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141 US2020182612A1
Range Finder
Publication/Patent Number: US2020182612A1 Publication Date: 2020-06-11 Application Number: 16/684,628 Filing Date: 2019-11-15 Inventor: Lu, Xin-xin   Liu, Hua-tang   Luo, Sheng   Lu, Han   Song, Peng-fei   Assignee: Sintai Optical (Shenzhen) Co., Ltd.   Asia Optical Co., Inc.   IPC: G01C3/08 Abstract: A range finder includes an image capturing module, a transceiver module, a switching module, an output device and a processing unit. The image capturing module is configured to receive a first light beam emitted by an object. The transceiver module is configured to emit a second light beam to the object and receive the second light beam reflected by the object for obtaining a distance between the range finder and the object. The switching module is configured to output an electrical signal corresponding to a selected operating mode selected from a plurality of operating modes. The output device is configured to show the selected operating mode corresponding to the electrical signal. The processing unit is connected to the image capturing module, the transceiver module and the output device for receiving the electrical signal and controlling the image capturing module, the transceiver module and the output device.
142 US2020114607A1
Publication/Patent Number: US2020114607A1 Publication Date: 2020-04-16 Application Number: 16/156,257 Filing Date: 2018-10-10 Inventor: Pillarisetty, Vivek   Tate, Mark   Culvey, Zach   Assignee: Industrial Pharmaceutical Resources, Inc.   IPC: B30B11/02 Abstract: A tooling inspection and analysis system measures tooling quality of a multi-tip tablet punch having a barrel with a plurality of tips each having a tip cup for forming a tablet. The system comprises a base. A carriage assembly has a cavity for supporting a multi-tip tablet punch, which when in use is aligned with an X-axis. A Y-axis linear slide mounts the carriage assembly to the base for movement relative to the base along a Y-axis. A sensor is adapted to measure distance. A Z-axis linear slide mounts the sensor to the base for movement relative to the base along a Z-axis. A programmable controller is operatively connected to the Y-axis linear slide, the Z-axis linear slide and the sensor. The controller is programmed to move the carriage assembly and the sensor to automatically align the sensor to measure working length of each tip of a multi-tip tablet punch mounted in the cavity.
143 EP3649428A1
Publication/Patent Number: EP3649428A1 Publication Date: 2020-05-13 Application Number: 18827390.8 Filing Date: 2018-07-06 Inventor: Desai, Shahyaan   Lardin, Clifford A.   Adams, Scott G.   Assignee: Mezmeriz, Inc.   IPC: G01B9/02
144 US10641874B2
Sizing the field of view of a detector to improve operation of a lidar system
Publication/Patent Number: US10641874B2 Publication Date: 2020-05-05 Application Number: 15/710,744 Filing Date: 2017-09-20 Inventor: Campbell, Scott R.   Martin, Lane A.   Weed, Matthew D.   Eichenholz, Jason M.   Assignee: Luminar Technologies, Inc.   IPC: G01C3/08 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.
145 US10627517B2
Optical phased arrays
Publication/Patent Number: US10627517B2 Publication Date: 2020-04-21 Application Number: 15/279,295 Filing Date: 2016-09-28 Inventor: Yaacobi, Ami   Watts, Michael R.   Assignee: Massachusetts Institute of Technology   IPC: G01C3/08 Abstract: An optical phased array formed of a large number of nanophotonic antenna elements can be used to project complex images into the far field. These nanophotonic phased arrays, including the nanophotonic antenna elements and waveguides, can be formed on a single chip of silicon using complementary metal-oxide-semiconductor (CMOS) processes. Directional couplers evanescently couple light from the waveguides to the nanophotonic antenna elements, which emit the light as beams with phases and amplitudes selected so that the emitted beams interfere in the far field to produce the desired pattern. In some cases, each antenna in the phased array may be optically coupled to a corresponding variable delay line, such as a thermo-optically tuned waveguide or a liquid-filled cell, which can be used to vary the phase of the antenna's output (and the resulting far-field interference pattern).
