Patents Examined by Alesa Allgood
  • Patent number: 11512977
    Abstract: A redundant resolver is configured of a stator and a rotor that form a pair, wherein the rotor is a rotor with a shaft angle multiplier of Nx having Nx (Nx is a natural number) salient poles, the stator is such that n teeth T1 to Tn, where n is a natural number, are disposed sequentially in a circumferential direction, configuring M systems by being divided into M in the circumferential direction, and having an angle of 360/M degrees when angles of the teeth configuring one system are totaled, a one-phase excitation winding and a two-phase output winding are wound around each of the teeth T1 to Tn, excitation signals of the same frequency are applied by differing excitation circuits to the respective excitation windings, an output order per system is Nout (Nout is a natural number), and an abnormality is detected based on output signals of the M systems.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: November 29, 2022
    Assignee: Mitsubishi Electric Cornoration
    Inventors: Hiroko Ikeda, Yuji Takizawa, Kazumasa Ito, Shinichi Yamaguchi, Toshihiro Matsunaga, Yosuke Sugino
  • Patent number: 11506717
    Abstract: A system, method, and non-transitory computer readable medium for diagnosing stator inter-turn faults in a Line Start Permanent Magnet Synchronous Motor (LSPMSM) are described. The method of diagnosing stator inter-turn faults in the LSPMSM includes collecting acoustic signals that are generated from a LSPMSM by a communication device, analyzing via singular spectrum analysis (SSA) the collected acoustic signals for fault detection of the stator inter-turn faults, and determining a fault diagnosis for the fault detection by executing a Fast Fourier Transform (FFT).
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: November 22, 2022
    Assignee: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Luqman Sulyman Faez Sulyman Maraaba, Azhar Mehmood Mehmood Memon, Mohamed Ali Yousif Ali Abido, Luai Muhammad Muhammad Alhems
  • Patent number: 11493571
    Abstract: According to one embodiment of the invention, a magnetic sensor includes a first element part. The first element part includes a first magnetic element, first and s second structures, a first magnetic member, and a second magnetic member. A direction from the first magnetic layer toward the first counter magnetic layer is along a first direction. The first structure includes a first side magnetic layer. The second structure includes a second side magnetic layer. The first magnetic element is between the first structure and the second structure in a second direction crossing the first direction. The first magnetic element is separated from the first side magnetic layer and the second side magnetic layer. A direction from the first side magnetic layer toward the first magnetic member is along the first direction. A direction from the second side magnetic layer toward the second magnetic member is along the first direction.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: November 8, 2022
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hitoshi Iwasaki, Satoshi Shirotori, Akira Kikitsu, Yoshihiro Higashi
  • Patent number: 11493465
    Abstract: Systems and methods to evaluate a formation by analyzing drill cuttings involve a multi-frequency dielectric coaxial probe to obtain a reflected voltage from a medium under test based on a reference voltage over a frequency range. The medium under test includes the drill cuttings. The system includes a processor to compute an effective permittivity of the drill cuttings over the frequency range based on a reflection coefficient, which is a ratio of the reflected voltage to the reference voltage over the frequency range, and to determine one or more parameters from the effective permittivity. The one or more parameters are used to make decisions about subsequent drilling in the formation.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: November 8, 2022
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Salah Al-Ofi, Hasan Kesserwan, Guodong Jin
  • Patent number: 11488949
    Abstract: The present invention provides a method of generating dummy patterns and calibration kits, including steps of generating devices-under-test (DUTs) using a point of said chip window layer as reference point in a unit cell, generating calibration kits corresponding to the DUTs using the point as reference point in corresponding unit cells, generating DUT dummy patterns for each DUTs individually in the unit cell, copying the DUT dummy patterns in the unit cell to the corresponding calibration kits in the corresponding unit cells using the point as reference point, and merging all of the unit cell and corresponding unit cells into a final chip layout.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: November 1, 2022
