Patents Examined by Kevin K Pyo
  • Patent number: 11029396
    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: January 30, 2019
    Date of Patent: June 8, 2021
    Assignee: Waymo LLC
    Inventors: Pierre-Yves Droz, Samuel William Lenius
  • Patent number: 11031511
    Abstract: Various embodiments provide a control circuit that includes at least one active module designed to enable an avalanche diode. The control circuit also includes at least one passive module designed to disable the avalanche diode.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: June 8, 2021
    Assignee: STMicroelectronics (Research & Development) Limited
    Inventor: Laurence Stark
  • Patent number: 11025842
    Abstract: Embodiments relate to image signal processors (ISP) that include binner circuits that down-sample an input image. An input image may include a plurality of pixels. The output image of the binner circuit may include a reduced number of pixels. The binner circuit may include a plurality of different operation modes. In a bin mode, the binner circuit may blend a subset of input pixel values to generate an output pixel quad. In a skip mode, the binner circuit may select one of the input pixel values as the output pixel pixel. The selection may be performed randomly to avoid aliasing. In a luminance mode, the binner circuit may take a weighted average of a subset of pixel values having different colors. In a color value mode, the binner circuit may select one of the colors in a subset of pixel values as an output pixel value.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: June 1, 2021
    Assignee: Apple Inc.
    Inventors: Sheng Lin, D. Amnon Silverstein
  • Patent number: 11017741
    Abstract: A rearview assembly for a vehicle is provided that includes: a housing configured for mounting to the vehicle; a rearview element disposed in the housing that displays images of a scene exterior of the vehicle; a light sensor assembly disposed in the housing; and a controller for receiving the electrical signal of the light sensor and for adjusting a brightness of the images displayed by the rearview element. The light sensor includes a light sensor for outputting an electrical signal representing intensity of light impinging upon a light-receiving surface of the light sensor, and a secondary optical element configured to receive light, wherein the light passes through the secondary optical element to the light sensor, the secondary optical element including a tint material that is substantially color neutral for attenuating light passing therethrough.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: May 25, 2021
    Assignee: GENTEX CORPORATION
    Inventors: Barry K. Nelson, Jon H. Bechtel, Daniel G. McMillan, Spencer D. Reese
  • Patent number: 11014773
    Abstract: A device and a method for detecting a distance from a balloon to an ingot tank is provided. The device comprises a set of photoelectric transmitting tube and photoelectric receiving tube which are arranged in a height range of a balloon, Wherein a light beam between the photoelectric transmitting tube and the photoelectric receiving tube is arranged to be tangent to an appropriate balloon, and is used for detecting whether the balloon is located at an appropriate position according to a number of pulses received by the photoelectric receiving tube in one period of rotation of the balloon.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: May 25, 2021
    Inventors: Jian Nie, Pihua Zhang, Song Pan, Lei Wu, Huanian Yang, Ming Zhang
  • Patent number: 11016285
    Abstract: Methods and apparatus for a sensor system having a structure having a reflective surface, wherein the structure is rotatable about a longitudinal axis. Channels provide respective paths from an entry into the channels to the reflective surface. A shroud selectively block ones of the channels to provide an operational configuration and a calibration configuration.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 25, 2021
    Assignee: Raytheon Company
    Inventors: Li Chiao Po, Eric J. Griffin
  • Patent number: 11009374
    Abstract: A sealed encoder module for mounting onto a machine so as to measure relative displacement of first and second parts of the machine. The sealed encoder module can comprise, a scale, a readhead comprising a scale signal receiver, and an integral protective housing which encapsulates at least the scale and said scale signal receiver. The sealed encoder module can be configured to determine and output diagnostic information regarding a scale signal detected by the readhead.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: May 18, 2021
    Assignee: RENISHAW PLC
    Inventors: Finlay Jonathan Evans, James Reynolds Henshaw, Stephen Lindsey Tocknell, Richard David James Gearing
  • Patent number: 11006502
    Abstract: A light sensor is provided that includes an exposed light transducer for accumulating charge in proportion to light incident thereon over an integration period; and a light-to-pulse circuit in communication with the exposed light transducer, the light-to-pulse circuit operative to output a pulse having a pulse width based on the charge accumulated by the exposed light transducer. The light-to-pulse circuit may include a one shot logic circuit that contributes to generation of the pulse. The light sensor may include an input/output pad, a capacitor provided at the input/output pad for blocking static electricity, an input low pass filter provided at the input/output pad for blocking electromagnetic interference, and/or a bandgap voltage reference circuit connected to a power source having a supply voltage level in a range of about 3.3V to about 5.0V, and for generating a set of stable reference voltages throughout the supply voltage level range.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: May 11, 2021
    Assignee: GENTEX CORPORATION
    Inventors: Barry K. Nelson, Jon H. Bechtel, Daniel G. McMillan, Spencer D. Reese
  • Patent number: 11000182
