Patents Examined by Thanh A. Luu
  • Patent number: 11187559
    Abstract: A code disk is adapted to an optical absolute rotary encoder. The code disk is divided into a plurality of columns, with the plurality of columns disposed in a circumferential direction around a center position and respectively extending in a plurality of radial directions. The code disk comprises a plurality of disk sectors sequentially disposed in the circumferential direction around the center position, wherein each of the disk sectors comprises a plurality of code pieces, each of the code pieces comprises an encoded value, each of the encoded values comprises a plurality of bits adopting Manchester code, these bits are arranged in one of the radial directions, and the encoded values of two of the disk sectors are arranged as Gray code.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: November 30, 2021
    Inventors: Ming-Chieh Chou, Kuo-Chih Wang, Chi-Hung Lee, Yi-Cheng Chen
  • Patent number: 11190722
    Abstract: An image sensor, a signal acquisition method and a signal acquisition circuit of the image sensor, a storage medium and a terminal are provided. The image sensor includes a plurality of pixel modules, and each pixel module includes: n pixel units connected in series to form a closed-loop structure, wherein n?3, each pixel unit has a first terminal and a second terminal, and each pixel unit includes a photosensitive element and a pixel switch connected in series; and n signal readout terminals, wherein each serial connection point between one pixel unit and the other pixel units is connected with a corresponding signal readout terminal; wherein two adjacent pixel modules share a same pixel unit and signal readout terminals connected with the first terminal and the second terminal of the same pixel unit.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: November 30, 2021
    Assignee: Shanghai Harvest Intelligence Technology Co., Ltd.
    Inventors: Ya-Hsiang Tai, Ping-Ju Huang
  • Patent number: 11179029
    Abstract: Embodiments of a hybrid imaging sensor that optimizes a pixel array area on a substrate using a stacking scheme for placement of related circuitry with minimal vertical interconnects between stacked substrates and associated features are disclosed. Embodiments of maximized pixel array size/die size (area optimization) are disclosed, and an optimized imaging sensor providing improved image quality, improved functionality, and improved form factors for specific applications common to the industry of digital imaging are also disclosed. Embodiments of the above may include systems, methods and processes for staggering ADC or column circuit bumps in a column or sub-column hybrid image sensor using vertical interconnects are also disclosed.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: November 23, 2021
    Assignee: DePuy Synthes Products, Inc.
    Inventor: Laurent Blanquart
  • Patent number: 11181418
    Abstract: A avalanche diode arrangement comprises an avalanche diode (11) that is coupled to a first voltage terminal (14) and to a first node (15), a latch comparator (12) with a first input (16) coupled to the first node (15), a second input (17) for receiving a reference voltage (VREF) and an enable input (21) for receiving a comparator enable signal (CLK), and a quenching circuit (13) coupled to the first node (15).
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: November 23, 2021
    Assignee: AMS AG
    Inventors: Nenad Lilic, Robert Kappel, Georg Röhrer
  • Patent number: 11177409
    Abstract: A photon detection device and method of fabricating a photon detection device are provided. The photon detection device comprises a first input terminal for receiving a DC input voltage, a second input terminal for receiving an AC input voltage and a bias tee connected to the first and second input terminals and configured to combine the AC and DC input voltages to form a combined voltage on an output of the bias tee. A first single photon detector is connected to the output of the bias tee and configured to receive the combined voltage from the bias tee, register a detection signal based on only a single photon being incident on the first single photon detector and output the detection signal indicative of the detected photon. A first output terminal is connected to an output of the first single photon detector for outputting the detection signal. The photon detection device is formed in a single integrated circuit.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: November 16, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Zakaria Moktadir, Andrew Sharpe, Andrew James Shields
  • Patent number: 11175387
    Abstract: An optical sensor configured to reduce a measurement time while the accuracy of the optical sensor is maintained is realized. An initial configuration circuit (19) includes a counter configured to perform counting of the number of pulse outputs from a first light-receiving unit (11) in first to nth regions obtained by dividing each cycle of a reference clock into n equal parts, determines, among the first to nth regions, a region in which a counter value is largest, and the initial configuration circuit causes a first DLL circuit (17) to perform a converging operation to the region determined.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: November 16, 2021
    Inventors: Hideki Sato, Yoshiki Ikuta, Takayuki Shimizu, Takuma Hiramatsu
  • Patent number: 11175179
    Abstract: A calibration circuit configured to calibrate a signal of a sensing unit comprises: an amplifier, a first impedance element and a second impedance element. The amplifier has a first input terminal, a second input terminal and an output terminal. The first input terminal is coupled to a first terminal of the sensing unit, the second input terminal is coupled to a reference voltage, and the output terminal is feedback to the first input terminal and outputs the readout signal. A first terminal of the first impedance element is coupled to the first input terminal of the amplifier, and a second terminal of the first impedance element is coupled to a calibration voltage. A first terminal of the second impedance element is coupled to the first terminal of the first impedance element, and a second terminal of the second impedance element is coupled to the output terminal of the amplifier.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: November 16, 2021
    Assignee: Egis Technology Inc.