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Kuo-Liang Yeh, Jinn-Horng Lai, Ching-Wen Hung, Chien-Tung Yue, Chun-Li Lin
  • Patent number: 11480536
    Abstract: A method for determining a value indicative of the permittivity of a cell population in the context of impedance spectroscopy comprises the following steps: generating an excitation current through the cell population, which oscillates with an excitation frequency; measuring a voltage in the cell population between a first measuring electrode (12) and a second measuring electrode (14); sampling the excitation current, wherein first sampled values for the excitation current are generated; sampling the voltage between the first measuring electrode (12) and the second measuring electrode (14), wherein second sampled values for the voltage between the first measuring electrode and the second measuring electrode are generated; and determining the value indicative of the permittivity of the cell population on the basis of the first sampled values and the second sampled values.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: October 25, 2022
    Assignee: HAMILTON BONADUZ AG
    Inventor: Manuel Imhof
  • Patent number: 11467232
    Abstract: Example implementations are concerned with magnetoresistive sensors and with corresponding fabrication methods for magnetoresistive sensors. One example here relates to a magnetoresistive sensor having a layer stack. The layer stack comprises a reference layer having a reference magnetization, which is fixed and has a first magnetic orientation. The layer stack comprises a magnetically free layer. The magnetically free layer has a magnetically free magnetization. The magnetically free magnetization is variable in the presence of an external magnetic field. The magnetically free magnetization has a second magnetic orientation in a ground state. One of the first or the second magnetic orientation is oriented in-plane and the other is oriented out-of-plane. The layer stack comprises a metal multilayer. In this case, either the metal multilayer is arranged adjacent to the magnetically free layer, or the metal multilayer constitutes the magnetically free layer.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: October 11, 2022
    Assignee: Infineon Technologies AG
    Inventors: Clemens Muehlenhoff, Wolfgang Raberg, Dieter Suess
  • Patent number: 11460291
    Abstract: A process for determining the total pitch deviation of a position sensor fitted with a magnetic disk and a magnetic detector, the magnetic disk comprising pairs of magnetic poles, the process includes recording, over one mechanical turn, an angular signal of the magnetic intensity measured by the magnetic detector as a function of the angle of rotation of the magnetic disk, determining zero-crossing positions based on the angular signal recorded and the number of zero-crossing position determined, determining the pole pair lengths based on the zero-crossing positions, and determining the total pitch deviation based on the pole pair lengths.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: October 4, 2022
    Inventors: Susanne Blokland, Salah-Eddine Douih, Mathieu Hubert, Simon Hubert, Benedicte Thomas, Charlotte Vu
  • Patent number: 11460522
    Abstract: A resistive sensor system includes resistive sensor pairs formed of first and second sensors of opposite sensitivity directions to a measured property. Each resistive sensor pair includes one of the first sensors having a first terminal and a second terminal, and one of the second sensors having a third terminal and a fourth terminal. The fourth terminal is coupled to the second terminal of the first sensor. The system further includes multiple noninverting switch elements, each having a noninverting output coupled to the first terminal of one the first sensors, and multiple inverting switch elements, each having an inverting output coupled to the third terminal of one of the second sensors. For each resistive sensor pair, the noninverting and inverting switch elements receive a switch signal for controlling the noninverting and inverting switch elements such that the first and second sensors are biased in opposition to one another.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: October 4, 2022
    Assignee: NXP B.V.
