With Light Detector (e.g., Photocell) Patents (Class 356/28)
  • Patent number: 11396103
    Abstract: A tool control system may include: a tactile sensor configured to, when a tool holds a target object and slides the target object downward across the tool, obtain tactile sensing data from the tool; one or more memories configured to store a target velocity and computer-readable instructions; and one or more processors configured execute the computer-readable instructions to: receive the tactile sensing data from the tactile sensor; estimate a velocity of the target object based on the tactile sensing data, by using one or more neural networks that are trained based on a training image of an sample object captured while the sample object is sliding down; and generate a control parameter of the tool based on the estimated velocity and the target velocity.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: July 26, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yuan Chen, Colin Prepscius, Dae Won Lee, Ibrahim Volkan Isler, Daniel Dongyuel Lee
  • Patent number: 11385332
    Abstract: A light detection and ranging (LIDAR) apparatus is provided that includes an optical source to emit an optical beam towards a target. The LIDAR apparatus further includes a mode field expander operatively coupled to the optical source to expand a mode area of the optical beam.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: July 12, 2022
    Assignee: Aeva, Inc.
    Inventors: Behsan Behzadi, Keith Gagne, Oguzhan Avci, Omer P. Kocaoglu, Neal N. Oza, Mina Rezk
  • Patent number: 11378658
    Abstract: In one embodiment, a waveguide is added to the LiDAR sensor that redirects some of a received target return laser beam to a first stage photodetector and amplifier. When the amplitude of the target return laser beam is high enough to oversaturate the amplifier, an electric current is generated by the amplifier and received by a tunable coupler. As the tunable coupler heats up due to the electric current, it redirects energy from the return target laser beam to a beam dump. The reduced return target laser beam is then received by a photodetector or RF amplifier and is used to calculate the distance between the LiDAR sensor and object that reflected the received target return laser beam. In addition, rather than redirect the energy to a beam dump, the energy may be redirected to another photodetector or amplifier and may be used to supplement the distance calculation.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: July 5, 2022
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventor: Paul Donald Schmalenberg
  • Patent number: 11378656
    Abstract: An information processing apparatus includes a display panel, and a ToF sensor emitting light through the display panel, in which the display panel includes a glass, and an AF layer (a water-repellent layer) having water-repellency, formed in an area other than a certain area including a passing area of light emitted from the ToF sensor on a surface of the glass opposite to a surface facing the ToF sensor.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: July 5, 2022
    Assignee: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Asahi Tokyo, Kazuhiro Kosugi
  • Patent number: 11380294
    Abstract: A keyless synthesizer t can stimulate all three senses (hearing, muscle movement and visual) at once in patients born with C.H.A.R.G.E. syndrome while they play and, at the same time, enjoy and have fun with the device. A keyless synthesizer operational by a single hand of the user includes an ultrasound range sensor responsive to the distance “d” of a user's hand from the sensor for generating a sensor signal corresponding to the distance “d”. A programmable microcontroller programmed to convert the sensor signal to one of a plurality of discrete signals. A synthesizer is responsive to each discrete signal for generating a discrete tone. A multi-color generator is responsive to each discrete signal for generating a discrete color so that for each discrete signal corresponding to a distance “d” both a discreet tone and an associated discreet color are generated.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: July 5, 2022
    Inventor: Muhammad Ali Ummy
  • Patent number: 11366230
    Abstract: An optical device creates 3D images comprising a field of points, each point comprising horizontal, vertical, and distance metrics. The device comprises an illumination subsystem, comprising light sources, such as LEDs, a non-resonant beam steering element such as a micro-electro-mechanical system (MEMs) mirror, beam-shaping optics, a beam director plate, and a diffuser. The device also comprises an imaging subsystem with one or more optical detector chips that measure time-of-flight (TOF). Devices may dynamically and sequentially images solid-angle sub-regions of interest, in an arbitrary order, out of a total FOV, using eye-safe illumination. The corresponding received image portions are stitched together. The beam steering element is non-resonant, allowing arbitrary and rapid changes to its pointing vector. Beam shaping optics generates rectangular solid-angle illumination. One detector chip integrates light from one sub-region while another chip is reads out image data.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: June 21, 2022
    Inventors: Ralph Spickermann, Srinath Kalluri, Siddharth Jain
  • Patent number: 11360216
    Abstract: A method and system for positioning of autonomously operating entities are disclosed. A positioning system receives a current location of an entity capable of autonomous operation and generates a 3D virtual construct by splitting a spatial volume associated with the current location into a plurality of voxels. The positioning system receives spatial data corresponding to the current location generated by at least one sensor associated with the entity and determines an occupancy status of one or more voxels using the spatial data. A voxel map is configured from the 3D virtual construct based on the occupancy status of the one or more voxels. The positioning system generates a 3D map by overlaying visual semantic data onto the voxel map. The visual semantic data is derived from image frames corresponding to the current location captured by one or more imaging devices. The 3D map is capable of autonomously positioning the entity.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: June 14, 2022
    Assignee: VoxelMaps Inc.
