Patents Examined by Samantha K Abraham
  • Patent number: 10848316
    Abstract: A vehicle measurement station utilizing one or more displacement sensors disposed on each opposite side of an inspection region of a vehicle inspection lane to acquire displacement measurement data along associated measurement axes. At least a portion of the displacement measurement data is associated with the outermost wheel assemblies on an axle of a moving vehicle passing through the inspection region, and utilized to determine one or more vehicle characteristics, such as an axle total toe condition.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: November 24, 2020
    Assignee: Hunter Engineering Company
    Inventors: Michael T. Stieff, Timothy A. Strege, Daniel R. Dorrance
  • Patent number: 10845480
    Abstract: In one embodiment, a lidar system includes a light source configured to emit an optical signal. The light source includes a seed laser diode configured to produce a seed optical signal and a semiconductor optical amplifier (SOA) configured to amplify the seed optical signal to produce an amplified seed optical signal, where the emitted optical signal includes the amplified seed optical signal. The lidar system also includes a scanner configured to direct the emitted optical signal into a field of regard of the lidar system and a receiver configured to detect a portion of the emitted optical signal scattered by a target located a distance from the lidar system. The lidar system further includes a processor configured to determine the distance from the lidar system to the target.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: November 24, 2020
    Assignee: Luminar Technologies, Inc.
    Inventors: Lawrence Shah, Jason M. Eichenholz, Joseph G. LaChapelle, Alex Michael Sincore, Cheng Zhu
  • Patent number: 10847910
    Abstract: A LIDAR sensor assembly includes a main board, a board-to-board connector assembly, and a sensor component board. The main board has an edge. The board-to-board connector assembly is located on the main board and includes a housing. The housing includes a feature that aligns an angular orientation of the housing relative to the main board by engagement of the feature of the housing with the edge of the main board. The board-to-board connector also includes connector pins that are connected to the main board and are disposed within the housing. The sensor component board is connected to the main board by the connector pins of the board-to-board connector assembly to allow pivoting of the sensor component board relative to the main board over a limited angular range.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: November 24, 2020
    Assignee: APPLE INC.
    Inventors: Mahmoud R. Amini, James E. Harper
  • Patent number: 10827453
    Abstract: Embodiments herein disclose a range detection system that includes a line-of-sight (LOS) emitter that outputs a LOS signal (e.g., visible light, infrared, etc.) which is detected at a receiver (e.g., a photodiode). The receiver outputs a signal representing the intensity of the LOS signal at the receiver. The output signal is converted into a digital signal which is then used to identify a distance value corresponding to the intensity of the LOS signal. For example, the range detection system may include a data structure that maps a plurality of digital signals to respective distance values. In this manner, the intensity of the LOS signal measured at the receiver can be correlated to a distance between the emitter and the receiver.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: November 3, 2020
    Assignee: Disney Enterprises, Inc.
    Inventors: Mark Robert Barton, Michael Paul Goslin, Eric C. Haseltine
  • Patent number: 10816647
    Abstract: A Lidar system may comprise a rotor and a stator. The rotor is configured to rotate with respect to the stator. The rotor comprises at least one supporting body and a plurality of light sources disposed on the at least one supporting body, the plurality of light sources configured to emit a plurality of first light beams. The plurality of light beams are non-uniformly distributed along a vertical direction in a vertical field of view of the Lidar system.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: October 27, 2020
    Assignee: Hesai Photonics Technology Co., Ltd.