    Inventors: Edwin Schapendonk, Hendrikus van Iersel, Maciej Skrobacki
  • Patent number: 11454607
    Abstract: A crack detection device includes: a sensor unit that has a three-layer structure of conductor-insulator-conductor and is attached to a structure; a frequency characteristics acquisition unit that sweeps a predetermined frequency range to acquire a plurality of frequencies at which the impedance of the sensor unit is maximum or minimum; a crack presence/absence determination unit that determines the presence or absence of a crack based on a nonuniformity of the plurality of frequencies; a crack position table in which a relationship between crack positions and frequency shift directions is recorded; and a crack position detection unit that, when the crack presence/absence determination unit determines that there is a crack, takes a difference between two frequencies acquired by the frequency characteristics acquisition unit to determine a sign, and then refers to the crack position table in accordance with the sign to detect a crack position.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: September 27, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tadashi Minotani, Eri Matsunaga, Masahito Nakamura, Masayuki Tsuda
  • Patent number: 11448701
    Abstract: The present disclosure discloses a Condition Monitoring Device (CDM), configured to monitor power consumption and loading of motor. The CDM receives value of a measured current in a stator of the motor, and measures at least one of a magnetic flux around the motor and vibrations in the motor. The magnetic flux, the vibrations and the current in the stator are measured within a predefined time window. The CDM calculates various parameters of the motor and estimates a value of current using the measurements and rated parameters stored in the CDM. The estimated parameter of current is compared with the measured value of current. A value of rotor speed (one of the rated parameters) is varied until the value of the estimated current is approximately equal to the value of the measured current. The value of current is considered to monitor power consumption and loading of the motor.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: September 20, 2022
    Assignee: ABB Schweiz AG
    Inventors: Pallavi Hujband, Maciej Orman, Cajetan Pinto
  • Patent number: 11442120
    Abstract: An object of the present invention is to provide a magnetic sensor capable of detecting a magnetic field to be measured through closed loop control even when the magnetic field is weak. A magnetic sensor includes magnetic layers 41 and 42 opposed to each other through a magnetic gap G1, a magneto-sensitive element R1 disposed on a magnetic path formed by the magnetic gap G1, and a compensation coil 60 generating canceling magnetic flux ?4 to cancel magnetic flux ?2 applied to the magneto-sensitive element R1. According to the present invention, magnetic flux ?2 flowing in the magnetic layers 41 and 42 each functioning as a yoke is applied to the magneto-sensitive element R1, so that even when a magnetic field to be measured is weak, it can be detected. In addition, closed loop control can be performed due to the presence of the compensation coil 60 that cancels magnetic flux ?2.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: September 13, 2022
    Assignee: TDK CORPORATION
    Inventor: Takeo Gokita
  • Patent number: 11428757
    Abstract: An exchange-coupling film having a large magnetic field (Hex) at which the magnetization direction of a pinned magnetic layer is reversed, thus exhibiting high stability under high-temperature conditions, and having excellent high-magnetic-field resistance includes an antiferromagnetic layer and a pinned magnetic layer in contact with the antiferromagnetic layer. The antiferromagnetic layer has an alternating multilayer structure of three or more layers, the layers including alternately stacked X1Cr and X2Mn layers, where X1 represents one or more elements selected from the group consisting of platinum group elements and Ni, and X2 represents one or more elements selected from the group consisting of platinum group elements and Ni and may be the same as or different from X1.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: August 30, 2022
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Masamichi Saito, Hiroaki Endo, Fumihito Koike
  • Patent number: 11428712
    Abstract: An analysis device analyzes inspection results of an inspection object which includes inspection target devices having respective electrodes on which needle marks are formed. The analysis device includes a display part for displaying an image, and an image generation part for generating an image to be displayed on the display part. The image generation part generates an analysis image based on information on inspection results with respect to the needle marks. The analysis image includes a needle mark scatter plot image showing positions of the needle marks with respect to the electrodes in each inspection target device in an overlapped manner, an inspection object map image showing a surface of the inspection object and showing needle mark inspection results with respect to the inspection target devices, and a captured image of the electrodes. Display contents of the images are linked with each other.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: August 30, 2022
    Assignee: TOKYO ELECTRON LIMITED
