Patents Examined by Mark Hellner
  • Patent number: 11029392
    Abstract: A computational ghost imaging apparatus comprising a first electromagnetic radiation source (100) and a control system configured to cause electromagnetic radiation from said first source to be applied to a selected plurality of three-dimensional portions of an atmospheric volume between a second electromagnetic radiation source (110) and object or region of interest (106) so as to heat or ionise the air within said selected portions and create an atmospheric spatial radiation modulator (108) of a specified pattern for causing said object or region of interest to be irradiated with spatially modulated electromagnetic radiation in said specified pattern, the apparatus further comprising a detector for receiving electromagnetic radiation reflected from said object or region of interest (106), and a processing module for reconstructing an image of said object or region of interest using data output by said detector.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: June 8, 2021
    Assignee: BAE Systems plc
    Inventor: Nicholas Giacomo Robert Colosimo
  • Patent number: 11029406
    Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light and a scanner configured to scan the emitted pulses of light across a field of regard of the lidar system. The lidar system also includes a receiver configured to detect a portion of the emitted pulses of light scattered by a target located a distance from the lidar system. The receiver includes an aluminum-indium-arsenide-antimonide (AlInAsSb) avalanche photodiode (APD) configured to: receive a pulse of light of the portion of the emitted pulses of light scattered by the target and produce an electrical-current pulse corresponding to the received pulse of light. The lidar system further includes a processor configured to determine the distance from the lidar system to the target based at least in part on a round-trip time of flight for the received pulse of light.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: June 8, 2021
    Assignee: Luminar, LLC
    Inventor: Joseph G. LaChapelle
  • Patent number: 11029394
    Abstract: A Lidar system is provided. The Lidar system may comprise: a plurality of light sources configured to emit a plurality of light beams, the plurality of light sources are mounted to a first mounting apparatus comprising a cooling feature; a plurality of optical fiber elements, and each of the plurality of light sources is optically coupled to an input end of one or more optical fiber elements from the plurality of optical fiber elements; and a second mounting apparatus comprising at least one mounting unit coupled to an emitting end of the plurality of optical fiber elements, and the at least one mounting unit is configured to control an output direction of the plurality of light beams individually, and a distribution pattern of the plurality of light beams emitted from the emitting end of the plurality of optical fiber elements.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: June 8, 2021
    Inventors: Jiasheng Li, Hongguang Wang, Shaoqing Xiang
  • Patent number: 11022681
    Abstract: A system and method for rendering terrain on a display is disclosed. The system and method include a computer-implemented distance measuring system integrated in a drone to enable scanning of a terrain. The scanning may be performed from a given height. This results in the levels of the terrain which may then be rendered using a color scale. The rendering identifying the different levels may be superimposed over an image of the terrain, such as on a display, for example. By so doing, the superimposed terrain with the rendering provides the viewer of the display an enhanced view of the terrain. The system and method may be utilized when the viewer is watching the display, such as when watching golf and a player is about to putt on the putting green. The rendering may be removed once the putt is initiated.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: June 1, 2021
    Inventor: Louis Caporizzo
  • Patent number: 11022683
    Abstract: A light detection and ranging system includes optical sources configured to emit respectively first and second optical beams that have opposite polarizations. Taps split the first and second optical beams into first and second high-power path and low-power path optical beams. A first polarization beam splitter combines the first and second high-power path optical beams into a single spatial mode optical beam, which lensing optics launches toward the target, and collects light incident upon the target into a return path. A second polarization beam splitter splits the return optical beam into first and second spatial mode optical beams. Mixers mix the first and second spatial mode optical beams with respectively the first and second low-power path optical beams to produce optical beams first and second beat frequencies, which optical detectors detect and from which range and velocity of the target are determinable.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: June 1, 2021
    Assignee: Aeva, Inc.
