Compensation For Measurement Patents (Class 324/207.12)
  • Patent number: 10768019
    Abstract: An actuator including a detection target disposed on a surface of a lens barrel, and a position detecting unit including two or more sensing coils and configured to detect a displacement of the detection target in a first direction perpendicular to an optical axis, wherein when the detection target moves in a second direction perpendicular to the optical axis, an area of overlap between each of the two or more sensing coils and the detection target is maintained constant.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: September 8, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sang Hyun Min, Jae Hyung Lee
  • Patent number: 10763729
    Abstract: In an electronic control unit, a current circuit part is provided on a substrate and includes a switching element. During the control of a control target, a current having a relatively large value of a predetermined value or more flows in the current circuit part. A control circuit part is provided on the substrate and includes a control part that controls actuation of the switching element on the basis of a control signal to control the control target. A current input part is provided on the substrate so as to be located opposite to the control circuit with respect to the current circuit portion. To the current input portion, the current to be supplied to the control target via the current circuit portion is input.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: September 1, 2020
    Assignee: DENSO CORPORATION
    Inventor: Hiroyasu Sugiura
  • Patent number: 10750975
    Abstract: The present disclosure provides systems and methods for generating smoothed images of an elongate medical device including a plurality of position sensors. The system includes a model construction system configured to be coupled to the medical device and acquire data points corresponding to positions of the position sensors. The computer-based model construction system is further configured to establish a coordinate system, calculate a coordinate for each position sensor, estimate a set of true parameters describing the medical device including a curvature term and a torsion term, calculate a measurement error for each position sensor based on a stiffness parameter, compute smoothed data points for the position sensors based on (i) a function of the estimated set of true parameters and the coordinates of the position sensors, and (ii) a weighting of the measurement error, generate an image of the medical device using the smoothed data points, and display the image.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: August 25, 2020
    Assignee: ST. JUDE MEDICAL, CARDIOLOGY DIVISION, INC.
    Inventors: Anthony D. Hill, Yuriy Malinin
  • Patent number: 10756732
    Abstract: An inductive sensor is proposed which comprises at least one resonant circuit, an evaluation device which in a measuring phase evaluates oscillations of the at least one resonant circuit for generating sensor signals, an energy storage device, and a transfer device which in a relaxation phase of the at least one resonant circuit stores oscillation energy of the at least one resonant circuit in the energy storage device.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: August 25, 2020
    Assignee: BALLUFF GmbH
    Inventor: Simon Mahler
  • Patent number: 10739165
    Abstract: A magnetic field sensor is disclosed. The magnetic field sensor includes a first magnetoresistive element and a second magnetoresistive element arranged as a half bridge. The magnetic field sensor also includes two or more conductors adjacent to the first magnetoresistive element and the second magnetoresistive element. The two or more conductors can carry a bias current and a compensation current such that the bias current and the compensation current flow in the same direction adjacent to the first magnetoresistive element while the bias current and the compensation current flow in opposite directions adjacent to the second magnetoresistive element.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: August 11, 2020
    Assignee: Analog Devices Global
    Inventor: Jochen Schmitt
  • Patent number: 10722140
    Abstract: An apparatus for generating a magnetic field for tracking of an object (12) can include a localized magnetic field generator (76) that is configured to generate a magnetic field (621) and to control the magnetic field (621) in an area of interest (38) and configured to control the magnetic field (621) in a separate area. The separate area can be displaced from the area of interest (38) and can include a magnetic field-disrupting component (86). The object (12) can be located in the area of interest (38).
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: July 28, 2020
    Assignee: St. Jude Medical International Holding S.à r.l.
