Patents Examined by Thanh Luu
  • Patent number: 11512985
    Abstract: A timing apparatus, system, and method are provided to determine a position of a rotating object in a device, such as an engine, and control the device according to the determined position of the rotating object. Light is emitted from a light source onto a reflecting region on a portion of the rotating object. Light is reflected off the reflecting region of the rotating object and detected as the rotating object rotates. Intensity of the reflected light is measured, via a microcontroller, and the position of the rotating object is determined according to the intensity of the detected light. A signal is generated that corresponds to the intensity of the detected light associated with the determined position of the rotating shaft. The reflecting region has a feature configured to effect a change in the intensity of the reflected light as the rotating object rotates.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: November 29, 2022
    Assignee: PHAEDRUS, LLC
    Inventors: Bradley W. Engstrand, Are Torr Engstrand
  • Patent number: 11509322
    Abstract: A light sensor circuit, which comprising a photodiode and a voltage follower. By setting the voltage follower to reduce the influence from the junction capacitance of the photodiode, a required time of a repeat integration module will not be influenced by the photodiode to efficiently keep the performance and the accuracy of the analog to digital converting device when the light sensor circuit is used to the analog to digital converting device in repeat operation.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: November 22, 2022
    Assignee: Sensortek Technology Corp.
    Inventors: Jer-Hau Hsu, Ming-Huang Liu, Kian-Fu Wong
  • Patent number: 11508764
    Abstract: An imaging device incudes a pixel array including pixels arranged in columns and rows, one of the columns including a first pixel in a first row and a second pixel in a second row; a first signal line, to which the first pixel is coupled, and a second signal line, to which the second pixel is coupled, extending in a column direction of the pixels; and a first shield line, to which the first pixel is coupled, extending in the column direction. The first signal line, the first shield line, and the second signal line are arranged along a row direction of the pixels in that order.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: November 22, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Hirohisa Ohtsuki
  • Patent number: 11509886
    Abstract: A photoelectric conversion device includes a first pixel including a photoelectric converter, a first node to which charge is transferred from the photoelectric converter, and a first transistor that resets a voltage of the first node, and configured to output a first signal in accordance with a voltage of the first node, a second pixel including a second node to which a predetermined voltage is supplied and a second transistor that resets a voltage of the second node, and configured to output a second signal in accordance with a voltage of the second node; and a control line connected to the first transistor and the second transistor. The first transistor resets the first node to a first voltage, and the second transistor resets the second node to a second voltage having a smaller amplitude than the first voltage.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: November 22, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yoichiro Handa, Yoichi Wada
  • Patent number: 11508769
    Abstract: An image sensing device is disclosed. The image sensing device includes a semiconductor substrate, a plurality of signal detectors, an insulation layer, and at least one gate. The semiconductor substrate includes a first surface and a second surface opposite to the first surface, and generates signal carriers in response to light incident upon the first surface. The signal detectors are formed on the semiconductor substrate and located closer to the second surface than the first surface of the semiconductor substrate, and detect the signal carriers using a difference in electric potential. The insulation layer is disposed at the second surface of the semiconductor substrate, and isolates the signal detectors from each other. The at least one gate is disposed at the insulation layer interposed between the signal detectors, and reflects light arriving at the second surface of the semiconductor substrate back to the semiconductor substrate.
    Type: Grant
    Filed: April 27, 2020
    Date of Patent: November 22, 2022
    Assignee: SK hynix Inc.
