Patents Examined by Daniel L Murphy
  • Patent number: 10935638
    Abstract: The present invention provides a laser radar system, including: a transmission module, disposed in a transmission optical path, and adapted to transmit a laser beam; a rotating shaft; and a receiving module, disposed in a receiving optical path, and adapted to receive an echo signal of the laser beam, the receiving module including a receiving lens group and a detection assembly. The transmission module and the receiving module are respectively disposed on a first side and a second side of the rotating shaft and are adapted to rotate around the rotating shaft. The receiving optical path includes a first receiving optical path and a second receiving optical path. In the first receiving optical path, the echo signal of the laser beam is transmitted from the first side of the rotating shaft to the second side of the rotating shaft and is received by the receiving lens group.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: March 2, 2021
    Assignee: Hesai Photonics Technology Co., Ltd.
    Inventors: Shixiang Wu, Shaoqing Xiang
  • Patent number: 10935682
    Abstract: A seismic system that includes a seismic source configured to generate a first seismic signal and a second seismic signal in a formation adjacent the seismic source. A first downhole sensing device disposed in a first borehole configured to detect the first seismic signal and the second seismic signal in the formation; and a first surface acquisition system is in communication with the first downhole sensing device. The first surface acquisition system is configured to: determine a first reference transit time based at least in part on detection of the first seismic signal by the first downhole sensing device; a first subsequent transit time based at least in part on detection of the second seismic signal by the first downhole sensing device; and whether a synchronization variation is expected to be present based at least in part on the first reference transit time and the first subsequent transit time.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 2, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: William Brian Underhill, Joel Herve Le Calvez, Herve Denaclara
  • Patent number: 10928196
    Abstract: A vision laser receiver having a sensing surface with a fixed geometry such that laser light received by the sensing surface will illuminate a particular section of the sensing surface and the precise elevation and/or tilt of the laser receiver will be determined from the illumination of the sensing surface.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: February 23, 2021
    Assignee: Topcon Positioning Systems, Inc.
    Inventors: Renard Tomas Graham, Donna Kelley
  • Patent number: 10914820
    Abstract: A sensor assembly includes a first body that rotates a sensor component about an axis, and a second body coupled to the first body to form a separation gap. The separation gap extends radially inward from a gap inlet to a sealed barrier of the second body. The separation gap may be configured with a set of air guide structural features, to induce formation of eddies from air intake received through the gap inlet, as air from the air intake moves inward towards the sealed barrier.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: February 9, 2021
    Assignee: UATC, LLC
    Inventor: Daniel Ratner
  • Patent number: 10914856
    Abstract: Apparatus having a focused transducer and methods of operating a focused transducer downhole in a well can provide high resolution downhole imaging. In various embodiments, a focused transducer is used for imaging downhole in a well in which the imaging is based on a seismoelectric effect. In various embodiments, a focused transducer is used for imaging downhole in a well in which the imaging is based on an electroacoustic effect. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: February 9, 2021
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Marian Morys
  • Patent number: 10908281
    Abstract: A system for enhanced object detection and identification is disclosed. The system provides new capabilities in object detection and identification. The system can be used with a variety of vehicles, such as autonomous cars, human-driven motor vehicles, robots, drones, and aircraft and can detect objects in adverse operating conditions such as heavy rain, snow, or sun glare. Enhanced object detection can also be used to detect objects in the environment around a stationary object. Additionally, such systems can rapidly identify and classify objects based on the encoded information in the emitted or reflected signals from the materials.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: February 2, 2021
    Inventors: Rainer J. Fasching, Ghyrn E. Loveness
  • Patent number: 10908290
    Abstract: The present invention provides an optical distance measuring method, comprising confirming an expression of a first measured distance according to a plurality of first parameters; computing a time-of-flight (ToF) measured distance according to a time of flight; computing optimized values of the plurality of first parameters and an optimized value of a ToF error corresponding to the ToF measured distance according to the expression of the first measured distance and the ToF measured distance; and obtaining a depth image information according to the ToF measured distance, the optimized values of the plurality of first parameters and the optimized value of the ToF error; wherein the plurality of first parameters comprises an elevation angle and an Azimuth angle corresponding to the object reflecting point and a distance between the light emitting module and the light sensing module.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: February 2, 2021
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventor: Mengta Yang
  • Patent number: 10890682
    Abstract: A method for imaging one or more dipping structures is provided. The method comprises providing a given velocity model, calculating travel time of a seismic wave using the velocity model, estimating coherency of event signals of array data that are time-corrected for a trial reflector, weighting a waveform sample corresponding to the travel time based on the coherency, and mapping the weighted waveform sample.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: January 12, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Nobuyasu Hirabayashi
  • Patent number: 10884129
    Abstract: The present disclosure relates to a detecting system fusing lidar point cloud and image, which includes a laser emitting means (101), a beamsplitter (102), a beam deflecting means (103), a first laser detecting means (104), a coaxial optical receiving means (105), a second laser detecting means (106) and an image detecting means (107). By using the coaxial optical receiving means, a third return light received by the second laser detecting means and a fourth return light received by the image detecting means are both from a first return light which includes a reflected light generated by the second laser beam irradiating a target object and a reflected light generated by a background illuminating light source irradiating the target object. The system may acquire lidar point cloud information and image information synchronously, which facilitates the subsequent fusion of the lidar point cloud information and the image information and reduces the complexity of calculation.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: January 5, 2021
    Assignee: Tsinghua University
    Inventor: Guanhao Wu
  • Patent number: 10878984
    Abstract: An actuator includes a column shaped magnet having an S-pole and an N-pole thereof positioned opposite to each other across a central axis of the magnet. A driving coil is disposed near the magnet, the driving coil comprising a first portion and a second portion positioned opposite to each other across the magnet, the first portion and the second portion are generally parallel to the central axis, current flowing in opposite directions in the first portion and the second portion when powered on. A ferromagnetic material is disposed outside the driving coil along the central axis, distance from the central axis to the ferromagnetic material varying with the direction from the central axis. A driving circuitry is configured to apply a drive signal, the drive signal having a periodically varying voltage or current. The magnet performs reciprocating rotation in accordance with the drive signal applied by the driving circuitry.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: December 29, 2020
    Assignee: DOLPHIN CO., LTD.
    Inventor: Zhihui Duan
  • 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: 10860842
    Abstract: A system includes at least two base stations that emit light beams to illuminate an area for positional tracking objects in the area. A base station emits at least two light beams that rotate around a rotation axis at a rotational speed unique to the base station. Responsive to being illuminated by the light beams emitted by the at least two base stations, an object being tracked generates illumination data. The system determines which illumination data corresponds to one of multiple base stations by analyzing the illumination data over time. The system analyzes the illumination data corresponding to one base station to determine an orientation and/or position of the object relative to that base station.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: December 8, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: David Maurice Moore, Evan Paul Gander, Jason Victor Tsai, Zhaoming Zhu, Richard Andrew Newcombe, Renzo De Nardi, Nicholas Daniel Trail
  • Patent number: 10859701
    Abstract: A system includes a ground based area, an electromagnetic (EM) interrogation device having an EM emitter that directs an EM beam at the ground based area. The EM interrogation device includes a detector array that receives reflected EM radiation from the EM beam, and a controller having a ground movement description module that determines a movement profile of the ground based area in response to the reflected EM radiation.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: December 8, 2020
    Assignee: Exciting Technology, LLC
    Inventor: Paul F. McManamon
  • 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: 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: 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: 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