    Inventors: Shaoqing Xiang, Na Li, Yancong Lu
  • Patent number: 10816321
    Abstract: Provided herein are a measurement device and an operation method thereof. The measurement device senses a distance variation between the measurement device and an object using a built-in proximity sensor and accordingly determines whether to turn on or turn off a track sensing module and an optical ranging module such that the measurement device provides intelligent selection to achieve energy saving without being interfered with by other sensors being turned on.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: October 27, 2020
    Inventors: Ting-Yang Chang, Shih-Wei Kuo, Yen-Min Chang
  • Patent number: 10809379
    Abstract: Provided is a three-dimensional position measuring system, a three-dimensional position measuring method, and a measuring module with which measurement can be performed without a special operation constraint even in state where a measuring module is inclined. The three-dimensional position measuring system includes a measuring module that includes a target, an omnidirectional camera, and a triaxial accelerometer, and is grasped a positional relationship among the target, the omnidirectional camera, and a measurement point, and a surveying instrument including a light output section that outputs light toward the target and a measurement section that performs distance measuring and angle measuring to the target. Since the measuring module including the target is equipped with the omnidirectional camera and the triaxial accelerometer, a posture direction of the measuring module can be identified.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: October 20, 2020
    Inventor: Nobuyuki Nishita
  • Patent number: 10803725
    Abstract: A method and apparatus for determining presence of an object to be tidied in a washroom. A beam is supplied to a surface of the washroom at a first location. A reflected beam received from the surface of the washroom or received from an object in the path of the beam to the surface is detected. The presence of the object is determined from feedback from the beam based on a comparison of the feedback with a detection result when the beam reflects from the surface at the first location. An object to be tidied output signal is issued indicating that an object to be tidied is present based on the determination on the presence of an object.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: October 13, 2020
    Inventors: Anders Gustafsson, Eva-Li Saarväli, Urban Gabrielsson
  • Patent number: 10795000
    Abstract: A laser distance and ranging (LADAR) apparatus is provided. The LADAR apparatus includes a first substrate, a LADAR module coupled to the first substrate, and an actuation unit coupled between the first substrate and the LADAR module. The LADAR module is configured to scan with a predetermined field of view in a first viewing position from said LADAR module, and the actuation unit is selectively operable to modify an orientation of the LADAR module such that the predetermined field of view moves from the first viewing position towards a second viewing position from the LADAR module.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: October 6, 2020
    Assignee: The Boeing Company
    Inventors: Scott Singer, Robert Douglas Moss
  • Patent number: 10794998
    Abstract: Lidar is an acronym for Light Detection And Ranging. The technology may be used to measure distance by illuminating a target with a laser beam and performing analysis on the reflected laser beam light. In the atmospheric sciences, Lidar may be used to study the optical depth of clouds, the impact of aerosols on clouds, and the interactions between aerosols and clouds on the climate. The present application proposes a lidar-based technology using a diode laser (101) beam sent through a tapered semiconductor optical amplifier (106) and an axicon pair expander (108) wherein the laser light may be transmitted through a telescope (110) at an object to be studied. Upon striking the object to be studied, the laser (101) is reflected and recovered by the telescope (110). The reflected laser is then sent through a heated rubidium vapor cell (115) and a total detection channel (116) for analysis.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: October 6, 2020
    Assignees: University Corporation for Atmospheric Research, Wisconsin Alumni Research Foundation
    Inventors: Scott Spuler, Matthew Hayman, Bruce Morley, Edwin W. Eloranta
  • Patent number: 10788582
    Abstract: The LIDAR chip includes a utility waveguide that guides an outgoing LIDAR signal to a facet through which the outgoing LIDAR signal exits from the chip. The chip also includes a control branch that removes a portion of the outgoing LIDAR signal from the utility waveguide. The control branch includes a control light sensor that receives a light signal that includes light from the removed portion of the outgoing LIDAR signal. The chip also includes a data branch that removes a second portion of the outgoing LIDAR signal from the utility waveguide. The data branch includes a light-combining component that combines a reference light signal that includes light from the second portion of the outgoing LIDAR signal with a comparative light signal that includes light that was reflected off an object located off of the chip.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: September 29, 2020
    Assignee: SiLC Technologies, Inc.
    Inventors: Dazeng Feng, Bradley Jonathan Luff, Mehdi Asghari
  • Patent number: 10782311
    Abstract: Imaging of complex, non-stationary three dimensional (3D) flow velocities is achieved by encoding depth into color. A flow volume 22 is illuminated with a continuum 40 of light planes 42 whereby each depth corresponds to a respective light plane 14 having a specific wavelength of light. A diffractive component 46 in the camera 24 optics, which records the trajectories of illuminated particles 20 within the flow volume 22, ensures that all light planes 42 are in focus simultaneously. The setup permits a user to track 3D trajectories of particles 20 within the flow volume 22 by combining two dimensional (2D) spatial and one dimensional (1D) color information. For reconstruction, an image formation model for recovering stationary 3D particle positions is provided. 3D velocity estimation is achieved with a variant of a 3D optical flow approach that accounts for both physical constraints as well as the color (rainbow) image formation model.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: September 22, 2020
    Inventors: Wolfgang Heidrich, Jinhui Xiong, Xiong Dun, Ramzi Idoughi, Sigurdur Tryggvi Thoroddsen, Andres A. Aguirre-Pablo, Abdulrahman B. Aljedaani, Erqiang Li
  • Patent number: 10782393
    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: September 22, 2020
    Assignee: AEYE, INC.
