Patents Examined by Daniel L Murphy
  • Patent number: 10859723
    Abstract: A downhole tool system may include a Stoneley wave emitter, located in a downhole tool, designed to emit Stoneley waves into a borehole. The downhole tool system may include one or more Stoneley wave sensors, located in the downhole tool, and a processor. The processor may be designed to receive signals from the one or more Stoneley wave sensors based on the detection of the Stoneley waves. The processor may use the signals to obtain a temporal measurement of the Stoneley waves. Based at least in part on the temporal measurement, the processor may calculate a distance from the downhole tool or a bottom-hole assembly to the bottom of the borehole.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: December 8, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Bertrand du Castel, Christoph Klieber, David Linton Johnson, Martin G. L├╝ling
  • Patent number: 10852403
    Abstract: Examples relate to three-dimensional (3D) scan tuning. In some examples, preliminary scan data is obtained while the real-world object is continuously rotated in view of a 3D scanning device, where the 3D scanning device performs a prescan to collect the preliminary scan data. The preliminary scan data is then used to determine physical characteristics of the real-world object, and a camera operating mode of the 3D scanning device is modified based on the physical characteristics. At this stage, 3D scan data for generating a 3D model of the real-world object is obtained, where the 3D scanning device scans the real-world object according to the camera operating mode.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: December 1, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Jinman Kang
  • Patent number: 10852431
    Abstract: An actuator comprises: a torsion spring fixed to a top yoke as a support member; a permanent magnet coupled to the torsion spring where the permanent magnet is placed with an N-pole and an S-pole thereof across a rotational axis of the torsion spring; a drive circuitry configured to apply a drive signal with periodically varying voltage or current; and a mirror unit comprising a first mirror and second mirrors, the first mirror being near a center of the torsion spring, and the second mirrors being around the first mirror and parallel to the first mirror. A plane including a reflecting surface of the second mirrors is closer to the rotation axis of the torsion spring than a plane including a reflecting surface of the first mirror, and the mirror unit reciprocates in accordance with application of the drive signal.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: December 1, 2020
    Assignee: DOLPHIN CO., LTD.
    Inventor: Zhihui Duan
  • Patent number: 10845467
    Abstract: The invention relates to a method and a device for determining a return time of a returning light pulse by a Single Photon (SPL) LiDAR scanner, the SPL scanner comprising of a low photon count detector for converting low amounts of photons or single photons to electrical signals, and a control and processing unit for processing the data and for determining the return time of the returning light pulse. The control and processing unit identify detected photons potentially representing a return pulse event and create a return pulse signal based on a criterion involving a temporal probability distribution for the detected photons, identify a rising edge and a falling edge of the return pulse signal, and determine the return time for each return pulse event based on the rising edge and the falling edge of the return pulse signal.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: November 24, 2020
    Assignee: AIRBORNE HYDROGRAPHY AB
    Inventor: Andreas Axelsson
  • Patent number: 10845471
    Abstract: Computer-implemented methods and systems for at least partially removing extrinsic static noise from data obtained by an optical time-of-flight sensor using full-waveform analysis. The method comprises finding a mathematical representation of the electromagnetic crosstalk present in victim calibration traces and caused by aggressor photosensitive element using aggressor calibration traces and victim calibration traces, determining a predetermined threshold for the amplitude of the aggressor calibration trace at which the electromagnetic crosstalk is present in the victim calibration traces, predicting the extrinsic static noise generated by the aggressor signal on the synchronized victim operation trace using the mathematical representation to generate a predicted crosstalk signal, removing the predicted crosstalk signal from the synchronized victim operation trace to output a denoised signal.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: November 24, 2020
    Assignee: LEDDARTECH INC.
    Inventors: Vincent Simard-Bilodeau, Samuel Gidel
  • Patent number: 10845459
    Abstract: A detector (110) for determining a position of at least one object (118) is disclosed. The detector (110) comprises: at least one optical sensor (112), the optical sensor (112) being adapted to detect a light beam (150) traveling from the object (118) towards the detector (110), the optical sensor (112) having at least one matrix (152) of pixels (154); and at least one evaluation device (126), the evaluation device (126) being adapted to determine a number N of pixels (154) of the optical sensor (112) which are illuminated by the light beam (150), the evaluation device (126) further being adapted to determine at least one longitudinal coordinate of the object (118) by using the number N of pixels (154) which are illuminated by the light beam (150).
