Patents Examined by Andrew Lee
  • Patent number: 11415419
    Abstract: A multifunctional photonic integrated circuit (PIC) suitable for the manufacture of fiber optic gyroscopes (FOG) is described. The PIC is constructed and arranged to exhibit a scale factor of substantially high stability and accuracy. The PIC may comprise, for example, a high optical birefringence and low propagation loss waveguide, a low wavelength-dependent split-ratio Y-junction, a high extinction ratio linear polarizer, and high efficiency fiber-to-waveguide mode-size converters. Considerations for ensuring high-level FOG performance are addressed by, for example, optimization of waveguide structure, functional requirements for individual components, and combined effects of the circuit layout. A high-end, tactical grade FOG may be built using the disclosed PIC, after connecting to polarization maintaining optical fiber coil, a light source, and a photodetector.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: August 16, 2022
    Assignee: KVH Industries, Inc.
    Inventors: Liming Wang, Daniel R. Halstead, Thomas D. Monte, Martin A. Kits van Heyningen
  • Patent number: 11415406
    Abstract: A laser apparatus, a measurement apparatus, and a measurement method are provided in which the laser apparatus outputs a frequency-modulated laser beam with a plurality of modes and includes: an optical cavity that has a gain medium for amplifying a light to be input, and an optical SSB modulator for shifting a frequency of the light amplified by the gain medium: and a control part that controls the optical SSB modulator to shift a frequency of a light to be input to the optical SSB modulator.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: August 16, 2022
    Assignees: Mitutoyo Corporation, 3D Innovation Co., Ltd
    Inventors: Shinji Komatsuzaki, Tomotaka Takahashi, Hiroki Ujihara
  • Patent number: 11415407
    Abstract: Embodiments of the present invention provide a method and apparatus for frequency-domain optical interferometry imaging. Embodiments of the invention include an apparatus comprising a line-shaping optical element for directing optical radiation into a line illumination, an imaging optical element for receiving optical radiation comprising radiation reflected from a target sample and a reference point associated with the target sample, and a detection unit for measuring common path interferences between a plurality of reflections from the target sample and the reference point. Embodiments of the invention include a method comprising directing radiation into a line illumination, directing the line illumination towards a target sample, receiving radiation reflected from the target sample at a detection unit, and measuring common path interferences between a plurality of reflections at the target sample and a reference point.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: August 16, 2022
    Assignee: THE UNIVERSITY OF LIVERPOOL
    Inventors: Yaochun Shen, Yalin Zheng, Yue Dong, Samuel Lawman
  • Patent number: 11402935
    Abstract: A display device is disclosed, which has excellent touch sensitivity due to a corner area of a screen, wherein the corner area is formed to be curved. The display device comprises a substrate including a touch area having a corner touch area; a plurality of gate lines arranged on the substrate in a first direction; a plurality of data lines arranged in a second direction crossing the first direction; a plurality of pixel areas defined by crossing the plurality of gate lines and the plurality of data lines; a plurality of common electrodes arranged to overlap at least one pixel area; and a plurality of touch link lines electrically connected with the plurality of common electrodes and extended in a direction parallel with the first direction or the second direction, wherein, among the plurality of common electrodes, the first common electrodes arranged on the corner touch area have shape different from that of the second common electrodes arranged on the other touch area except the corner touch area.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: August 2, 2022
    Assignee: LG Display Co., Ltd.
    Inventor: JunYeob Lee
  • Patent number: 11385044
    Abstract: The range of measurement in spectrally controlled interferometry (SCI) is extended by superimposing multiple modulations on the low-coherence light used for the measurement. Optimally, a spectrally controllable light source modulated sinusoidally with low spectral frequency is combined with a delay line, such as provided by a Michelson interferometer. The resulting light is injected into a Fizeau interferometer to generate localized fringes at a distance corresponding to the effect of the spectrally modulated source combined with the optical path difference produced by the delay line. The combination provides a convenient way to practice SCI with all its advantages and with a range that can be extended to the degree required for any practically foreseeable application. Alternatively, a single source capable of multiple modulations can be used instead of a separate second modulator component.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: July 12, 2022
    Assignee: APRE INSTRUMENTS, INC.