    Inventors: Ho Young Kwak, Hyung June Yoon, Jong Eun Kim
  • Patent number: 11506765
    Abstract: A Light Detection And Ranging (LIDAR) measurement circuit includes a control circuit configured to receive respective detection signals output from one or more single-photon detectors in response to a plurality of photons incident thereon. The control circuit includes a photon counter circuit including a digital counter circuit and an analog counter circuit, the digital counter circuit being responsive to an output of the analog counter circuit or the analog counter circuit being responsive to an output of the digital counter circuit to count detection of respective photons of the plurality of photons based on the respective detection signals, and a time integration circuit configured to output a time integration signal representative of respective times of arrival indicated by the respective detection signals.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: November 22, 2022
    Inventors: Neil Calder, Tarek Al Abbas, Hod Finkelstein
  • Patent number: 11506520
    Abstract: An energetic material device is disclosed. The energetic material device can include a casing. The energetic material device can also include an energetic material in a solid state within the casing. In addition, the energetic material device can include an optical sensor encased within the energetic material to sense a condition of the energetic material. An energetic material monitoring system is also disclosed. The energetic material monitoring system can include an energetic material device. The energetic material device can include a casing. The energetic material device can also include an energetic material in a solid state within the casing. In addition, the energetic material device can include an optical sensor encased within the energetic material. The energetic material monitoring system can also include an interrogator in communication with the optical sensor via an optical fiber.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: November 22, 2022
    Assignee: Raytheon Company
    Inventor: Sami Daoud
  • Patent number: 11500098
    Abstract: A Time-of-Flight (ToF) ranging device and a ToF ranging method are provided. The ToF ranging device includes a signal processor, a light emitter, and a light sensor. The light emitter sequentially emits a plurality of intense pulsed lights to a sensing target. The light sensor sequentially receives the plurality of intense pulsed lights reflected by the sensing target to correspondingly output a plurality of pixel voltage signals. The signal processor generates a plurality of read-out voltage signals according to the plurality of pixel voltage signals. The signal processor compares the plurality of read-out voltage signals with a plurality of count signals to obtain a plurality of count values. The signal processor calculates an average value of the plurality of count values and determines a distance between the ToF ranging device and the sensing target according to the average value.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: November 15, 2022
    Assignee: GenOptics Precision Biotechnologies Inc.
    Inventor: Teng-Chien Yu
  • Patent number: 11489310
    Abstract: A system and method for measuring optical power is described. The optical system and method may include a module configured to generate a secondly modulated signal based on secondly modulating a firstly modulated signal with an amplitude modulated signal. The firstly modulated signal may include data that is modulated for transmission by a laser diode array. The firstly modulated signal may then be secondly modulated using amplitude modulation techniques. The system may further include a photodiode configured to generate a photodiode current based on optically sensing a laser diode array. The laser diode array outputs an optical output power based on being driven by the secondly modulated signal. The system may yet further include a controller configured to calculate the optical output power from the photodiode current based on the amplitude modulated signal.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: November 1, 2022
    Assignee: II-VI DELAWARE, INC.
    Inventor: Hongdang He
  • Patent number: 11486760
    Abstract: A receiving circuit includes a first input terminal and a second input terminal, an input circuit that includes a first node, a second node, a first inductor, a second inductor, a first variable resistive element, and a second variable resistive element. The first variable resistive element is electrically connected between the first node and the second input terminal, and the second variable resistive element is electrically connected between the second node and the first input terminal. The receiving circuit further includes a differential amplifier configured to generate a differential voltage signal in accordance with a differential current signal. The receiving circuit still further includes a control circuit configured to perform detection of an amplitude of the differential voltage signal and change a resistance value of the first variable resistive element and a resistance value of the second variable resistive element based on a result of the detection.
    Type: Grant
    Filed: August 18, 2021
    Date of Patent: November 1, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Seiji Kumagai, Yoshiyuki Sugimoto, Keiji Tanaka
  • Patent number: 11480464
    Abstract: Provided is an optical sensor including: a first photodetector including a first photodiode and having a first wavelength sensitivity characteristic; a first resistor having one end connected to a cathode of the first photodiode, and another end connected to a ground point; a second photodetector including a second photodiode and having a second wavelength sensitivity characteristic; a second resistor having one end connected to a cathode of the second photodiode, and another end connected to the ground point; and an amplifier circuit having a first input terminal connected to the first photodiode, a second input terminal connected to the second photodiode, and an output terminal configured to output a potential based on a potential of the first input terminal and a potential of the second input terminal, and using, as an operating power supply, electric power generated by electromotive force of the first photodetector and the second photodetector.