    Inventor: Peter Atalla
  • Patent number: 11346670
    Abstract: A position estimating device is provided with an image acquiring unit that acquires images around a moving body, a moving body movement amount estimating unit that estimates an amount of movement of the moving body based on the images, and a moving body position estimating unit that estimates the position of the moving body based on the estimated amount of movement. The moving body movement amount estimating unit includes a tracking unit that tracks a first feature point to a second feature point, a distance calculating unit that calculates the distance from the moving body to the second feature point, an azimuth estimating unit that estimates the azimuth of the moving body based on the distance from the moving body to the second feature point, and a movement amount estimating unit which estimates the amount of movement of the moving body based on the azimuth of the moving body.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: May 31, 2022
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Alex Masuo Kaneko, Kenjiro Yamamoto, Shigenori Hayase
  • Patent number: 11335018
    Abstract: The present application provides a volumetric measuring method and apparatus based on a TOF depth camera, which is achieved by: acquiring depth images; denoising the depth images; selecting a first feature area of the first depth image and a second feature area of the second depth image that have been denoised respectively, traversing each pixel point in the first feature area at multiple traversal speeds, and matching a first depth value of a current pixel point with a second depth value of a target pixel point corresponding to the current pixel point in the second feature area to acquire multiple total similarity values; determining a traversal speed corresponding to a maximum total similarity value as an instantaneous speed at a current moment; calculating a package volume according to the instantaneous speed. The present application effectively solves the problem that an accurate package volume cannot be obtained when a speed of the conveyor belt is not fixed, and high in feasibility.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: May 17, 2022
    Assignee: WEIHAI INNOVATION INSTITUTE, QINGDAO UNIVERSITY
    Inventors: Weizhong Zhang, Zenghui Liu, Chi Zhang, Hongfeng Zhang, Cuimei Yuan, Yongpan Li, Tianyu Chen
  • Patent number: 11328185
    Abstract: A system and method for performing speckle correlation flow cytometry (SCFC). By subtracting out the stationary background when shining light through a sample (e.g., a vessel within a biological tissue), light only scattered by the desired targets (e.g., cells) can be captured and different types of targets (e.g., cells) can be distinguished by the autocorrelation of the speckle pattern. In this way, the targets (e.g., cells) can be classified and counted based on the features of their speckle correlations. The technique can be applied not only for noninvasive, label-free, in vivo CTC counting but also for counting other types of blood cells such as white blood cells or red blood cells.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: May 10, 2022
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Edward H. Zhou, Michelle Cua
  • Patent number: 11320522
    Abstract: A light detection and ranging (LIDAR) system uses optical sources to emit a continuous-wave (CW) optical beam and a frequency-modulated (FMCW) optical beam. A first set off optical components is coupled with the optical sources to generate a CW local oscillator (LO) signal from the CW optical beam, to generate an FMCW LO signal from the FMCW optical beam, and to combine the CW optical beam and the FMCW optical beam into a combined optical beam. A second set of optical components is coupled with the first set of optical components, to transmit the combined optical beam toward a target environment and to receive a target return signal from the target environment. A third set of optical components is coupled with the second set of optical components, to generate and detect a target velocity component of the target return signal and a target range component of the target return signal.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: May 3, 2022
    Assignee: Aeva, Inc.