    Inventor: Piotr Szwaykowski
  • Patent number: 11385057
    Abstract: Systems and methods for embodiments having an extra thick ultraviolet durability coating are described herein. For example, a system may include a laser block assembly. The system may also include a cavity in the laser block assembly. Further, the system may include a plurality of multilayer mirrors in the cavity. In certain embodiments, at least one multilayer mirror of the plurality of multilayer mirrors may include a plurality of alternating layers of a first optical material having a high index of refraction and a second optical material having a first low index of refraction. Additionally, the at least one multilayer mirror may include a multilayer durability coating disposed on the plurality of alternating layers.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: July 12, 2022
    Assignee: Honeywell International Inc.
    Inventors: Steven C. Albers, Dean Eivind Johnson, Randy Ramberg
  • Patent number: 11385188
    Abstract: A system that may include a radiation source to generate a beam of coherent radiation; traveling lens optics to focus the beam to generate multiple spots on a surface of a sample and to scan the spots together over the surface; collection optics to collect the radiation scattered from the multiple spots and to focus the collected radiation to generate a pattern of interference fringes; and a detection unit to detect changes in the pattern of interference fringes.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: July 12, 2022
    Assignee: APPLIED MATERIAL ISRAEL, LTD.
    Inventors: Amir Shoham, Yoav Berlatzky, Haim Feldman
  • Patent number: 11378401
    Abstract: A polarization-maintaining fully-reciprocal bi-directional optical carrier microwave resonance system and an angular velocity measurement method thereof. In the system, highly stable optical carrier microwaves are generated in a clockwise direction and a counterclockwise direction in the same resonant cavity, and are used to measure the angular velocity of rotation of a carrier apparatus. A fully reciprocal ring-shaped resonant cavity structure is used to achieve a fully reciprocal bi-directional optical resonance system. A polarization state separation technique is used to separate an optical signal into two wavelengths, and optical signals with perpendicular polarization states are transmitted in opposite directions in a sensing ring, thereby improving the measurement capability of the sensing ring. Bi-directional optical carrier microwave resonance is achieved by using a phase tracking structure and a regenerative mode locking technique.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: July 5, 2022
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Kaichen Song, Jinlong Yu, Lingyun Ye, Ju Wang
  • Patent number: 11373607
    Abstract: A driving method of display device for a display device capable of reducing flicker due to refresh rate variation includes: determining whether a processor of the display device is generating a vertical blank interval of an image signal, wherein said vertical blank interval is next to a last frame data period thereof, and the last frame data period is for a last frame to be displayed by a display panel; and activating a data line of the display panel with a balancing voltage related to data of a line of the last frame when the processor is generating the vertical blank interval, wherein a plurality of sub-pixels of the display panel connects to the data line, the data of the line of the last frame are sequentially transmitted to the plurality of sub-pixels in the last frame data period for displaying the last frame. Said display device is also disclosed.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: June 28, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Yu-Hung Su, Vans Shih, Yen-Tao Liao
  • Patent number: 11360620
    Abstract: A touch display device includes: a touch panel including N touch electrodes; a sensor sensing unit block including M sensor sensing units and to sense two or more touch electrodes among the N touch electrodes; a front multiplexer to select two or more touch electrodes from among the N touch electrodes and connect the selected touch electrodes to the sensor sensing unit block. The front multiplexer is configured to select M touch electrodes, which are disposed in a sensing active region corresponding to a first sensing period, from among the N touch electrodes, and to match and connect the M touch electrodes to the M sensor sensing units, wherein M is greater than or equal to 2, and N is greater than M. The M sensor sensing units are configured to simultaneously sense the M touch electrodes disposed in the sensing active region during the first sensing period.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: June 14, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: KiYong Kim, HyeongWon Kang, Youngwoo Jo, HongJu Lee
  • Patent number: 11353316
    Abstract: A pixelated color mask is combined with a pixelated polarization mask in dynamic interferometry. The color mask includes a wavelength-selective bandpass filter placed in front of each camera pixel such that each set of contiguous four camera pixels is covered by two green bandpass filters, a red bandpass filter, and a blue bandpass filter. The pixelated phase mask is coupled to the color filters such that one polarization filter covers one set of color filters. At least three polarization filters are used to calculate phase. In addition, the color signals can be used, for example, to encode the motion of the interferometer, to provide very high speed autofocus or tip/tilt feedback, to create a color image of the object being measured, to automatically focus the system at different positions for different measurements conducted with different color sources, and to perform heterodyne interferometry with a single, vibration-immune measurement.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: June 7, 2022
    Assignee: Onto Innovation Inc.