    Inventor: Mina Rezk
  • Patent number: 11015932
    Abstract: A surveying device including a base defining a base axis, a support structure rotatable around the base axis and defining a rotation axis, a light emitting unit emitting light and a light receiving unit for detecting reflected light. A rotation unit is mounted on the support structure for emitting and receiving light in defined directions, wherein the rotation unit comprises a rotation body rotatable around the rotation axis including a scanning mirror arranged tilted relative to the rotation axis. An imaging unit for capturing an image of a scanning region is provided. The imaging unit comprises a camera fixedly arranged on the support structure, the rotation body comprises at least one reflecting deflecting surface assigned to the camera. The imaging unit and the rotation body are arranged so that the field of view comprises a defined field angle around the rotation axis.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: May 25, 2021
    Inventors: Stefan Martin Benjamin Gächter Toya, Thomas Jensen, Andreas Schwendener, Tim Mayer
  • Patent number: 11002852
    Abstract: Disclosed herein is a method and apparatus for determining time of arrival of incident photons. The time of arrival may be determined with high time accuracy based on the times a voltage across a capacitor being charged by charge carriers generated from the incident photons at which the voltage reaches a plurality of thresholds, respectively, and the stable value of the voltage.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: May 11, 2021
    Inventors: Peiyan Cao, Yurun Liu
  • Patent number: 10996321
    Abstract: An optical device provided by the present invention can comprise: a light transmitting unit for generating a first beam for photographing a certain area; a light receiving unit for sensing a second beam returning from the certain area; a light separating unit for distinguishing and transmitting the first beam from the second beam; and a detection unit including a micro electro-mechanical system mirror (MEMS mirror) for transmitting the first beam by changing an optical axis up to a first steering angle, and for receiving the second beam.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: May 4, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Chang Hyuck Lee, Young Seop Moon
  • Patent number: 10996323
    Abstract: A time-of-flight (TOF) imaging system includes illumination circuitry, such as a laser, one or more sensors, such as SPAD arrays, and image processing circuitry. The illumination circuitry illuminates one or more objects in an environment around the TOF imaging system. The sensors generate an image data stream based on reflections from the one or more illuminated objects, and possibly based on reflections from one or more reflectors. The image processing circuitry generates counts associated with distances based on the image data stream and possibly a reflection data stream and stores the generated counts in a histogram using a plurality of bins. Each of the plurality of bins stores counts associated with a respective distance range. A size of a bin in the plurality of bins is a function of the respective distance range, and may be based on a logarithmic function of the distance associated with the bin.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: May 4, 2021
    Inventors: Sarrah Moiz Patanwala, Neale Dutton
  • Patent number: 10996334
    Abstract: A lidar system where a laser creates a laser output and the sequence generator creates a pseudorandom noise sequence. The laser output is directed into two paths. On the first path, the laser output is directed to a first modulator. The first modulator encodes the laser output with the pseudorandom noise sequence to produce an encoded output signal. The encoded output signal is amplified and directed toward a target, wherein a back-scattered signal is reflected back from the target. On the second path, the laser output is directed to a second modulator. The second modulator modulates the laser output to produce an oscillator signal. The back-scattered signal is aligned and is mixed with the oscillator signal from the second modulator. The resulting mixed signal is converted into a corresponding RF output signal. The RF output signal is cross-correlated with the pseudorandom noise sequence to acquire target data.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: May 4, 2021
    Assignee: Discovery Semiconductors, Inc.
    Inventors: Shubhashish Datta, Abhay Joshi
  • Patent number: 10996320
    Abstract: An appropriate light emission frequency is set in an electronic device that determines a phase difference between radiation light and reflected light. The electronic device includes a light emission unit, a determination unit, and a setting unit. The light emission unit radiates intermittent light in synchronization with a synchronization signal at a set frequency that is set. The light reception unit generates received light data by receiving reflected light of the intermittent light. The determination unit determines presence or absence of a predetermined object on the basis of the received light data. The setting unit sets, in the light emission unit, as the set frequency, a frequency that is higher, the smaller the distance to the predetermined object, in a case where presence of the predetermined object is determined.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: May 4, 2021
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Takeshi Aoki
  • Patent number: 10989605
    Abstract: Systems and methods presented herein provide for calibrating a streak tube. The method includes inserting fiducial light to received optical signal. The fiducial light has at least one predetermined attribute. The method also includes correcting environmental degradation of the streak tube based on the at least one predetermined attribute of the fiducial light to calibrate the streak tube.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: April 27, 2021
    Inventors: Steven P. Anderson, Lucas Hill
  • Patent number: 10983219
    Abstract: Material-Sensing Light Imaging, Detection, And Ranging (LIDAR) systems optionally include a laser configured to generate a light pulse, a beam steerer configured to produce a polarization-adjusted light pulse emitted towards an object, at least one polarizer configured to polarize reflected, scattered, or emitted light returned from the object, and a processor configured to detect at least one material of the object based on an intensity and polarization of the polarized reflected, scattered or emitted light from the object. The beam steerer may include a kirigami nanocomposite. Methods are also provided, including, for example, generating a light pulse, adjusting a polarization of the light pulse to produce a polarization-adjusted light pulse emitted towards an object, polarizing reflected, scattered, or emitted light returned from the object, and detecting at least one material of the object based on an intensity and polarization of the polarized reflected, scattered or emitted light from the object.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: April 20, 2021
    Inventors: Nicholas A. Kotov, Sharon Glotzer, Brian Shahbazian, Ryan Branch, Lizhi Xu, Wonjin Choi, Minjeong Cha, Matthew Spellings
  • Patent number: 10983197
    Abstract: A Lidar system and method is provided for adaptive control. The Lidar system comprises: an array of emitters each of which is individually addressable and controlled to emit a multi-pulse sequence, at least a subset of the emitters are activated to emit multi-pulse sequences concurrently according to an emission pattern; an array of photosensors each of which is individually addressable, at least a subset of the photosensors are enabled to receive light pulses according to a sensing pattern, each of the subset of photosensors is configured to detect returned light pulses returned and generate an output signal indicative of an amount of optical energy associated with at least a subset of the light pulses; and one or more processors electrically coupled to the array of emitters and the array of photosensors and configured to generate the emission pattern and the sensing pattern based on one or more real-time conditions.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: April 20, 2021
    Inventors: Xuezhou Zhu, Kai Sun, Shaoqing Xiang, Jin Yang, Chenluan Wang, Xugang Liu, Wenyi Zhu, Tingyu Yao, Shixiang Wu, Hui Yin
  • Patent number: 10969476
    Abstract: A time of flight (TOF) sensor device employs a measuring sequence that facilitates accurate distance measurement across a high dynamic range. In one or more embodiments, for a given measuring sequence in which a distance of an object or surface corresponding to a pixel is to be determined, the TOF sensor device performs multiple iterations of a measuring cycle, whereby for each successive iteration the number of emitted and measured pulses that are accumulated for the iteration is increased relative to the previous iteration of the measuring cycle. In this way, multiple values of increasing resolution are measured for the same physical entity over a corresponding number of measuring cycles. The sensor then selects a value from the multiple measured values that yields the highest resolution without saturating the pixel, and this value is used to determine the pulse propagation time and object distance.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: April 6, 2021
    Assignee: Rockwell Automation Technologies, Inc.