    Inventors: Oguzhan Avci, Omer P. Kocaoglu, Neal N. Oza, Keith Gagne, Behsan Behzadi, Mina Rezk
  • Patent number: 11313779
    Abstract: A debris detection system includes a chamber configured to permit particles to pass through the chamber; an optical fiber or fiber optic cable providing a light path; a collimator configured to channel light from the light path into the chamber; and a reflector configured to reflect light back to the collimator for signal detection. In embodiments, the reflector may include a mirror. Methods for detecting particles and information and/or parameters associated with particles, including that associated with reflected light, are disclosed.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: April 26, 2022
    Assignee: Eaton Intelligent Power Limited
    Inventors: Gregory Kopansky, George P. Birch, Xin Pu, John Zielinski
  • Patent number: 11293794
    Abstract: A thermal flow sensor is provide for beverage metering using a heater in physical and thermal communication the beverage dispensing conduit. A temperature sensing element is positioned distant from and downstream from said heater along said direction of fluid flow. A computing device controls the heater and the temperature sensing element and computes a cumulative total volume during a metering cycle. The computing of a cumulative total volume during a metering cycle may be adapted or approximated to account for residual changes in temperature of the conduit or thermal sensing element metering cycles. Flow measurement is thereby without direct physical contact with the beverage itself, thereby providing cleanable fluid paths within the beverage conduit that limits or eliminate voids or trapped volumes. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: April 5, 2022
    Inventors: Lev Volftsun, Alex Belfore
  • Patent number: 11262285
    Abstract: A debris detection system includes a chamber configured to permit particles to pass through the chamber; an optical fiber or fiber optic cable providing a light path; a collimator configured to channel light from the light path into the chamber; and a reflector configured to reflect light back to the collimator for signal detection. In embodiments, the reflector may include a mirror. Methods for detecting particles and information and/or parameters associated with particles, including that associated with reflected light, are disclosed.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: March 1, 2022
    Assignee: Eaton Intelligent Power Limited
    Inventors: Gregory Kopansky, George P. Birch, Xin Pu, John Zielinski
  • Patent number: 11231502
    Abstract: Through discrimination of the scattered signal polarization state, a lidar system measures a distance through semi-transparent media by the reception of single or multiple scattered signals from a scattering medium. Combined and overlapped single or multiple scattered light signals from the medium can be separated by exploiting varying polarization characteristics. This removes the traditional laser and detector pulse width limitations that determine the system's operational bandwidth, translating relative depth measurements into the conditions of two surface timing measurements and achieving sub-pulse width resolution.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: January 25, 2022
    Assignees: THE REGENTS OF THE UNIVERSITY OF COLORADO, ASTRA LITE, INC.
    Inventors: Jeffrey P. Thayer, Geoffrey Crowley, Andrew W. Gisler, Steven Mitchell, Matthew Hayman
  • Patent number: 11231436
    Abstract: The flow rate of light scattering fluid is measured more easily and at a higher speed. A flow rate measuring method according to the present disclosure includes: generating two or more speckle images by continually imaging light scattering fluid to be measured, while defining time shorter than spatial correlation disappearance time corresponding to time in which spatial correlation between speckle patterns generated by the light scattering fluid disappears as exposure time, at a time interval shorter than the spatial correlation disappearance time; and calculating direction and speed of flow of the light scattering fluid from time variation of the speckle patterns between the two or more speckle images, in which the speckle images are imaged by using an imaging device mounted with an area sensor and a pixel group of a part of the area sensor or by using an imaging device mounted with a line sensor.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: January 25, 2022
    Assignees: SONY CORPORATION, SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Isamu Nakao, Noriyuki Kishii, Tetsuro Kuwayama, Kensei Jo
  • Patent number: 11203349
    Abstract: If a controller determines the calculation of a measured vehicle body velocity is possible, the controller calculates the measured vehicle body velocity as an estimated vehicle body velocity to conduct update processing for a K table and an AB table. If the controller determines the calculation of the measured vehicle body velocity is impossible, the controller extracts a conversion coefficient from the K table based on a detected running state while extracting a sensitivity coefficient and an offset coefficient from the AB table based on the temperature by a temperature sensor. The vehicle mounted apparatus calculates an axle pulse-based vehicle body velocity from the extracted conversion coefficient while calculating an acceleration-based vehicle body velocity from the extracted sensitivity coefficient and offset coefficient.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: December 21, 2021
    Assignee: Pioneer Corporation
    Inventors: Masahiro Kato, Ryoko Niihara
  • Patent number: 11193823
    Abstract: A multi-angle imager (10) comprises an imaging array (Mij) configured to receive light beams (Li) via one or more entrance pupils (A1) according to distinct fields of view (Vi) of an object (P0) along each of multiple entry angles (?i). The imaging array (Mij) comprises multiple imaging branches (M1j, M2j) configured to form respective optical paths for the light beams (L1, L2) through the imager (10) for imaging respective subsections (S1, S2) of the object (P0). Each imaging branch (M1j) comprises a distinct set of optical elements (M11, M21) configured to receive the respective light beam (L1) along the respective entry angle (?1) and redirect the respective light beam (L1) towards the imaging plane (P1). The light beams (L1, L2) from each of the multiple imaging branches (M1j, M2j) are redirected to travel in a common direction (y) between the imaging array (Mij) and the imaging plane (P1).
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: December 7, 2021
    Assignees: Stichting Nederlandse Wetenschappelijk Onderzoek Instituten, Airbus Defence and Space Netherlands B.V.
