the moving body. The detector detects the anomaly of the magnetic sensor based on a relation between the detection value and a comparison value that is a value corresponding to the locus.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: April 26, 2022
    Assignee: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Shoji Kishi, Toshiya Yoshida, Takayuki Otani, Toshikazu Murata
  • Patent number: 11293783
    Abstract: Displacement transducer device, adapted to be coupled to reference points of a structure, includes a first element integrally securable to a first reference point of the structure, first and second magnets arranged so as to magnetically repel one another, a transducer arranged proximate the first and second magnets so as to detect a variation in the magnetic field between the first and second magnet and to convert the variation into a signal processed by a processing unit, the displacement transducer device includes a second element integrally securable to a second reference point of the structure, and one of the first or second magnet or transducer being connected to the first element and the remaining elements of the first or second magnet or transducer being connected to the second element such that a relative movement of the first or the second reference point causes a variation in the magnetic field.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: April 5, 2022
    Assignee: SAFECERTIFIEDSTRUCTURE TECNOLOGIA S.P.A.
    Inventors: Daniele Caltabiano, Anna Pomarico, Giuditta Roselli, Bruno Murari, Alessandro Mariani, Giuseppe Mancini
  • Patent number: 11287288
    Abstract: The disclosure provides a position detection system and a method for detecting a movement of a machine. The position detection system comprises a first position sensor configured to detect a magnetic field that forms magnet pole pairs arranged in a row, magnet poles of different polarity being arranged next to one another in each case, a second position sensor configured to detect a magnetic field at an individual magnet arranged in a center of the magnet pole pairs and at a distance from each magnet pole; and an evaluation device configured to evaluate detection results of the first and second position sensors that have been detected based on a movement of an element of the machine relative to the first and second position sensors, the evaluation including identifying a fault based on the detection results of the first and second position sensors.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: March 29, 2022
    Assignee: Robert Bosch GmbH
    Inventors: Felix Wissel, Gerhard Bund
  • Patent number: 11277083
    Abstract: A motor according to a disclosed embodiment includes: a first magnetic sensor that detects a rotational position of a rotor; a second magnetic sensor arranged at a rotation center of the rotor; a signal amplifier that amplifies a difference between a first signal, which is a signal output from the first magnetic sensor, and a second signal which is a signal output from the second magnetic sensor; and a pulse signal generation unit that converts an output signal of the signal amplifier into a pulse signal.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: March 15, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Masaki Yoshinaga, Tomohiro Fukumura, Taro Amagai, Akiko Ikeda, Kengo Araki
  • Patent number: 11276517
    Abstract: A permanent magnet in the form of a multi-pole magnet, comprising an isotropic magnetic material, having a central axis, magnetised such that the magnetic field, considered on a virtual circle lies substantially in a virtual plane tangential to the circle, and rotates inside that virtual plane, depending on the position on the circle. A method of producing a magnet comprising: a) providing a shaped body comprising an isotropic magnetic material; b) providing at least four electrical conductor segments; c) simultaneously make currents flow in each conductor segment. A magnet made in this way. Use of such a magnet for angular position sensing. An angular position sensor system comprising such a magnet.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: March 15, 2022
    Assignee: MELEXIS TECHNOLOGIES SA
    Inventor: Yves Bidaux
  • Patent number: 11268831
    Abstract: A position detecting device includes a detector circuit detecting a detection signal including information on a position of a magnet from a coil disposed in a housing and opposing the magnet, which is disposed in a lens barrel; and a control circuit converting the detection signal into a count value, determining a conversion formula based on the count value and a velocity of change in the count value, and detecting a position value using the determined conversion formula.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: March 8, 2022
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Je Hyeon Yu, Jung Eun Youm, Ji Hwan Kim, Ja Hwi Cho
  • Patent number: 11255637
    Abstract: An adjustment assembly having a rotary encoder, riflescopes incorporating the same, and related methods are provided. In one example, an adjustment assembly includes a first rotational component configured to rotate about an axis, a first gear coupled with the first rotational component and a second gear coupled with the first rotational component. The assembly further includes an encoder. The encoder includes a position gear engaged with the first gear, the first gear and the position gear having a 1:1 gear ratio, and a revolution gear engaged with the second gear, the second gear and the revolution gear having a gear ratio other than 1:1, wherein the gear ratio of the second gear and the revolution gear independent of a ratio of the respective diameters of the second gear and the revolution gear. Sensors may determine the rotational positions of the position sensor and the revolution sensors.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: February 22, 2022
