Patents Examined by Don J Williams
  • Patent number: 10916916
    Abstract: A vertical cavity surface emitting laser includes a gain layer configured to generate light; a distributed Bragg reflector below the gains layer; and a meta structure reflector above the gain layer and comprising a plurality of nano structures having a sub wavelength dimension.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: February 9, 2021
    Inventors: Byunghoon Na, Seunghoon Han
  • Patent number: 10916413
    Abstract: An apparatus for amplifying an electron signal caused by the impact of a particle with an electron emissive surface. The apparatus includes: a first electron emissive surface configured to receive an input particle and thereby emit one or more secondary electrons, a series of second and subsequent electron emissive surfaces configured to form an amplified electron signal from the one or more secondary electrons emitted by the first electron emissive surface, and one or more power supplies configured to apply bias voltage(s) to one or more of the emissive surfaces. The bias voltage(s) is sufficient to form the amplified electron signal. The apparatus is configured such that the terminal electron emissive surface(s) of the series of second and subsequent electron emissive surfaces draw a higher electrical current than that of the remainder electron emissive surface(s). The apparatus may be used as part of detector in a mass spectrometer, for example.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: February 9, 2021
    Inventors: Wayne Sheils, Kevin Hunter
  • Patent number: 10916573
    Abstract: A semiconductor device including photosensor capable of imaging with high resolution is disclosed. The semiconductor device includes the photosensor having a photodiode, a first transistor, and a second transistor. The photodiode generates an electric signal in accordance with the intensity of light. The first transistor stores charge in a gate thereof and converts the stored charge into an output signal. The second transistor transfers the electric signal generated by the photodiode to the gate of the first transistor and holds the charge stored in the gate of the first transistor. The first transistor has a back gate and the threshold voltage thereof is changed by changing the potential of the back gate.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: February 9, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Yoshiyuki Kurokawa
  • Patent number: 10905825
    Abstract: An optical sensor for a delivery device having a piston that displaces a substance, such as a fluid, from a reservoir. The optical sensor has a light source and a detector array for imaging encoding features disposed along a plunger rod coupled to the piston. By virtue of the pattern of encoding features, an absolute position of the plunger rod relative to a fiducial position may be determined uniquely. Thus, the volume of fluid remaining in the reservoir, the rate of fluid delivery, and proper loading of the reservoir may be accurately ascertained. Additionally, the encoding may serve to uniquely identify a version of the reservoir which may be supplied in various versions corresponding, for example, to differing concentrations of a therapeutic agent to be dispensed.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: February 2, 2021
    Inventors: Marc A. Mandro, Larry B. Gray
  • Patent number: 10911706
    Abstract: Shading correction is realized without sacrificing a noise characteristic and a sensitivity characteristic. A solid-state imaging element includes a plurality of pixels that are arranged two-dimensionally and each outputs analog voltage proportional to electron produced by photodiode and an AD conversion section that convert analog voltages output from the pixels into digital signals. First and second pixels included in the plurality of pixels differ in conversion efficiency with which a unit quantity of electrons output from the photodiodes are converted into the analog voltages.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: February 2, 2021
    Inventor: Shunsuke Ishii
  • Patent number: 10886829
    Abstract: The disclosure discloses an electromagnetic driving module which includes a base, two magnetic elements, a wiring assembly, a reference element, and a sensor element. The two magnetic elements are arranged along a reference line and positioned at two sides of the base. The wiring assembly is connected to the base and arranged adjacent to the two magnetic elements. The reference element is positioned on the base. The sensor element is adjacent to the reference elements and configured to detect the movement of the reference element to position the base. A lens device using the electromagnetic driving module is also disclosed.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: January 5, 2021
    Assignee: TDK TAIWAN CORP.
