Patents Examined by Kevin Pyo
  • Patent number: 10254157
    Abstract: An asymmetric optical resonator comprises a waveguiding element forming a closed loop. A first circumference of the loop is different from a second circumference, the first circumference being measured at one end of the loop in a plane perpendicular to a cavity axis. The second circumference is measured at the opposite end of the loop in a plane perpendicular to the cavity axis. An effective refractive index of the waveguiding element varies along a circumferential direction of the loop.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 9, 2019
    Assignee: Leibniz-Institut für Festkörper-und Werkstoffforschung Dresden e.V.
    Inventors: Libo Ma, Oliver G. Schmidt
  • Patent number: 10234309
    Abstract: A photon momentum sensor includes: a reflector plate that includes: a central disk including a mirror; an annular member; a plurality of spring legs interposed between the central disk and the annular member, such that: the spring legs are interleaved; neighboring spring legs are spaced apart; and the spring legs individually are arranged in an Archimedean spiral that provides orthogonal motion of the central disk relative to the plane of the annular member; and a bias plate disposed opposing the reflector plate such that: the central disk of the reflector plate moves orthogonally to a plane of the bias plate in response to reflection of laser light, and the central disk and the bias plate are arranged spaced apart as a capacitive structure.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: March 19, 2019
    Assignee: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE
    Inventors: Alexandra Artusio-Glimpse, John Lehman, Michelle Stephens, Nathan Tomlin, Paul Williams, Ivan Ryger
  • Patent number: 10234546
    Abstract: A light detection and ranging (LIDAR) system can emit light toward an environment and detect responsively reflected light to determine a distance to one or more points in the environment. The reflected light can be detected by a plurality of plurality of photodiodes that are reverse-biased using a high voltage. Signals from the plurality of reverse-biased photodiodes can be amplified by respective transistors and applied to an analog-to-digital converter (ADC). The signal from a particular photodiode can be applied to the ADC by biasing a respective transistor corresponding to the particular photodiode while not biasing transistors corresponding to other photodiodes. The gain of each photodiode/transistor pair can be controlled by adjusting the bias voltage applied to each photodiode using a digital-to-analog converter. The gain of each photodiode/transistor pair can be controlled based on the detected temperature of each photodiode.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: March 19, 2019
    Assignee: Waymo LLC
    Inventors: Pierre-yves Droz, Samuel William Lenius
  • Patent number: 10222331
    Abstract: The present disclosure relates to a sensor cap for an optochemical sensor for determining or monitoring at least one analyte present in a medium having a substantially cylindrical plug-in component and a sleeve-shaped outer component. The plug-in component has an optical component with a convex-shaped surface region for optimal flow, and the optical component at least partially consists of a material transparent to measuring radiation. On the surface region of the optical component is an analyte-sensitive matrix having at least one functional layer. The plug-in component and the sleeve-shaped component are designed such that the connecting region coming into contact with the medium is between the plug-in component and the sleeve-shaped outer component in the edge region of the optical component or is at a radial distance from the edge region of the optical component, and is sealed, without a gap, facing the medium.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: March 5, 2019
    Assignee: Endress+Hauser Conducta GmbH+Co. KG
    Inventors: Thomas Höhne, Christian Fanselow, Andreas Löbbert
  • Patent number: 10215623
    Abstract: An optical sensor (10) includes a first switch (SW1) and a second switch (SW2), these switches are switched between a first step and a second step and thus the coupling of light receiving portions (photodiodes) and three analog-to-digital converters (ADCs) is switched. In the first step of the switch, photocurrents generated in a blue light receiving portion (BLUE), a green light receiving portion (GREEN) and a red light receiving portion (RED) are processed in real time. In the second step, photocurrents generated in an infrared light receiving portion (Ir), an environmental light receiving portion (CLEAR) and the green light receiving portion (GREEN) are processed. The photocurrents of the infrared light receiving portion (Ir) and the environmental light receiving portion (CLEAR) generated in the first step are calculated from a ratio of the two photocurrents measured in the green light receiving portion (GREEN).
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: February 26, 2019
    Assignee: Rohm Co., Ltd.
    Inventor: Yoshitsugu Uedaira
  • Patent number: 10215553
    Abstract: Embodiments described include a system comprising a position sensing device (PSD) and a light source. The light source is configured to, by passing one or more light beams through the PSD, cause one or more electrical currents to flow through the PSD. The system further comprises a processor, configured to (i) in response to the electrical currents, ascertain an amount of power that is delivered by the light source, and (ii) in response to the amount of power exceeding a threshold amount of power, inhibit the light source from further operation. Other embodiments are also described.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: February 26, 2019
    Assignee: Apple Inc.