    Type: Grant
    Filed: October 28, 2020
    Date of Patent: October 25, 2022
    Assignee: ABLIC INC.
    Inventors: Fumiyasu Utsunomiya, Takakuni Douseki, Ami Tanaka
  • Patent number: 11480465
    Abstract: Disclosed herein is a quenching bias circuit device capable of operating without a time difference even in a variance in single photon avalanche diode (SPAD). The quenching bias circuit device includes: a light receiving element; a feedback current mirror circuit arranged between a supply voltage and the light receiving element and configured to induce a passive quenching operation so as to maintain a current flowing in the light receiving element to be constant; and a bias quenching circuit connected to a sensing node of the light receiving element and configured to perform an active quenching operation.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: October 25, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, SOGANG UNIVERSITY RESEARCH & BUSINESS DEVELOPMENT FOUNDATION
    Inventors: Kyoung-Chun Kweon, Him-Chan Park, Jin-Wook Burm
  • Patent number: 11482549
    Abstract: A solid-state imaging device includes an imaging element group in which imaging elements each having a photoelectric conversion portion 10 formed on or above a semiconductor substrate 70 and further having a wire grid polarizer 91 and an on-chip microlens 15 are arrayed in a two-dimensional matrix, and a first interlayer insulating layer 83 and a second interlayer insulating layer 84 provided on a light incident side of the photoelectric conversion portions 10. The wire grid polarizer 91 is provided between the first interlayer insulating layer 83 and the second interlayer insulating layer 84, and the on-chip microlens 15 is provided on the second interlayer insulating layer 84. The first interlayer insulating layer 83 and the second interlayer insulating layer 84 include an oxide material or a resin material, and the on-chip microlens includes SiN or SiON.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: October 25, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takeshi Yanagita, Tomohiko Asatsuma
  • Patent number: 11478634
    Abstract: An optical sensor, especially an artificial retina, that includes at least one photosensitive cell. Each cell includes a integration capacitor, a read circuit the operation of which depends on the charge of the integration capacitor, at least one MOS transistor operating subthreshold, and the drain-source current of which influences the charge on the integration capacitor, and at least one photodiode operating in photovoltaic mode and connected to the gate of this transistor, such that the drain-source current of the MOS transistor depends on the optical power received by the photodiode.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: October 25, 2022
    Assignees: ÉCOLE CENTRALE DE LILLE, UNIVERSITÉ POLYTECHNIQUE HAUTS-DE-FRANCE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, YNCREA HAUTS DE FRANCE, UNIVERSITE DE LILLE
    Inventors: Alain Cappy, Francois Danneville, Virginie Hoel, Christophe Loyez, Ilias Sourikopoulos
  • Patent number: 11474215
    Abstract: Described is a Single-Photon Avalanche Diode (SPAD) array microchip comprising: a plurality of SPAD sensors; and a triggering circuit configured to detect and read out the triggering order of SPAD sensors over a timing interval wherein the timing interval comprises one or more frames. An event based neuromorphic SPAD array microchip is also described. The chip architecture and triggering methodology takes a local group of SPAD sensors connected in a certain way and by using simple digital circuits emulating how neurons behave, patterns within a local receptive field are identified. Only when these unique patterns or features are identified are “events” triggered for each receptive field in the order they occur, or in an asynchronous manner. Each neuromorphic circuit (or collection of silicon neurons) act over overlapping receptive fields, and are tiled across the entire visual spatial field of the SPAD array to a form a convolution layer.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: October 18, 2022
    Assignee: The Commonwealth of Australia
    Inventors: Dennis Victor Delic, Saeed Afshar
  • Patent number: 11468699
    Abstract: An electronic device has a photosensitive element, a charge storage element, and a node. The photosensitive element generates a current in response to illumination thereon. The charge storage element is coupled to the photosensitive element and is used to store charge in response to the current generated by the photosensitive element. The signal reading circuit is coupled to the photosensitive element, and the node is coupled between the photosensitive element and the charge storage element. The charge storage element and the photosensitive element are coupled in series, and the node is coupled to an end of the signal reading circuit.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: October 11, 2022