    Inventors: Alon Izmirli, Uzi Eichler, Michael Korol, Kobi Kor, Yuval Vaknin
  • Patent number: 10712404
    Abstract: An angle sensor includes first and second detection units and an angle detection unit. Each of the first and second detection units generates two detection signals. The first and second detection units are arranged in a positional relationship that establishes predetermined phase relationships among the detection signals they generate. The angle detection unit includes first and second computing circuits and an angle computing unit. The first and second computing circuits generate first and second signals in each of which an error component corresponding to a fifth harmonic contained in the detection signals is reduced. The angle computing unit calculates a detected angle value on the basis of the first and second signals. The angle computing unit performs correction processing for reducing an error occurring in the detected angle value due to an error component corresponding to a third harmonic contained in the detection signals.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: July 14, 2020
    Assignee: TDK CORPORATION
    Inventors: Keisuke Uchida, Kazuya Watanabe, Hiraku Hirabayashi
  • Patent number: 10712177
    Abstract: A position detection device includes a first position detector, a second position detector, and a signal generator. The first position detector includes a first magnetic field generation unit, a second magnetic field generation unit, and a first magnetic sensor. The second position detector includes a third magnetic field generation unit, a fourth magnetic field generation unit, and a second magnetic sensor. The positions of the second and fourth magnetic field generation units vary in response to variations in a detection-target position. The signal generator generates a position detection signal, which is the sum of a first detection signal generated by the first magnetic sensor and a second detection signal generated by the second magnetic sensor. Each of the first and second position detectors includes a bias magnetic field generation unit.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: July 14, 2020
    Assignee: TDK CORPORATION
    Inventors: Tsuyoshi Umehara, Hayato Miyashita, Keisuke Uchida, Hiraku Hirabayashi
  • Patent number: 10704928
    Abstract: A proximity sensor and a method of changing a detection distance are provided to suppress changes in a consumption current of an oscillation circuit. The proximity sensor includes an oscillation circuit having an oscillation amplitude that changes with a feedback current, a comparing part comparing the oscillation amplitude with a threshold, a detecting part detecting a target object based on a comparison result of the comparing part, a voltage value signal generating part generating a voltage value signal based on the feedback current and the detection distance, a threshold setting part setting an analog signal converted from the voltage value signal as the threshold, a current value signal generating part generating a current value signal based on the detection distance and the voltage value signal, and a current value setting part setting an analog signal converted from the current value signal as a current value of the feedback current.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: July 7, 2020
    Assignee: OMRON Corporation
    Inventors: Kazuaki Miyamoto, Ryota Hasegawa, Hiroyuki Tsuchida
  • Patent number: 10673263
    Abstract: The control device controls an adjusting unit that adjusts current flowing between an electric storage unit of an electric storage device configured such that the electric storage device can be connected in parallel with a distinct power supply device, and a wire that electrically connects the electric storage device and the distinct power supply device. The control device includes a current detecting unit that detects (i) current flowing between the wire and the electric storage unit in the second direction or (ii) current flowing between the wire and the electric storage unit when the first current adjusting unit electrically disconnects the wire and the electric storage unit, and an operation control unit that controls operation of the first current adjusting unit based on (i) voltage or SOC of the electric storage unit and (ii) a detection result of the current detecting unit.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: June 2, 2020
    Assignee: NExT-e Solutions Inc.
    Inventor: Fumiaki Nakao
  • Patent number: 10655985
    Abstract: A rotation angle detecting method includes detecting a first rotation angle based on a first measured magnetic value received from a first hall element, detecting a first magnetic value received from a second hall element corresponding to the first detected rotation angle, adjusting a gain based on a first difference value between a second measured magnetic value received from the second hall element, in response to one of the magnetic pieces being rotated at the first rotation angle, and the first magnetic value, redetecting a second rotation angle by applying the gain to the first magnetic value and redetecting a second magnetic value received from the second hall element, corresponding to the second rotation angle, and outputting the second rotation angle as a confirmed rotation angle in response to a second difference value between the second magnetic value and the second measured magnetic value becoming less than a delta value.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 19, 2020
    Assignee: Haechitech Corporation
    Inventors: Dong Yoon Kim, Seong Min Choe, Eun Joong Kim, Joon Yul Yun
  • Patent number: 10648787
    Abstract: A first, a second, and a third computing circuit respectively generate a first post-computation signal with a second harmonic component reduced as compared with first and second signals, a second post-computation signal with the second harmonic component reduced as compared with third and fourth signals, and a third post-computation signal with the second harmonic component reduced as compared with fifth and sixth signals. A fourth and a fifth computing circuit respectively generate a fourth post-computation signal with a third harmonic component reduced as compared with the first and second post-computation signals, and a fifth post-computation signal with the third harmonic component reduced as compared with the second and third post-computation signals. A sixth computing circuit determines a detected angle value based on the fourth and fifth post-computation signals.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: May 12, 2020
    Assignee: TDK CORPORATION
    Inventors: Yohei Hirota, Homare Tokida, Hiraku Hirabayashi
  • Patent number: 10588701
    Abstract: Techniques facilitating augmented reality-assisted surgery are provided. In one example, a method is provided that includes receiving, by a first device including a processor, image data associated with an external portion of a tool located within a body of a patient, wherein the image data includes first information indicative of a first fiducial marker on the external portion of the tool. The method also includes determining one or more relative positions of an internal portion of the tool within the body relative to one or more anatomical structures of the body based on the image data and a defined configuration of the tool. The method also includes generating one or more representations of the tool within the body relative to the one or more anatomical structures based on the one or more relative positions and the defined configuration of the tool.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: March 17, 2020
    Assignee: Medtronic, Inc.