146 US10656250B2
Geospatial data collection system with a look ahead sensor and associated methods
Publication/Patent Number: US10656250B2 Publication Date: 2020-05-19 Application Number: 15/726,514 Filing Date: 2017-10-06 Inventor: Wasilousky, Peter A.   Heimmermann, Dean A.   Smith, Philip   Wilson, Charles   Laprade, Kenneth   Truscott, Anthony   Nelson, Graham   Christianson, Tim   Assignee: EAGLE TECHNOLOGY, LLC   IPC: G01C3/08 Abstract: A geospatial data collection system is for an aerial vehicle and includes a data collection light detection and ranging (LiDAR) device and a protection LiDAR device. The data collection LiDAR device is configured to collect geospatial data as the aerial vehicle moves along a collection path. The protection LiDAR device is configured to sense a geospatial area ahead of the data collection LiDAR device. The data collection LiDAR device is switchable from an operating mode to a protected mode based upon the protection LiDAR device.
147 US10670702B2
Multi-channel lidar scanner optical system using mirror rotation manner
Publication/Patent Number: US10670702B2 Publication Date: 2020-06-02 Application Number: 15/569,538 Filing Date: 2015-09-03 Inventor: Choi, Hyun Yong   Choi, Choul Jun   Oh, Seung Hun   Cho, Hyun Chang   Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE   IPC: G01C3/08 Abstract: A light detection and ranging (LiDAR) optical system, according to one embodiment of the present invention, comprises: a first mirror which is disposed to make a predetermined first angle with a horizontal plane and has a first hollow; a light source for outputting a pulse laser from the lower portion of the first mirror; a second mirror which is disposed to make a predetermined second angle with the first mirror so that the pulse laser passes through the first hollow and travels to a measurement target; at least two path control mirrors which reflect the pulse laser so that the path of the pulse laser is formed on a reflective surface of the second mirror; a light receiving lens for receiving, from the lower portion of the first mirror, light which has been reflected through the first mirror.
148 US10746858B2
Calibration for an autonomous vehicle LIDAR module
Publication/Patent Number: US10746858B2 Publication Date: 2020-08-18 Application Number: 15/679,338 Filing Date: 2017-08-17 Inventor: Bradley, David Mcallister   Yang, Gehua   Assignee: UATC, LLC   IPC: G01C3/08 Abstract: A LIDAR calibration system can detect a first set of return signals from a plurality of fiducial targets in a calibration facility for a lower set of laser scanners of the LIDAR module. The LIDAR calibration system can also detect a second set of return signals from one or more planar surfaces associated with a calibration trigger location on a road network for an upper set of laser scanners of the LIDAR module. Based on the first and second sets of return signals, the LIDAR calibration system can generate a set of calibration transforms to adjust a set of intrinsic parameters of the LIDAR module.
149 US10746856B2
Light scanning type object detecting device
Publication/Patent Number: US10746856B2 Publication Date: 2020-08-18 Application Number: 15/767,702 Filing Date: 2016-10-04 Inventor: Noguchi, Kazutaka   Ishikawa, Ryouta   Matsui, Kazuki   Assignee: KONICA MINOLTA, INC.   IPC: G01C3/08 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, 0.2<h/H≤(H′−r)/H  (2)
150 US2020141730A1
Publication/Patent Number: US2020141730A1 Publication Date: 2020-05-07 Application Number: 16/626,719 Filing Date: 2018-06-25 Inventor: Kikuchi, Takeshi   Assignee: TOPCON CORPORATION   IPC: G01C15/00 Abstract: A remote operation system of a surveying instrument includes a surveying instrument including a survey unit, a control unit, a management server capable of communicating with the surveying instrument through the communication network, a remote terminal configured to command the management server to add a function of the surveying instrument through the communication network, and a billing system connected to the communication network, wherein the remote terminal commands the management server MS to consume a quantity of virtual currency corresponding to addition of the function, the management server adds the function of the surveying instrument when the quantity of virtual currency corresponding to addition of the function is consumed based on the command from the remote terminal, and the billing system executes a billing process based on billing data corresponding to the quantity of virtual currency.
151 DE102019120695A1
Publication/Patent Number: DE102019120695A1 Publication Date: 2020-02-06 Application Number: 102019120695 Filing Date: 2019-07-31 Inventor: Kubo, Koji   Shishido, Yuko   Assignee: Mitutoyo Corporation   IPC: G01C3/08 Abstract: Ein Verlagerungssensor vom Nicht-Kontakttyp beinhaltet eine Lichtquelle, welche ein Messlicht emittiert; eine Flüssiglinseneinrichtung, in welcher sich ein Brechungsindex periodisch in Antwort auf ein eingegebenes Antriebssignal ändert; eine Objektivlinse, welche zu einem messbaren Objekt das Messlicht emittiert, welches von der Lichtquelle emittiert wurde und durch die Flüssiglinseneinrichtung hindurchgetreten ist; einen Photodetektor, welcher das Messlicht empfängt, welches durch das messbare Objekt reflektiert wird, und ein Photodetektionssignal ausgibt; und einen Signalprozessor (Regel- bzw. Steuereinrichtung), welcher Brennpunkt-Zeitpunkte, bei welchen sich das Messlicht im Brennpunkt auf einer Oberfläche des messbaren Objekts befindet, basierend auf dem Photodetektionssignal berechnet, welches von dem Photodetektor ausgegeben wird, und welcher eine Position des messbaren Objekts basierend auf einer Phase des Brennpunkt-Zeitpunkts relativ zu einem Zyklus des Antriebssignals erhält.