    Inventors: Jawad Nawasra, Matthew C. Waldon, Scott T. Smith, Thomas M. Gregory
  • Patent number: 10215624
    Abstract: An integrated optical tap monitor takes the form of a highly-reflective outer coating disposed over the active region of an associated photodetector. The coating is of a material that allows for a majority of the impinging optical signal to be re-directed into an output path, while passing a small portion of the signal into the photodetector's active region for monitoring purposes. The integrated configuration is small enough to be housed within a standard TO can, and additional optical components (filters, attenuators, etc.) may be co-located with the integrated tap monitor. By virtue of incorporating the monitoring function with a reflective surface, the integrated tap monitor may be substituted for a turning mirror at any place along a signal path and provide the benefit of power monitoring while also performing signal re-direction.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: February 26, 2019
    Assignee: II-VI Incorporated
    Inventor: Michael Cahill
  • Patent number: 10217785
    Abstract: There is provided a solid-state imaging device including a first substrate having a pixel circuit including a pixel array unit formed thereon, and a second substrate having a plurality of signal processing circuits formed thereon so as to be arranged through a scribe region. The first substrate and the second substrate are stacked.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: February 26, 2019
    Assignee: Sony Corporation
    Inventor: Kunihiko Izuhara
  • Patent number: 10217786
    Abstract: A solid-state image pickup device capable of suppressing the generation of dark current and/or leakage current is provided. The solid-state image pickup device has a first substrate provided with a photoelectric converter on its primary face, a first wiring structure having a first bonding portion which contains a conductive material, a second substrate provided with a part of a peripheral circuit on its primary face, and a second wiring structure having a second bonding portion which contains a conductive material. In addition, the first bonding portion and the second bonding portion are bonded so that the first substrate, the first wiring structure, the second wiring structure, and the second substrate are disposed in this order. Furthermore, the conductive material of the first bonding portion and the conductive material of the second bonding portion are surrounded with diffusion preventing films.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: February 26, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Mineo Shimotsusa
  • Patent number: 10212375
    Abstract: An analog-to-digital converter includes a comparator, a switch, and a counter circuit. The comparator is configured to generate a comparison signal by comparing an analog signal received through a first signal line and a reference signal received through a second signal line. The switch is coupled between the first signal line and the comparator. The switch is open before the analog signal is applied to the first signal line to disconnect the first signal line from the comparator, and is closed after the analog signal is applied to the first signal line to provide the analog signal to the comparator. The counter circuit is configured to generate a digital signal corresponding to the analog signal by performing a count operation in synchronization with a count clock signal based on the comparison signal.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: February 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Moo-Young Kim, Kwang-Hyun Lee, Kyoung-Min Koh
  • Patent number: 10197383
    Abstract: A sensor is disclosed that provides measurements in multiple degrees of freedom without significantly increasing size, complexity, or cost. The sensor can include a light component in support of a first light source operable to direct a first beam of light, and a second light source operable to direct a second beam of light. The sensor can also include an imaging device that can directly receive the first beam of light and the second beam of light and convert these into electric signals. The imaging device and the light component can be movable relative to one another. The sensor can further include a light location module and/or a position module configured to receive the electric signals and determine locations of the first beam of light, the second beam of light on the imaging device and a relative position of the imaging device and the light component.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: February 5, 2019
    Assignee: REMEMDIA LC
    Inventor: Fraser M. Smith
  • Patent number: 10200035
    Abstract: A photoelectric switch, including: a main body, an upper cover, an infrared tube, an elastic shading mechanism, a bridge piece, a slidable switch member, a key, a sound mode trigger block, a silent mode trigger block, and an accommodating space. The slidable switch member is transversely slidable between the main body and the upper cover. The handle of the slidable switch member protrudes out of the main body. Both the sound mode trigger block and the silent mode trigger block are up-down movably disposed on the slidable switch member and move along with the slidable switch member. When the slidable switch member is slid to one side, the sound mode trigger block is disposed right beneath the key; and when the slidable switch member is slid to the other side, the silent mode trigger block is disposed right beneath the key.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: February 5, 2019
    Assignee: Dongguan City Kaihua Electronics Co., Ltd.
