Patents Examined by Christopher E Mahoney
  • Patent number: 10921365
    Abstract: A method for testing a printed circuit board is provided. The method includes accessing a list of conductive lands of a printed circuit board to be tested and forming a list of pairs of adjacent conductive lands, based on adjacency assessment in the list of conductive lands. The method includes performing high-potential testing on the printed circuit board, on each of the pairs of adjacent conductive lands.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: February 16, 2021
    Assignee: Arista Networks, Inc.
    Inventor: David A. Cananzi
  • Patent number: 10908233
    Abstract: A Z detection unit includes magnetoresistive elements provided on inclined side surfaces of Z detection recesses. An X detection unit includes magnetoresistive elements provided on inclined side surfaces of X detection recesses. A Y detection unit includes magnetoresistive elements provided on inclined side surfaces of Y detection recesses. Directions of fixed magnetization of fixed magnetic layers included in the magnetoresistive elements are set to directions shown by arrows with solid lines.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: February 2, 2021
    Assignee: ALPS ELECTRIC CO., LTD.
    Inventor: Eiji Umetsu
  • Patent number: 10901030
    Abstract: An integrated circuit (IC) device, such as a wafer, die, or the like, includes a viscoelastic pad upon a contact. The viscoelastic pad includes a viscoelastic material and an electrically conductive material within the viscoelastic material. The viscoelastic pad provides for a probe needle of an IC device tester to be electrically connected to the IC device contact without the probe needle directly contacting the IC device contact. The viscoelastic pad may be probed multiple instances by the probe needle and may be washed or otherwise removed from the IC device after testing is completed. The viscoelastic pad may be formed upon the IC device by forming the viscoelastic material within a mask, aligning the viscoelastic pad to the IC device contact, and ejecting the viscoelastic material from the mask upon the IC device contact.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: January 26, 2021
    Assignee: International Business Machines Corporation
    Inventors: Max S. Cioban, Jonathan Fry, Michael Rizzolo, Tuhin Sinha
  • Patent number: 10901312
    Abstract: A speckle damping system for dampening speckle on a projection screen for a projection display system employing coherent or partially coherent light sources (e.g., lasers, LEDs) are disclosed. In one embodiment, a rotatably coupled system is disclosed, comprising: a set of actuators; a set of rotatably coupled mounts, each of said set of rotatably coupled mount capable of mounting at least one said actuator; and wherein said at least one actuator mounted on said rotatably coupled mount is in moveable mechanical communication with said projection screen. In another embodiment, a linearly coupled system is disclosed comprising: a set of actuators; a set of linearly coupled mounts, each of said set of linearly coupled mount capable of mounting at least one said actuator; and wherein said at least one actuator mounted on said linearly coupled mount is in moveable mechanical communication with said projection screen.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: January 26, 2021
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Brad Basler, Trevor Davies, Douglas J. Gorny, Wilson Allen
  • Patent number: 10884051
    Abstract: Embodiments of the present disclosure provide a line detecting tool and method for a light emitting diode substrate. The line detecting tool for a light emitting diode substrate includes a detecting light source and a liquid crystal plate. The liquid crystal plate is configured to be arranged between the detecting light source and a light emitting diode substrate to be detected and to be in contact with each set of positive electrode and negative electrode of the light emitting diode substrate, so as to transform from a light transmission state to a light shielding state or from the light shielding state to the light transmission state after energizing the each set of positive electrode and negative electrode of the light emitting diode substrate to be detected. The detecting light source is configured to illuminate the liquid crystal plate.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: January 5, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhiqiang Wang, Xuerong Wang, Xin Ma, Chuan Sun, Lei Chen, Fei Gao, Bochao Rui, JinLong Zheng
  • Patent number: 10884320
    Abstract: An apparatus includes a camera unit including an optical lens, a circuit board unit connected to the camera unit and disposed at a periphery of the camera unit, and a casing including a first housing body and a second housing body attachable to the first housing body. The first housing body and the second housing body are configured to enclose a receiving space to receive the camera unit and the circuit board unit, and jointly define a front opening that intersects with an optical axis of the optical lens.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: January 5, 2021
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Yin Tang, Hualiang Qiu, Feihu Yang
  • Patent number: 10884331
    Abstract: Screen vibration systems are provided that can vibrate theatre screens while reducing the presence of image artifacts that may otherwise be visible as result of vibrating the screen. In one example of a screen vibration system, the system includes a screen, a permanent magnet mounted to the screen, and a magnetic source positioned with respect to the permanent magnet. The screen is moveable in response to a changing magnetic field from the magnetic source.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: January 5, 2021
    Assignee: IMAX THEATRES INTERNATION LIMITED
    Inventors: Hamed Herati, Denis Gilles Tremblay, Oliver Nicholas Komarnycky
  • Patent number: 10883813
    Abstract: The present application discloses a sensor for detecting a bending in a flexible display apparatus. The sensor includes a first flexible base substrate, and a first electrode layer on a side of the first flexible base substrate. The first electrode layer includes an array of a plurality of first electrodes configured to detect a first bending toward a first bent direction relative to a surface of the first flexible base substrate.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: January 5, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., Beijing BOE Display Technology Co., Ltd.