    Inventor: Frederic Boutaud
  • Patent number: 10969344
    Abstract: An apparatus for detecting the presence of liquid in a high pressure gas pipeline (4) is described. The apparatus comprises a sight glass (2), providing a window into the inside of the pipeline, and a light sensor (1), for receiving and sensing reflected light from the inside of the pipeline through the sight glass. The apparatus also comprises a processor, for automatically detecting the presence of a liquid based on the sensed reflected light. In this way, automatic detection of the presence of liquid in a gas pipeline can be achieved based on the measurement of reflected light, which can be expected to differ when liquid is present compared with when no liquid is present. No visual inspection by an operator is required—although the data can be stored for later operator use or verification if necessary.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: April 6, 2021
    Inventors: Paul Stockwell, David Widdup, Jon Raynes
  • Patent number: 10969473
    Abstract: An infrared range-measurement device includes an emitting module, a receiving module and a calculating module, the emitting module includes an emitting light source and a driving circuit, and the receiving module includes a planar array photosensitive chip. The emitting light source, under the drive of the driving circuit, emits a test light beam, the test light beam is reflected by an object in a test range and then is incident on the planar array photosensitive chip, and the calculating module outputs a test light intensity or a test distance; an emitting lens is provided in an emitting light path of the emitting module. By shaping the test light beam to control a divergence angle and a shape of the light beam, and to make it match with the set working area of the planar array photosensitive chip, the overall utilization ratio of the test light beam is increased.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: April 6, 2021
    Assignee: BENEWAKE (BEIJING) CO., LTD.
    Inventors: Qingshun Zhang, Jiang Wu, Kai Zheng, Da Shu, Yuan Li
  • Patent number: 10969489
    Abstract: A method for detecting and autonomously tracking a target object using a LIDAR sensor that continuously emits laser pulses onto the target object and generates a 3-D point cloud from measurement points reflected by the target objects at predetermined time intervals. A current relative position of the target object is calculated for six degrees of freedom of movement of the target object at the predetermined time intervals based on algorithms estimating the position. The method includes acquiring a high-resolution initializing point cloud over a plurality of predetermined time intervals, generating a reference model with a small number of measurement points from the initializing point cloud, and, in subsequent iterative steps, determining temporal position clouds and comparing the position clouds with the reference model using the algorithms. Position information of the target object is calculated, wherein the reference model is continuously adapted to the changes in the point clouds.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: April 6, 2021
    Assignee: Jena-Optronik GmbH
    Inventors: Christoph Schmitt, Florian Kolb
  • Patent number: 10962645
    Abstract: The present disclosure relates to a reception apparatus, a reception method, a transmission apparatus, a transmission method, and a communication system capable of identifying ID information from an image captured with gated imaging. A reception apparatus of a first aspect of the present disclosure includes: a gated imaging unit that emits pulsed light to a subject existing at any given distance, and performs gated imaging by receiving reflection light of the pulsed light from the subject by controlling exposure timing on the basis of a time it takes for the emitted pulsed light to reciprocate the any given distance; and an identification unit that identifies ID information transmitted as an optical signal by a transmission apparatus existing in an imaging direction of the gated imaging on the basis of a plurality of time-series images obtained by cyclic gated imaging with the gated imaging unit.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: March 30, 2021
    Inventor: Mitsuharu Ohki
  • Patent number: 10962349
    Abstract: A device for measuring spatial points includes an ergonomic manual handle for facilitating efficient three-dimensional measurement using data processing.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: March 30, 2021
    Assignee: Flexijet GmbH
    Inventors: Thomas Roller, Urs Reich, Thomas Fischer