    Inventors: Luis Carlos Dussan, Allan Steinhardt, David Cook
  • Patent number: 10768282
    Abstract: A system and method for optical detection in autonomous vehicles includes modulating an optical signal from a laser to generate a modulated optical signal and transmitting the modulated optical signal toward an object. The system and method include receiving, responsive to transmitting the modulated optical signal, a returned optical signal and mixing the returned optical signal with a reference optical signal associated with the optical signal from the laser to generate a mixed optical signal and detecting the mixed optical signal to generate an electrical signal. Based on the electrical signal and the modulated optical signal, a parameter of an internal reflection of the returned optical signal from one or more optical components is determined, which may be used to operate a vehicle.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: September 8, 2020
    Inventors: Stephen C. Crouch, Emil Kadlec, Krishna Rupavatharam
  • Patent number: 10761188
    Abstract: A projection system emits light pulses in a field of view and measures properties of reflections. Properties may include time of flight and return amplitude. Foreground objects and background surfaces are distinguished, distances between foreground objects and background surfaces are determined based on reflections that are occluded by the foreground objects and other properties of the projection system.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: September 1, 2020
    Assignee: Microvision, Inc.
    Inventors: P. Selvan Viswanathan, Jonathan A. Morarity, Alga Lloyd Nothern, III, Bin Xue
  • Patent number: 10754035
    Abstract: A ground-classifier system that classifies ground-cover proximate to an automated vehicle includes a lidar, a camera, and a controller. The lidar that detects a point-cloud of a field-of-view. The camera that renders an image of the field-of-view. The controller is configured to define a lidar-grid that segregates the point-cloud into an array of patches, and define a camera-grid that segregates the image into an array of cells. The point-cloud and the image are aligned such that a patch is aligned with a cell. A patch is determined to be ground when the height is less than a height-threshold. The controller is configured to determine a lidar-characteristic of cloud-points within the patch, determine a camera-characteristic of pixels within the cell, and determine a classification of the patch when the patch is determined to be ground, wherein the classification of the patch is determined based on the lidar-characteristic and the camera-characteristic.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: August 25, 2020
    Assignee: Aptiv Technologies Limited
    Inventors: Ronald M. Taylor, Izzat H. Izzat
  • Patent number: 10746856
    Abstract: A light scanning type object detecting device includes a mirror unit in which first and second mirror surfaces are formed so as to incline in respective directions intersecting with a rotation axis and to face each other with a predetermined angle, a light source; and a light receiving element. On the assumption that H represents a distance between an intersection point of extension lines of lateral sides and a bottom side in the first mirror surface, r represents a radius of a received light flux, h represents a distance between the center of the received light flux and the bottom side, and H? represents a distance between a top side and the bottom side, formulas (1) and (2) are satisfied. when r<0.4H, 0.1<h/H?(H??r)/H??(1) when r?0.4H, 0.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: August 18, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kazutaka Noguchi, Ryouta Ishikawa, Kazuki Matsui
  • Patent number: 10746878
    Abstract: A method of measuring a distance by using a 3-dimensional (3D) depth sensor is provided. The method may include: measuring m number of frames using light modulated at a first frequency to determine a first tentative distance from a viewpoint to an object at the first frequency, m being a positive integer; measuring n number of frames using light modulated at a second frequency to determine a second tentative distance from the viewpoint to the object at the second frequency, n being a positive integer, a sum of m and n being four; and determining a resulting distance to the object based on the first distance and the second distance.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: August 18, 2020
    Inventors: Heesun Yoon, Jangwoo You, Yonghwa Park
  • Patent number: 10739441
    Abstract: In some examples, a system comprises a laser light source and a rotatable mirror assembly comprising a plurality of mirror segments, the rotatable mirror assembly aligned to reflect light transmitted by the laser light source, wherein the plurality of mirror segments comprise a first segment that reflects a first light beam from the laser light source in a first direction, and a second mirror segment that reflects the first light beam from the laser light source in a second direction, different from the first direction. In some examples, the system comprises a light sensor positioned to receive light reflected from the rotatable mirror assembly. In some examples, the system comprises a motor for rotating the mirror assembly about a rotation axis. In some examples, the system comprises a controller for controlling a sampling phase of sampling the light sensor.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 11, 2020
    Assignee: FARADAY & FUTURE INC.
    Inventor: Bartholomeus C. Nabbe
  • Patent number: 10739445
    Abstract: A method of lidar processing pulses a scene with laser pulse sequences from a laser light source. Reflected light from the target scene passes through receiver optics and is defocused to cover a light sensing surface of a photo detector array. The photo detector array contains multiple photon detector elements connected in parallel where each photon detector element is configured to generate corresponding photon pulse output signals based on sensing photons in the received reflected light, and each photon detector element is characterized by a non-responsive dead time period immediately after sensing a photon. The photon pulse output signals are combined to form a common real time output signal, which is converted to a digital time resolved histogram. Multiple digital time resolved histograms produced in response to multiple light pulses directed at a scanning location are combined to form a composite time resolved histogram for the scanning location.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: August 11, 2020
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Joseph Hollmann, Zachary R. Hoffman