    Inventors: Aaldert Hidde Van Amerongen, Ersin Dogan, Jeroen Henricus Hubertus Rietjens
  • Patent number: 11194022
    Abstract: A detection system for a vehicle in an environment has a reflective member positioned along an x-y plane for rotation around a rotational axis orthogonal to the x-y plane. The reflective member has a plurality of reflective sides, each of the reflective sides sloping towards the rotational axis at a slope angle different than the slope angle of at least one of the others of the reflective sides. At least one detector is positioned offset from the rotational axis and the x-y plane, an active side of the plurality of reflective sides positioned to provide a field of view between the detector and the environment. An actuator is configured to rotate the reflective member around the rotational axis to change the active reflective side to a different one of the plurality of reflective sides.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: December 7, 2021
    Assignee: Veoneer US, Inc.
    Inventors: Bernard de Mersseman, Peter Hansson, Emil Hällstig
  • Patent number: 11187643
    Abstract: A laser sensor for detecting a particle density includes: a laser configured to emit a measurement beam, an optical arrangement being arranged to focus the measurement beam to a measurement volume, the optical arrangement having a numerical aperture with respect to the measurement beam, a detector configured to determine a self-mixing interference signal of a optical wave within a laser cavity of the laser, and an evaluator. The evaluator is configured to: receive detection signals generated by the detector in reaction to the determined self-mixing interference signal, determine an average transition time of particles passing the measurement volume in a predetermined time period based on a duration of the self-mixing interference signals generated by the particles, determine a number of particles based on the self-mixing interference signals in the predetermined time period, and determine the particle density based on the average transition time and the number of particles.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: November 30, 2021
    Assignee: TRUMPF PHOTONIC COMPONENTS GMBH
    Inventors: Petrus Theodorus Jutte, Johannes Hendrikus Maria Spruit, Alexander Marc Van der Lee, Joachim Wilhelm Hellmig, Roy Ovink, Ralph Engelbertus Theodorus Gudde
  • Patent number: 11131756
    Abstract: An example LIDAR system includes a detector, an amplifier, a time-to-digital converter (TDC), an integrator, an analog-to-digital converter (ADC), and a processor. The detector is configured to receive a reflected light pulse, where the reflected light pulse is reflected off of an object. The amplifier is coupled to the detector to generate an analog signal in response to the reflected light pulse. The TDC is coupled to the amplifier to generate a first time data and a second time data in response to the analog signal. The integrator is coupled to the amplifier to integrate the analog signal. The ADC is coupled to the integrator to sample an output of the integrator and to generate a digital sample. The processor is configured to process the first time data, the second time data, and the digital sample to estimate a total reflected energy of the reflected light pulse.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: September 28, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Volodimir Slobodyanyuk, Manav Raina
  • Patent number: 11112235
    Abstract: A portable electronic device is operable in a particulate matter concentration mode where the portable electronic device uses a self-mixing interferometry sensor to emit a beam of coherent light from an optical resonant cavity, receive a reflection or backscatter of the beam into the optical resonant cavity, produce a self-mixing signal resulting from a reflection or backscatter of the beam of coherent light, and determine a particle velocity and/or particulate matter concentration using the self-mixing signal. The portable electronic device is also operable in an absolute distance mode where the portable electronic device determines whether or not an absolute distance determined using the self-mixing signal is outside or within a particulate sensing volume associated with the beam of coherent light. If not, the portable electronic device may determine a contamination and/or obstruction is present that may result in inaccurate particle velocity and/or particulate matter concentration determination.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: September 7, 2021
    Assignee: Apple Inc.