    Inventors: Eric D. Corndorf, Andrzej M. Malewicz
  • Patent number: 10591369
    Abstract: The present invention relates to a method and an arrangement for measuring a force and/or moment on a machine element extending along an axis, using the inverse magnetostrictive effect. The machine element has a magnetization region for magnetization, this region fully encompassing the axis. The arrangement includes at least one first magnetic sensor and one second magnetic sensor, each being designed to measure individually a first and a second direction component of a magnetic field that is caused by the magnetization and by the force and/or the moment. The direction components that can be measured using the first magnetic sensor have differing orientations. Likewise, the direction components that can be measured using the second magnetic sensor have differing orientations. The first magnetic sensor and the second magnetic sensor are arranged around the axis at different peripheral positions.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: March 17, 2020
    Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
    Inventor: Stephan Neuschaefer-Rube
  • Patent number: 10588541
    Abstract: A method and system for magnetically tracking a device of interest generating a plurality of pre-determined multi-frequency signals. The method and system transmits a plurality of magnetic fields from a transmitter circuit based on the corresponding pre-determined multi-frequency signals. The magnetic fields propagating through an area of examination encompassing the device of interest and a magnetic sensor coupled to the device of interest. The method and system generate a sensor signal at the magnetic sensor indicative of field strength of the magnetic fields transmitted by the transmitter circuit. Further, the method and system determine a position of the magnetic sensor relative to the transmitter circuit based on the multi-frequency signals and the sensor signal.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: March 17, 2020
    Assignee: General Electric Company
    Inventors: Peter William Lorraine, Floribertus P. M. Heukensfeldt Jansen
  • Patent number: 10571308
    Abstract: A correction apparatus for an angle sensor includes a correction processing unit, an indicator value generation unit, and a correction information determination unit. The correction processing unit performs correction processing on a plurality of detection signals to reduce an error of a detected angle value. The details of the correction processing are determined according to correction information. The indicator value generation unit generates, on the basis of the plurality of detection signals, an indicator value having a correspondence with the error of the detected angle value. The correction information determination unit generates an estimated indicator value using a function that takes one or more values each having a correspondence with the correction information as one or more variables, and determines the correction information by adaptive signal processing so as to reduce the difference between the indicator value and the estimated indicator value.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 25, 2020
    Assignee: TDK CORPORATION
    Inventor: Shinichirou Mochizuki
  • Patent number: 10564008
    Abstract: A transducer for an inductive displacement sensor includes a secondary winding of 2N turns of alternating directions extending in a zone of length Dtot, the winding including: a first coiled conductive section forming N half-turns, extending between a first end of the winding, situated at the midpoint of the length Dtot, and a first point of the winding, situated at one end of the length Dtot; a second section forming N half-turns, extending between the first point and a second intermediate point situated at the midpoint of the length Dtot; a third section forming N half-turns, extending between the second point and a third intermediate point situated at a second end of the length Dtot; and a fourth section forming N half-turns, extending between the third point and a second end of the winding situated at the midpoint of the length Dtot.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: February 18, 2020
    Assignee: HUTCHINSON
    Inventors: Yohan Maniouloux, Pascal Regache
  • Patent number: 10551221
    Abstract: Magnetic field sensor devices, corresponding systems and corresponding methods are discussed where a plurality of magnetic field sensors senses a magnetic field. An evaluation circuit generates a first signal component associated with a periodicity of a magnetic field, and a second signal component at least for periods of the magnetic field exceeding a threshold period length, the second signal component having a resolution smaller than one half period of the magnetic field.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: February 4, 2020
    Assignee: Infineon Technologies AG
    Inventors: Tobias Werth, Dirk Hammerschmidt, Helmut Koeck, Andrea Monterastelli
  • Patent number: 10533875
    Abstract: A sensor system including a movable member, a sensor, and an interpolator. The sensor is configured to generate a first output signal and a second output signal. The first output signal has a first phase angle, the second output signal has a second phase angle, and a first difference between the first phase angle and the second phase angle has a first value. The first value of the first difference includes an offset related to a mechanical incompatibility between the sensor and the movable member. The interpolator is configured to receive the first output signal and the second output signal. The interpolator is operable to apply a compensation factor to generate a third signal having a third phase. The compensation factor has a value that is based on the mechanical incompatibility between the sensor and the movable member.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: January 14, 2020