152 US10802148B2
Device for extracting depth information and method thereof
Publication/Patent Number: US10802148B2 Publication Date: 2020-10-13 Application Number: 16/424,284 Filing Date: 2019-05-28 Inventor: Lee, Myung Wook   Jung, Sung Ki   Lee, Gi Seok   Han, Kyung Ha   Seo, Eun Sung   Lee, Se Kyu   Assignee: LG INNOTEK CO., LTD.   IPC: G01C3/08 Abstract: A device for extracting depth information according to one embodiment of the present invention comprises: a light outputting unit for outputting IR (InfraRed) light; a light inputting unit for inputting light reflected from an object after outputting from the light outputting unit; a light adjusting unit for adjusting the angle of the light so as to radiate the light into a first area including the object, and then for adjusting the angle of the light so as to radiate the light into a second area; and a controlling unit for estimating the motion of the object by using at least one of the lights between the light inputted to the first area and the light inputted to the second area.
153 US10809362B2
Detector array for a LIDAR system
Publication/Patent Number: US10809362B2 Publication Date: 2020-10-20 Application Number: 16/017,553 Filing Date: 2018-06-25 Inventor: Frederiksen, Annette   Mauch, Florian   Assignee: Robert Bosch GmbH   IPC: G01C3/08 Abstract: A detector array for detecting backscattered light of a LIDAR system includes an optical waveguide and a detector unit. The optical waveguide includes a light incoupling surface, which is formed by at least a portion of a circumferential surface of the optical waveguide for coupling-in the backscattered light of the LIDAR system, and a light outcoupling surface, which is formed by a cross-sectional surface of the optical waveguide on an axial end of the optical waveguide, and furthermore a luminescent material, which is introduced into the interior of the optical waveguide and configured to emit light re-emitted into a wavelength range of a LIDAR system due to luminescence. The detector unit is situated on the light outcoupling surface of the optical waveguide for the detection of at least a portion of the re-emitted light.
154 US2020141729A1
Target Instrument And Surveying System
Publication/Patent Number: US2020141729A1 Publication Date: 2020-05-07 Application Number: 16/558,574 Filing Date: 2019-09-03 Inventor: Nishita, Nobuyuki   Assignee: TOPCON Corporation   IPC: G01C15/00 Abstract: A surveying system comprises a laser scanner for scanning a distance measuring light and for acquiring point cloud data and a target instrument having a target for reflecting the distance measuring light, wherein the target is a sphere having a known diameter, the laser scanner comprises a distance measuring module for projecting the distance measuring light, for receiving a reflected distance measuring light and for performing a distance measurement, an optical axis deflector which enables to two-dimensionally deflect the distance measuring light, and an arithmetic control module for controlling the optical axis deflector, and wherein the arithmetic control module is configured to perform a circular scan on a surface of the target by the optical axis deflector, to obtain a center of the target based on the point cloud data acquired by the circular scan and the diameter, and to measure a distance of the center of the target.
155 US10627519B2
Information processing device and information processing method
Publication/Patent Number: US10627519B2 Publication Date: 2020-04-21 Application Number: 15/329,320 Filing Date: 2015-08-03 Inventor: Iwasaki, Masanori   Assignee: SONY CORPORATION   IPC: G01C3/08 Abstract: An information processing device according to one aspect of the present disclosure is provided with an obtaining unit which obtains a speckle image obtained by imaging an interference state of reflection light of light obtained when irradiating an object with coherent light, a distance measuring unit which measures a distance to the object, a measuring unit which measures a movement amount of the obtained speckle image, and an arithmetic unit which performs an arithmetic operation of relative displacement amounts of surfaces of a plurality of objects on the basis of movement amounts of speckle images corresponding to the plurality of objects at different distances from an object plane on which the speckle image appears and measured distances to the objects. The present disclosure is applicable to an audio detecting system, for example.
