Patents Examined by Reena Aurora
  • 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: 11137452
    Abstract: The present invention discloses a single-chip high-sensitivity magnetoresistive linear sensor, which comprises a substrate located in the X-Y plane and a soft ferromagnetic flux concentrator array located on the substrate. The soft ferromagnetic flux concentrator array comprises several soft ferromagnetic flux concentrators, wherein there is a gap between each two adjacent soft ferromagnetic flux concentrators. The +X and ?X magnetoresistive sensing unit array respectively comprises +X and ?X magnetoresistive sensing units located in the gaps. The +X and ?X magnetoresistive sensing units are electrically interconnected to form a push pull X-axis magnetoresistive sensor. Each of the magnetoresistive sensing units that have the same magnetic field sensing direction are arranged in adjacent locations. The magnetoresistive sensing units are all MTJ magnetoresistive sensor elements, and each has the same magnetic multi-layer film structure.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: October 5, 2021
    Assignee: MultiDimension Technology Co., Ltd.
    Inventors: James Geza Deak, Zhimin Zhou
  • Patent number: 11125590
    Abstract: A method of detecting a vibration comprises determining a vibration flag has been set during a running mode of the magnetic field sensor, remaining in the running mode until a predetermined number of vibration flags have been set, and entering a recalibration mode when the predetermined number of vibration flags have been set. A counter can be implemented for each of the plurality of vibration flags to determine if the predetermined number of vibration flags have been set.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: September 21, 2021
    Assignee: Allegro MicroSystems, LLC
    Inventors: Benjamin Geiger, David Toebes, Naota Nakayama
  • Patent number: 11125839
    Abstract: A magnetic sensor capable of reducing noise caused by an interference magnetic field and capable of outputting a highly accurate signal in accordance with changes in a detected magnetic field includes a magnetic detection element, a first magnetic body having a first surface and a second surface, which is opposite to the first surface, and a second magnetic body positioned approximately in the center of the first magnetic body in the short direction on the first surface of the first magnetic body. The magnetic detection element is provided to be opposite to the second magnetic body with the first magnetic body interposed in between and positioned approximately in the center of the first magnetic body in the short direction. The magnetic sensing direction of the magnetic detection element is a direction approximately parallel to the short direction of the first magnetic body and the second magnetic body, and a width W1 of the first magnetic body is larger than a width W2 of the second magnetic body.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: September 21, 2021
    Assignee: TDK Corporation
    Inventor: Yongfu Cai
  • Patent number: 11112492
    Abstract: A rotation angle sensor system for an optical system and/or a LIDAR system having a rotor and a stator for determining a rotation angle and/or an orientation between the rotor and the stator, which has a coil system that is stator-based and rotatably fixedly attached or attachable to the stator as a sensor element for receiving a magnetic alternating field, and, having a target that is rotor-based and rotatably fixedly attached or attachable to the rotor for generating a magnetic alternating field, and in which the coil system and the target are attached or are attachable to the stator and to the rotor so that different overlaps and/or spatial proximities occur between the coil system and the target as a function of the rotation angle and/or of the orientation between stator and rotor with a correspondingly different influence of the magnetic alternating field of the target on the coil system.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: September 7, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Fabian Utermoehlen, Stefan Leidich
  • Patent number: 11112230
    Abstract: Methods and apparatus for a sensor with a main coil to direct a magnetic field at a rotating target for inducing eddy currents in an end of the target and a sensing element to detect a magnetic field reflected from the target, wherein the target end comprises a conductive surface. The reflected magnetic field can be processed to determine an angular position of the target.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: September 7, 2021
    Assignee: Allegro Microsystems, LLC
    Inventors: Alexander Latham, Maxim Klebanov
  • Patent number: 11105788
    Abstract: An apparatus for detecting internal defects in a transformer is provided. The apparatus detecting internal defects that arise in the interior by integrating an electrode for electrically detecting defects and a sensor for detecting internal gas into a single body and inserting same into the interior. The apparatus for detecting internal defects in a transformer according to the present invention comprises: a metal member of a set length; a plurality of electrodes, disposed around the metal member, for detecting electrical signals generated due to internal defects of the transformer; an insulating member formed so as to contain the metal member and plurality of electrodes; and a gas sensor, installed at the end of the metal member, for detecting gas inside the transformer.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 31, 2021
    Assignee: HYOSUNG HEAVY INDUSTRIES CORPORATION
    Inventors: Jae Ryong Jung, Young Min Kim, Sung Wook Kim, Hyang Eun Jo
  • Patent number: 11099034
    Abstract: A position sensor includes a detector and a signal processor. The detector includes a magnet generating a bias magnetic field and a detection element configured to be applied by the bias magnetic field, and generates plural detection signals including distinct phase difference and corresponding to plural ranges aligned in one direction along a movement direction of a detection target, based on a change in a magnetic field received by the detection element from the detection target with a movement of the detection target having a magnetic body. The signal processor acquires the detection signals from the detector, compares the detection signals with a threshold value, and specifies a position of the detection target as a position at one of the ranges based on a combination of magnitude relation between the detection signals and the threshold value.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: August 24, 2021
    Assignee: DENSO CORPORATION
    Inventors: Yasuhiro Kitaura, Atsushi Kobayashi, Michihiro Makita, Akito Sasaki, Tetsuya Ohmi
  • Patent number: 11099291
    Abstract: A transmission device of a submarine resource exploration system includes a transmission unit which transmits a predetermined transmission artificial signal transmitted in order to perform exploration of submarine resources in water using water as a medium. A reception device includes a reception unit which receives a composite signal of a received artificial signal representing a signal propagated to the reception device using water as a medium in the transmission artificial signal, and a self-potential propagated to the reception device using water as a medium due to a potential anomaly generated due to submarine resources. A signal processing device includes a signal processing unit which separates the composite signal into the received artificial signal and the self-potential.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: August 24, 2021
    Assignee: Japan Agency for Marine-Earth Science and Technology & Nippon Marine Enterprises, Ltd.