    Inventors: Chung-Yi Wang, Yu-Hsuan Lin
  • Patent number: 11175389
    Abstract: An optical sensor device configured to detect a time of flight of an electromagnetic signal includes a semiconductor substrate having a main surface and a conversion region configured to convert at least a fraction of the electromagnetic signal into photo-generated charge carriers; a first control electrode formed in a trench extending from the main surface into the semiconductor substrate; a second control electrode disposed directly or indirectly on the main surface; a control circuit configured to apply a varying first potential to the first control electrode and to apply a varying second potential to the second control electrode, where the varying second potential has a fixed phase relationship to the first varying potential, to generate electric potential distributions in the conversion region to direct the photo-generated charge carriers; and a readout node arranged in the semiconductor substrate and configured to detect the directed photo-generated charge carriers.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: November 16, 2021
    Inventors: Stefano Parascandola, Henning Feick, Matthias Franke, Dirk Offenberg, Jens Prima, Robert Roessler, Michael Sommer
  • Patent number: 11171174
    Abstract: A device for multispectral imaging in the infrared, suitable for detecting at at least one first and one second detection wavelength is provided. It comprises a detection matrix array comprising a set of elementary detectors of preset dimensions forming an image field of given dimensions; and an image-forming optic having a given aperture number (N) and a given focal length (F), which aperture number and focal length are suitable for forming, at any point of the image field, an elementary focal spot covering a set of at least two juxtaposed elementary detectors.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: November 9, 2021
    Inventors: Antoine Bierret, Grégory Vincent, Riad Haidar, Fabrice Pardo, Jean-Luc Pelouard
  • Patent number: 11165981
    Abstract: A circuit for correlated double sampling is disclosed. In one aspect, the circuit comprises a reset switch connected with an input node, and with a first node of a first capacitor; a sampling switch connected with the input node, and with a first node of a second capacitor; a second node of the first/second capacitor is adapted to be connected with a first/second reference node, of which at least one using a reference switch; a first switch connected between the second node of the first capacitor and the first node of the second capacitor; a second switch connected between the first node of the first capacitor and the second node of the second capacitor.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: November 2, 2021
    Assignee: IMEC vzw
    Inventor: Linkun Wu
  • Patent number: 11162838
    Abstract: The present invention allows a user to easily grasp which light receiving section is in what light reception state. The multiple-optical-axis photoelectric sensor (10) includes: a plurality of light receiving sections (110); a display section (120) which is provided in the vicinity of a corresponding light receiving section among the plurality of light receiving sections (110), the display section (120) displaying a light reception state of the corresponding light receiving section; and a display control section (103) which causes the display section (220) and the display section (120) to simultaneously display the light reception state.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: November 2, 2021
    Assignee: OMRON Corporation
    Inventors: Yasuchika Konishi, Keisaku Kikuchi, Yuya Yamada, Satoshi Nishiuchi
  • Patent number: 11163090
    Abstract: A coaxial photoelectric sensor may include both an optical emitter and optical receiver disposed on a printed circuit board. A total internal reflection optical component may be optically aligned with the optical emitter so as to reflect an illumination signal generated by the emitter. A reflective optical component may be optically aligned with the total internal reflection optical component so as reflect the illumination signal received from the total internal reflection optical component. A target reflector component may be optically aligned with the reflective optical component to coaxially reflect the illumination signal received from the reflective optical component. An optical detector may be configured to generate an electrical signal in response to receiving the illumination signal.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: November 2, 2021
    Assignee: Datalogic IP Tech S.R.L.