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: November 24, 2020
    Assignee: BASF SE
    Inventors: Ingmar Bruder, Erwin Thiel, Stephan Irle, Robert Send
  • Patent number: 10845483
    Abstract: A method for reading a demodulation pixel of a distance sensor for determining a distance, in particular for determining the difference between two charge quantities independently of the total magnitude of the charge quantities, and also a distance sensor are proposed. For faster signal processing, provision is made for applying a variable control voltage to the transfer gates for influencing the potential wall, and lowering the respective potential walls of the corresponding transfer gates, before and/or until from the storage gates in each case charge carriers can surmount the respective potential wall of the corresponding transfer gate and pass to the assigned floating diffusion.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: November 24, 2020
    Assignee: ESPROS Photonics AG
    Inventors: Beat De Coi, Martin Popp
  • Patent number: 10837773
    Abstract: A vehicle computing system performs enhances relatively sparse data collected by a LiDAR sensor by increasing the density of points in certain portions of the scan. For instance, the system generates 3D triangles based on a point cloud collected by the LiDAR sensor and filters the 3D triangles to identify a subset of 3D triangles that are proximate to the ground. The system interpolates points within the subset of 3D triangles to identify additional points on the ground. As another example, the system uses data collected by the LiDAR sensor to identify vertical structures and interpolate additional points on those vertical structures. The enhanced data can be used for a variety of applications related to autonomous vehicle navigation and HD map generation, such as detecting lane markings on the road in front of the vehicle or determining a change in the vehicle's position and orientation.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: November 17, 2020
    Assignee: DEEPMAP INC.
    Inventor: Lin Yang
  • Patent number: 10823817
    Abstract: A method is disclosed for demultiplexing a signal. The method comprises receiving the signal being a sum of at least two sub-signals, whereby each sub-signal comprises a different repetitive pattern. The method also comprises sampling the signal during a time period, whereby the time period is such that the different repetitive patterns of each sub-signal occur at least once and whereby at least sub-signals are periodic during with a different specific frequency. The method further comprises periodically expanding the signal in a Fourier series and obtaining the different complex spectral components of the periodically expanded signal.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: November 3, 2020
    Assignee: KATHOLIEKE UNIVERSITEIT LEUVEN
    Inventor: Nobby Stevens
  • Patent number: 10823559
    Abstract: A measuring device for triangulation measurement comprises a light transmitter for emitting illuminating light; a transmitting optical system, which directs the illuminating light in a plurality of light strips to an object; a light receiver for generating a measurement image of the object by measuring of light thrown back from illuminated object areas; and an evaluation unit for determining form or position information of the object based on the measurement image. According to the invention, for the assignment of which area in the measurement image belongs to which light strip, the transmitting optical system is designed so that it directs the illuminating light in differently formed light strips to the object. In addition a corresponding method for triangulation measurement is described.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: November 3, 2020
    Assignee: Pepperl+Fuchs SE
    Inventors: Christoph Blankenburg, Hendrik Steinmann
  • Patent number: 10825441
    Abstract: The present disclosure provides systems and methods associated with acoustic transmitters, receivers, and antennas. Specifically, the present disclosure provides a transducer system for transmitting and receiving acoustic energy according to a determined acoustic emission/reception pattern. In various embodiments, an acoustic transducer system may include an array of sub-wavelength transducer elements each configured with an electromagnetic resonance at one of a plurality of electromagnetic frequencies. Each sub-wavelength transducer element may generate an acoustic emission in response to the electromagnetic resonance. A beam-forming controller may cause electromagnetic energy to be transmitted at select electromagnetic frequencies to cause a select subset of the sub-wavelength transducer elements to generate acoustic emissions according to a selectable acoustic transmission pattern. A common port may facilitate electromagnetic communication with each of the sub-wavelength transducer elements.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: November 3, 2020
    Assignee: Elwha LLC
    Inventors: Jeffrey A. Bowers, Paul Duesterhoft, Daniel Hawkins, Roderick A. Hyde, Edward K. Y. Jung, Jordin T. Kare, Eric C. Leuthardt, Nathan P. Myhrvold, Clarence T. Tegreene, Lowell L. Wood, Jr., Michael A. Smith
  • Patent number: 10823823
    Abstract: A surveying instrument comprises a distance measuring unit which includes a light emitting element, a distance measuring light projecting unit, a light receiving unit and a photodetector for producing a light receiving signal, and which performs a distance measurement of an object to be measured based on the light receiving signal, an optical axis deflecting unit for deflecting the distance measuring optical axis, a projecting direction detecting unit for detecting a deflection angle of the distance measuring optical axis and an arithmetic control component, wherein the optical axis deflecting unit comprises a pair of optical prisms capable of rotating and motors which individually and independently rotate the optical prisms, and wherein the arithmetic control component is configured to control the optical axis deflecting unit, to perform a two-dimensional scanning of the distance measuring light, to perform a distance measurement of when the light receiving signal is detected, to measure a horizontal angle a
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: November 3, 2020
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Kaoru Kumagai