    Inventors: Wenpeng Xu, Hui Zhao, Zhibo Zhang
  • Patent number: 10882404
    Abstract: A capacitor is connected between an output terminal of an impedance element and an electricity storage unit mounted in a vehicle, and the electricity storage unit is electrically insulated from a chassis of the vehicle. An earth fault determiner determines that an earth fault occurs, when a detection value based on a peak-to-peak value of a voltage at a node between the impedance element and the capacitor is less than or equal to a first reference value and more than or equal to a second reference value. The first reference value is set based on the peak-to-peak value of the voltage at the node when an insulation resistance between the electricity storage unit and the chassis of the vehicle is a minimum allowable value. The second reference value is set based on the peak-to-peak value of the voltage at the node when a complete earth fault occurs between the electricity storage unit and the chassis of the vehicle.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: January 5, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Naohisa Morimoto
  • Patent number: 10877095
    Abstract: In a power storage system, a first switch is connected between a first node and a second node. The first node is connected to a positive terminal of a power storage unit, and the second node is connected to a positive terminal of a load. A second switch is connected between a third node and a fourth node. The third node is connected to a negative terminal of the power storage unit, and the fourth node is connected to a negative terminal of the load. A first comparator circuit compares a first voltage based on a voltage between the first and fourth nodes with a first reference voltage. A second comparator circuit compares a second voltage based on a voltage between the second and third nodes with a second reference voltage.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: December 29, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Katsuaki Hamamoto
  • Patent number: 10877076
    Abstract: A fiber-optic current sensor includes an opto-electronics module, a sensor head and a connecting fiber connecting the opto-electronics module to the sensor head. The sensor includes a first and a second beam splitter, between which the measuring light runs in two branches. One fiber connector is arranged in each branch, for connecting a cable assembly to the opto-electronics module. The optical path lengths between the two connectors and the second beam splitter are different, such that light waves cross-coupled into an orthogonal polarization mode due to angular misalignment of the connectors become incoherent with the non-cross-coupled waves returning from the sensor head.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: December 29, 2020
    Assignee: ABB Power Grids Switzerland AG
    Inventors: Klaus Bohnert, Philippe Gabus
  • Patent number: 10877098
    Abstract: A method for detecting a fault in an AC/AC exciter having an exciter rotor and an exciter stator. A signal reflecting the current or voltage, is obtained at an exciter rotor winding or at an exciter stator winding. A frequency analysis is applied and on the basis of a presence of a frequency component, a rotor current or voltage signal, at a first frequency fs*(2?s), where fs is a supply frequency of the exciter stator and s is an exciter slip, it is determined whether the exciter suffers from an inter-turn short circuit in an exciter stator winding or not. On the basis of a presence of a frequency component, in the case of a stator current signal or a stator voltage signal, at a second frequency fs*(1?2*s), it is determined whether the exciter suffers from an inter-turn short circuit in an exciter rotor winding or not. Presence of frequency components at the first and/or second frequencies in windings of an AC/AC exciter indicate the mentioned fault conditions.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: December 29, 2020
    Assignee: ABB Schweiz AG
    Inventors: Pedro Rodriguez, Matti Kivioja, Janne Holla, Tapio Rauhala, Ilari Karkkainen
  • Patent number: 10866275
    Abstract: An automatic test equipment (ATE) contactor adapter compatible with at least one test board. The contactor adapter includes a contactor adapter body having a first side and a second side. The contactor adapter body includes: 1) a first set of contact components disposed on the first side in an arrangement to contact conductive pads of the at least one test board; and 2) a second set of contact components disposed on the second side and coupled to the first set of contact points. The contactor adapter also includes an adapter interface disposed on the contactor adapter body. The adapter interface includes a third set of contact components coupled to the second set of contact components. The ATE contactor adapter is configured to convey signals between a device under test (DUT) and the at least one test board via the first, second, and third sets of contact components.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: December 15, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Raymond Joseph Ochotorena, Jr., Kevin Brady, William Edward Brumley
  • Patent number: 10865590
    Abstract: A method for detecting the approach and/or contact of a user's hand close to a motor vehicle door handle. The handle including: an electrode having a capacitance, and a device for measuring the variation in capacitance, a low-frequency antenna situated close to the electrode, the emissions of the low-frequency antenna bringing about disturbances in the operation of the device for measuring the variation in the capacitance. The method proposes that a new adaptive approach detection threshold be calculated, depending on an average of the previous measured variations in the capacitance, calculated over a predetermined time interval, the measured variations being weighted by a factor depending on a difference between each measured variation and the average of the variations calculated previously over a previous predetermined time interval, the approach detection being confirmed if the measured variation is higher than the new adaptive threshold.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: December 15, 2020
    Inventors: Gabriel Spick, Olivier Gerardiere, Carlos Eduardo Rodrigues
  • Patent number: 10852632
    Abstract: A transparent screen sheet that displays images projected from a front side of the transparent screen sheet and/or a rear side of the transparent screen sheet to a user on the front side, and causes the user on the front side to view a rear background behind the rear side. The transparent screen sheet includes an image display layer configured to display the images; and a resin film that holds the image display layer. A difference between a maximum value and a minimum value of retardations of the resin film measured by irradiating a main surface of the resin film with a light with a wavelength of 460 nm in a direction orthogonal to the main surface, within a region on the main surface that overlaps with the image display layer, is one fourth of the wavelength of the light or less.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: December 1, 2020
    Assignee: AGC Inc.