    Assignee: GUNWERKS, LLC
    Inventors: Mark Delz, Christopher Thomas, Andreas Schaefer
  • Patent number: 11248934
    Abstract: A magnetic sensor device includes a three-dimensional (3D) magnetic sensor and a magnet that produces a magnetic field. The 3D magnetic sensor is arranged within the magnetic field and is configured to measure three different magnetic field components of the magnetic field and generate sensor signals in response to the measured three different magnetic field components. The magnet is arranged in a default spatial position in an absence of any applied spatial force, where the magnet is configured to rotate about a rotation axis based on an applied rotational force. The magnetic field varies inhomogeneously with regards to at least one of the three magnetic field components upon rotation of the magnet about the rotation axis.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: February 15, 2022
    Inventor: Richard Heinz
  • Patent number: 11246694
    Abstract: According to some embodiments, systems and methods are provided for non-invasively detecting the force generated by a non-invasively adjustable implantable medical device and/or a change in dimension of a non-invasively adjustable implantable medical device. Some of the systems include a non-invasively adjustable implant, which includes a driven magnet, and an external adjustment device, which includes one or more driving magnets and one or more Hall effect sensors. The Hall effect sensors of the external adjustment device are configured to detect changes in the magnetic field between the driven magnet of the non-invasively adjustable implant and the driving magnet(s) of the external adjustment device. Changes in the magnetic fields may be used to calculate the force generated by and/or a change in dimension of the non-invasively adjustable implantable medical device.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: February 15, 2022
    Assignee: NUVASIVE SPECIALIZED ORTHOPEDICS, INC.
    Inventor: Shanbao Cheng
  • Patent number: 11243065
    Abstract: Provided is a rotation angle detection device configured to detect a rotation angle of a magnetic field generation source, based on a magnetic field in at least two directions detected by a magnetic field detection device. The rotation angle detection device includes a correction value calculation unit configured to calculate a correction value of the rotation angle; an angle output unit configured to output an angle output signal indicative of the rotation angle of the magnetic field generation source, based on a magnetic field detection signal to be output from the magnetic field detection device and the correction value; and a filter unit capable of selecting a first filter characteristic, which is to be used for outputting the angle output signal, and a second filter characteristic, which is to be used for calculating the correction value and is different from the first filter characteristic.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: February 8, 2022
    Assignee: Asahi Kasei Microdevices Corporation
    Inventors: Takeo Yamamoto, Satoshi Fukase
  • Patent number: 11237019
    Abstract: A magnetic sensor comprises a sensor package and a magnet. The sensor package includes a plurality of lead frames, a magnetic sensor element, and an encapsulation. The plurality of lead frames include a first outer lead and a second outer lead. The first outer lead has a first body and a first protrusion. The second outer lead has a second body and a second protrusion. The magnet includes a magnet body, a first restricting portion, a second restricting portion, a first receiving portion, and a second receiving portion.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: February 1, 2022
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventor: Jyunya Wakabayashi
  • Patent number: 11231295
    Abstract: A rotation angle detection device for detecting a rotation angle of a rotating body includes a magnet having poles arranged along a radial direction perpendicular to a rotation axis of the rotating body, the magnet being disposed to rotate together with the rotating body, a magnetic portion provided in a ring shape radially outward of the magnet, a plurality of gaps being formed in the magnetic portion at a plurality of locations along a circumferential direction, and a magnetic detection unit arranged in a particular gap of the plurality of gaps, the magnetic detection unit being configured to detect a tangential magnetic flux component in a tangential direction and a radial magnetic flux component in the radial direction of a magnetic field.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: January 25, 2022
    Assignee: DENSO CORPORATION
    Inventors: Yoshinori Inuzuka, Yoshiyuki Kono
  • Patent number: 11228191
    Abstract: A sensor device can include an energy storage device that provides power when charged. The sensor device can also include a first sensor coupled to the energy storage device, where the first sensor measures at least one first parameter when receiving the power. The sensor device can further include a wire having a first portion and a second portion, where the first portion of the wire is coupled to the energy storage device, where the second portion of the wire is disposed proximate to the at least one magnet, where relative motion between the second portion of the wire and the at least one magnet induces current in the wire, where the current induced in the second portion of the wire flows to the energy storage device through the first portion of the wire to charge the energy storage device.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: January 18, 2022
    Assignee: CHEVRON U.S.A. INC.
