Patents Examined by Yuqing Xiao
  • Patent number: 11402506
    Abstract: A laser measuring instrument comprises a light emitter, a driver, a scanning unit, a light receiving signal processing module for detecting a reciprocating time per pulsed light of a distance measuring light and performing a distance measurement, and a timing generating circuit for issuing a timing signal, wherein the timing generating circuit is configured to issue a timing signal for making the light emitter pulse-emit in a short cycle and a timing signal for pausing a light emission, the driver is configured to make the light emitter pulse-emit according to the timing signals, a light emission time interval in the short cycle is set such that a measuring point is multiply irradiated with the pulsed light by two or more times within a time when the pulsed light passes the measuring point, and the light receiving signal processing module is configured to integrate acquired light receiving signals and to carry out the distance measurement.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: August 2, 2022
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Kaoru Kumagai, Ken-ichiro Yoshino
  • Patent number: 11402206
    Abstract: A surveying instrument comprises a distance measuring light projecting module, a light receiving module, an optical axis deflector which integrally deflects a distance measuring optical axis and a light receiving optical axis, a wide-angle image pickup module, a projecting direction detecting module configured to detect an optical axis deflection angle and a deflecting direction, a narrow-angle image pickup module, a distance measurement calculating module and an arithmetic control module, wherein the arithmetic control module is configured to control the optical axis deflector and the distance measurement calculating module, wherein the distance measurement calculating module is configured to perform a distance measurement of a measuring point based on a light emission timing of a distance measuring light and a light reception timing of a reflected distance measuring light, and wherein the narrow-angle image pickup module is configured to acquire a narrow-angle image with the distance measuring optical axis
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: August 2, 2022
    Assignee: TOPCON Corporation
    Inventors: Fumio Ohtomo, Ikuo Ishinabe, Kaoru Kumagai
  • Patent number: 11402203
    Abstract: A sensor module for connection to a handheld rangefinder instrument and for providing sensor data for the rangefinder instrument includes an electronic interface for connection to an applicable interface of the rangefinder instrument, and at least one electronic sensor component for generating the sensor data. A system for handheld measurement of distances to a surface region of an object includes a sensor module of this kind and a handheld rangefinder instrument having a first laser rangefinder. When the interfaces are connected to one another, the sensor module is configured for transmitting the sensor data to the rangefinder instrument, and the interfaces are configured for transmitting electric power from the rangefinder instrument to the sensor module, in which the sensor module is configured to operate the at least one sensor component by means of the electric power transmitted by the rangefinder instrument.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: August 2, 2022
    Assignee: LEICA GEOSYSTEMS AG
    Inventors: Thomas Bösch, Markus Hammerer
  • Patent number: 11397071
    Abstract: A system, method, and console for interactive gaming including an anti-blinding target game is disclosed. The system includes a console, a LIDAR system, and a server all of which are communicatively coupled via a network. The console is configured to project gameplay visuals while continuously using the LIDAR system to monitor the gameplay environment. Upon the LIDAR system detecting a significant modification to the gameplay environment, the console initiates an anti-blinding mode resulting in black light being emitted from the console in order to prevent impacting the eye health of users.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: July 26, 2022
    Inventor: Vladimir V. Maslinkovskiy
  • Patent number: 11397246
    Abstract: A laser scanner includes multiple measuring beams for optical surveying of an environment. The laser scanner is configured to provide scanning with at least two different multi-beam scan patterns, in which each multi-beam scan pattern is individually activatable by a computing unit of the laser scanner.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: July 26, 2022
    Assignee: HEXAGON TECHNOLOGY CENTER GMBH
    Inventors: Charles Leopold Elisabeth Dumoulin, Jürg Hinderling
  • Patent number: 11391821
    Abstract: A airborne range finder arranged on an aircraft for surveying a target, the finder comprising an emitter configured for emitting electromagnetic pulses towards the target, a receiver for receiving backscattered pulses, wherein the receiver comprises a projection surface comprising an inner area and an outer area, focusing optics configured for imaging pulses backscattered from a distance equal to or longer than a threshold distance onto the inner area, and pulses backscattered from a distance shorter than said threshold distance onto the inner area and a part of the outer area, a detector configured for detecting and outputting pulses imaged onto the projection surface, and a recorder configured for reading the detector and storing pulses detected only within the inner area as target pulses, storing pulses detected within the outer area as near-field pulses, and tagging each stored pulse with a corresponding pulse reception time, and a control unit.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: July 19, 2022
    Assignee: LEICA GEOSYSTEMS AG
    Inventor: Quan Yang
  • Patent number: 11391822
    Abstract: An apparatus includes a detector, a light source configured to emit light, a reflecting apparatus having multiple reflective facets, and a mirror. The reflecting apparatus is configured to rotate around an axis and arranged to reflect the emitted light from the light source and reflect backscattered light. The mirror is arranged to reflect the backscattered light from the reflecting apparatus towards the detector.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: July 19, 2022