    Inventors: Mehmet Mutlu, Miaolei Yan
  • Patent number: 11112502
    Abstract: In conventional laser radar systems, the wind velocity measurement accuracy cannot be improved without changing their time gate widths, which is a problem. A laser radar system according to the present invention includes: an optical oscillator to perform laser light oscillation; an optical modulator to modulate the laser light by oscillation of the optical oscillator; an optical antenna to emit the laser light modulated by the optical modulator into the atmosphere and to receive scattered light from an irradiated target as reception light; an optical receiver to perform heterodyne detection on the reception light received by the optical antenna; and a signal processor to calculate a spectrum of a reception signal obtained by the optical receiver's performing heterodyne detection, to decompose the spectrum using signal-to-noise ratios, and to calculate a velocity of an irradiated target from a decomposed spectrum.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: September 7, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Nobuki Kotake, Shumpei Kameyama
  • Patent number: 11066082
    Abstract: This invention provides technology that can provide a driver with an opportunity to decide whether or not to continue automatic drive control. A cancel point management system includes a cancel point collector that collects first notification information, indicating a manual cancel point which is a point where automatic drive control has been cancelled in response to operation by a driver in a notification vehicle, from the notification vehicle and a guide information distributer that distributes first guide information for showing the manual cancel point to a guide vehicle traveling on a road.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: July 20, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Xin Jin, Hironobu Sugimoto, Hiroaki Sakakibara, Shingo Kinashi, Kazuteru Maekawa, Sadahiro Koshiba, Takahiro Yamaguchi, Yuji Sato, Seiji Takahata
  • Patent number: 11060339
    Abstract: A vehicle includes a liftgate system for mitigating a liftgate from contacting an object within a closing path of the liftgate. The liftgate system includes the liftgate, a camera, and a processor. The liftgate includes a surface facing an interior of the vehicle when the liftgate is closed. The camera is disposed on the surface. The processor detects, via the camera, an object within a closing path of the liftgate. The processors estimate a trajectory of the object when the object is in motion. The processor controls the liftgate based on the estimated trajectory and a speed setting at which the liftgate closes.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: July 13, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Mahmoud Yousef Ghannam, Brian Bennie, Kevin Michael Lysik
  • Patent number: 11054434
    Abstract: The invention is related to a laser diode based multiple beam laser spot imaging system for characterization of vehicle dynamics. A laser diode based, preferably VCSEL based laser imaging system is utilized to characterize the vehicle dynamics. One or more laser beams are directed to the road surface. A compact imaging system including an imaging matrix sensor such as a CCD or CMOS camera measures locations or separations of individual laser spots. Loading status of vehicles and vehicles' pitch and roll angle can be characterized by analyzing the change of laser spot locations or separations.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: July 6, 2021
    Assignee: TRUMPF PHOTONIC COMPONENTS GMBH
    Inventor: Meng Han
  • Patent number: 11052387
    Abstract: A micro-fluidic device is described. The micro-fluidic device includes a semiconductor substrate; at least one micro-reactor in the semiconductor substrate; one or more micro-fluidic channels in the semiconductor substrate, connected to the at least one micro-reactor; a cover layer bonded to the semiconductor substrate for sealing the one or more micro-fluidic channels; and at least one through-substrate trench surrounding the at least one micro-reactor and the one or more micro-fluidic channels.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: July 6, 2021
    Assignees: IMEC VZW, Katholieke Universiteit Leuven, KU LEUVEN R&D, Panasonic Corporation
    Inventors: Ben Jones, Paolo Fiorini, Hiroyuki Tanaka
  • Patent number: 11057116
    Abstract: An optical orbital angular momentum (OAM) encoding system includes an optical source configured to generate a source light, an optical OAM encoder configured to encode the source light based on OAM modes to generate an encoded light, and an optical unit configured to direct the encoded light to a target.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: July 6, 2021
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventor: Joseph Robert Buck, Jr.
  • Patent number: 11040287
    Abstract: Disclosed are an experience-oriented virtual baseball game apparatus that enables a user to practice baseball or play a baseball game with a virtual player in a virtual baseball image projected on a screen based on the virtual baseball image, configured such that the user experiences a very interesting war of nerves between a pitcher and a batter, for example, the user pitches a ball toward the screen in order to induce a virtual batter in the image to ground out or to fly out through the location of his/her pitch or the virtual batter makes a hit or hits a home run due to a careless pitch of the user, through the baseball game, and a virtual baseball game control method using the same.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 22, 2021
    Assignee: NEWDIN CONTENTS CO., LTD.