    Assignee: The Timken Company
    Inventors: Lei Wang, Alfred J. Santos, Mark E. Lacroix
  • Patent number: 10527459
    Abstract: This inductive position sensor is designed to measure the angular position of a shaft or the like and includes a support on which are realized, on the one hand, a primary winding, and on the other hand, at least two secondary windings in phase opposition with respect to each other. Each secondary winding is defined by a set of at least two loops in phase with each other. The secondary windings are connected in series and each arranged symmetrically with respect to a middle line so as to form each time a pattern on either side of this middle line, the two patterns having a separation between them in the area of said middle line. An assembly including such a sensor and a target with two oppositely directed helices.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: January 7, 2020
    Assignees: Continental Automotive France, Continental Automotive GmbH
    Inventors: Alain Fontanet, Jean-louis Roux
  • Patent number: 10514092
    Abstract: A transmission position sensor body assembly configured to be securely attached to a transmission housing includes a sensor body housing, a cap member and compression limiters. The sensor body housing has a central rim and a pair of outer receiving lobes that define a corresponding pair of bores. The cap member has a central body portion including integrally formed outer ears extending therefrom. The cam member is coupled to the sensor body. The compression limiters are coupled to the cap member at the respective outer ears and that extend through the bores of the sensor body housing. Fasteners are received through respective compression limiters. Clamping forces are transferred onto the cap member during the tightening of the fasteners to the transmission housing without acting on the sensor body housing.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: December 24, 2019
    Assignee: Eaton Corporation
    Inventors: Robert B. Craft, Christopher Robert Knapp, Patrick Martin Fergus
  • Patent number: 10508930
    Abstract: A method of manufacturing a proximity sensor and a manufacturing system for the proximity sensor capable of improving detection precision or expanding a detectable range are provided. A method of manufacturing a proximity sensor outputting presence or absence of a detection object or a position of the detection object as a detection result is provided. The manufacturing method includes: disposing the proximity sensor in a temperature-changeable environment; setting an environment of the proximity sensor to a plurality of different temperatures respectively and storing temperature detected by the temperature detection part of the proximity sensor in association with the detection result output by the control calculation part at each temperature; determining a characteristic parameter unique to a target proximity sensor based on the stored temperature and detection result; and setting the determined characteristic parameter for the target proximity sensor.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: December 17, 2019
    Assignee: OMRON Corporation
    Inventors: Ryota Hasegawa, Hiroyuki Tsuchida, Kazuaki Miyamoto, Yusuke Hayashi, Kenji Matsuoka
  • Patent number: 10502591
    Abstract: A sensor arrangement for determining a position and/or a change in the position of a measurement object is described, wherein the sensor arrangement has a magnet and a magnetic field sensor which can be moved relative to one another in a direction of movement. The magnet generates a magnetic field. Movements of the magnet and of the measurement object or movements of the magnetic field sensor and of the measurement object are coupled. To achieve the greatest possible measurement range with a characteristic curve which is as linear as possible at the same time, the sensor arrangement comprises a rod-shaped body which is made from a ferromagnetic material and has a considerably larger dimension in the longitudinal direction than in the transverse direction. A relative movement takes place between the rod-shaped body and the magnet, wherein the rod-shaped body can be connected to the magnet. The magnetic field from the magnet is at least partially directed in the direction of the magnetic field sensor.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: December 10, 2019
    Assignee: MICRO-EPSILON Messtechnik GmbH & Co. KG
    Inventors: Felix Mednikov, Johann Hofer, Christian Pfaffinger
  • Patent number: 10495697
    Abstract: Provided are a magnetic sensor, which is capable of accurately determining abnormalities, such as disconnection and a short circuit, of wiring of a magnetic sensor device, and the magnetic sensor device. An output control circuit of the magnetic sensor includes a voltage divider circuit, which is connected to an output terminal of the magnetic sensor, and an amplifier, which is configured to control a gate voltage of a MOS transistor, which is connected to the output terminal of the magnetic sensor, so that a voltage of the voltage divider circuit and a reference voltage become equal to each other, with the result that an output voltage of the magnetic sensor is determined by the reference voltage and a voltage dividing ratio of the voltage divider circuit.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: December 3, 2019
    Assignee: ABLIC INC.