    Inventors: Gianluca Sirigu, Andrea Di Chele, Giacomo Rigoni
  • Patent number: 11159127
    Abstract: A thermal and environmental noise suppressing interface circuit which is configured to operate cold and is configured to perform biasing with suppression of noise currents from room temperature noise voltages and dc coupled rf readout of a superconducting device under test with a single coaxial cable or equivalent conductor pair. The circuit is configured to suppress the propagation of thermal and environmental noises to/from sensors operating at a different temperature from its operating and control equipment while maintaining a single input-output channel, and provides for the placement of a local grounding impedance on an intercept board.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: October 26, 2021
    Assignee: QUANTUM OPUS, LLC
    Inventors: Aaron Miller, Timothy Rambo
  • Patent number: 11156503
    Abstract: Methods, devices and systems are disclosed that enable accurate and reliable measurements of wavefront aberrations with a wide dynamic range. The described wavefront sensors can be implemented at a low cost and without any moving parts. One wavefront sensor includes an optical pyramid positioned to receive a focused incoming light beam. The optical pyramid includes three facets that each allow a portion of the focused incoming light beam to exit the optical pyramid. The wavefront sensor also includes one or more imaging lenses positioned to receive light that exits each of the facets of the optical pyramid, and one or more lenslet arrays positioned to receive light from the one or more imaging lenses and to produce a plurality of focused light spots corresponding to each lenslet of the lenslet array.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: October 26, 2021
    Inventors: Michael Hart, Charlotte Guthery
  • Patent number: 11156498
    Abstract: An object detector including a light-emitting system to emit light to an object, a light detector, a signal detector, and a threshold adjuster. The light detector receives the light emitted from the light-emitting system and reflected by the object, and output a signal. The signal detector detects the signal output from the light detector based on a threshold value of voltage. The threshold adjuster changes the threshold value between when the light-emitting system emits light to a part of a light-emission range of the light-emitting system and when the light-emitting system emits light to other part of the light-emission range other than the part of the light-emission range.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: October 26, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takuei Nishio
  • Patent number: 11152930
    Abstract: The present invention introduces an arrangement for enhancing the performance of an electronic circuit comprising a phototransistor (Q). Either a common-collector or a common-emitter connected phototransistor (Q) has a main resistor (RL), and at least one external bias resistors (RL2, RL3, RL4), each in parallel to one another. The microcontroller may directly control the voltage outputs or act via respective switches (S1, S2) regarding each respective resistor. When the electronic circuit with the phototransistor (Q) is switched on, at least one of the external bias resistors (RL2, RL3, RL4) are switched on. The voltage output rise time is short, and when the bias has been set, the external bias resistor(s) are disconnected functionally. This means that during the actual measurement with the electric circuit, only the main resistor (RL) is used in the connection.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 19, 2021
    Assignee: Oura Health Oy
    Inventors: Petteri Järvelä, Tero Vallius
  • Patent number: 11143553
    Abstract: An optical sensor arrangement comprises a photodiode and a converter arrangement including an integration amplifier, a comparator amplifier, an integration capacitor and a comparator capacitor. An offset of the integration amplifier is corrected in that the integrator output signal is compared with a high and a low comparison voltage to repetitively adjust an offset trim value. The use of two comparison thresholds creates noise immunity.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: October 12, 2021
    Inventors: Louis Albert Williams, III, Gonggui Xu
  • Patent number: 11137283
    Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for a photonic apparatus with a photodetector with bias control to provide substantially constant responsivity. The apparatus includes a first photodetector, to receive an optical input and provide a corresponding electrical output; a second photodetector coupled with the first photodetector, wherein the second photodetector is free from receipt of the optical input; and circuitry coupled with the first and second photodetectors, to generate a bias voltage, based at least in part on a dark current generated by the second photodetector in an absence of the optical input, and provide the generated bias voltage to the first photodetector. The first photodetector is to provide a substantially constant ratio of the electrical output to optical input in response to the provision of the generated bias voltage. Additional embodiments may be described and claimed.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: October 5, 2021
    Assignee: Intel Corporation
    Inventors: Ganesh Balamurugan, Haisheng Rong, Meer Nazmus Sakib, Hao Li
  • Patent number: 11137342
    Abstract: The present invention relates to an optical flow cell (1) for a measuring device, having an input light guide with a light exit surface, an output light guide with a light entrance surface, said input light guide and output light guide being integrated with a holder (30) to form optical flow cell (1), and wherein the holder (30) extends along a first axis (A) and has a through hole (31) for receiving a flow of a sample fluid, said through hole (31) being transversal to said first axis (A), and the input light guide and output light guide further are arranged in said holder (30) so that the light exit surface and the light entrance surface extend into said through hole (31) and are arranged to be in optical alignment with each other and at a first distance from each other. The invention also relates to a measuring device having at least one optical flow cell (1).
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: October 5, 2021
    Assignee: Cytiva Sweden AB
    Inventors: Henrik Svanberg, Hanno Ehring, Erik Nils Ostlund
  • Patent number: 11137517
    Abstract: A method for forming a molded proximity sensor with an optical resin lens and the structure formed thereby. A light sensor chip is placed on a substrate, such as a printed circuit board, and a diode, such as a laser diode, is positioned on top of the light sensor chip and electrically connected to a bonding pad on the light sensor chip. Transparent, optical resin in liquid form is applied as a drop over the light sensor array on the light sensor chip as well as over the light-emitting diode. After the optical resin is cured, a molding compound is applied to an entire assembly, after which the assembly is polished to expose the lenses and have a top surface flush with the top surface of the molding compound.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: October 5, 2021
    Inventors: Wing Shenq Wong, Andy Price, Eric Christison