    Inventor: Jin Young Kang
  • Patent number: 11041795
    Abstract: A reflective laser-based particle detector for detecting contamination particles moving through a vacuum. Laser light is directed through a vacuum access window in the containment vessel and toward a reflective surface on an inner surface opposite the window. A photonic detector is positioned to monitor reflected laser from the opposite inner surface inside the vessel and is capable of detecting perturbations of the reflected light. The system makes use of optical interferometry techniques embodied as a photonic integrated circuit to detect the particles. The reflective laser-based system can be placed entirely outside the vacuum thereby avoiding the need for breaking the vacuum environment to check for accumulation of contaminant particles.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: June 22, 2021
    Assignee: JEFFERSON SCIENCE ASSOCIATES, LLC
    Inventors: Wenze Xi, Rongli Geng, Carl Zorn, Brian J. Kross, Andrew G. Weisenberger, Jack McKisson, John McKisson
  • Patent number: 11041876
    Abstract: A system for measuring the distance of an obstacle, in which an optical flow is measured radially while rotating along a circle in a plane intersecting the obstacle; and the distance of the obstacle is determined according to the amplitude of the optical flow, the radius of the circle, and the speed of rotation.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: June 22, 2021
    Assignees: UNIVERSITE D'AIX-MARSEILLE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Stephane Marie Vincent Viollet, Fabien Thierry Alain Colonnier, Erik Vanhoutte
  • Patent number: 11035678
    Abstract: Embodiments include apparatus and methods for generating a localization geometry or occupancy grid for a geographic location. Point cloud that describes a vicinity of a pathway is collected by a distance sensor and describing a vicinity of the pathway. The point cloud data is reduced or filtered to a predetermined volume with respect to the roadway. The remaining point cloud data is projected onto a two-dimensional plane including at least one pixel formation. A volumetric grid is defined according to the at least one pixel formation, and a voxel occupancy for each of a voxels forming the volumetric grid is determined. The arrangement of the voxel occupancies or a sequence of data describing the voxel occupancies is a localization geometry that describes the geographic location of the pathway.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: June 15, 2021
    Assignee: HERE Global B.V.
    Inventors: David Doria, Xin Chen
  • Patent number: 10969199
    Abstract: An optical system for providing crosswind aim point correction for a sniper rifles and similar weapons comprising an optical transmitter, an optical receiver, a display device and a processor. The optical transmitter produces a collimated laser beam for illuminating a spot on the target. The optical receiver receives optical signals transmitted by the optical transmitter and scattered back from the target and converts the optical signals into time varying electrical signals. The processor processes the time varying electrical signals to determine a path weighted average crosswind. The processor is equipped with software that permits it to calculate the path-weighted average crosswind utilizing at least three different methods.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: April 6, 2021
    Inventors: Mikhail Belenkil, Timothy Brinkley
  • Patent number: 10964221
    Abstract: An improved ground collision avoidance system and method is provided for aircraft driven during ground operations by electric taxi drive systems. One or more monitoring devices employing scanning LiDAR technology may be mounted in exterior locations on or near aircraft landing gears or aerodynamically in locations on the aircraft fuselage selected to generate panoramic three-dimensional images from any point of view within or without the aircraft as the aircraft is driven independently within an airport ramp area. The point of view images are transmitted in real time to displays in the aircraft cockpit and may be transmitted to displays outside and remote from the aircraft, allowing the pilot and airport personnel to monitor the aircraft moving within the ramp environment and to respond quickly to control the aircraft's electric taxi drive system-powered ground travel to avoid and prevent a potential collision.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: March 30, 2021
    Assignee: Borealis Technical Limited
    Inventors: Jan Vana, Joseph J. Cox, Isaiah W. Cox
  • Patent number: 10948574
    Abstract: An optoelectronic sensor (10) for detecting an object in a monitored zone (20) that has at least one light transmitter (22) for transmitting a plurality of mutually separated transmitted light beams (26a-d); a plurality of light receivers (34a-d) that are each associated with one of the transmitted light beams (26a-d) for generating a received signal from the associated light beam (26, 30) remitted at the object; and an evaluation unit (46) that is configured to acquire information on the object at the respective point of incidence of the transmitted light beam (26a-d) from the received signal of the light receiver (34a-d) that is associated with the transmitted light beam (26a-d) and to additionally consider at least one received signal of a light receiver (34a-b) that is not associated with the transmitted light beam (26a-d) on the acquiring of information on the object at the point of incidence of at least one transmitted light beam (26a-d).