    Inventor: Nathan Michael Kelley
  • Patent number: 11204260
    Abstract: The invention relates to a system comprising a coder that has an alternation of North and South magnetic poles separated by transitions extending along an helix of pitch p and of angle ?. The invention having Npp pairs of North and South poles and a polar width Lp measured along a normal (N) to the transitions which are: Npp=?a/I and Lp=p.cos ?. The invention also includes a sensor able to detect the period magnetic field emitted by the coder by means of at least two sensitive magnetic elements which are disposed at a radial reading distance from the magnetic track. The sensitive elements are disposed in relation to one another to deliver signals in quadrature.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: December 21, 2021
    Assignee: NTN-SNR Roulements
    Inventors: Christophe Duret, Cécile Flammier, Etienne Vandamme
  • Patent number: 11203393
    Abstract: A personal mobility and a controlling method adjusting speed based on shape information of the handle are provided. The personal mobility includes a power device, a braking device, and a handle. The handle includes a plurality of axes provided to be movable and a deformable cover surrounding the plurality of axes. A detector detects movement of each of the plurality of axes and a controller operates the power device and the braking device based on a positional relationship between the plurality of axes according to the movement of each of the plurality of axes.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: December 21, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seunghyun Woo, Minjae Park, Jong Bok Lee
  • Patent number: 11193794
    Abstract: A rotation angle sensor includes first and second magnetic detection elements disposed at positions where a first disposition angle relative to a magnet center is greater than 0 degrees and less than 90 degrees and configured to acquire magnetic field in a first direction varying by a rotation of a magnet; third and fourth magnetic detection elements configured to acquire the magnetic field in a second direction; a calculation signal generator configured to output a first magnetic field calculation signal, based on outputs of the first and second magnetic detection elements, and configured to output a second magnetic field calculation signal, based on outputs of the third and fourth magnetic detection elements; and an angle signal generator configured to generate and output an angle signal indicative of a rotation angle of the magnet, based on the first and second magnetic field calculation signal.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: December 7, 2021
    Assignee: Asahi Kasei Microdevices Corporation
    Inventors: Kenta Sogo, Takeo Yamamoto
  • Patent number: 11187557
    Abstract: A novel multi-phase resolver topology and apparatus is provided for measuring a displacement of movement body more precisely and economically. In variable reluctance (VR) resolvers, N coil-poles are placed at N equally spaced positions over one turn of the stator, N being an odd number greater than or equal to 5. Each coil serves both as an excitation and a sensing coil, and all N coils are wound with the same number of turns at an identical electrical polarity. Depending on the installed rotor lobe shape, N sinusoidal or quasi-square waveform displacement signals are sensed on multi-phase resolver, and from which two-phase orthogonal displacement signals are optimally and differentially synthesized. The multi-phase resolver topology and differential synthesis method is also applied to other types of resolvers, such as wound-rotor, inductance, capacitive, and magnetic resolvers.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: November 30, 2021
    Inventor: Chun Soo Park
  • Patent number: 11181398
    Abstract: A rotation angle detection device for detecting a rotation angle of a rotating body includes a magnet disposed to rotate together with the rotating body, a magnetic portion provided in a ring shape radially outward of the magnet, a plurality of gaps being formed in the magnetic portion at a plurality of locations along a circumferential direction, and a magnetic detection unit arranged in a particular gap of the plurality of gaps. The magnetic detection unit is located at a detection position, a width of the particular gap in the tangential direction at the detection position is defined as a detection position gap width, a width of the particular gap in the tangential direction at a position radially outward of the detection position is defined as a tangential width, and the tangential width is narrower than the detection position gap width.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: November 23, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yoshinori Inuzuka, Yoshiyuki Kono, Hidekazu Watanabe, Tomoyuki Takiguchi, Takasuke Ito