    Inventors: Kentaro Fukai, Minoru Ariyama
  • Patent number: 10466071
    Abstract: Embodiments relate to magnetic field sensor devices, systems and methods that can more accurately detect edges of a target. In one embodiment, a sensor device comprises a first magnetic field sensor element and a second magnetic field sensor element proximate a target, such as a toothwheel, to sense rotation of the target. The sensor device can be considered a two-dimensional magnetic field sensor in embodiments, in that the first magnetic field sensor element can be sensitive to a first magnetic field component (e.g., the Bx component), and the second magnetic field sensor element can be sensitive to a second magnetic field component (e.g., the Bz component). In other embodiments, sensor system 600 can be a three-dimensional magnetic field sensor. The sensor device can be arranged with respect to the target such that the signal from one or the other of the first and second magnetic field sensor elements can be used to determine a switching threshold depending on whether a detected edge is rising (i.e.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: November 5, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Patent number: 10433762
    Abstract: A medical instrument includes an insertion portion, first transmitting coils, second transmitting coils, a signal control unit, a position detection unit, a memory, and a position estimating unit. The signal control unit controls the first transmitting coils to transmit magnetic fields during a first predetermined period and controls the second transmitting coils to transmit magnetic fields during a second predetermined period. The position detection unit detects positions of the first transmitting coils during the first predetermined period and detects positions of the second transmitting coils during the second predetermined period. The memory stores the positions of the first transmitting coils. The position estimating unit estimates a shape of the insertion portion based on the positions of the second transmitting coils and the positions of the first transmitting coils stored in the memory.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: October 8, 2019
    Assignee: OLYMPUS CORPORATION
    Inventors: Soichi Ikuma, Jun Hasegawa
  • Patent number: 10428601
    Abstract: System, method, and apparatus for connecting tubulars, of which the method includes determining an elevation of a drilling device above a rig floor, lowering a first tubular connected to the drilling device toward a second tubular by lowering the drilling device, determining that the first tubular is in proximity to the drill string based at least in part on an elevation of the drilling device, determining that the first tubular is in proximity to the second tubular based at least in part on a magnetic flux or an electrical current applied to the tubular, the second tubular, or both, and connecting the first and second tubulars together.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: October 1, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Jacques Orban
  • Patent number: 10401193
    Abstract: The invention relates to an integrated circuit arrangement for a position sensor for measuring angles or distances, wherein the circuit arrangement comprises: a measurement substrate, which defines a measurement plane and which is configured such that it comprises a plurality of corners; at least three Hall elements, which are arranged on the measurement substrate such that areas of the Hall elements, which are sensitive to a magnetic field, extend in the measurement plane and/or form a part of the measurement plane, and that a virtual polygon, which is formed by the Hall elements, is rotated with respect to the measurement substrate such that the Hall elements are each located at an outer edge of the measurement substrate and have a distance to a center of an edge of the corresponding outer edge amounting to at maximum 25% of a total length of the corresponding outer edge, wherein the Hall elements are, in an intended use of the circuit arrangement during the measurement, configured to respectively output
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 3, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Walter Mehnert, Thomas Theil
  • Patent number: 10401194
    Abstract: A sensor is provided for determining at least one rotation characteristic of a rotating element. The sensor includes a sensor wheel, which is connectable to the rotating element, including at least one first reading track. The reading track includes a first plurality of magnetic event timers. The sensor furthermore includes at least one magnetic sensor for detecting magnetic events generated by the first plurality of magnetic event timers. The first reading track is designed in such a way that, over a complete circumference of the sensor wheel, a magnetic field strength of the first plurality of event timers changes step-by-step from a first maximum north pole to a first maximum south pole.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: September 3, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Holger Schaefer
  • Patent number: 10385991
    Abstract: Valve systems include at least one component comprising a conductive material and at least one inductance-to-digital converter (LDC) configured to wirelessly sense a position of at least a portion of the conductive material. The valve system is configured to determine at least one force applied to a portion of the valve system based at least partially on the position of the at least a portion of the conductive material. Methods of determining a force associated with a valve system include wirelessly sensing a position of at least a portion of the conductive material with the at least one inductance-to-digital converter (LDC) sensor and determining a force applied to a portion of the valve system based at least partially on the position of the at least a portion of the conductive material.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: August 20, 2019
    Assignee: Flowserve Management Company
    Inventor: William T. Dolenti
  • Patent number: 10386169