    Inventors: Neal Brock, James Millerd, Erik Novak, Brad Kimbrough
  • Patent number: 11353583
    Abstract: An optical position-measurement device includes a reflection measuring standard and a scanning unit, which is movable in relation thereto in at least one measurement direction. The reflection measuring standard has an incremental measuring graduation and a reference marking in at least one reference position. In addition to scanning device(s) for the incremental signal generation, the scanning unit includes for the reference signal generation at least one light source, imaging optics, a diaphragm structure arranged in a diaphragm plane, and a plurality of detector elements. Via the imaging optics, imaging of the reference marking onto the diaphragm structure is implemented. The reference marking is provided on the reflection measuring standard and is integrated into the incremental measuring graduation. In addition, the imaging optics has a variable, object-side focal length along a transversal direction oriented perpendicular to the measurement direction.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: June 7, 2022
    Assignee: DR. JOHANNES HEIDENHAIN GmbH
    Inventor: Karsten Sändig
  • Patent number: 11346747
    Abstract: A system for testing an optical surface, the system comprising a non-coherent light source, a detector, a test plate positioned between the non-coherent light source and the optical surface, the test plate separated from the optical surface by a gap, and a processor. The processer is configured to cause the non-coherent light source to illuminate the test plate and optical surface with non-coherent light, control the detector to capture an interferogram produced by interference between light reflected from the test plate and light reflected from the optical surface, and perform quantitative analysis on the interferogram to characterize aberrations in the optical surface.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: May 31, 2022
    Assignee: Harris Corporation
    Inventors: Cormic Merle, Daniel Balonek, Gene Olczak, Malcolm O'Sullivan
  • Patent number: 11347465
    Abstract: Systems and methods are provided that allow a display device array to be used to present content to one or more users. In particular, a user associated with a first user device, may opt to present content on a plurality of other devices. The plurality of other devices may be arranged in any desired configuration, and the first user device can capture the arrangement. Upon capturing the arrangement, content, under the control of the first user device, may be presented on the plurality of other devices in accordance with the arrangement.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: May 31, 2022
    Assignee: Disney Enterprises, Inc.