    Inventors: Yukihiro Tao, Kenta Sekikawa, Yuriko Kaida
  • Patent number: 10847066
    Abstract: A disclosed display device may include a display panel including a plurality of sub-pixels, and a back cover configured to support the display panel and configured be wound or unwound along with the display panel. The display device may further include a base plate on a first surface of the back cover to support the back cover and a top cover on a second surface of the back cover opposite the first surface so that the back cover is between the base plate and the top cover. The top cover may be fixed to the back cover. The top cover may have a curved outer peripheral surface.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: November 24, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: YoungShin Lee, ChounSung Kang, Mi-Na Shin, SunBok Song, GeunChang Park
  • Patent number: 10845385
    Abstract: A probe card device is provided, and includes a plurality of conductive probes and a flat signal transfer structure that includes a transfer plate and a retaining cover. The transfer plate has a first surface and a second surface that is opposite to the first surface. The transfer plate includes a receiving slot recessed from the first surface and a plurality of signal circuits each having a signal contact arranged at a bottom of the receiving slot. A portion of the transfer plate arranged around and adjacent to the receiving slot is defined as a supporting portion. The retaining cover has a plurality of thru-holes and is disposed on the supporting portion. The retaining cover and the receiving slot of the transfer plate jointly and surroundingly define a receiving space, and the signal contacts of the transfer plate are arranged in the receiving space.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: November 24, 2020
    Assignee: CHUNGHWA PRECISION TEST TECH. CO., LTD.
    Inventors: Wen-Tsung Lee, Kai-Chieh Hsieh, Wei-Jhih Su
  • Patent number: 10830663
    Abstract: A leak sensing cable for a leak detector having an impedance sensor operable to measure changes in impedance along a sensing circuit. The leak sensing cable comprises: an inner core, having a first conductive thread electrically connected to the sensing circuit; an inner sheath, coaxially located around the inner core, the inner core being comprised of a permeable, non-conductive material; an outer sheath, coaxially located around the inner sheath, the outer sheath comprising a permeable braided material and having a second conductive thread woven into the permeable braided material, the second conductive thread being electrically connected to the sensing circuit. The first conductive thread is substantially electrically isolated from the second conductive thread when the leak sensing cable is dry and less electrically isolated from the second conductive thread when the leak sensing cable becomes wet.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: November 10, 2020
    Assignee: ECOBEE INC.
    Inventors: Lucas Coelho Cavalheiro, Brent Laurence
  • Patent number: 10830825
    Abstract: A battery sensor device includes; a bus bar having a resistor and disposed in a power supply path from a battery; a sensor substrate configured to detect current flowing through the resistor; an output end configured to externally output a signal based on current detected by the sensor substrate; and a battery terminal unit configured to electrically couple the bus bar and the battery. A sensor unit including the bus bar and the output end is separate from the battery terminal unit. The sensor unit has a structure capable of being fixed onto the battery terminal unit in two modes in a reverse relation in a plane.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: November 10, 2020
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Shinya Kimura
  • Patent number: 10822014
    Abstract: A vehicle steering wheel comprising: a hoop, a plurality of presence sensors, each one arranged so as to detect a proximity and/or contact between a user's limb and the hoop, an outer sheath covering the plurality of presence sensors and stitched with at least one seam that extends around at least part of the hoop, wherein the plurality of presence sensors is mounted on the same support, and in that at least one of the presence sensors is arranged facing at least part of the seam of the outer sheath.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: November 3, 2020
    Assignee: AUTOLIV DEVELOPMENT AB
    Inventors: Jonathan Boittiaux, Fabrice Moinard