    Abstract: A first, a second, and a third computing circuit respectively generate a first post-computation signal with a second harmonic component reduced as compared with first and second signals, a second post-computation signal with the second harmonic component reduced as compared with third and fourth signals, and a third post-computation signal with the second harmonic component reduced as compared with fifth and sixth signals. A fourth and a fifth computing circuit respectively generate a fourth post-computation signal with a third harmonic component reduced as compared with the first and second post-computation signals, and a fifth post-computation signal with the third harmonic component reduced as compared with the second and third post-computation signals. A sixth computing circuit determines a detected angle value based on the fourth and fifth post-computation signals.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: August 20, 2019
    Assignee: TDK CORPORATION
    Inventors: Yohei Hirota, Homare Tokida, Hiraku Hirabayashi
  • Patent number: 10378929
    Abstract: A movement detection unit includes a movable body, a first sensor, a second sensor, and a signal processor. The movable body performs a movement in a first direction. The first sensor detects a first magnetic field change which is caused by the movement of the movable body and outputs a first signal. The second sensor is provided in the first direction at a location different from a location of the first sensor. The second sensor detects a second magnetic fled change which is caused by the movement of the movable body and outputting a second signal. The signal processor includes a signal generating circuit that generates a third signal and a fourth signal on a basis of the first signal. The third signal and the fourth signal have waveforms different from each other.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: August 13, 2019
    Assignee: TDK CORPORATION
    Inventor: Takakazu Imai
  • Patent number: 10371498
    Abstract: Disclosed is a linear inductive sensor having, on the one hand, a fixed part of transformer type with a primary circuit and at least two secondary circuits, the primary circuit being flowed through by a high-frequency alternating current capable of inducing an electrical voltage in each of the at least two secondary circuits and, on the other hand, a moving part with a target intended to be fixed on a mechanical component executing a movement in rotation about an axis, which the inductive sensor measures angularly. The target is a metal spiral carried by a circular face of a ring having a central recess, the ring being intended to be fixed on the component while being concentric therewith, the spiral projecting axially from the ring while making at least one revolution around and moving away from the recess.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: August 6, 2019
    Assignees: CONTINENTAL AUTOMOTIVE FRANCE, CONTINENTAL AUTOMOTICE GMBH
    Inventors: Andreas Moser, Alain Fontanet, Simon-Didier Venzal
  • Patent number: 10338642
    Abstract: An electronic device incorporating a magnet and a Hall-effect sensor to determine a location of a portion of the electronic device. The electronic device comprises a magnet mechanically coupled to a first portion of the electronic device and a Hall-effect sensor coupled to a second portion of the electronic device where the first portion and the second portion are moveable with reference to each other and where the Hall-effect sensor receives a magnetic field of the magnet. The device further comprises an electronic stage that outputs a comparison threshold signal based on peak detecting an output of the Hall-effect sensor using a long term adjustment and resetting the long term adjustment to a current output of the Hall-effect sensor in response to a short term adjustment and a switch electronic stage that switches in response to the output of the Hall-effect sensor exceeding the comparison threshold output.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: July 2, 2019
    Assignee: Honeywell International Inc.
    Inventors: Gregory Furlong, Lamar Floyd Ricks, Jason Chilcote
  • Patent number: 10337495
    Abstract: The present disclosure is directed to a system and method for reducing vortex-induced vibrations of a tower of a wind turbine. The wind turbine has a nacelle mounted atop the tower. The nacelle has a rotor with a rotatable hub having at least one rotor blade mounted thereto. The rotor blade has a first pitch position. Thus, the method includes measuring, via one or more sensors, an acceleration of the nacelle. The method also includes determining a rotor speed of the rotor. Further, the method includes determining a second pitch position for the rotor blade based on the acceleration of the nacelle and the rotor speed and pitching the rotor blade to the second pitch position if the rotor speed is below a speed threshold and the acceleration of the nacelle is above an acceleration threshold. As such, the second pitch position disturbs vortices caused by interactions between the tower and the rotor blade as the rotor blade passes in front of the tower so as to reduce vortex-induced vibrations of the tower.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: July 2, 2019
    Assignee: General Electric Company
    Inventors: Jorge Gonzalez Castro, Hubert Oing
  • Patent number: 10330730
    Abstract: A method and an apparatus for determining the electric resistances of coil connections (RSi) of connections (1-12) of coils (Bi) of a winding (102) of a dynamo electric machine, which includes a plurality of coils (Bi) connected in series. A first current (I1) is generated through a first coil connection (1) of a first coil (B1) of the winding (102). Furthermore, a second current (I2) is generated through a first coil connection (3, 7) of a second coil (B2, B6) of the winding in such a way as to eliminate the current flowing through a portion (B8-B11) of the winding, which is proximate to the first coil connection (1) of the first coil (B1) and the first coil connection (3,7) of the second coil (B2, B6). A third current (I3) is also generated in a second coil connection (2) of the first coil (B1). The generating of the first current (I1), the generating of the second current (I2), and the generating of the third current (I3) are made with respect to a common potential (13).
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: June 25, 2019
    Assignee: ATOP S.p.A.