  • Patent number: 11181394
    Abstract: A distance measuring device with two magnetic field sensors and a permanent magnet and a semiconductor body is provided. The device includes a monolithically integrated evaluation circuit, and a difference signal can be determined by means of the magnetic field sensors and provides an output signal as a result of the determination. The value of the output signal based on the neutralization of a magnetic-flux-free region is a function of a distance of a ferromagnetic sensing element from the two magnetic field sensors. The semiconductor body is arranged between U-shaped pole shanks of the magnet, which is magnetized in the X direction, wherein the first magnetic field sensor is arranged in an area located between two opposing shanks of the first pole, and the second magnetic field sensor is arranged in an area located between two opposing shanks of the second pole.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: November 23, 2021
    Assignee: TDK-Micronas GmbH
    Inventor: Joerg Franke
  • Patent number: 11169002
    Abstract: A sensor system and a joystick including the sensor system. The sensor system comprises a magnetic field sensor, and first and second magnetic sources. The first magnetic source is rotatable relative to a sensitive surface of the sensor and generates a first magnetic field contribution of at least quadrupolar order. The second magnetic source is pivotable with respect to the sensitive surface and generates a second magnetic field contribution. The sensor is configured for detecting at least an in-plane component of a superimposition field of the first and second magnetic contributions at a plurality of lateral measurement locations on the sensitive surface, obtaining measurements, and determining a rotation angle for the first source from the field gradient measurements and two angular directions for the second source from the field mean measurements. Lateral measurement locations are arranged into two pairs of diametrically opposite measurement locations with respect to the sensitive surface.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: November 9, 2021
    Assignee: MELEXIS TECHNOLOGIES SA
    Inventors: Hao Wang, Zhenghao Cui
  • Patent number: 11156477
    Abstract: A rotation angle measurement method and a circuit, a rotation angle measuring system including a shaft, a transducer, a first sensor system with at least one magnetic field sensor of a first type for measuring a magnetic field component Bz and a second sensor system with at least one magnetic field sensor of a second type for detecting magnetic field components Bx, By being provided, a first or second measured value being ascertained with the aid of each sensor system at a first point in time, a first or second rotation angle value being determined for each measured value, a first output rotation angle value being determined from the first rotation angle value and a known constant angle offset between the two sensor systems as a reference value for the second sensor system, a deviation of the second rotation angle value from the first output rotation angle value being ascertained.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: October 26, 2021
    Assignee: TDK-Micronas GmbH
    Inventors: Marcus Christian Meyer, Hans Christian Paul Dittmann
  • Patent number: 11143524
    Abstract: A displacement sensor has a magnetic measuring transducer and at least two sensor units, which are arranged at different positions spaced from each other, the measuring transducer being slidably mounted relative to the sensor units. The measuring transducer is magnetized such that it has a magnetic field which rotates at least partially about an axis of rotation along the measuring transducer, and the axis of rotation of the magnetic field runs parallel to the sliding direction of the measuring transducer. The sensor units are designed to each sense two magnetic measured variables proportionally to the magnetic field strength, both measured variables being sensed by both sensor units.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: October 12, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Welsch, Michael Kleinknecht, Mathias Kimmerle, Sina Fella
  • Patent number: 11136059