  • Patent number: 10816652
    Abstract: In a sonar system using a large array multielement sonar detector, the raw phase and intensity data is reduced to less than three bits per channel per slice for each of the detectors in the multielement array before the raw data is transmitted to a beamformer for transforming the data to information about the spatial positions of objects reflecting the sonar signals.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: October 27, 2020
    Assignee: CodaOctopus Group
    Inventor: Martyn Sloss
  • Patent number: 10816665
    Abstract: The invention provides a measuring system, which comprises a plurality of measuring units and a leveling unit common to the plurality of measuring units, the leveling unit has a recessed fitting portion on an upper surface, and the plurality of measuring units each has a projecting fitting portion which is engageable and disengageable with respect to the recessed fitting portion, wherein the plurality of measuring units are constituted to be attachable and detachable with respect to the leveling unit, and in a state where each of the measuring units is mounted on the leveling unit, a same object to be measured is measured respectively, an offset amount between each of the measuring units is measured, and based on the offset amount, a measurement value measured in each of the measuring units is corrected and coordinate-converted.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: October 27, 2020
    Assignee: TOPCON Corporation
    Inventors: Ken-ichiro Yoshino, Fumio Ohtomo
  • Patent number: 10816370
    Abstract: A low-vibration collar system for vibration mitigation in a device towed in water. The low-vibration collar system includes a clamp attached to a streamer towed underwater by a seismic vessel, the streamer comprising a plurality of sensors to record seismic data; a collar configured to be attached to the clamp; a connecting mechanism located on the collar and configured to attach an ancillary device to the collar; and a vibration mitigation system configured to attenuate an amplitude of a vibration produced by the ancillary device. The vibration interferes with seismic data recorded by seismic sensors located on the streamer.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: October 27, 2020
    Assignee: SERCEL, INC.
    Inventor: Matthew Cerniway
  • Patent number: 10809402
    Abstract: Method for acquiring seismic data is described. The method includes determining a non-uniform optimal sampling design that includes a compressive sensing sampling grid. Placing a plurality of source lines or receiver lines at a non-uniform optimal line interval. Placing a plurality of receivers or nodes at a non-uniform optimal receiver interval. Towing a plurality of streamers attached to a vessel, wherein the plurality of streamers is spaced apart at non-uniform optimal intervals based on the compressive sensing sampling grid. Firing a plurality of shots from one or more seismic sources at non-uniform optimal shot intervals. Acquiring seismic data via the plurality of receivers or nodes.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: October 20, 2020
    Assignee: ConocoPhillips Company
    Inventors: Chengbo Li, Charles C. Mosher, Frank D. Janiszewski, Laurence S. Williams
  • Patent number: 10810753
    Abstract: Disclosed is a technique for 3D reconstruction through a combination of time-of-flight (ToF) and stereoscopy. Use of a single modulation frequency in ToF computation provides a set of ambiguous distances. To determine a single accurate distance out of this candidate set, a stereoscopic comparison of an image pair provides a disambiguating distance. The stereoscopic comparison uses a stored virtual image of at least part of the emitted light, and the detected image of light reflected from an object. The stereoscopic distance is used to determine which of the multiple accurate distances is correct based on proximity. The closest of the multiple distances to the disambiguating distance is taken as the actual distance.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 20, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Michael Bleyer, Raymond Kirk Price, Denis Demandolx
  • Patent number: 10809404
    Abstract: A method includes obtaining distributed measurements of acoustic energy as a function of time and position downhole. The method also includes deriving acoustic activity values as a function of time and position from the one or more distributed measurements. The method also includes predicting fluid flow for a downhole perforation cluster as a function of time, wherein predicting fluid flow involves a flow prediction model that is a function of perforation cluster geometry, fluid characteristics, and at least one of the acoustic activity values. The method also includes storing or displaying the predicted fluid flow.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: October 20, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Christopher Lee Stokely
  • Patent number: 10809405
    Abstract: Methods utilizing ultrasonic acoustic logging tools are provided for detecting thin formation layers that present markedly higher compliance than that of the surrounding rock in, for example, a laminated tight hydrocarbon-bearing formation. These layers may be interpreted as presenting potential interfacial and planes of weakness that may have bearing on the extent of a hydraulic fracture propagating across them.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: October 20, 2020
    Assignee: Schlumberger Technology Corporation
    Inventors: Smaine Zeroug, Bikash Kumar Sinha, Peter Tilke, George Alan Waters
  • Patent number: 10809399
    Abstract: A method for use in vertical seismic profiling includes: independently and simultaneously shooting a plurality of seismic sources in a plurality of shooting areas to impart seismic signals into a water bottom: receiving reflections of the seismic signals from a subterranean formation beneath the water bottom at a plurality of seismic receivers; and recording the received reflections; wherein, one of the seismic sources and the seismic receivers are disposed in a wellbore in the water bottom.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: October 20, 2020
    Assignee: BP Corporation North America Inc.
    Inventors: Raymond Lee Abma, Brian Hornby, David John Howe, John Naranjo, Min Zhou