    Inventors: Takafumi Kasaya, Tadanori Goto, Yoshifumi Kawada, Hisanori Iwamoto
  • Patent number: 11092461
    Abstract: A position sensor system for determining a position of a sensor device relative to a magnetic structure, the system comprising: said magnetic structure comprising a plurality of poles; said sensor device comprising a plurality of magnetic sensors; the magnetic structure being movable relative to the sensor device, or vice versa; wherein: a distance between centres of adjacent poles varies along the movement direction; the sensor device is adapted: for determining a first magnetic field component parallel to, and a second magnetic field component perpendicular to a movement direction, and for calculating a coarse signal based on these components; and for determining a first and second gradient of these signals along the movement direction, and for calculating a fine signal based on these gradients; and for determining said position based on the coarse signal and the fine signal.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: August 17, 2021
    Assignee: MELEXIS TECHNOLOGIES SA
    Inventor: Yves Bidaux
  • Patent number: 11092510
    Abstract: A multi-directional water sensor comprises a housing having multiple conductive pads on the outer surface of the housing at locations spaced around the periphery of the housing, an electrical power source located inside the housing, a buzzer located inside the housing, and multiple electrical conductors located inside the housing and connecting multiple pairs of the contacts so that electrical current can flow between different pairs of the contacts when they are connected by water. The buzzer produces a sound when electrical current flows between any pair of the contacts.
    Type: Grant
    Filed: September 22, 2020
    Date of Patent: August 17, 2021
    Assignee: Glentronics, Inc.
    Inventor: Ilya Ostashev
  • Patent number: 11079257
    Abstract: The present disclosure provides an absolute encoder capable of suppressing an increase in size while securing the resolution. An encoder includes a magnet rotating integrally with at least one rotary body and a plurality of rotary sensors detecting magnetic poles of the magnet to output detection signals having sinusoidal waveforms, each sinusoidal waveform having a different phase. The at least one rotary body includes a first rotary body rotating integrally with a main shaft and a third rotary body rotating together with the rotation of the first rotary body. The absolute encoder includes an angular sensor to detect the rotational angle of the first rotary body and the magnet is arranged in the third rotary body.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: August 3, 2021
    Assignee: MINEBEA MITSUMI INC.
    Inventor: Yasuo Osada
  • Patent number: 11073577
    Abstract: Methods and apparatus for a TMR-based sensor having a first magnetic field sensing element comprising a bridge having first, second, third, and fourth legs. Legs of the bridge comprise TMR elements with pillars connected to one or more switch matrixes to adjust total resistances of the bridge legs. Equalizing the resistance of the bridge legs can enhance sensor performance.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: July 27, 2021
    Assignee: Allegro MicroSystems, LLC
    Inventors: HernĂ¡n D. Romero, Octavio H. Alpago
  • Patent number: 11067539
    Abstract: A system for detecting the presence of a rail end in a rail of a railway track includes a support structure mountable to a component of a rail vehicle. At least one magnetic field generator is carried by the support structure to generate a remanent magnetic field in the rail. A sensor arrangement is carried by the support structure in spaced relationship to the magnetic field generator to detect magnetic flux leakage associated with the remanent magnetic field. The sensor arrangement includes at least one pair of longitudinally spaced sensors, each sensor generating a measured signal based on the magnetic flux leakage detected by that sensor. A signal processing module is responsive to the measured signals to calculate a differential signal from the measured signals of the sensors of the at least one pair of sensors. The differential signal is indicative of the presence of a rail end in the rail.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: July 20, 2021
    Assignee: Technological Resources Pty Ltd
    Inventors: Sid Hay, Peter Crawford, Izak Nieuwoudt
  • Patent number: 11067645
    Abstract: A sensor comprises a housing; and a lead frame comprising at least three elongated leads having an exterior portion extending from the housing; and a magnetic sensor circuit disposed in the housing, and connected to the lead frame. The housing comprises two recesses arranged on two opposite sides of the housing for allowing the sensor to be mounted to a support. The lead frame may further comprise a plurality of tabs disposed between the elongated leads, for use as test pins. A component assembly comprising said sensor mounted on a support between deformable protrusions. A method of making said component assembly, comprising the step of positioning said component on the support between said protrusions, and deforming said protrusions such that they are at least partially disposed within the recesses.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: July 20, 2021