    Inventor: Shin Uchida
  • Patent number: 11422210
    Abstract: Apparatuses, systems, and associated methods of manufacturing are described that provide for improved sensor devices. An example sensor device includes a magnet mounting tube and a magnet supported within the magnet mounting tube. The sensor device includes a sensor mounting tube that receives at least a portion of the magnet mounting tube and supported magnet therein. The sensor device includes a magnetic sensor affixed to the sensor mounting tube. The sensor device includes a spring positioned around the magnet mounting tube and the sensor mounting tube such that the magnet and the magnetic sensor are surrounded by the spring. In an instance in which a load is applied to either a first end or second end of the spring, the magnet mounting tube translates relative the sensor mounting tube so as to induce a change in magnetic flux identified by the magnetic sensor indicative of a weight of the load.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: August 23, 2022
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Kumaran Narasimhan, Frederick W. Hintz, William McGraw, Thomas John Olson, J. L. Hunter
  • Patent number: 11408949
    Abstract: A magnetoresistive hydrogen sensor and sensing method thereof, wherein the hydrogen sensor comprises a substrate located in an X-Y plane, magnetoresistive sensing units and magnetoresistive reference units located on the substrate. The magnetoresistive sensing units are electrically connected to form a sensing arm, and the magnetoresistive reference units are electrically connected to form a reference arm. The sensing arm and the reference arm are electrically interconnected to form a referenced bridge structure. The magnetoresistive sensing units and the magnetoresistive reference units may be AMR units having the same magnetic multilayer thin film structure, GMR spin valves, or GMR multilayer film stacks having the same magnetic multilayer thin film structure. The magnetoresistive sensing units and the magnetoresistive reference units are respectively covered with a Pd layer, and a passivating insulation layer is deposited over the Pd layer of the magnetoresistive reference units.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: August 9, 2022
    Assignee: MultiDimension Technology Co., Ltd.
    Inventors: James Geza Deak, Xuanzuo Liu
  • Patent number: 11391763
    Abstract: A system for grounding and diagnostics, including a conductive frame for mounting a capacitive sensor. In order to provide a means for ensuring and monitoring a grounded condition of a conductive frame, the system further includes a diagnostics circuit, by which the frame is AC grounded and which has an electric source connected to the frame via a first line and adapted to apply a diagnose signal to the frame via the first line, the diagnostics circuit being connected to the frame by a second line and being adapted to provide at least one quantity that depends on the diagnose signal and on a ground connection of the frame.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: July 19, 2022
    Assignee: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
    Inventors: Laurent Lamesch, Michael Puetz
  • Patent number: 11391557
    Abstract: Sensor arrangements are disclosed. A magnetic sensor is mounted to a printed circuit board. A pole element is arranged next to the magnetic sensor. The pole element acts as a magnetic field concentrator for the magnetic sensor. A movable magnet may be positioned in proximity to the magnetic sensor and the pole element. The movable magnet may be held in a magnet holding element. The magnet holding element may be attached to a rotatable element, such as a shaft.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: July 19, 2022
    Assignee: Suzhou Littelfuse OVS Co., Ltd.
    Inventors: Ioannis Anastasiadis, Ming Li, Jiao Yu
  • Patent number: 11391367
    Abstract: A method of detecting a gear shift position of an electric shift-by-wire system is proposed. The method includes setting, as a reference position, a motor position at a time point when shift is completed to a target shift stage; rotating the motor until the motor no longer rotates in a P stage-engaging direction from the reference position; measuring a rotation amount of the motor with respect to the reference position; and determining the gear shift position by determining that the reference position is a P stage when the measured rotation amount of the motor is less than or equal to a predetermined first reference value, and the reference position is not the P stage when the measured rotation amount of the motor is greater than the first reference value.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: July 19, 2022
    Assignee: Hyundai Kefico Corporation
    Inventor: Hyoung Sang Cho
  • Patent number: 11385301
    Abstract: A sensor device comprises a busbar, a dielectric arranged on the busbar, and a sensor chip arranged on the dielectric, wherein the sensor chip is designed to measure a magnetic field induced by an electric current flowing through the busbar, wherein the surface of the dielectric facing toward the busbar is spaced from the busbar in an area along the entire periphery of the dielectric.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: July 12, 2022
    Assignee: Infineon Technologies AG
    Inventors: Juergen Hoegerl, Rainer Markus Schaller, Volker Strutz