    Inventor: Fuxi Wu
  • Patent number: 10194108
    Abstract: Pixel aperture size adjustment in a linear sensor is achieved by applying more negative control voltages to central regions of the pixel's resistive control gate, and applying more positive control voltages to the gate's end portions. These control voltages cause the resistive control gate to generate an electric field that drives photoelectrons generated in a selected portion of the pixel's light sensitive region into a charge accumulation region for subsequent measurement, and drives photoelectrons generated in other portions of the pixel's light sensitive region away from the charge accumulation region for subsequent discard or simultaneous readout. A system utilizes optics to direct light received at different angles or locations from a sample into corresponding different portions of each pixel's light sensitive region.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: January 29, 2019
    Assignee: KLA-Tencor Corporation
    Inventors: Yung-Ho Alex Chuang, John Fielden, David L. Brown, Jingjing Zhang, Keith Lyon, Mark Shi Wang
  • Patent number: 10191353
    Abstract: An optical switch is disclosed which is electrically activatable through received photon energy. The switch may include a substrate responsive to photon energy that forms an optical excitation signal. First and second electrodes may be disposed on first and second surfaces of the substrate. The substrate may have a characteristic of two-photon absorption to enable electrical conduction through the substrate, the two-photon absorption being enhanced by deep energy levels located in a bandgap between conductance and valence bands of the substrate, which are at least near resonant with the photon energy.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: January 29, 2019
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: James S. Sullivan
  • Patent number: 10191296
    Abstract: Devices, apparatus, systems and methods for making and using laser pointers and laser illuminators with reduced risk of optical sensor damage such as eye injuries due to laser radiation from the pointer or illuminator, while scattered beams from the laser pointer or laser illuminator are visible to the optical sensor.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 29, 2019
    Assignee: Beam Engineering for Advanced Measurements Co.
    Inventors: Nelson V. Tabirian, David E. Roberts
  • Patent number: 10186406
    Abstract: A multi-channel photomultiplier tube (PMT) detector assembly includes a photocathode. The detector assembly includes a first dynode channel including a first set of dynode pathways. The first set of dynode pathways include a plurality of dynode stages configured to receive a first portion of the photoelectrons and direct a first amplified photoelectron current onto a first anode. The detector assembly includes an additional dynode channel including an additional set of dynode pathways. The additional set of dynode pathways includes a plurality of dynode stages configured to receive an additional portion of the photoelectrons and direct an additional amplified photoelectron current onto an additional anode. The detector assembly includes a grid configured to direct the first portion of the photoelectrons to one or more of the first set of pathways and an additional portion of the photoelectrons to one or more of the additional set of pathways.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: January 22, 2019
    Assignee: KLA—Tencor Corporation
    Inventor: Derek Mackay
  • Patent number: 10184829
    Abstract: An aquarium photometer system includes a housing unit, an arm, and a mirror. The housing unit includes a light sensor configured to sense light incident on the light sensor and to convert the incident light to a signal. The housing unit also includes an operational amplifier including a first input node, a second input node, and an output node. The operational amplifier is configured to: receive the signal at the first input node, amplify a difference between the signal at the first input node and a signal at the second input node by a gain factor, and output the amplified signal on the output node. The housing unit also includes a potentiometer connected to the operational amplifier and configured to regulate the amplified signal; and a display connected to the potentiometer and configured to show an intensity of light detected by the light sensor based on the regulated amplified signal. The arm at a first end is connected to the housing unit and configured to move the housing unit around an aquarium case.
    Type: Grant
    Filed: August 2, 2015
    Date of Patent: January 22, 2019
    Inventors: Soheil Bahrebar, Sajjad Bahrebar
  • Patent number: 10187596
    Abstract: To provide a solid-state imaging device with short image-capturing duration. A first photodiode in a pixel in an n-th row and an m-th column is connected to a second photodiode in a pixel in an (n+1)-th row and the m-th column through a transistor. The first photodiode and the second photodiode receive light concurrently, the potential in accordance with the amount of received light is held in a pixel in the n-th row and the m-th column, and the potential in accordance with the amount of received light is held in a pixel in the (n+1)-th row and the m-th column without performing a reset operation. Then, each potential is read out. Under a large amount of light, either the first photodiode or the second photodiode is used.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: January 22, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kurokawa, Hideki Uochi
  • Patent number: 10184831
    Abstract: A method for calibrating a test light to simulate a fire includes measuring a baseline resistance induced in a sensor cell of a two-color detector in response to a controlled fire. The method includes monitoring a test resistance induced in the sensor cell in response to exposure to emissions from a test light and adjusting the emissions of the test light until the test resistance of the sensor cell equals the baseline resistance of the sensor cell to achieve a calibration setting for the test light. A test light for a detector includes a housing and a first LED within the housing having a first emission wavelength. A second LED is within the housing. The second LED has a second emission wavelength. The second emission wavelength is different than the first emission wavelength.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 22, 2019
    Assignee: Kidde Technologies, Inc.
    Inventors: Mark T. Kern, Ken Bell, Terry Simpson, Christopher Wilson, David Frasure, Charles B. McLean, Clinton E. Piland
  • Patent number: 10180401
    Abstract: A surface defect detecting method of optically detecting a surface defect of a steel material includes: an irradiation step of irradiating an examination target part with illumination light beams from different directions by using two or more distinguishable light sources; and a detection step of obtaining images by reflected light beams of the respective illumination light beams and detecting a surface defect in the examination target part by executing subtraction processing between the obtained images.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: January 15, 2019
    Assignee: JFE Steel Corporation
    Inventors: Hiroaki Ono, Toshifumi Kodama, Takahiro Koshihara, Akihiro Ogawa, Yukinori Iizuka