Patents Examined by Daniel L Murphy
  • Patent number: 10658996
    Abstract: The invention relates to a method for rendering ultrasonic signals audible that is characterized in that the temporal dynamic range of the ultrasonic signal is maintained. The amplitude profile of the ultrasonic signal picked up in the time domain remains unaltered. The frequency shift from the ultrasonic range to the audible range is possible up to a factor of 32 using the present invention.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: May 19, 2020
    Assignee: SONOTEC Ultraschallsensorik Halle GmbH
    Inventors: Peter Holstein, Sebastian Uziel, David Januszko, Andreas Tharandt, Ronald John, Nicki Bader
  • Patent number: 10656274
    Abstract: Embodiments use holographic projection in augmented reality to visualize a building in 3D and show, as a holographic figure, the position of personnel in the building. In some embodiments, a user can “tap” on a holographic figure to view data on that person, such as skin temperature, room temperature, heart rate, etc.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: May 19, 2020
    Assignee: Intergraph Corporation
    Inventors: Andrew James England, Laura Beth Ezzell, Thomas Overfield, Renz Angelo Santos, Edward Michael Sieja, Charles Carlton Barnes
  • Patent number: 10655462
    Abstract: An acoustic signal is transmitted from a downhole tool positioned within a wellbore. Amplitudes and travel times of the acoustic signal received at different azimuthal locations of the downhole tool are measured. Correction factors, each corresponding to a different one of the measured amplitudes, are determined based on the travel times measured at each of the different azimuthal locations. Corrected amplitudes are each determined based on the corresponding measured amplitude and the corresponding correction factor.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: May 19, 2020
    Inventors: Naoki Sakiyama, Wataru Izuhara
  • Patent number: 10649108
    Abstract: System and method for generating discrete dithering sequences DSi for marine seismic sources Si in a marine acquisition system. The method includes determining a number N of the seismic sources Si to be fired; calculating a dithering sequence DSi for each source Si such that when any two consecutive source activation Sk and Sl, where l=k+1, are selected, a combination DSkl of their dithering sequences DSk and DSl is a uniform random low-discrepancy sequence; and driving each source Si with the corresponding dithering sequence DSi to generate blended seismic data.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: May 12, 2020
    Assignee: CGG SERVICES SAS
    Inventors: Thomas Elboth, Vetle Vinje
  • Patent number: 10649072
    Abstract: A LiDAR device that transmits a single or multiple continuous or intermittent laser beams to the environment and detects the reflected light on one or more detectors. The LiDAR device may include a scanning mirrors array composed of a single or multiple moving mirrors capable of changing the direction of the transmitted light. The scanning mirrors array may also include sensors and actuators which can be used to precisely control or measure the position of the mirrors. The LiDAR device may also include a lens that focuses the light captured by the mirror(s) onto a single or a multitude of detectors. The device may include laser sources and detectors operating in various wavelengths. The LiDAR device may also include laser power modulation mechanisms at a single or multitude of frequencies to improve signal detection performance and remove any ambiguity in range calculation.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: May 12, 2020
    Assignee: Massachusetts Institute of Technology
    Inventors: Iman Soltani Bozchalooi, Kamal Youcef-Toumi
  • Patent number: 10640209
    Abstract: A flying sensor comprising an unmanned aerial vehicle (UAV) and at least one profiler mounted on the UAV, the profiler comprising a base, a scanning unit for providing (LiDAR) data, the scanning unit mounted on the base and comprising a shaft carrying a deflector and being mounted in the scanning unit and rotatable, a transmitter transmitting a transmission beam, a first receiver configured for receiving a first reception beam reflected from the setting via the deflector, and an electric port configured for connecting the profiler to the UAV, and comprising a data interface and a power interface, and wherein the UAV comprises a visual sensor providing visual data, and comprising one or more cameras, a pose sensor for providing pose data, and a computer to compute a 3D point cloud based on the LiDar data and a Simultaneous Localisation and Mapping (SLAM) algorithm using the visual and pose data.
    Type: Grant
    Filed: October 8, 2017
    Date of Patent: May 5, 2020
    Inventors: Burkhard Böckem, Jürgen Dold, Simon Mark
  • Patent number: 10641872
    Abstract: Disclosed herein are various embodiment of an adaptive ladar receiver and associated method whereby the active pixels in a photodetector array used for reception of ladar pulse returns can be adaptively controlled based at least in part on where the ladar pulses were targeted. Additional embodiments disclose improved imaging optics for use by the receiver and further adaptive control techniques for selecting which pixels of the photodetector array are used for sensing incident light.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: May 5, 2020
    Assignee: AEYE, INC.