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: March 16, 2021
    Assignee: SICK AG
    Inventors: Hartmut Gimpel, Roger Buser
  • Patent number: 10921449
    Abstract: A measuring device, in particular a tachymeter, laser scanner, profiler, or laser tracker, having an electronic laser distance measuring module, which comprises an optical transmitting channel having a transmitting unit and an optical receiving channel having a receiving unit for laser measuring radiation, wherein the beam guiding in the electronic laser distance measuring module is implemented by means of fiber optics, and wherein a settable attenuation unit based on an optically active crystal for attenuating the laser measuring radiation generated by the transmitting unit is provided in the optical transmitting channel.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: February 16, 2021
    Assignee: HEXAGON TECHNOLOGY GENTER GMBH
    Inventors: Jürg Hinderling, Julien Singer, Simon Bestler
  • Patent number: 10900987
    Abstract: A method for particle velocity measurement may include transmitting an optical beam from an optical source, splitting the optical beam into a first beam and a second beam where the first beam and the second beam each have different polarizations, directing the first beam and the second beam toward an object, and determining a velocity of the object based on receiving the first and second beams reflected from the object.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: January 26, 2021
    Assignee: The Johns Hopkins University
    Inventor: David W. Blodgett
  • Patent number: 10901554
    Abstract: A method for recognizing an obstacle includes: acquiring a first dynamic parameter of the terminal at a current moment; acquiring a second dynamic parameter of the terminal at the current moment; and performing motion analysis on the obstacle based on the first dynamic parameter and the second dynamic parameter, to obtain an event recognition result of the obstacle.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: January 26, 2021
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Runyu Shi, Jinlong Li
  • Patent number: 10871445
    Abstract: A method and system for optical vortex transmissometry. The method uses optical orbital angular momentum (OAM) and optical vortices to discriminate coherent non-scattered light from incoherent scattered light. The system includes a laser which transmits a Gaussian laser beam through a medium. An OAM generating device is placed before a photodetector receiver. Coherent, non-scattered light passing through the OAM generating device forms an optical vortex, used to discriminate against the unwanted scattered signal that doesn't form a vortex. Alternatively, the system includes a transmitter which generates one or more OAM modes which are transmitted through a turbid medium. At the receiver, an OAM detection device analyzes the OAM mode spectrum of the received light. Coherent non-scattered light retains the OAM encoded at the transmitter, while scattered light does not. The attenuation of the channel is determined by comparison of the received OAM mode spectrum relative to the transmitted OAM mode spectrum.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: December 22, 2020
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Brandon Cochenour, Amanda Alley, Alan Edward Laux, Linda Mullen
  • Patent number: 10859698
    Abstract: In an aspect, a processing apparatus receives detection signaling indicating a field incursion in a detection field of a LIDAR device mounted to a marine vessel and oriented to detect objects within a free space alongside the marine vessel. The processing apparatus applies plausibility testing to the field incursion, including determining whether parameters derived from the detection signaling are characteristic of a human body falling from the marine vessel through the detection field. The processing apparatus outputs signaling indicating a person overboard event to an alarm or control system onboard the marine vessel, in response to the field incursion passing the plausibility testing.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: December 8, 2020
    Assignee: DATAGARDEN, INC.
    Inventors: John E Moody, Clint Harvey
  • Patent number: 10825241
    Abstract: A wearable device is configured with a one-dimensional depth sensor (e.g., a LIDAR system) that scans a physical environment, in which the wearable device and depth sensor generate a point cloud structure using scanned points of the physical environment to develop blueprints for a negative space of the environment. The negative space includes permanent structures (e.g., walls and floors), in which the blueprints distinguish permanent structures from temporary objects. The depth sensor is affixed in a static position on the wearable device and passively scans a room according to the gaze direction of the user. Over a period of days, weeks, months, or years the blueprint continues to supplement the point cloud structure and update points therein. Thus, as the user continues to navigate the physical environment, over time, the point cloud data structure develops an accurate blueprint of the environment.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: November 3, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Jeffrey Sipko, Kendall Clark York, John Benjamin Hesketh, Kenneth Liam Kiemele, Bryant Daniel Hawthorne
  • Patent number: 10814622
    Abstract: A liquid ejection apparatus is provided that includes a plurality of liquid ejection head units that are configured to eject liquid onto a conveyed object being conveyed; a detection unit that is provided with respect to each liquid ejection head unit of the plurality of liquid ejection head units and is configured to output a detection result indicating at least one of a position, a moving speed, and an amount of movement of the conveyed object with respect to a conveying direction of the conveyed object; and a control unit configured to control the each liquid ejection head unit of the plurality of liquid ejection head units to eject liquid at a timing based on a plurality of the detection results of a plurality of the detection units.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: October 27, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsunobu Gohda, Tsuyoshi Nagasu, Koichi Kudo, Tomoaki Hayashi, Masayuki Sunaoshi, Masahiro Mizuno
  • Patent number: 10810724
