Patents Examined by Daniel L Murphy
  • Patent number: 10416329
    Abstract: A system includes an acoustic logging tool including a transducer configured to: emit a first acoustic pulse in a first direction toward a first acoustic surface; measure a first acoustic signal, wherein the first acoustic signal includes a coherent noise component and a first echo component, wherein the first echo component is due at least in part to an interaction of the first acoustic pulse with the first acoustic surface; emit a second acoustic pulse in a second direction, wherein the second direction is at least partly directed away from the first acoustic surface; and measure a second acoustic signal, wherein the second acoustic signal includes substantially only the coherent noise component. The system also includes a data processing system that includes a processor configured to remove the measurement of the second acoustic signal from the measurement of the first acoustic signal to reduce coherent noise.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 17, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Andrew John Hayman, Thomas Barrou
  • Patent number: 10418407
    Abstract: A circuit, including: a photodetector including a first readout terminal and a second readout terminal different than the first readout terminal; a first readout circuit coupled with the first readout terminal and configured to output a first readout voltage; a second readout circuit coupled with the second readout terminal and configured to output a second readout voltage; and a common-mode analog-to-digital converter (ADC) including: a first input terminal coupled with a first voltage source; a second input terminal coupled with a common-mode generator, the common-mode generator configured to receive the first readout voltage and the second readout voltage, and to generate a common-mode voltage between the first and second readout voltages; and a first output terminal configured to output a first output signal corresponding to a magnitude of a current generated by the photodetector.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: September 17, 2019
    Assignee: Artilux, Inc.
    Inventors: Yun-Chung Na, Che-Fu Liang, Shu-Lu Chen, Szu-Lin Cheng, Han-Din Liu, Chien-Lung Chen, Yuan-Fu Lyu, Chieh-Ting Lin, Bo-Jiun Chen, Hui-Wen Chen, Shu-Wei Chu, Chung-Chih Lin, Kuan-Chen Chu
  • Patent number: 10416297
    Abstract: In one aspect the invention provides a time of flight camera system which includes a time of flight transmitter arranged to transmit modulated radiation at a target, and a phase adjustment element configured to adjust the phase of a source modulation signal used to modulate the radiation transmitted at the target. This phase adjustment element provides a set of phase separated output signals, each output signal provided having one of a set phase offsets values applied, where at least one of these phase offset values is the cancellation phase value of another member of the set of phase offset values. The camera system also includes an image sensor modulated with the source modulation signal and configured to measure radiation reflected from a target, and a processor arranged to receive the image sensor measurements and being programmed to resolve range information from the measurements received by the image sensor.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: September 17, 2019
    Assignee: WalkatoLink Limited
    Inventors: Adrian Andrew Dorrington, Lee Vincent Streeter
  • Patent number: 10416296
    Abstract: A three-dimensional image 3DI system includes a modulator configured to generate a first modulation signal and a second modulation signal having a predetermined frequency difference, an illumination source configured to generate a light signal modulated by the first modulation signal, and a sensor core including a pixel array modulated by the second modulation signal. At least one pixel of the pixel array is configured to receive a reflected modulated light signal and to demodulate the reflected modulated light signal using the second modulation signal during an image acquisition to generate a measurement signal. The at least one pixel is configured to generate a plurality of measurement signals based on a plurality of image acquisitions taken at different sample times. A controller is configured to receive the plurality of measurement signals, and calibrate the at least one pixel of the pixel array based on the plurality of measurement signals.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: September 17, 2019
    Assignee: Infineon Technologies AG
    Inventor: Thomas Thurner
  • Patent number: 10401523
    Abstract: An example method for estimating a time of flight (“TOF”) for an acoustic wave generated by an acoustic source for each of a plurality of acoustic receivers in an array can include recording data corresponding to the acoustic wave received at each of the acoustic receivers, estimating a respective TOF for the acoustic wave for each of the acoustic receivers, and discarding one or more of the respective estimated TOFs. Each of the discarded TOFs can be a statistical outlier. The method can also include calculating a plurality of time delays for the acoustic wave using a plurality of non-discarded estimated TOFs, and updating the respective estimated TOFs for the acoustic wave for each of the acoustic receivers using the calculated time delays. Each of the time delays can be a difference between respective estimated TOFs for the acoustic wave for at least two of the acoustic receivers.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: September 3, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Henri-Pierre Valero, Vivien Seguy
  • Patent number: 10401521