156 US10627493B2
Apparatus, method for laser distance measurement, and non-transitory computer-readable storage medium
Publication/Patent Number: US10627493B2 Publication Date: 2020-04-21 Application Number: 15/357,248 Filing Date: 2016-11-21 Inventor: Morikawa, Takeshi   Tezuka, Koichi   Iida, Koichi   Assignee: FUJITSU LIMITED   IPC: G01C3/08 Abstract: An apparatus for laser distance measurement includes: a light-projecting circuit for projecting laser light emitted from a laser diode; a filter for transmitting a specific wavelength and suppressing a wavelength other than the specific wavelength; a photodetector including a plurality of photodetector elements, and configured to receive the laser light projected from the light-projecting circuit and reflected from a measurement object through the filter; and a controller for controlling a relative incidence angle of the reflected laser light with respect to the filter, wherein the controller causes a photodetector signal, which is to be used for calculating a distance to the measurement object, to be outputted from a photodetector element of the photodetector at a position to which a shift of a light-condensing position of the reflected laser light occurs as a result of the control of the relative incidence angle from the light-condensing position before the control.
157 US10748299B2
System and method of multirotor dynamics based online scale estimation for monocular vision
Publication/Patent Number: US10748299B2 Publication Date: 2020-08-18 Application Number: 16/580,403 Filing Date: 2019-09-24 Inventor: Ludhiyani, Mohit   Rustagi, Vishvendra   Sinha, Arnab   Dasgupta, Ranjan   Assignee: Tata Consultancy Services Limited   IPC: G06T7/20 Abstract: Robotic vision-based framework wherein an on-board camera device is used for scale estimation. Unlike conventional scale estimation methods that require inputs from more than one or more sensors, implementations include a system and method to estimate scale online solely, without any other sensor, for monocular SLAM by using multirotor dynamics model in an extended Kalman filter framework. This approach improves over convention scale estimation methods which require information from some other sensors or knowledge of physical dimension of an object within the camera view. An arbitrary scaled position and an Euler angle of a multirotor are estimated from vision SLAM (simultaneous localization and mapping) technique. Further, dynamically integrating, computed acceleration to estimate a metric position. A scale factor and a parameter associated with the multirotor dynamics model is obtained by comparing the estimated metric position with the estimated arbitrary position.
158 US2020227457A1
Publication/Patent Number: US2020227457A1 Publication Date: 2020-07-16 Application Number: 16/834,735 Filing Date: 2020-03-30 Inventor: Sekine, Hiroshi   Onuki, Yusuke   Kawabata, Kazunari   Assignee: CANON KABUSHIKI KAISHA   IPC: H01L27/146 Abstract: In an imaging device, a photoelectric converter of a first pixel and a photoelectric converter of a second pixel are arranged along a first direction. At least part of a charge accumulation portion of the first pixel is disposed between the photoelectric converter of the first pixel and the photoelectric converter of the second pixel. An exit surface of a light guiding path of the first pixel is longer in a second direction orthogonal to the first direction in plan view than in the first direction.
159 US2020240781A1
Publication/Patent Number: US2020240781A1 Publication Date: 2020-07-30 Application Number: 16/262,440 Filing Date: 2019-01-30 Inventor: Ortiz, Egea Sergio   Lin, Hung-ming   Assignee: Microsoft Technology Licensing, LLC   IPC: G01C3/08 Abstract: A time-of-flight (ToF) system disclosed herein provides a method of a method of separating a direct component of light collected by a time of flight (ToF) detector from a global component of light collected by the ToF detector, the method comprising acquiring three or more images represented by three or more matrices in response to illuminating a target with a light source using a first spatial pattern at three or more different modulation frequencies, acquiring an additional image represented by an additional matrix in response to illuminating the target with the light source using a second spatial pattern, the second spatial pattern being different than the first spatial pattern, and determining one or more parameters of the direct component of light and the global component of light based on analysis of the three or more matrices and the additional matrix.
160 EP3258443B1
Publication/Patent Number: EP3258443B1 Publication Date: 2020-03-25 Application Number: 17158231.5 Filing Date: 2017-02-27 Inventor: Takatani, Tsuyoshi   Tasaki, Tsuyoshi   Assignee: Kabushiki Kaisha Toshiba   IPC: G06T7/246