    Inventor: Federico Sbalchiero
  • Patent number: 10327667
    Abstract: A device for magnetizing a tissue-penetrating medical device is disclosed including a housing having a proximal portion and a distal portion; a magnetic field generator contained within the distal portion of the housing and a tissue penetrating subassembly including a hub and a tissue penetrating medical device having a proximal end and a distal end. The hub is detachably connected to the distal portion of the housing and the proximal end of tissue penetrating medical device extends proximally from the hub such that the proximal end of the tissue penetrating medical device is exposed to the magnetic field to magnetize the distal end of the tissue penetrating medical device. Methods of magnetizing tissue-penetrating medical devices are also disclosed.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: June 25, 2019
    Assignee: Becton, Dickinson and Company
    Inventor: Ralph L. Sonderegger
  • Patent number: 10329801
    Abstract: Determining a position of a deadbolt used to lock and unlock a door is disclosed. An electromechanical lock can include a deadbolt that can retract or extend along a linear path as the door is to be locked and unlocked. A sensor such as an accelerometer can rotate along a non-linear path as the deadbolt moves along a linear path. The accelerometer can determine a gravity vector that can be indicative of a position of the accelerometer along the non-linear path. A controller can then determine a position of the deadbolt based on the gravity vector.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: June 25, 2019
    Assignee: CALIFORNIA THINGS, INC.
    Inventors: John H. Martin, Kenneth D. Goto, Thomas E. King, Jordan R. Fountain, Wael S. Barakat
  • Patent number: 10324143
    Abstract: In various embodiments, a Hall sensor arrangement for the redundant measurement of a magnetic field may include a first Hall sensor on a top side of a first semiconductor substrate; a second Hall sensor on a top side of a second semiconductor substrate; a carrier having a top side and an underside; wherein the first Hall sensor is arranged on the top side of the carrier and the second Hall sensor is arranged on the underside of the carrier; and wherein the measuring area of the first Hall sensor projected perpendicularly onto the carrier at least partly overlaps the measuring area of the second Hall sensor projected perpendicularly onto the carrier.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: June 18, 2019
    Assignee: Infineon Technologies AG
    Inventors: Berthold Astegher, Helmut Wietschorke
  • Patent number: 10309802
    Abstract: Embodiments relate to magnetic field angle sensors, including off-axis and on-axis sensors. In an embodiment, a magnetic field angle sensor comprises two sensor units, and each sensor unit comprises two sensor elements. The sensor units are spaced apart from one another and arranged proximate a magnet, wherein the two sensor elements of each sensor unit are responsive to the same magnetic field component induced by a magnet coupled to a shaft as the shaft rotates. In each sensor unit, a sum and a difference of the output signals of the two sensor elements can be calculated to determine a coarse estimation of a rotation angle, and a more refined estimation can be obtained by combining the coarse estimations of each sensor unit. In embodiment, the magnetic field angle sensor comprises a control unit or other circuitry to carry out this combining.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: June 4, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Patent number: 10302458
    Abstract: A rotation angle detection sensor includes a magnet body subjected to magnetization in an in-plane direction, a first Hall element and a second Hall element separated from each other and arranged offset to one of spaces divided by an imaginary plane including a rotation axis, and a third Hall element located in a position away from a straight line passing through the first Hall element and the second Hall element. A storage section stores a rotation angle that is related to electric signals having a phase difference therebetween, among electric signals of the first Hall element, the second Hall element, and the third Hall element. A detection section detects the electric signals of the first Hall element, the second Hall element, and the third Hall element and obtains from the storage section the rotation angle that is related to the detected electric signals.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: May 28, 2019
    Assignee: Toyo Dense Co., Ltd.
    Inventors: Toshiya Yoshida, Shoji Kishi
  • Patent number: 10267616
    Abstract: A displacement sensor includes a coil, an inverter electrically connected to the coil, the inverter being configured to generate an oscillation signal, a reducer electrically connected between the coil and an output terminal of the inverter, the reducer being configured to reduce the strength of the oscillation signal, and a frequency detector electrically connected to the inverter, the frequency detector being configured to detect an oscillation frequency of an oscillator circuit in response to a distance between a measurement target and the coil, the oscillator circuit including the coil, the inverter, and the reducer and having an oscillation frequency of 30 MHz or higher.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: April 23, 2019
    Assignee: JAPAN SYSTEM DEVELOPMENT CO., LTD.
    Inventors: Yoshiichi Yoshida, Hiroki Tomino
  • Patent number: 10166710
    Abstract: Apparatus and method for detecting a position of an actuator piston driving a valve pin in an injection molding system. The apparatus includes an actuator housing having a body portion, surrounding an axial bore, of a substantially non-magnetic and/or magnetically permeable material, a piston, movable within the axial bore for driving a valve pin, the piston including a magnetic member generating a magnetic field such that axial movement of the piston in the bore modifies the magnetic field according to the position of the piston relative to a detection position, and a magnetic field detector attached to an exterior surface of the body portion at the detection position for detecting the magnetic field associated with the position of the piston and generating an output signal determined by the piston position.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: January 1, 2019
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Zhuang Rui Tan, Lin Yang
  • Patent number: 10161762
    Abstract: A method for computing a correction factor (KF) for an angular measuring system (10) comprising a measurement of a first output value (W1) in a first measuring position (20) and a measurement of a second output value (W2) in a second measuring position (30). An actual value (DI) is formed from the difference between the first output value (W1) and the second output value (W2), and a target value (DS) is formed from the difference of target values (S1, S2) in the first measuring position (20) and in the second measuring position (30). The correction factor (KF) is computed from the ratio of the target value (DS) to the actual value (DI).