    Inventors: ShangYu Hsu, Nai-Wen Hsu
  • Patent number: 10863124
    Abstract: The present disclosure relates to a solid-state image pickup apparatus, a correction method, and an electronic apparatus, enabled to suppress an apparent uncomfortable feeling of an image output from a solid-state image pickup apparatus in which pixels of different OCL shapes are mounted mixedly. A solid-state image pickup apparatus according to an aspect of the present disclosure includes a pixel array in which a first pixel in which an OCL (On Chip Lens) of a standard size is formed and a second pixel in which an OCL of a size different from the standard size is formed are present mixedly, and a correction section that corrects a pixel value of the first pixel that is positioned in the vicinity of the second pixel among the first pixels on the pixel array. The present disclosure can be applied to, for example, a CMOS image sensor.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: December 8, 2020
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Takeru Tsuzuki, Katsumi Nishikori
  • Patent number: 10855229
    Abstract: Methods and systems for process and temperature compensation in a transimpedance amplifier using a dual replica and configurable impedances is disclosed and may include a transimpedance amplifier (TIA) circuit comprising a first TIA, a second TIA, a third TIA, and a control loop. The first TIA comprises a fixed feedback resistance and the second and third TIAs each comprise a configurable feedback impedance. The system may comprise a gain stage with inputs coupled to outputs of the first and second TIAs and with an output coupled to the configurable feedback impedance of the second and third TIAs. The circuit may be operable to configure a gain level of the first TIA based on the fixed feedback resistance and a reference current applied at an input to the first TIA, and configure a gain level of the second and third TIAs based on a control voltage generated by the gain stage.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: December 1, 2020
    Assignee: Luxtera LLC
    Inventors: Stefan Barabas, Joseph Balardeta, Simon Pang, Scott Denton
  • Patent number: 10845218
    Abstract: An encoder includes a base portion, a rotation portion that is provided to be rotatable about a rotation axis with respect to the base portion, a mark that is disposed around the rotation axis on the rotation portion, an imaging element that is disposed in the base portion and images the marks, a storage portion that stores a reference image, and a determination portion that performs template matching on the mark imaged by the imaging element by using the reference image, so as to determine a rotation state of the rotation portion with respect to the base portion.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: November 24, 2020
    Inventor: Takayuki Kondo
  • Patent number: 10840281
    Abstract: A device that includes an analog-to-digital converter circuit and a control circuit is disclosed. The analog-to-digital converter circuit converts at least one of analog pixel output signals from a pixel array, to at least one of digital signals. The analog-to-digital converter circuit includes a comparator which generates a comparator output signal for operatively enabling and disabling, in accordance with a reference signal and an analog pixel output signal from the pixel array, a counter generating a digital signal. The control circuit disables, in accordance with the comparator output signal, the comparator.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 17, 2020
    Inventors: Kuo-Yu Chou, Shang-Fu Yeh
  • Patent number: 10831035
    Abstract: An optical encoder 10 comprising: a light source 11; a splitter 12 splits a light from the light source 11, a light receiving unit 16; a scale 13 is arranged on a light path and movable in a measurement direction, a grating being arranged on a main surface of the scale; and an offset diffraction grating 14 includes a plurality of diffraction gratings arranged in the optical path from the splitter 12 to the light receiving unit 16, the plurality of diffraction gratings diffracting the split lights with different phases, wherein, the plurality of diffraction gratings 13 in the offset diffraction grating 14 are arranged in one plane parallel to the main surface of the scale and are offset each other in an offset direction orthogonal to the measurement direction, the light receiving unit 16 includes a plurality of light-receiving elements 16-11 to 16-23 arranged in the offset direction.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: November 10, 2020
    Inventor: Akihide Kimura
  • Patent number: 10830638
    Abstract: A photodetector circuit is disclosed. The photodetector circuit includes an optical input configured to receive a source optical signal for detection by the photodetector circuit, an optical waveguide for coupling the optical input and at least one side of a plurality of sides of a photodiode, wherein the optical waveguide is configured to generate a first optical signal and a second optical signal from the source optical signal, and the photodiode coupled to the first optical waveguide, where the photodiode is illuminated on the at least one side by the first and second optical signals at different locations on the photodiode, where the photodiode generates a photocurrent based on the first and second optical signals reducing photocurrent saturation. Providing a delay between the first and second optical signals reduces an out-of-band frequency response of the photodiode circuit.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: November 10, 2020
    Assignee: Ciena Corporation
    Inventors: Francois Pelletier, Michel Poulin, Yves Painchaud, Michael Vitic, Christine Latrasse, Alexandre Delisle-Simard
  • Patent number: 10823879
    Abstract: An obstacle detection system includes a first light emitter that emits a light signal and a first light detector configured to receive a portion of the light signal reflected back from an object. The obstacle detection system includes a second light emitter configured to emit a test signal toward the first light detector, and a second light detector configured to detect the light signal emitted by the first light emitter. The obstacle detection system includes a processor to determine, based on the light signal, whether an obstruction is detected and whether, by use of the second light emitter and the second light detector, the first light emitter and the first light detector are operable.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: November 3, 2020
    Assignee: The Chamberlain Group, Inc.
    Inventor: James J. Fitzgibbon
  • Patent number: 10823974
    Abstract: The present disclosure provides an optical system. In one aspect, the optical system includes a plurality of imagers configured to emit an electromagnetic radiation, a plurality of optical sensors configured to receive the electromagnetic radiation from the imagers, and a beam splitting device disposed at an optical path between the imagers and the optical sensors. In one example, the beam splitting device is a multi-way beam splitter configured to receive the electromagnetic radiation from one of the imagers and separate the received electromagnetic radiation into a plurality of portions, each separated portion of the received electromagnetic radiation being directed to one of the optical sensors.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: November 3, 2020
    Assignee: Wavefront Research, Inc.