    Assignee: InnoLux Corporation
    Inventors: Tao-Sheng Chang, Hui-Ching Yang, Te-Yu Lee
  • Patent number: 11466900
    Abstract: A dual-axis hydraulic joint system includes a vertical shaft, a horizontal shaft, and a hydraulic system. The vertical shaft allows a yaw rotational motion and the horizontal shaft allows a pitch rotational motion, wherein the rotational motion of the vertical shaft and the horizontal shaft is controlled by the hydraulic system. In doing so, the hydraulic system manages a pressure value within a vertical shaft enclosure that holds the vertical shaft, and also manages a pressure value within a horizontal shaft enclosure which holds the horizontal shaft. The pressure value within the vertical shaft enclosure or the horizontal shaft enclosure is either increased or decreased to determine the rotational direction of the vertical shaft or the horizontal shaft. When used for solar panel direction control, the hydraulic system operates according to feedback received from a light-sensor unit, a first encoding unit, and a second encoding unit.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: October 11, 2022
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Jafar Albinmousa, Ammar Alzaydi, Nahar Hussain Alhajji Ahmed
  • Patent number: 11463054
    Abstract: The invention relates to a circuit containing a transimpedance amplifier for converting two input currents into two output voltages, having a first amplifier part containing a first input, to which a first input voltage is applied, and into which a first input current flows, and having a second amplifier part containing a second input, to which a second input voltage is applied and into which a second input current flows, wherein the first amplifier part and the second amplifier part are connected to a common supply voltage, the first amplifier part and the second amplifier part are connected to a common current source, the input of the first amplifier part and the input of the second amplifier part have a differing direct voltage, and the first amplifier part and the second amplifier part are designed such that an output voltage of the first amplifier part is proportional to the input current of the first amplifier part and an output voltage of the second amplifier part is proportional to an input current of
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: October 4, 2022
    Assignee: SICOYA GMBH
    Inventors: Johann Christoph Scheytt, Sergiy Gudyriev
  • Patent number: 11460559
    Abstract: A time-of-flight device comprises a pixel array including an array of pixel circuits respectively including a photodiode, a first tap, and a second tap; a first signal line coupled to the first tap; a second signal line coupled to the second tap; and processing circuitry coupled to the first signal line and the second signal line, the processing circuitry including: a first comparator configured to receive a first phase signal, to receive a reference signal having an exponential waveform, and to output a first comparison signal, a second comparator configured to receive a second phase signal, to receive the reference signal, and to output a second comparison signal, and a counter configured to perform a count based on the first comparison signal and the second comparison signal.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: October 4, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Ariel Ben Shem
  • Patent number: 11460558
    Abstract: A method and system for detecting and ranging targets within a scene are provided. The method can include emitting an emission signal onto the scene and receiving a return signal including echoes produced by reflection of the emission signal from the targets. The method can also include digitizing the return signal into a digital signal waveform including N real-valued samples representing the return signal at N sequential sampling times. The method can further include creating, from the digital signal waveform, an N×N second-order signal matrix having a main diagonal whose nth element is expressed in terms of the square of the nth sample of the digital signal waveform. The method can also include deriving, based on the signal matrix, time-of-flight information associated with the echoes and indicative of range information associated with the targets. The method and system can be used, for example, in lidar-based remote sensing applications.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: October 4, 2022
    Inventors: Simon East-Lavoie, Dominique Grenier