    Inventors: Luis Carlos Dussan, Allan Steinhardt, David Cook
  • Patent number: 10641680
    Abstract: The present system and simulation environment calibrate vibrations. The system and simulation environment comprise a synthesizer for generating an electrical signal and a transducer for converting the electrical signal into vibrations propagated through a physical component and refracted in a physical space of the simulation environment. The system also comprises a vibration sensor measuring the vibrations propagated in the physical component. The system further comprises a configurator for calibrating the electrical signal generated by the synthesizer based on a vibration target for a simulated event and vibrations measured by the vibration sensor.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 5, 2020
    Assignee: CAE INC.
    Inventor: Nicolas Marcotte
  • Patent number: 10641942
    Abstract: A waveguide comprises a first surface and a second surface. The second surface comprises a first plurality of grating structures. The waveguide is configured to guide an in-coupled light beam to undergo total internal reflection between the first surface and the second surface. The grating structures are configured to disrupt the total internal reflection to cause at least a portion of the in-coupled light beam to couple out of the waveguide from the first surface, the portion of the in-coupled light beam coupled out of the waveguide forming out-coupled light beams. The waveguide further comprises a reflective layer disposed on the second surface and covering the first grating structures.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: May 5, 2020
    Assignee: Shenzhen Guangjian Technology Co., Ltd.
    Inventor: Fanglu Lyu
  • Patent number: 10634790
    Abstract: An optical imaging system and method for use in a degraded visual environment is provided. A wideband modulated laser pulse is transmitted from a first location through a medium toward a target object. An input of the transmitted wideband modulated laser pulse is detected by an optical receiver. A target modulated laser pulse, reflected from the target object is detected by the optical receiver. The transmitted and reflected laser pulses are filtered by a bandpass filter, based on a predetermined modulated frequency range. The filtered transmitted and reflected laser pulses are digitized by an analog-digital converter. The digitized transmitted laser pulse is correlated with digitized reflected laser pulse by a digital matched filter, wherein the matched filter produces a passband matched filter output. A range of the target object is determined based on the matched filter output.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: April 28, 2020
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Linda Mullen, Robert Lee, Justin Nash, Brandon Cochenour
  • Patent number: 10632500
    Abstract: A Piezoelectric Micromachined Ultrasonic Transducer (PMUT) device includes a substrate, an edge support structure connected to the substrate, and a membrane connected to the edge support structure such that a cavity is defined between the membrane and the substrate, the membrane configured to allow movement at ultrasonic frequencies, the membrane having non-uniform stiffness. The membrane includes a piezoelectric layer, a first electrode and a second electrode coupled to opposing sides of the piezoelectric layer, and a mechanical support layer coupled to one of the first electrode and the second electrode.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: April 28, 2020
    Assignee: InvenSense, Inc.
    Inventors: Renata Melamud Berger, Eldwin Ng
  • Patent number: 10634544
    Abstract: An ultrasonic transceiver can detect the presence of nearby moving objects while rejecting signals from stationary targets and from transmitter signal feedthrough. Data corresponding to received ultrasound signals are stored in a digital memory. For each sample in a measurement, a difference is calculated between corresponding samples in the stored data corresponding to received signals for current and previous measurements to estimate a time of flight to a moving object.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: April 28, 2020
    Inventor: Richard J. Przybyla
  • Patent number: 10634786
    Abstract: Decrease in a measurable distance that occurs when a distance measuring light is obliquely incident on an object is suppressed. A distance measuring device 100 includes an emitting unit 103, a detecting unit 104, a frequency-modulated component separating unit 105, a selecting unit 107, and a distance calculating unit 108. The emitting unit 103 emits distance measuring light to an object to be measured. The distance measuring light is modulated by multiple modulation frequencies. The detecting unit 104 receives and detects light of the distance measuring light that is reflected from the object. The separating unit 105 separates components of the received reflected light into multiple frequency-modulated components. The selecting unit 107 selects a frequency-modulated component that has a received-light intensity exceeding a threshold value from among the separated multiple modulation frequencies.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: April 28, 2020
    Inventors: Katsuyuki Nagai, Takahiro Maehara, Jun Abe
  • Patent number: 10635759
    Abstract: A system, method, and computer program configured to provide an electronic method for seismic time-lapse characterization of an underground formation are provided. The method includes decomposing, with microprocessor executing a predefined set of instructions stored in a memory, baseline and monitor seismic survey data of a formation into a four dimensional Clifford Algebraic form; extracting, via the microprocessor, time delays from a matrix of decomposed sensor measurement vectors generated based on the four dimensional Clifford Algebra form; and determining, via the processor, time strains for the underground formation from differences in the extracted time delays from the matrix before displaying the determined time strains for the underground formation to a user via a monitor or a hard copy printed document. A procedure is also provided to calibrate and refine the static and dynamic models of an underground formation using the results from the seismic time-lapse characterization.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: April 28, 2020