    Abstract: Embodiments described herein are for a position sensor system integrated into a steering column assembly of a vehicle. The position sensor includes an elongated target comprising a sloping top surface, a first arcuate lateral surface, a second arcuate lateral surface, and an attachment feature for connecting the elongated target to a moveable part of the steering column assembly. The position sensor also includes a sensor device comprising an attachment feature for connecting the sensor device to a stationary part of the steering column assembly and a sensor situated over the sloping top surface of the elongated target. The sensor is configured to detect a position of the elongated target relative to the sensor, where the position of the elongated target corresponds to a position of a steering column of the steering column assembly.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: October 5, 2021
    Assignee: Steering Solutions IP Holding Corporation
    Inventors: James E. Rouleau, Edward A. Cana, Damian Z. Gosztyla, Robert D. Bueche
  • Patent number: 11136753
    Abstract: System for drainage of surface water, the system comprises a number of tanks being connected to a main pipeline leading water to a recipient. Each tank has at least one outlet for leading water from the tank to the main pipeline, and a corresponding lid, the lid is limiting the outlet until the water is at a predetermined level in the tank. The system further comprises a check valve arranged downstream of the outlet of each tank, preventing water from entering the tank from the main pipeline, and at least one air bleeder valve and at least one siphonic drainage regulator arranged between a tank and the recipient.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: October 5, 2021
    Assignee: Aiwell Holding AS
    Inventor: Asle Johnsen
  • Patent number: 11131564
    Abstract: A component identification system is disclosed. The component identification system may include a sensor system that includes a first Hall-effect switch configured to provide a first output signal corresponding to a state of the first Hall-effect switch, and a second Hall-effect switch configured to provide a second output signal corresponding to a state of the second Hall-effect switch. The sensor system may be configured to provide a single output signal that is based on the first output signal and the second output signal and indicates a combined state of the first Hall-effect switch and the second Hall-effect switch. The component identification system may include a component that is to be identified. The component may include a first magnet configured to affect the state of the first Hall-effect switch and a second magnet configured to affect the state of the second Hall-effect switch.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: September 28, 2021
    Assignee: Caterpillar Inc.
    Inventors: Michael T. McKinley, Ye Tian
  • Patent number: 11125582
    Abstract: A wheel portion allows a shaft body that serves as a detection object to be inserted therein in a direction of a rotational axis from a position in front of the wheel portion, and is rotated about the rotational axis when the shaft body is rotated. The wheel portion includes a tubular portion in which the shaft body is inserted and a projecting edge portion extending away from the rotational axis at a front end of the tubular portion. The housing portion includes a cover portion having a hollow tubular opening portion in which the shaft body is inserted. The cover portion and the wheel portion are engaged with each other such that the opening portion is located on an inner side of the projecting edge portion.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: September 21, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Shinji Kikuchi, Keisuke Nakayama
  • Patent number: 11092463
    Abstract: A magnetic angular position sensor system is described herein, which includes a shaft rotatable around a rotation axis, the shaft having a soft magnetic shaft end portion. The system further includes a sensor chip spaced apart from the shaft end portion in an axial direction and defining a sensor plane, which is substantially perpendicular to the rotation axis. At least four magnetic field sensor elements are integrated in the sensor chip, with two of the magnetic field sensor elements being spaced apart from each other and are sensitive to magnetic field components in a first direction and wherein two of the magnetic field sensor elements are spaced apart from each other and are only sensitive to magnetic field components in a second direction, whereby the first and the second direction are mutually non-parallel and the first and the second direction being perpendicular to the rotation axis.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: August 17, 2021
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner