Patents Examined by Isam Alsomiri
  • Patent number: 11822032
    Abstract: Methods, systems, devices, and products for hydrocarbon tubular evaluation. Methods comprise conveying the logging tool in the tubular with a carrier; inducing with a transmitter a horizontal shear (SH) wave; identifying higher order SH mode signals received at a plurality of offset receivers responsive to a higher order SH mode engendered by the horizontal shear (SH) wave; estimating a dominant frequency for higher order SH mode from the higher order SH mode signals; estimating a group velocity for the higher order SH mode from the higher order SH mode signals; and estimating a tubular parameter using the dominant frequency and the group velocity. The tubular parameter may be at least tubular thickness. The method includes estimating the tubular parameter independent of the fundamental horizontal shear wave mode (SH0).
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: November 21, 2023
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Wei Han, Douglas J. Patterson
  • Patent number: 11822020
    Abstract: A scanning LiDAR system includes a base frame, an optoelectronic assembly, and a lens assembly. The optoelectronic assembly includes one or more laser sources and one or more photodetectors, and is fixedly attached to the base frame. The lens assembly includes one or more lenses. The one or more lenses have a focal plane. The scanning LiDAR system further includes a first flexure assembly flexibly coupling the lens assembly to the base frame. The first flexure assembly is configured such that the one or more laser sources and the one or more photodetectors are positioned substantially at the focal plane of the one or more lenses. The first flexure assembly is further configured to be flexed so as to scan the lens assembly laterally in a plane substantially perpendicular to an optical axis of the emission lens.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: November 21, 2023
    Assignee: Cepton Technologies, Inc.
    Inventors: Jun Pei, Mark A. McCord, Ying Xu
  • Patent number: 11819881
    Abstract: A micromachined ultrasonic transducer (MUT) which comprises a first piezoelectric layer and a second piezoelectric layer. The first piezoelectric layer is disposed between a first electrode and a second electrode. The second piezoelectric layer is disposed between the second electrode and a third electrode. At least the first electrode has first and second ends along a first axis, one or more of which is defined by a radius of curvature R. A second axis normal to the first passes through a midpoint of the first axis. A half-width of the first electrode is defined by a length L measured from the midpoint, in the direction of the second axis, to an outer perimeter of the first electrode. A total width of the first electrode at its narrowest point along the first axis is at most 2L such that the first electrode has a concave shape. R/L, is greater than 1.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: November 21, 2023
    Assignee: Exo Imaging, Inc.
    Inventors: Haesung Kwon, Brian Bircumshaw, Sandeep Akkaraju
  • Patent number: 11822016
    Abstract: A lidar system comprises (1) an array of pixels for sensing incident light and (2) a circuit for processing a signal representative of the sensed incident light to detect a reflection of a laser pulse from a target within a field of view. The circuit can comprise a plurality of matched filters that are tuned to different reflected pulse shapes for detecting pulse reflections within the incident light, and wherein the circuit (1) applies the signal to the matched filters to determine an obliquity for the target based how the matched filters respond to the applied signal and (2) determines a correction angle based on the determined target obliquity, the correction angle for orienting the field of view to a frame of reference in response to a tilting of the lidar system. In an example embodiment, the circuit can comprise a signal processing circuit that performs the signal application and correction angle determination operations.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: November 21, 2023
    Assignee: AEYE, Inc.
    Inventors: Luis Dussan, Allan Steinhardt, Joel Benscoter, Todd Gustavson
  • Patent number: 11821973
    Abstract: A method is disclosed comprising: transmitting a pair of tracking signals, the pair of tracking signals including a first tracking signal and a second tracking signal; receiving a data set that is collected by using a sensor in a sensor array, the data set including: (i) a received first tracking signal that is generated by the sensor in response to receiving the first tracking signal, (ii) a received second tracking signal that is generated by the sensor in response to receiving the second tracking signal, and (iii) a received target signal; detecting a relative delay at which the first tracking signal and the second tracking signal are received by the sensor; removing the received first tracking signal and the received second tracking signal from the data set to produce a filtered data set; and providing the filtered data set and an indication of the relative delay to a beamformer.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: November 21, 2023
    Assignee: Raytheon Company
    Inventor: Andrew Wilby
  • Patent number: 11822015
    Abstract: System and method for generating Pulse Position Modulated (PPM) lidar waveforms generating Pulse Position Modulated (PPM) waveforms in a lidar includes: a) creating a modulation pool, based on a maximum nominal pulse repetition frequency (PRF); b) eliminating bad modulation levels from the modulation pool to generate a good modulation pool; c) selecting a modulation level from the good modulation pool to generate a PPM code element; d) repeating steps b and c N times to generate an N-element PPM code, wherein the PPM code is PRF independent; e) selecting a PRF less than the maximum nominal PRF; f) generating a PPM waveform by applying the N-element PPM code to the selected PRF; and g) transmitting the PPM waveform by the lidar toward a target to determine a range to the target.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: November 21, 2023
    Assignee: RAYTHEON COMPANY
    Inventors: Adam Hodge Greenberg, Eran Marcus
  • Patent number: 11815625
    Abstract: Methods and devices for correcting underwater photon displacement and for depth sounding with a single-photon Lidar are provided. The method includes: acquiring a pointing angle of a photon emitted by the single-photon Lidar, and coordinates of a water-surface photon signal and a water-bottom photon signal returned by the photon emitted by the single-photon Lidar; performing a sea wave fitting according to the water-surface photon signal to determine a sea wave model; determining an intersection of the photon and an air-water interface according to coordinates of any water-bottom photon, the pointing angle and the sea wave model; determining an underwater displacement error of the photon according to the intersection, the sea wave model and the pointing angle; and correcting the coordinates of the water-bottom photon according to the underwater displacement error. The invention performs sea wave modeling through water surface photon signal and determines intersection of the photon and water-air interface.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: November 14, 2023
    Assignee: China University of Geosciences, Wuhan
    Inventors: lizhe Wang, yifu Chen, yuan Le, gang Chen, weitao Chen, yusen Dong
  • Patent number: 11808850
    Abstract: A 1D ultrasonic transducer unit for detecting danger for a vehicle, comprising a housing mounted on the vehicle, which includes at least three discrete ultrasonic transducers, designed to decouple sound waves at a corresponding working frequency between 20 kHz and 400 kHz into a gaseous medium, and a control unit, designed to control each ultrasonic transducer individually, two ultrasonic transducers directly adjacent to each other in each case having a distance, the 1D ultrasonic transducer unit having one sound channel per ultrasonic transducer, each with one inlet opening assigned to exactly one ultrasonic transducer and one outlet opening (26), the outlet openings being arranged along a straight line, a distance from directly adjacent outlet openings corresponding to no more than the full or half wavelength in the gaseous medium and being shorter than the corresponding distance.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: November 7, 2023
    Assignee: Pepperl + Fuchs SE
    Inventors: Regine Augenstein, Thomas Kaindl
  • Patent number: 11808896
    Abstract: A method for calibrating a vehicle sensor of a motor vehicle. The method includes: ascertaining sensor data for a plurality of measuring points in time during a total measuring time period, the total measuring time period being subdivided into partial measuring time periods, and the motor vehicle moving relative to objects in surroundings of the motor vehicle; for each partial measuring time period, computing positions of the objects based on the ascertained sensor data; for each partial measuring time period, computing a partial measuring time period sinogram based on the computed positions; computing a total measuring time period sinogram by adding the partial measuring time period sinograms and correcting using a factor that is a function of the partial measuring time period sinograms; ascertaining an orientation of the vehicle sensor based on the total measuring time period sinogram; and calibrating the vehicle sensor based on the ascertained orientation.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: November 7, 2023
    Assignee: ROBERT BOSCH GMBH
    Inventors: David Ziegler, Stephan Dorenkamp
  • Patent number: 11796674
    Abstract: An acoustic detection system for detecting at least partly submerged targets in a sensitive area defined with respect to an infrastructure, wherein the system includes at least one multistatic detection group, each multistatic detection group defining a detection area, and comprising: a submerged transmitter transmitting at low frequencies; a plurality of submerged receivers comprising at least two receivers, each receiver of a given group forming, with the transmitter of the group, a bistatic pair, each bistatic pair generating an elementary detection area surrounding a blind zone, the detection area of the group being formed by all of the elementary detection areas of the receivers of the group, the blind zone of each receiver in a given detection group being at least partly covered by the elementary detection areas of the neighbouring receivers of the detection system.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 24, 2023
    Assignee: THALES
    Inventor: Louis Raillon
  • Patent number: 11796653
    Abstract: Aspects of the present disclosure involve systems, methods, and devices for mitigating Lidar cross-talk. Consistent with some embodiments, a method includes detecting a noise signal producing noise in one or more return signals being received by a Lidar unit of an autonomous vehicle (AV) system, and detecting a noise source corresponding to the noise signal. The detecting of the noise source comprises determining a direction of the noise source relative to the AV system and determining a classification of the noise source based on an intensity of the noise signal. The method further includes generating state data to describe the noise source based on the direction of the noise source relative to AV system and the classification of the noise source. The method further includes controlling one or more operations of the AV system based on the state data describing the noise source.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: October 24, 2023
    Assignee: UATC, LLC
    Inventor: Soren Juelsgaard
  • Patent number: 11796661
    Abstract: A sonar system for a watercraft, including a shaft defining a top and a bottom end. The system includes a first attachment operatively connected to the top end of the shaft, and a second attachment operatively connected to the bottom end of the shaft including a transducer assembly. The first attachment defines a first member pivotably connected to the top end of the shaft, and a handle member rotatably attached about the first member. The second attachment defines a second member pivotably connected to the bottom end of the shaft, and a bracket member rotatably attached about the second member. The system comprises a first connector extending between the first and second members and configured to cause reciprocal movement between the first and second members. The system comprises a second connector extending between the first and second members and configured to cause reciprocal rotation between the first and second members.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: October 24, 2023
    Assignee: NAVICO, INC.