    Inventor: Elan Yogeswaren
  • Patent number: 10634497
    Abstract: The invention provides a laser beam projecting unit in which a hollow rotation shaft is provided on a fixed portion via one bearing, a rotor of an axial gap-type motor is provided on one end portion of the rotation shaft, a stator of the axial gap-type motor is provided on the fixed portion so as to confront the rotor, an attracting force between the rotor and the stator acts on the bearing as a pressurization, an angle detector for detecting a rotation angle of the rotation shaft is provided on the other end portion of the rotation shaft, a deflection optical component is provided inside the rotation shaft, and a laser beam is projected through the deflection optical component.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: April 28, 2020
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Hideyuki Matsumoto, Kazuki Osaragi, Takahiro Inoue
  • Patent number: 10627492
    Abstract: A computing system may operate a LIDAR device to emit and detect light pulses in accordance with a time sequence including standard detection period(s) that establish a nominal detection range for the LIDAR device and extended detection period(s) having durations longer than those of the standard detection period(s). The system may then make a determination that the LIDAR detected return light pulse(s) during extended detection period(s) that correspond to particular emitted light pulse(s). Responsively, the computing system may determine that the detected return light pulse(s) have detection times relative to corresponding emission times of particular emitted light pulse(s) that are indicative of one or more ranges. Given this, the computing system may make a further determination of whether or not the one or more ranges indicate that an object is positioned outside of the nominal detection range, and may then engage in object detection in accordance with the further determination.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: April 21, 2020
    Assignee: Waymo LLC
    Inventor: Mark Alexander Shand
  • Patent number: 10627491
    Abstract: Methods and systems for performing three dimensional LIDAR measurements with an integrated LIDAR measurement device are described herein. In one aspect, a Gallium Nitride (GaN) based illumination driver integrated circuit (IC), an illumination source, and a return signal receiver IC are mounted to a common substrate. The illumination driver IC provides a pulse of electrical power to the illumination source in response to a pulse trigger signal received from the return signal receiver IC. In another aspect, the GaN based illumination driver IC controls the amplitude, ramp rate, and duration of the pulse of electrical power based on command signals communicated from the return signal receiver IC to the illumination driver IC. In a further aspect, illumination driver IC reduces the amount of electrical power consumed by the illumination driver IC during periods of time when the illumination driver IC is not providing electrical power to the illumination source.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: April 21, 2020
    Assignee: Velodyne Lidar, Inc.
    Inventors: David S. Hall, Raymond Liou, Oren Milgrome, Marius Paul Dumitrean
  • Patent number: 10620317
    Abstract: Various arrangements for generating a high definition map are presented. An image of a roadway environment may be captured. A laser imaging detection and ranging point cloud of the roadway environment may be generated. An object recognition process may be performed on the image of the roadway environment to detect one or more objects present in the roadway environment. A fusion process may be performed using the lidar point cloud to identify a location of the one or more detected objects from the image in a vehicle frame of reference. The one or more objects may be mapped from the vehicle frame of reference to a global frame of reference An autonomous driving high definition map may be created that includes the mapped one or more objects in the global frame of reference.
    Type: Grant
    Filed: December 23, 2018
    Date of Patent: April 14, 2020
    Inventors: Huajun Chai, Rui Yu, Fan Wang, Yifan Tang
  • Patent number: 10620315
    Abstract: A system and method for forming a range estimate for a target with a laser detection and ranging system. The system includes a laser transmitter and an array detector. The method includes: transmitting a plurality of laser pulses; for each transmitted laser pulse: detecting, with the array detector, a plurality of ladar return photons from the laser pulse, each detection producing an electrical pulse; identifying, for each of the electrical pulses, a time bin of a plurality of time bins corresponding to the laser pulse, within which the electrical pulse was produced; forming a one dimensional range histogram array having, for each of a subset of the plurality of bins, an element with a value equal to the number of electrical pulses produced in the array detector during a time interval corresponding to the bin; and forming an estimated range rate for the target.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: April 14, 2020
    Inventors: Louis Zellinger, Vitaliy M. Kaganovich, Eran Marcus
  • Patent number: 10620314
    Abstract: An object detecting apparatus is provided with: a laser diode that projects a laser beam; a torsion spring coupled with a support member; a mirror coupled to a first side of the torsion spring and reflecting the laser beam; a permanent magnet coupled to a second side of the torsion spring across a rotational axis of the torsion spring; a driving coil; and a magnetic substance assembly surrounding the driving coil. The mirror reciprocates corresponding to a driving signal applied to the driving coil. The object detecting apparatus is further provided with a speed detecting circuitry configured to detect a moving speed of the mirror; and a pulse controller configured to control a pulse interval of the laser beam projected by the laser diode based on the moving speed detected by the speed detecting circuitry.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: April 14, 2020
    Assignee: DOLPHIN CO., LTD.
    Inventor: Zhihui Duan