    Inventor: Thomas A. Mitchell
  • Patent number: 10816694
    Abstract: A system to detect obstacles includes a power beam transmission circuit, a power beam reception circuit arranged to receive a power beam from the power beam transmission circuit, an emitter module, and a detector module arranged to distinguish between a first characteristic and a second characteristic. The emitter module includes a first emitter arranged to emit a first signal having the first characteristic, the first signal emitted in proximity to the power beam, and a second emitter arranged to emit a second signal having the second characteristic, the second characteristic different from the first characteristic, the second signal emitted in proximity to the first signal. The detector module includes a first detector arranged to respond to the first signal emitted by the first emitter, wherein the detector module is arranged to determine when an obstacle is in or near a line-of-sight transmission path between the first emitter and the first detector.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: October 27, 2020
    Assignee: LASERMOTIVE, INC.
    Inventors: Jordin T. Kare, Thomas J. Nugent, Jr., David Bashford, Carsten Casey Erickson, Thomas W. Bashford
  • Patent number: 10816472
    Abstract: An image acquisition device includes a spatial light modulator modulating irradiation light, a control unit controlling a modulating pattern so that first and second light converging points are formed in an observation object, a light converging optical system converging the irradiation light, a scanning unit scanning positions of the first and second light converging points in the observation object in a scanning direction intersecting an optical axis of the light converging optical system, and a photodetector detecting first observation light generated from the first light converging point and second observation light generated from the second light converging point. The photodetector has a first detection area for detecting the first observation light and a second detection area for detecting the second observation light. The positions of the first and second light converging points are different from each other in a direction of the optical axis.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: October 27, 2020
    Inventors: Naoya Matsumoto, Koyo Watanabe
  • Patent number: 10795062
    Abstract: A system and method are provided for forming one-way light transmissive layers implementing optical light scattering techniques in those layers, and to objects, object portions, lenses, filters, screens and the like that are formed of, or that otherwise incorporate, such one-way light transmissive layers. Processes are provided by which to form, or otherwise incorporate, one or more one-way light transmissive, or substantially transparent, object portions or layers in solid or hollow objects Individual one-way light transmissive layers are formed of substantially-transparent sub-micrometer spheres, including micro-particles and/or nano-particles, with nano-voids incorporated between them.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: October 6, 2020
    Assignee: Face International Corporation
    Inventors: Clark D Boyd, Bradbury R Face, Jeffrey D Shepard
  • Patent number: 10795019
    Abstract: An object detector includes a light-emitting system and a light-receiving system. The light-emitting system includes a light source including a plurality of light-emitting elements disposed in one-axis direction. The light-emitting system emits light. The light-receiving system receives the light emitted from the light-emitting system and reflected by an object. The plurality of light-emitting elements emits a plurality of light beams to a plurality of areas differing in the one-axis direction. The amount of light to illuminate some of the plurality of areas is different from the amount of light to illuminate other area other than the some of the plurality of areas.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: October 6, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventor: Shigeaki Imai
  • Patent number: 10794762
    Abstract: A method for ambient light subtraction providing a sensor having an emitter, a receiver, and a processor; performing a first sampling process, during which the emitter does not emit signals, the receiver receives a first ambient light signal converted into a first data set by the processor; performing a second sampling process, during which the emitter emits a detecting signal, the receiver receives a second ambient light signal and the detecting signal converted into a second data set by the processor; performing a third sampling process, during which the emitter does not emit signals, the receiver receives a third ambient light signal converted into a third data set by the processor; deriving an average value by calculating the average of the first data set and the third data set; and deriving a difference value by calculating the difference between the second data set and the average value.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: October 6, 2020
    Inventors: John Julius De Leon Asuncion, Prabakaran Chinnusamy, Tong-Tee Tan
  • Patent number: 10790109
    Abstract: An image intensifier sensor for acquiring, amplifying and displaying images and including a vacuum envelope, the image intensifier sensor including a photocathode arranged for releasing photoelectrons into the vacuum envelope upon electromagnetic radiation acquired from the images which impinges the photocathode, an anode, spaced apart from and in facing relationship with the photocathode, arranged for receiving the photoelectrons and converting the photoelectrons for displaying the images on the basis thereof, and a power supply unit for providing power to the image intensifier sensor, wherein the image intensifier sensor further includes potting material, wherein the potting material comprises a foam compound.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: September 29, 2020
    Inventor: Bjorn Pluis