    Inventor: Andranik Aghababyan
  • Patent number: 11346649
    Abstract: A microscope comprising a coherent light source producing a coherent light beam, a light beam guide system comprising a beam splitter configured to split the coherent light beam into a reference beam and a sample illumination beam, a sample holder configured to hold a sample to be observed, a sample illumination device configured to direct the sample illumination beam through the sample and into a microscope objective, a beam reuniter configured to reunite the reference beam and sample illumination beam after passage of the sample illumination beam through the sample to be observed, and a light sensing system configured to capture at least phase and intensity values of the coherent light beam downstream of the beam reuniter.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: May 31, 2022
    Assignee: NANOLIVE SA
    Inventors: Yann Cotte, Pierre-Alain Cotte, Sebastien Equis, Andreas Kern
  • Patent number: 11336395
    Abstract: In a terminal (200), a HARQ-ACK generator (208) generates one or more response signals for respective code block groups based on a parameter included in each of a plurality of downlink control signals, the code block groups forming each of a plurality of transport blocks to be assigned by the plurality of downlink control signals, the parameter relating to the number of code block groups. A transmitter (211) collectively transmits the response signals for the respective code block groups. A value of the parameter herein is to be configured, at least using a first granularity coarser than a second granularity in units of the code block groups.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 17, 2022
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Tomoya Nunome, Hidetoshi Suzuki, Lilei Wang
  • Patent number: 11333556
    Abstract: Apparatus and associated methods relate to determining the wavelength of a narrow-band light beam. The narrow-band light beam is passed through an optical filter. The optical filter has complementary and monotonically-varying transmission and reflection coefficients within a predetermined band of wavelengths. The predetermined band of wavelengths includes the wavelength of the narrow-band light beam. A first photodetector detects amplitude of a first portion of the narrow-band light beam transmitted by the optical filter. A second photodetector detects amplitude of a second portion of the narrow-band light beam reflected by the optical filter. The wavelength of the narrow-band light beam is determined, based on a ratio of the determined amplitudes of the first and second portions of the narrow-band light beam transmitted and reflected, respectively.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: May 17, 2022
    Assignee: SIMMONDS PRECISION PRODUCTS, INC.
    Inventors: Tyler Arsenault, Peter J. Carini, David H. Crowne
  • Patent number: 11333601
    Abstract: A method of determining a refractive index of a material sample comprises removably mounting the material sample into a sample holder having a thermal control mechanism, a thermal expansion compensation mechanism, and a rotation mechanism; projecting a laser beam into the material sample, wherein the material sample has a predetermined orientation and temperature, wherein the material sample has parallel sides defining parallel planes for entry and exit of the laser beam into and out of the material sample; collecting a refracted laser beam from the material sample, and determining the refractive index for the material sample at the predetermined temperature. The laser beam may be a visible laser and/or an infrared laser. The thermal control mechanism comprises a thermal controller coupled to an induction coil apparatus and a temperature sensor. The sample holder comprises a refractory metal consisting of one or more of a niobium/molybdenum alloy and a tantalum/tungsten alloy.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: May 17, 2022
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Woo Yong Jang, Nathan E. Zechar, James Park, Andrew J. Hamilton
  • Patent number: 11332012
    Abstract: A device for controlling an interior lighting system of a vehicle to produce ambient lighting and/or reading lighting involves the interior lighting system having an array of a plurality of light sources. The device includes a control unit, by means of which the light sources of the array can be individually controlled in order to produce the ambient lighting and/or the reading lighting, and an input unit that can be connected to the control unit. The input unit has a touch-sensitive screen for inputting a current set of control information for the control unit. The control unit controls the light sources on the basis of the current set of control information. Furthermore, the input unit, on the basis of the current set of control information, displays associated ambient lighting and/or reading lighting for an illuminable region in the vehicle interior on the screen.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: May 17, 2022
    Assignee: MERCEDES-BENZ GROUP AG
    Inventors: Daniel Betz, Daniel Fuhrmann, Michael Holz, Juergen Ketterer, Daniel Steffen Setz
  • Patent number: 11330577
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment may be configured to monitor a first set of decoding candidates within a first search space for receiving a physical downlink control channel message. A base station may identify downlink data for the user equipment and may transmit a signal to the user equipment. The user equipment may receive the signal within the first search space. In some cases, the signal may include a command for activating a second search space. The user equipment may monitor a second set of decoding candidates within the second search space based on receiving the signal. The user equipment communicate, with the base station, based on monitoring the first set of decoding candidates within the first search space and the second set of decoding candidates within the second search space.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: May 10, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Seyedkianoush Hosseini, Jing Jiang, Wanshi Chen, Jing Sun, Mostafa Khoshnevisan, Wei Yang, Seyed Ali Akbar Fakoorian, Xiaoxia Zhang