Patents Examined by Don J Williams
  • Patent number: 11415697
    Abstract: A measured photo-event array is converted from two spatial coordinates and one temporal coordinate into three spatial coordinates for real-time imaging. Laser light pulses illuminate at least one object, and a Geiger-mode avalanche photodiode array receives photons from laser light reflected off the object. For each pulse of the laser light, the GMAPD outputs a first array of photo-events representative of reflected photons. A three-dimensional (3D) Gaussian distribution kernel arranged as a list of array locations to be processed and weight list(s) are provided. The weight list(s) specify an amount array values are scaled based on the Gaussian distribution or photon arrival time. A graphics processing unit arranges the first array of measured photo-events as a list, convolves the Gaussian displacement list with the list of measured photo-events to produce a convolution output, and applies weights from the weight list(s) to the values to produce a density point cloud.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: August 16, 2022
    Assignee: Raytheon Company
    Inventors: Arthur M. Newman, Eran Marcus, Brian Boland
  • Patent number: 11405006
    Abstract: An amplifying circuit, which can operate in one of a sample mode and a hold mode, comprising: an amplifier; a current providing circuit, configured to provide a first bias current to the amplifier in a power saving time interval when the amplifying circuit operates in the sample mode, and configured to provide a second bias current to the amplifier when the amplifying circuit operates in the hold mode; wherein the first bias current is smaller than the second bias current.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: August 2, 2022
    Assignee: PixArt Imaging Inc.
    Inventors: Poh Weng Yem, Keng Yeam Chang
  • Patent number: 11395382
    Abstract: A method for parameterizing a machine-vision device. The method incudes the e following successive steps: a) selecting, depending on the zone of interest, a slaved lighting configuration, and recording the slaved lighting configuration in the control interface and/or applying the slaved lighting configuration; b) independently of step a), selecting an origin lighting configuration, and applying the origin lighting configuration; c) establishing an informational relationship between said origin and slaved lighting configurations and recording said relationship in the control interface so that the electronic unit commands the zone of interest to be lit in the slaved lighting configuration in response to an origin lighting configuration.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: July 19, 2022
    Assignee: TPL VISION UK LTD
    Inventors: Guillaume Mazeaud, Jack McKinley, NEdko Gatev
  • Patent number: 11391627
    Abstract: A first photodiode is integrated within at least a first layer of one or more semiconductor layers, the first photodiode comprising an active area optically coupled to a guided mode of a first waveguide to couple the first photodiode to an optical distribution network. One or more associated photodiodes are associated with the first photodiode integrated within at least the first layer in proximity to the first photodiode. An active area of a single associated photodiode or a sum of active areas of multiple associated photodiodes is substantially equal to the active area of the first photodiode. None of the associated photodiodes is coupled to the optical distribution network. Electrical circuitry is configured to generate a signal that represents a difference between (1) a signal derived from the first photodiode and (2) a signal derived from a single associated photodiode or a sum of signals derived from multiple associated photodiodes.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: July 19, 2022
    Assignee: Ciena Corporation
    Inventors: Michael Vitic, Sean Sebastian O'Keefe, Christine Latrasse
  • Patent number: 11392805
    Abstract: A potentially small, gimballed, multi-sensor system employs a shared aperture for at least some of the image sensors. Applications include intelligence, surveillance, target acquisition and reconnaissance (ISTAR), and guiding autonomous vehicles. The system can actively blend images from multiple spectral bands for clarity and interpretability, provide remote identification of objects and material, provide anomaly detection, control lasers and opto-mechanics for image quality, and use shared aperture using folded optics.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: July 19, 2022
    Inventors: Matthew A. Sinclair, Adam Kelsey, Paul Aaron Bohn, Stephanie L. Golmon, Francis J. Rogomentich, Juha-Pekka Laine, Buddy A. Clemmer, David A. Landis
  • Patent number: 11371881
    Abstract: A photoelectric detection circuit, a photoelectric detection device and an electronic device. The photoelectric detection circuit includes a first detection sub-circuit configured to be exposed to the environment of light to be detected and having an equivalent resistance that varies with the variation of illumination intensity of the light to be detected in the environment; and a second detection sub-circuit configured to be in a state of fixed illumination intensity and having an equivalent resistance that is constant due to the fixed illumination intensity. The first detection sub-circuit is connected in series with the second detection sub-circuit via a first node N1 and the signal output lead Vout is electrically connected with the first node N1 to output detected electrical signals.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: June 28, 2022
    Inventors: Chen Meng, Chuncheng Che, Wei Sun
  • Patent number: 11353393
    Abstract: An apparatus for providing an improved coupling link with integrated beam blocking and a bearing assembly using an axial preloading technique is disclosed. The apparatus may include a coupling link comprising a first end, a second end, and a middle section. The middle section may be connectable to a beam blocking element. The first end may include a first bearing assembly and may be connectable to a motor drive arm. The second end may include a second bearing assembly and may be connectable to an optical-mechanical element. In some examples, the apparatus may be used in various optical measurement and testing applications and environments. In some examples, the improved coupling link may also utilize an axial preloading technique to minimize excessive movement in bearings assemblies.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: June 7, 2022
    Inventors: Jeffery Stephen Graves, Elias Debs, Darko Cugalj, Christopher Russell Wagner, Driss Touahri
  • Patent number: 11346498
    Abstract: A component for light curtain alignment includes a light intensity receiver that receives a plurality of light intensity signals from beam receivers of a receiver unit of a light curtain. The light curtain includes a transmitter unit with beam transmitters arranged linearly on the transmitter unit. The light curtain includes the receiver unit with the plurality of beam receivers arranged linearly. Each beam receiver is configured to receive light from a corresponding beam transmitter. The component includes a light intensity transmitter configured to transmit, from the light curtain, the plurality of light intensity signals received by the light intensity receiver, where each light intensity signal is from one or more beam receivers, and a trip transmitter that transmits a trip signal in response to determining that a light intensity signal from a beam receiver of the plurality of beam receivers is below a trip threshold.