    Abstract: An automatic separating and identifying system of insects on leaves that includes an insects separation system, an insects dispersing system, and an insects identification system. The insects separation system includes a circulating container and water circulation mechanism. The dispersing system includes an examination mesh that is designed to receive the water with the insects. The identification system includes a camera, lighting means, a computer with a database and algorithm, and is designed to identify types and amounts of the insects on the examination mesh.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: October 20, 2020
    Inventor: Pinhas Yosef Akrav
  • Patent number: 10786858
    Abstract: An ejector for jetting droplets of viscous media onto a substrate is disclosed. The ejector comprises a jetting nozzle having a nozzle space and a nozzle outlet, and an impacting device for impacting a volume of the viscous medium in the nozzle space such that droplets of viscous medium is jetted from the nozzle space through the nozzle outlet towards the substrate. The ejector also comprise a sensor arrangement arranged after the jetting nozzle in the jetting direction, wherein the sensor arrangement is adapted to detect a jetted droplet of viscous medium passing thereby.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: September 29, 2020
    Assignee: Mycronic AB
    Inventors: Andreas Bergstrom, Eric Eskang, Johan Bergstrom, Martin Dahlberg
  • Patent number: 10776934
    Abstract: A movement amount detecting device performs discrete Fourier transform onto N-th image data and N+1-th image data, thereby generating N-th wave number space data and N+1-th wave number space data. The movement amount detecting device obtains a target speed of a sheet, and determines a cutoff value based on the obtained target speed and an exposure time in an image sensor. The movement amount detecting device calculates an amount of movement of the sheet based on a phase difference between the N-th wave number space data and the N+1-th wave number space data in a wave number component smaller than the cutoff value.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: September 15, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Takaki Kato, Yuji Kobayashi, Masayuki Fukunaga
  • Patent number: 10768091
    Abstract: The present disclosure relates to a particle counting method and system. The particle counting method, comprises: obtaining distances between positions closest to a centers of a light channel in paths along which particles pass through the light channel and the centers of the light channel; according to an optical density distribution of the light channel, compensating amplitudes of the pulse signals of the particles when passing through the positions closest to the centers of the light channel in the path along which the particles pass through the light channel such that the compensated amplitudes of the pulse signals of the particles are equal to amplitudes of pulse signals of the particles with the same particle diameters when passing through the centers of the light channel; screening and counting the particles according to the compensated amplitudes of the pulse signals to realize counting of particles with respective particle sizes.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: September 8, 2020
    Assignees: Jiangsu Sujing Group Co., Ltd, Sujing Group Automation Instrument Equipment Corporation
    Inventors: Fengfei Liang, Jiyong Sun, Weidong Shen, Danong Zhou, Jian Chen
  • Patent number: 10753886
    Abstract: A method is disclosed for determining the speed of a rolling stock, for example the belt speed of a rolling belt, wherein electromagnetic radiation in the microwave range is transmitted to the rolling stock by at least one transmitting and receiving device and the belt speed is determined on the basis of the reflected and received reflection signal in an evaluation device. A device for carrying out such method is also disclosed.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: August 25, 2020
    Assignee: PRIMETALS TECHNOLOGIES AUSTRIA GMBH
    Inventors: Georg Keintzel, Günther Winter
  • Patent number: 10739457
    Abstract: A laser radar device includes: a light source; a projection light scanner that scans one part of light split off from emission light of the light source, and that generates transmission light for radiating onto a target object; an image forming section that forms plural respective reception lights of the transmission light reflected by respective locations of the target object into an image on a single flat plane as plural image-formation points; an optical receiver that is disposed at the plural image-formation points, and that includes plural unit optical reception sections for mixing each of the plural reception lights together with a reference light and performing optical heterodyne detection; and a reference light scanner that scans or distributes another light split off from the emission light from the light source, and that generates the reference light for radiating onto each of plural of the unit optical reception sections.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: August 11, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Daisuke Inoue, Tadashi Ichikawa, Tatsuya Yamashita, Akari Nakao, Kazuo Hasegawa
  • Patent number: 10734783
    Abstract: A laser oscillator of the present invention comprises: a semiconductor laser module; a first optical fiber for propagating a laser beam from the semiconductor laser module; and a first prism including a first input surface fusion-bonded to the first optical fiber and receiving the laser beam having been input from the first optical fiber, a first reflection surface for reflecting the laser beam having been input from the first input surface and for transmitting a stimulated Raman scattered beam, and a first output surface for outputting the laser beam having been reflected on the first reflection surface.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: August 4, 2020
    Assignee: FANUC CORPORATION
    Inventor: Tetsuhisa Takazane
  • Patent number: 10725156
    Abstract: A method includes generating a first optical signal containing doublet pulses. Each doublet pulse includes a first pulse and a second pulse. The second pulses of the doublet pulses are in quadrature with the first pulses of the doublet pulses. The method also includes transmitting the first optical signal towards a target and receiving a second optical signal containing reflected doublet pulses from the target. Each reflected doublet pulse includes a first reflected pulse and a second reflected pulse. The method further includes performing in-phase and quadrature processing of the first and second reflected pulses and identifying one or more parameters of the target based on the in-phase and quadrature processing.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: July 28, 2020
    Assignee: Raytheon Company
    Inventors: Maurice J. Halmos, Joseph Marron, Jae H. Kyung