    Inventor: Jayme Caspall
  • Patent number: 11796382
    Abstract: An apparatus for sensing acoustic energy in a borehole penetrating the earth includes an optical interrogator and a sensing optical fiber having a length Ls optically coupled to the optical interrogator and configured to sense the acoustic energy to provide sensed acoustic data. The apparatus also includes a reference optical fiber having a length Lr optically coupled to the optical interrogator to provide reference data, wherein the optical interrogator corrects the sensed acoustic data using the reference data to provide corrected sensed acoustic data.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: October 24, 2023
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: William Albert Johnston, Alexander Michael Barry
  • Patent number: 11796649
    Abstract: What is proposed is a method for optically measuring distances, in the case of which a first plurality of measuring pulses is emitted during a first measuring interval by means of a transmitting element of a transmitting unit at first emitting times, and wherein a second plurality of measuring pulses is emitted during a second measuring interval by means of the transmitting element of the transmitting unit at second emitting times. The method comprises the reception of reflected measuring pulses by means of a receiving element of a receiving unit assigned to the transmitting element at receiving times. The method further comprises the determining of a first amount of times-of-flight for each received measuring pulse, wherein the first amount of times-of-flight is determined by using the first emitting times.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: October 24, 2023
    Assignee: Microvision, Inc.
    Inventors: Hanno Holzh├╝ter, Frederik Lange, Christian Fellenberg
  • Patent number: 11798960
    Abstract: A time-of-flight imaging device comprises an image sensor comprising a pixel array including a plurality of pixel circuits, respective ones of the plurality of pixel circuits including a first tap output configured to output a first tap signal, and a second tap output configured to output a second tap signal; and a signal processing circuit including a time-of-flight processing circuit configured to perform at least one logical operation on the first tap signal and the second tap signal based on a mode of the signal processing circuit, and a counter configured to output a digital signal based on an output of the time-of-flight processing circuit.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: October 24, 2023
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Ariel Ben Shem
  • Patent number: 11800295
    Abstract: An electroacoustic transducer 400 is described. The electroacoustic transducer 400 comprises an active element 410. The electroacoustic transducer 400 comprises an acoustic coupling layer 430 arranged to acoustically couple, in use, the active element 410 to a transmission medium. The electroacoustic transducer 400 further comprises a cavity 420 arranged between the active element 410 and the acoustic coupling layer 430 to receive a fluid. In this way, acoustic coupling of the electroacoustic transducer 400 and the transmission medium is improved.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: October 24, 2023
    Assignee: BAE SYSTEMS plc
    Inventor: Lionel William John Kent
  • Patent number: 11799563
    Abstract: A method of generating ultrasound by driving an array of ultrasonic transducers comprises a charge transfer procedure. The charge transfer procedure comprises switching a terminal of a first ultrasonic transducer of the array, at a first electric potential, to a charge distribution bus; switching a terminal of a second ultrasonic transducer of the array, at a second electric potential different than the first potential, to the charge distribution bus; and allowing charge to flow between the first ultrasonic transducer and the second ultrasonic transducer through the charge distribution bus.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: October 24, 2023
    Assignees: Imec vzw, Katholieke Universiteit Leuven
    Inventors: Jonas Pelgrims, Kris Myny, Wim Dehaene
  • Patent number: 11774610
    Abstract: Land seismic survey including providing at least two vibrators in a first group, wherein each vibrator in the first group is assigned to a respective source line, where the source lines of the first group run substantially parallel to one another; providing at least two vibrators in a second group, wherein each vibrator in the second group is assigned to a respective source line that is different than the source lines assigned to vibrators from the first group; actuating the vibrators in the first group simultaneously using different frequency bandwidth sweeps and different phase encodings; actuating the vibrators in the second group at the same time as those in the first group, and simultaneously using different frequency bandwidth sweeps and different phase encodings; and detecting the resulting seismic signals with a plurality of seismic sensors that are placed in contact with the earth and as part of a seismic spread.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: October 3, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Nicolae Moldoveanu, Maurice Nessim, John Quigley, Wadii El Karkouri
  • Patent number: 11774588
    Abstract: A synthetic aperture sonar (SAS) system utilizes a novel timing and pointing method to illuminate and process data from multiple receive channels over one or more elevation swaths. The system further utilizes cross-track interferometry to improve accuracy of three-dimensional mapping.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: October 3, 2023
    Assignee: The Tomorrow Companies Inc.
    Inventors: Brian Pollard, James R. Carswell
  • Patent number: 11768283
    Abstract: A method of determining a distance between a vehicle and a sound source includes detecting, at a microphone of the vehicle, sounds from a sound source external to the vehicle. The sounds have a first frequency component at a first frequency and a second frequency component at a second frequency. The method also includes determining, at a processor of the vehicle, a classification of the sound source based on audio properties of the sounds. The method further includes determining a first energy level associated with the first frequency component and a second energy level associated with the second frequency component. The method also includes determining a ratio between the first energy level and the second energy level. The method further includes determining the distance between the vehicle and the sound source based on the ratio and the classification of the sound source.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: September 26, 2023
    Assignee: Waymo LLC
    Inventor: Michael Sleator