    Assignee: MELEXIS TECHNOLOGIES SA
    Inventors: Jian Chen, Orlin Gueorguiev Saradjov
  • Patent number: 11060398
    Abstract: A method may comprise disposing a nuclear magnetic resonance logging tool into a wellbore, identifying an upper limit of an amplitude for tool motion, identifying a frequency range based at least in part on the upper limit of the amplitude for tool motion, measuring the one or more frequencies from the echo train, and performing a frequency-domain processing of the one or more frequencies to suppress distortions in an echo train. A system may comprise a nuclear magnetic resonance logging tool and an information handling system. The nuclear magnetic resonance logging tool may further comprise an electromagnetic transmitter configured to emit a magnetic field, a radio frequency transmitter configured to transmit a pulse and one or more refocusing pulses, and a receiver configured to detect one or more frequencies from an echo train.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 13, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Mark C. Butler, Rebecca Corina Jachmann
  • Patent number: 11043484
    Abstract: Techniques for electrostatic discharge (ESD) protection in integrated circuit (IC) chip packages methods for testing the same are described that are configured to directs the risk of ESD events through ground and power interconnects preferentially over I/O interconnects to enhance ESD protection in chip packages. In one example, a chip package is provided that includes an IC die, a substrate, and a plurality of interconnects. The plurality of interconnects are exposed on a side of the substrate opposite the IC die. The interconnects provide terminations for substrate circuitry formed within the substrate. At least one of the last 5 interconnects of the plurality of interconnects respectively comprising rows and columns of interconnects disposed along the edges of the substrate that closest to each corner of substrate project farther from the substrate than interconnects within those rows and columns that are configured as I/O interconnects.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: June 22, 2021
    Assignee: XILINX, INC.
    Inventors: Hong Shi, James Karp, Siow Chek Tan, Martin L. Voogel, Mohsen H. Mardi, Suresh Ramalingam, David M. Mahoney
  • Patent number: 11041708
    Abstract: An angle sensing device including a first object, a second object, a magnetic field source, and a first magnetic sensor is provided. The second object is adapted to be rotated with respect to the first object, so that an inclined angle of the second object with respect to the first object is changed. The magnetic field source is connected to the second object. The first magnetic sensor is connected to the first object, and configured to sense a magnetic field generated by the magnetic field source. When the second object is rotated with respect to the first object, the magnetic field sensed by the first magnetic sensor changes, so that an output signal of the first magnetic sensor corresponding to the magnetic field changes.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: June 22, 2021
    Assignee: iSentek Inc.
    Inventors: Wei-An Hsieh, Fu-Te Yuan, Yen-Chi Lee
  • Patent number: 11041922
    Abstract: An apparatus to provide power for operating at least one gradient coil of a magnetic resonance imaging system. According to some aspects, the apparatus comprises a plurality of power terminals configured to supply different voltages of a first polarity, and a linear amplifier configured to provide at least one output to power the at least one gradient coil to produce a magnetic field in accordance with a pulse sequence, the linear amplifier configured to be powered by one or more of the plurality of power terminals, wherein the one or more of the plurality of power terminals powering the linear amplifier is selected based, at least in part, on the at least one output.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: June 22, 2021
    Assignee: Hyperfine Research, Inc.
    Inventors: William J. Mileski, Gregory L. Charvat, Jonathan M. Rothberg, Jeremy Christopher Jordan
  • Patent number: 11041739
    Abstract: The rotation sensor includes a plurality of magnetic sensors for outputting a sine wave signal and a cosine wave signal corresponding to an electrical angle of rotation of the rotating body, and the magnetic sensors are arranged at equal intervals and in a circumferential direction of the rotating body apart from the outer periphery of the rotating body, and are fixed in position so as to detect a change in magnetic field caused by the change in the rotational position of the rotating body due to the rotation of the rotating body. The rotation sensor includes an arithmetic unit, which receives sine wave signals and cosine wave signals from a plurality of magnetic sensors, and adds and subtracts sine wave signals and cosine wave signals according to a predetermined rule, thereby cancels out the high-order components contained in sine wave signals and cosine wave signals.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: June 22, 2021
    Assignee: DENSO CORPORATION
    Inventors: Tetsuya Ohmi, Michihiro Makita