    Abstract: The acoustic energy induced by a transmitter module of an acoustic logging tool is dependent on several factors. In some implementations, the induced acoustic energy is dependent on the electromagnetic energy input into the transmitter module, the response behavior of the transmitter module, and the operating conditions of the transmitter module. Variation in one or more of these factors can result in a corresponding variation in the induced acoustic. Thus, a desired acoustic signal can be produced by applying an appropriately selected input signal to the transmitter module, while accounting for other factors that influence the output of the transmitter module.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: September 3, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Yinghui Lu, Daniel Viassolo
  • Patent number: 10401480
    Abstract: In one embodiment, a lidar system includes a light source configured to emit multiple optical signals directed into a field of regard of the lidar system. The optical signals include a first optical signal and a second optical signal, where the second optical signal is emitted a particular time interval after the first optical signal is emitted. The lidar system also includes a receiver configured to detect a received optical signal that includes a portion of the emitted first or second optical signal that is scattered by a target located a distance from the lidar system. The received optical signal is detected after the second optical signal is emitted. The receiver includes a first detector configured to detect a first portion of the received optical signal and a second detector configured to detect a second portion of the received optical signal.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: September 3, 2019
    Assignee: Luminar Technologies, Inc.
    Inventors: Stephen D. Gaalema, Mark A. Drummer, Stephen L. Mielke, Jason M. Eichenholz
  • Patent number: 10401511
    Abstract: A sound source including a first gas filled underwater resonator, a second gas filled underwater resonator connected to the first resonator, where the second resonator comprises a Helmholtz resonator, and at least one excitation member configured to excite the first resonator and the second resonator is disclosed. The first resonator is permanently tuned to produce a first resonant frequency upon excitation by the at least one excitation member and the second resonator is permanently tuned to produce a second resonant frequency upon excitation by the at least one excitation member. The first resonant frequency is different from the second resonant frequency.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: September 3, 2019
    Assignee: TELEDYNE INSTRUMENTS, INC.
    Inventors: Andrey K. Morozov, Douglas C. Webb
  • Patent number: 10401518
    Abstract: Estimation of direct arrival signals based on predicted direct arrival signals and measurements can include obtaining notional source signatures for notional sources that correspond to source elements in a seismic source. A first predicted direct arrival signal at a first location and a second predicted direct arrival signal at a second location can be determined. The first location corresponds to a seismic receiver and the second location does not correspond to a seismic receiver. A transfer function can be determined based on the first predicted direct arrival signal at the first location and the second predicted direct arrival signal at the second location. An estimated direct arrival signal at the second location can be determined based on the transfer function and a measurement by the seismic receiver corresponding to the first location. The estimated direct arrival signal represents what a measured direct arrival signal would be at the second location.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: September 3, 2019
    Assignee: PGS Geophysical AS
    Inventor: Stian Hegna
  • Patent number: 10404954
    Abstract: An optical deflection apparatus, an image projector, an optical writing unit, and an object recognition device. The optical deflection apparatus includes a mirror unit having a reflection plane, a plurality of actuators to move the mirror unit around a prescribed axis, a drive controller to control operation of the plurality of actuators, and an abnormality detector to detect an abnormality in at least one of the plurality of actuators. When the abnormality detector detects an abnormality in at least one of the plurality of actuators, the drive controller controls another one of the plurality of actuators to deflect a light flux incident on the mirror unit. The image projector includes the optical deflection apparatus, and a light source unit to emit a laser beam. The optical deflection apparatus projects an image formed by optically scanning the laser beam emitted from the light source unit.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: September 3, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventor: Kazuhiko Tsukamoto
  • Patent number: 10393874
    Abstract: The disclosure proceeds from a distance measuring device comprising at least one distance measuring unit, which is in particular suitable for a contactless distance measurement, which has at least one transmission device for emitting reference and measurement radiation and at least one sensor device for detecting reference and measurement radiation. It is proposed that, in the distance measuring device according to the disclosure, the reference radiation is embodied as at least one partial beam of divergent radiation emitted by the transmission device.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: August 27, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Bernd Schmidtke, Uwe Skultety-Betz
  • Patent number: 10393896
    Abstract: Systems and methods of real-time in-situ sub-surface imaging are described herein.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: August 27, 2019
    Assignee: GEORGIA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventor: WenZhan Song
  • Patent number: 10386465
    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: March 30, 2018
    Date of Patent: August 20, 2019
    Assignee: Velodyne Lidar, Inc.