    Assignee: Seagate Technology LLC
    Inventors: Kevin A Gomez, Zoran Jandric, Krishnan Subramanian, Pierre Asselin, Dan Mohr, Raghu Ambekar Ramachandra Rao
  • Patent number: 11385331
    Abstract: This disclosure provides systems, methods, and apparatus related to light detection and ranging. In one aspect, a method comprises providing an apparatus. The apparatus comprises a LiDAR unit and a LiDAR enclosure. The LiDAR enclosure comprises a four-sided container having a square or rectangular cross-section with a first open end and a second open end comprising two opposite ends of the four-sided container. The LiDAR unit is attached to a mounting area inside the four-sided container. A reflective material is disposed on an interior of a second side and a third side of the four-sided container. Laser light is generated with the LiDAR unit. The laser light that has interacted with environment surrounding the LiDAR enclosure and that has been reflected back to the LiDAR unit is detected. The detected laser light is processed to construct an image of the environment surrounding the LiDAR enclosure.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: July 12, 2022
    Assignee: The Regents of the University of California
    Inventors: Mark S. Bandstra, Brian J. Quiter
  • Patent number: 11385351
    Abstract: A method of adjusting a detection threshold in a frequency-modulated continuous wave (FMCW) light detection and ranging (LIDAR) system includes determining a first confidence threshold for detecting a first target from multiple targets within a frequency range, wherein the frequency range comprises frequencies corresponding to the targets. The method further includes determining a subset of frequencies within the frequency range for detecting a second target. The second target transmits signals within the subset of frequencies lower than the first confidence threshold. The method further includes adjusting the first confidence threshold to a second confidence threshold at the subset of frequencies for detecting the second target within the subset of frequencies and restoring the second confidence threshold to the first confidence threshold outside the subset of frequencies for detecting the first target.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: July 12, 2022
    Assignee: Aeva, Inc.
    Inventors: Jose Krause Perin, Kumar Bhargav Viswanatha, Rajendra Tushar Moorti, Mina Rezk
  • Patent number: 11385334
    Abstract: An optical scanning device includes a supporting body 2; an optical waveguide composed of a single crystal having electro-optic effect and integrated with the supporting body directly or through a clad layer; a plurality of periodic domain inversion parts formed in the optical waveguide, the periodic domain inversion parts having periods different from each other; and a plurality of electrodes capable of applying voltages on the periodic domain inversion parts, respectively, to generate diffraction gratings in the periodic domain inversion parts, respectively. The clad layer is composed of a material having a refractive index lower than a refractive index of the single crystal forming the optical waveguide.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: July 12, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Jungo Kondo, Naotake Okada, Tetsuya Ejiri, Keiichiro Asai, Shoichiro Yamaguchi
  • Patent number: 11378662
    Abstract: The bi-directional optical integrated circuit device array includes a plurality of bi-directional optical integrated circuit unit devices integrated on a substrate and arranged in two-dimensions. Each of the bi-directional optical integrated circuit unit devices includes a single wavelength laser light source integrated on the substrate, a bi-directional optical device integrated on the substrate and optically connected to the laser light source, and an antenna integrated on the substrate and optically connected to the bi-directional optical device.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: July 5, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-jae Shin, Kyoung-ho Ha, Seong-gu Kim, Yong-hwack Shin, Chang-gyun Shin, Dong-sik Shim, Chang-bum Lee, Jung-ho Cha
  • Patent number: 11378666
    Abstract: A lidar system includes a light source, a scanner, and a receiver and is configured to detect remote targets located up to RMAX meters away. The receiver includes a detector with a field of view larger than the light-source field of view. The scanner causes the detector field of view to move relative to the instantaneous light-source field of view along the scan direction, so that (i) when a pulse of light is emitted, the instantaneous light-source field of view is approximately centered within the detector field of view, and (ii) when a scattered pulse of light returns from a target located RMAX meters away, the instantaneous light-source field of view is located near an edge of the field of view of the detector and is contained within the field of view of the detector.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: July 5, 2022
    Assignee: Luminar, LLC
    Inventors: Scott R. Campbell, Lane A. Martin, Matthew D. Weed, Jason M. Eichenholz
  • Patent number: 11378657
    Abstract: A time of flight sensor system having a time of flight sensor layer is disclosed. The system includes a covering window layer spaced apart from the time of flight sensor layer, with an exit window and an entrance window, an emitting element in the time of flight sensor layer that transmits an emission signal, a receiving element in the time of flight sensor layer that receives a reception signal, one or more opaque walls, and light baffles incorporated into the one or more opaque walls. The one or more opaque walls extend at least a portion of the distance from the time of flight sensor layer to the covering window layer. The one or more opaque walls reduce the reflection backscatter of emission signals and reception signals. The light baffles in the one or more opaque walls reduce backscatter of emission signals and reception signals.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: July 5, 2022
    Assignee: Datalogic IP Tech, S.r.l.