    Type: Grant
    Filed: January 27, 2021
    Date of Patent: May 31, 2022
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Suresh R. Nair, Burt Sacherski, Yongyao Cai, Lee A. Lane, Brian J. Taylor, Ashley M. Killian, Kevin Zomchek, Michelle Poublon, Linxi Gao, Timothy P. Wolfe, Rebecca R. Jaeger, Wayne R. Foster
  • Patent number: 11341880
    Abstract: Technology described herein includes a method that includes receiving, at one or more processing devices at one or more locations, one or more image frames; receiving, at the one or more processing devices, one or more signals representing outputs of one or more light sensors of a device; estimating, by the one or more processing devices based on the one or more image frames, one or more illuminance values; determining, by the one or more processing devices, that a degree of correlation between (i) a first illuminance represented by the one or more illuminance values and (ii) a second illuminance represented by the one or more signals fails to satisfy a threshold condition; and in response to determining that the degree of correlation fails to satisfy the threshold condition, determining, by the one or more processing devices, presence of an adverse condition associated with the device.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: May 24, 2022
    Assignee: EyeVerify Inc.
    Inventors: Reza R. Derakhshani, Spandana Vemulapalli, Tetyana Anisimova
  • Patent number: 11333549
    Abstract: An avalanche photodiode sensor includes a photoelectric conversion region disposed in a substrate and that converts incident light into electric charge. The avalanche photodiode sensor includes a first region of a first conductivity type on the photoelectric conversion region, and a cathode disposed in the substrate adjacent to the first region and coupled to the photoelectric conversion region. The avalanche photodiode sensor includes an anode disposed in the substrate adjacent to the cathode, and a contact of the first conductivity type disposed in the substrate. An impurity concentration of the first region is different than an impurity concentration of the contact.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: May 17, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Kyosuke Ito, Toshifumi Wakano, Yusuke Otake
  • Patent number: 11326940
    Abstract: An ambient light signal adjustment method, a chip and electronic equipment. The method includes: receiving a first ambient light signal which is an ambient light signal acquired by a photo plethysmor graph (PPG) sensor; then determining, according to an intensity of the first ambient light signal automatically, whether to turn on an ambient light cancellation circuit which is configured to adjust the first ambient light signal according to the intensity of the first ambient light signal; and if it is determined to turn on the ambient light cancellation circuit, then adjusting a cancellation signal intensity of the ambient light cancellation circuit automatically to enable an intensity of the adjusted first ambient light signal to be within a preset range. Adjustment of the ambient light signal acquired by the PPG sensor is realized, thereby ensuring accuracy of a wearable device to detect a physiological characteristic of a user.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: May 10, 2022
    Assignee: Shenzhen Goodix Technology Co., Ltd.
    Inventor: Chang Liu
  • Patent number: 11329096
    Abstract: A fingerprint sensing module including an image sensor, a microlens array and a light-shielding layer is provided. The image sensor has multiple pixels. Each of the pixels has multiple light-sensing regions physically separated. Each of the light-sensing regions is adapted to receive an image beam coming from a fingerprint of user. The microlens array is disposed above the image sensor. The microlens array includes multiple microlens. A focus region of each of the microlens covers a portion of the light-sensing regions. The light-shielding layer is disposed between the image sensor and the microlens array. The light-shielding layer has multiple openings, and the positions of the openings are corresponded to the positions of the pixels.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: May 10, 2022
    Assignee: Egis Technology Inc.