    Inventors: David S. Hall, Raymond Liou, Oren Milgrome, Marius Paul Dumitrean
  • Patent number: 10379135
    Abstract: Techniques are disclosed for enabling a wind-sensing optical scope to communicate with external components to provide for a ballistic solution. Techniques may further incorporate cost saving features such as the utilization of a photo diode and/or other features. The wind-sensing optical scope may include various sensors to collect data for the ballistic solution, and/or data from external sensors may be used. Techniques may further incorporate range finding in the wind-sensing optical scope, depending on desired functionality.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: August 13, 2019
    Assignee: Cubic Corporation
    Inventors: Tony Maryfield, Mahyar Dadkhah
  • Patent number: 10379223
    Abstract: A state-of-the-art class of photonic Doppler velocimetry (PDV) diagnostic and novel methods to stabilize any class of PDV signal has been developed. The former brings velocimetry to new extremes in maximum velocity and fast time resolution, while maintaining precision velocity resolution, long record length capability, and the ability to record multiple velocities simultaneously. The latter compensates for large changes in signal intensity common in many experiments.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: August 13, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Corey V Bennett, Natalie B Kostinski
  • Patent number: 10379236
    Abstract: Improved methods of providing acoustic source signals for seismic surveying, wherein a plurality of signals can be easily separated from one another after data acquisition, wherein the source signals are not sweep based.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: August 13, 2019
    Assignee: CONOCOPHILLIPS COMPANY
    Inventors: Peter M. Eick, Joel D. Brewer
  • Patent number: 10379256
    Abstract: A method and apparatus for marine surveying including towing an electromagnetic source having an electromagnetic cross-talk zone and an entanglement zone; towing a plurality of pieces of seismic equipment, wherein each piece of seismic equipment is towed outside of the electromagnetic cross-talk zone and the entanglement zone; actuating the electromagnetic source; and while actuating the electromagnetic source, acquiring seismic survey data with the plurality of pieces of seismic equipment.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: August 13, 2019
    Assignee: PGS Geophysical AS
    Inventors: Robert James Adams, Barrett Moreing Cameron, Andrew Samuel Long
  • Patent number: 10371841
    Abstract: A computing device, computing medium and method for generating an image of a tilted orthorhombic medium. The method includes receiving seismic data related to the tilted orthorhombic medium; calculating a wave propagation with a processing device by applying a second-order equation for reverse time migration to the seismic data to generate a tilted orthorhombic wave propagation; and generating the image of the tilted orthorhombic medium based on the tilted orthorhombic wave propagation.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: August 6, 2019
    Assignee: CGG SERVICES SAS
    Inventor: Yu Zhang
  • Patent number: 10371846
    Abstract: One or more portions of a streamer or other equipment of a seismic survey system (e.g., birds, buoys, deflectors, etc.) are covered with protective removable skin sections. A protective removable skin section includes a flexible sheet and a reversible closure system configured to join edges of the flexible sheet. The protective removable skin section may be mounted onboard of a vessel, when the equipment is deployed.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: August 6, 2019
    Assignee: CGG SERVICES SAS
    Inventors: Raphael MacQuin, Karine Desrues
  • Patent number: 10371785
    Abstract: A polar axis calibration system (100) comprises: a polar scope (10), a polar axis calibration control device (20) and a display device (30). The polar scope comprises an optical lens (11) and an image sensor (12) for collecting constellation images (IM); the polar axis calibration control device receives the constellation images from the polar scope and determines the position (P1) of the rotation center of the polar axis and the celestial pole position (P2), the position of the rotation center of the polar axis means the position of the rotation center (R0) of the polar axis (510) of the equatorial instrument in the plane of the constellation image, and the celestial pole position means the position of the celestial pole in the plane of the constellation image; and the display device is coupled to the polar axis calibration control device and used to display the constellation image, the celestial pole position and the position of the rotation center of the polar axis.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 6, 2019
    Assignee: Light Speed Vision (Beijing) Co., Ltd.
    Inventor: Hongyun Qiu