    Inventors: Marco Gnan, Paolo Quattrini
  • Patent number: 11378665
    Abstract: A distance measuring apparatus includes an image sensor and an image sensor driver. The image sensor includes a photodiode, a first capacitor and a second capacitor, and a first transfer gate and a second transfer gate configured to transmit an output of the photodiode to the respective first and second capacitors. The image sensor driver is configured to complementarily drive the first transfer gate and the second transfer gate.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: July 5, 2022
    Assignee: Korea Research Institute of Standards and Science
    Inventors: Jae-Wan Kim, Jae-Yong Lee, Jong-Ahn Kim, Jae-Heun Woo, Young Pyo Hong
  • Patent number: 11372105
    Abstract: A system including one or more waveguides to receive a first returned reflection having a first lag angle and generate a first waveguide signal, receive a second returned reflection having a second lag angle different from the first lag angle, and generate a second waveguide signal. The system includes one or more photodetectors to generate a first output signal within a first frequency range, and generate, based on the second waveguide signal and a second LO signal, a second output signal within a second frequency range. The system includes an optical frequency shifter (OFS) to shift a frequency of the second LO signal to cause the second output signal to shift from within the second frequency range to within the first frequency range to generate a shifted signal. The system includes a processor to receive the shifted signal to produce one or more points in a point set.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: June 28, 2022
    Assignee: Aeva, Inc.
    Inventors: Brian J. Roxworthy, Pradeep Srinivasan, Ashwin Samarao
  • Patent number: 11372090
    Abstract: In one embodiment, a LIDAR device of an autonomous driving vehicle (ADV) includes a light emitter to emit a light beam towards a target, wherein at least a portion of the light beam is reflected from the target. The LIDAR device further includes an optical sensing unit including a first photodetector and a second photodetector. The first photodetector is a different type of photodetector from the second photodetector, where the optical sensing unit is to receive the portion of the light beam reflected from the target. When the optical sensing unit receives the portion of the light beam, the first photodetector generates a first optical sensor output signal and the second photodetector generates a second optical sensor output signal. The LIDAR device further includes a first circuitry portion to generate an intensity signal indicative of an intensity of the received portion of the light beam responsive to the first optical sensor output signal.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: June 28, 2022
    Assignee: BAIDU USA LLC
    Inventors: Tianjia Sun, Yaoming Shen, Xiangfei Zhou, Yang Han
  • Patent number: 11366205
    Abstract: A selection circuit selects one of digital values respectively output from a TDC 1 and a TDC 2. A histogram generation circuit generates a histogram indicating a relationship between a bin number and a frequency by counting up the frequency of the bin number according to the digital value selected by the selection circuit.
    Type: Grant
    Filed: September 29, 2018
    Date of Patent: June 21, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiki Ikuta, Takuma Hiramatsu, Takayuki Shimizu, Hideki Sato
  • Patent number: 11360218
    Abstract: A lidar system includes a laser-source configured to emit laser-beams, and a single movable-mirror positioned to reflect the laser-beams from the laser-source. The movable-mirror is operable to pivot about a single rotation-axis. The system includes a first-optical wedge configured to direct at least a first-laser-beam reflected by the movable-mirror in a first-direction with respect to a bore-axis of the system, and a second-optical-wedge configured to direct at least a second-laser-beam reflected by the movable-mirror in a second-direction with respect to the bore-axis, where the second-direction is different from the first-direction. The system also includes a first-shutter interposed between the first-optical-wedge and the movable-mirror, and a second-shutter interposed between the second-optical-wedge and the movable-mirror.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 14, 2022
    Assignee: Aptiv Technologies Limited
    Inventor: Yew Kwang Low
  • Patent number: 11360194
    Abstract: An optical device for detecting a light beam reflected by a remote target comprises a light source, which is designed to emit the light beam in a predetermined direction at the remote target, and a primary lens, which is designed to focus the light beam reflected by the remote target into a first focal point. The optical device further comprises a relay lens system, which is arranged in such a way that the first focal point is located between the primary lens and the relay lens system and which is designed to focus the light beam reflected by the remote target and diverging starting from the first onto a second focal point. A detector unit is essentially arranged in the second focal point. A diaphragm is arranged within a cross-section, which is normal to the optical axis, of the light beam reflected by the remote target between the first focal point and the relay lens system.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: June 14, 2022
    Assignee: RIEGL LASER MEASUREMENT SYSTEMS GMBH
    Inventors: Andreas Ullrich, Rainer Reichert, Andreas Hofbauer
  • Patent number: 11353559
    Abstract: In one embodiment, a lidar system includes a light source configured to emit pulses of light and a scanner configured to scan at least a portion of the emitted pulses of light along a scan pattern contained within an adjustable field of regard. The scanner includes a first scanning mirror configured to scan the portion of the emitted pulses of light substantially parallel to a first scan axis to produce multiple scan lines of the scan pattern, where each scan line is oriented substantially parallel to the first scan axis. The scanner also includes a second scanning mirror configured to distribute the scan lines along a second scan axis that is substantially orthogonal to the first scan axis, where the scan lines are distributed within the adjustable field of regard according to an adjustable second-axis scan profile.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: June 7, 2022
    Assignee: Luminar, LLC
    Inventors: Scott R. Campbell, Matthew D. Weed, Lane A. Martin, Jason M. Eichenholz, Austin K. Russell