    Inventors: Tzu-Yang Peng, Ming-Yuan Cheng, Chung-Yi Wang, Yu-Hsuan Lin
  • Patent number: 11307087
    Abstract: The present disclosure is directed to optoelectronic modules with substantially temperature-independent performance characteristics and host devices into which such optoelectronic modules can be integrated. In some instances, an optoelectronic module can collect proximity data using light-generating components and light-sensitive components that exhibit temperature-dependent performance characteristics. The light-generating components and light-sensitive components can be configured such that they exhibit complementing temperature-dependent performance characteristics such that the operating performance of the optoelectronic module is substantially temperature independent.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: April 19, 2022
    Assignee: ams Sensors Singapore Pte. Ltd.
    Inventor: Jens Geiger
  • Patent number: 11302725
    Abstract: An image sensor for securing an area of a photodiode includes a pixel area and a transistor area adjacent to the pixel area. The pixel area may include a photodiode and a floating diffusion area. The transistor area may include transistors extending along an edge of the pixel area. The transistors in the transistor area may include a reset transistor, one or more source follower transistors, and one or more selection transistors, and the reset transistor and one source follower transistor adjacent to the reset transistor may share a common drain area. The source follower transistors and the selection transistors may each share a common source area or a common drain area between two adjacent transistors thereof.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: April 12, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jonghyun Go, Jae-Kyu Lee
  • Patent number: 11300800
    Abstract: A pseudo speckle pattern generation apparatus includes a first spatial light modulator, a first lens, a second spatial light modulator, a second lens and the like. The first spatial light modulator has a first intensity modulation distribution based on a pseudo random number pattern, and spatially modulates intensity of light output from a light source and increased in beam diameter by a beam expander. The second spatial light modulator has a second intensity modulation distribution based on a filter function, is provided on a plane where a Fourier transformed pattern is generated by the first lens, and spatially modulates intensity of the light reached through the first lens. The second lens optically Fourier transforms a pattern of the light output from the second spatial light modulator to generate a Fourier transformed pattern as a pseudo speckle pattern.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: April 12, 2022
    Inventors: Hiroto Sakai, Taro Ando, Haruyoshi Toyoda, Yoshiyuki Ohtake, Yuu Takiguchi, Tomoko Hyodo
  • Patent number: 11300449
    Abstract: An image capturing device (202) can include a sensor array (210), a lens (230) positioned at a first distance from an intermediate image (235), and apolychromat (220) positioned at a second distance from the lens (230). The polychromat (220) can diffract the intermediate image (235) according to a transform function (207) to produce a dispersed sensor image (215) onto the sensor array (210). The dispersed sensor image (215) can represent a spatial code of the intermediate image (235).
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: April 12, 2022
    Assignee: University of Utah Research Foundation
    Inventors: Rajesh Menon, Peng Wang
  • Patent number: 11300326
    Abstract: A solar tracker system comprising a plurality of on sun trackers and a plurality of off sun tracker. Each tracker is selectively adjusted to achieve a desired power output of the solar power plant system in an example.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: April 12, 2022
    Assignee: NEXTRACKER INC.
    Inventors: Yu Dong Ma, Yang Liu, Francesco Borrelli, Allan Daly, Ricardo Delgado-Nanez, Alexander W. Au
  • Patent number: 11293799
    Abstract: A sensing device includes an aperture structure having an aperture and imaging optics configured to direct polychromatic light toward the aperture. The imaging optics separates the light according to spectral range longitudinally along a first axis The aperture substantially transmits a spectral range of the light and substantially blocks other spectral ranges of the light. An optical detector is arranged to receive the spectral range of the light that is transmitted through the aperture. The optical detector generate an electrical output that corresponds to a centroid of the spectral range of the light.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: April 5, 2022
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Peter Kiesel, Philipp Schmaelzle, Konrad Bellmann, Markus Beck
  • Patent number: 11287625
    Abstract: To acquire an image of a sample. A microscope includes: an illumination optical system that includes a light flux splitter that splits light from a light source into a plurality of light fluxes, and scans a sample in a plurality of directions with interference fringes generated by interference of at least part of the light fluxes split by the light flux splitter; a detection optical system on which light from the sample is incident; a detection device that includes a plurality of detectors that detect the light from the sample via the detection optical system; and an image processor that generates an image using detection results of two or more of the detectors of the detection device.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: March 29, 2022
    Inventors: Yosuke Fujikake, Yuki Terui
  • Patent number: 11282891
    Abstract: A CMOS imaging system with increased charge storage of pixels yet decreased physical size, kTC noise and active area. A storage node is connected to the transfer gate and provides a storage node for a pixel, allowing for kTC noise reduction prior to readout. The pixel may be operated with the shutter gate on during the integration period to increase the amount of time for charge storage by a pixel.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: March 22, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Peter P. Altice, Jr., Jeffery A. McKee