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: December 25, 2018
    Assignee: TDK-Micronas GmbH
    Inventor: Yan Bondar
  • Patent number: 10119841
    Abstract: A magnetic position detection device includes two magnetic scales 1a, 1b on which N and S magnetic poles are disposed alternately, magnetism sensing element groups 2a, 2b for measuring variation in magnetic fields formed respectively by the magnetic scales 1a, 1b, and a position calculation device 3 for calculating absolute positions of magnetism sensing elements 21 on the magnetic scales 1a, 1b from output values output by the magnetism sensing elements 21, wherein a difference between the respective numbers of magnetic poles on the magnetic scales 1a, 1b is 2, and the magnetism sensing elements 21 are disposed such that arrangement intervals between the magnetism sensing elements 21 of the respective magnetism sensing element groups 2a, 2b each take a value obtained by dividing a length of one magnetic pole equally by the number of magnetism sensing elements 21.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: November 6, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Shohei Tsukamoto, Takafumi Hara
  • Patent number: 10114323
    Abstract: A sheet size detector to detect a sheet size of a recording medium includes a movable member to move in a sheet size detection direction to a position corresponding to the sheet size, a magnetic flux detector including a coil disposed on a board face parallel to the sheet size detection direction to generate a magnetic flux in a direction perpendicular to the board face, and a target to oppose the board face and including a material to affect the magnetic flux. The target is different in configuration in the sheet size detection direction to change the magnetic flux in the direction perpendicular to the board face as the movable member moves. The magnetic flux detector outputs a signal corresponding to changes in magnetic flux in the direction perpendicular to the board face, and the signal corresponds to the position of the movable member.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: October 30, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Tetsuro Hirota, Yu Wakabayashi, Shintaroh Yamada, Shun Kobayashi
  • Patent number: 10083253
    Abstract: In the method for producing a set of cooperating embossing rollers, a modelling device is used for parameterizing the embossing rollers, the device comprising a test bench having a pair of rollers which are put under hydraulic pressure that can be measured and set, in order to determine from the measurement data the parameters for producing the embossing rollers. The use of a modelling device for obtaining the parameters for producing a set of embossing rollers makes it possible to use a very large variety of embossing patterns and foils with diverse properties as a basis and, by conducting tests on this very test bench, be able to efficiently narrow down and predetermine the properties of a final embossing device, preferably operated without hydraulics.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: September 25, 2018
    Assignee: Boegli-Gravures S.A.
    Inventors: Charles Boegli, Werner Steffen
  • Patent number: 10078094
    Abstract: A sensor system (01) for measuring the rotational speed of a rotatable component having a pole wheel (02) comprising a carrier (04) with at least one path of alternating magnetic north and south poles (05), and at least one magnetic field sensor (03) for sampling the path of the pole wheel (02) is provided. The sensor system (01) provides that the rotational direction in front of and behind the magnetic field sensor (03) a ferromagnetic flux-conducting component (07) is arranged in each case opposite the path, the ferromagnetic flux-conducting components (07) being arranged in the installation space between the magnetic field sensor (03) and the pole wheel (02), the distance between the ferromagnetic flux-conducting components (07) corresponding to the width of one magnetic pole (05) of the pole wheel (02).
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: September 18, 2018
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Benjamin Kaufner
  • Patent number: 10073059
    Abstract: An apparatus and method detect defects in a metal surface. The apparatus is configured to move an eddy coil relative to an underlying metallic surface along a plurality of generally parallel and adjacent scan paths, and to receive from the eddy coil an oscillating signal induced at said coil as it is moved along each path. A representation of the received oscillating signal in relation to each one of a plurality of adjacent scan areas within each path is recorded, and a two-dimensional grid-like map showing the signal representations relative to each scan area is displayed. Defect location is facilitated by a further function of the apparatus and method, by which user input to an interface causes a light source to illuminate a selected part of the metallic surface.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: September 11, 2018
    Assignee: SARCLAD LIMITED
    Inventor: Robert Northern
  • Patent number: 10067256
    Abstract: A system includes a proximity probe. The system also includes a probe information element. The probe information element is coupled to the proximity probe. The probe information element includes first data corresponding to one or more first error characteristics of the proximity probe.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: September 4, 2018
    Inventor: Lysle R. Turnbeaugh