    Abstract: Embodiments of the invention include an apparatus including an enclosure configured to receive an endoscope having an electromagnetic radiation sensor. The apparatus also includes an electromagnetic radiation source having at least a portion disposed within the enclosure. The electromagnetic radiation source is configured to emit electromagnetic radiation based on a calibration instruction. The electromagnetic radiation sensor is configured to receive at least a portion of the electromagnetic radiation when at least a portion of the endoscope is coupled to the enclosure.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: May 11, 2021
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Nathaniel McCaffrey, Jane Bareau, Laura Keith, James McNally, Jason Sproul
  • Patent number: 11002831
    Abstract: A vehicle includes a road debris blocking system that provides a barrier to road debris at a surveying sensor. The vehicle includes a vehicle body and a processor. A road debris blocking device moves between a stowed configuration and a deployed configuration relative to the vehicle body. An actuator moves the road debris blocking device between the stowed configuration and the deployed configuration. A wheel angle sensor provides a signal to the processor indicative of a wheel angle. A memory module is communicatively coupled to the processor that stores logic that, when executed by the processor, causes the system to receive the signal from the wheel angle sensor and instruct the actuator to move the road debris blocking device from the stowed configuration to the deployed configuration based on the signal.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: May 11, 2021
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Scott L. Frederick, Paxton S. Williams
  • Patent number: 10996049
    Abstract: A system and a method for producing an adjustable light pattern are provided herein. The system may include: a transmitter configured to illuminate a scene with a patterned light being adjusted based on predefined criteria; a receiver configured to receive reflections of the adjusted patterned light; and a computer processor configured to control the adjustment of the patterned light and further analyze the received reflections, to yield a depth map of objects within the scene, wherein the transmitter may include: a light source configured to produce a light beam; a first reflector tiltable approximately along a line on an x-y plane in a Cartesian x-y-z coordinate system; and a second reflector tiltable along a z-axis in said coordinate system, wherein the reflectors are tilted along their respective axes back and forth so as to divert the light beam for creating the adjusted patterned light.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: May 4, 2021
    Assignee: Facebook Technologies, LLC
    Inventor: Guy Raz
  • Patent number: 10989814
    Abstract: A method for managing a dynamic range of an optical detection device illuminated by a modulated optical radiation, the method including: generating a detection signal from the modulated optical radiation; generating, based on the detection signal, a histogram including a plurality of histogram classes; comparing a chosen maximum value and a value of each histogram class of the plurality of histogram classes; and stopping a generation of the histogram in response to a determination that the value of any one of the plurality of histogram classes is equal to the maximum value.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: April 27, 2021
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventor: Pascal Mellot
  • Patent number: 10976194
    Abstract: The present disclosure provides an imaging optical system. In one aspect, the imaging optical system includes, among other things, a light bending element configured to substantially separate electromagnetic radiation into at least two portions, and configured to redirect the at least two portions of said electromagnetic radiation into substantially different directions.
    Type: Grant
    Filed: June 6, 2020
    Date of Patent: April 13, 2021
    Assignee: Wavefront Research, Inc.
    Inventor: Thomas A. Mitchell
  • Patent number: 10979005
    Abstract: Embodiments of the present disclosure provide a current amplification circuitry and a driving method thereof, and a fingerprint detection device. The current amplification circuitry includes a voltage control circuit, a plurality of first current amplification circuits, and a second current amplification circuit. The voltage control circuit provides a voltage control signal to the plurality of first current amplification circuits. The first current amplification circuit includes a current mirror, and the current mirror is coupled to a voltage input terminal, the voltage control circuit, and a first input terminal of the second current amplification circuit. The first current amplification circuit amplifies a current from the voltage input terminal according to the voltage control signal provided by the voltage control circuit, and provides the amplified current to the second current amplification circuit.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: April 13, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Haisheng Wang, Yingming Liu, Xueyou Cao, Ping Zhang, Yanling Han
  • Patent number: 10962400
    Abstract: There is provided a measurement system that measures the volume of a drug solution that fills a needle-shaped recess of a mold. A measurement unit of the measurement system measures respective heights of a plurality of measurement points which are stored in a storage unit and are preset on a plane parallel to the mold, in a direction orthogonal to the plane. A surface shape calculation unit calculates a three-dimensional shape of the surface of the drug solution on the basis of the heights of the plurality of measurement points measured by the measurement unit. A volume calculation unit calculates the volume of the drug solution that fills the needle-shaped recess on the basis of the three-dimensional shape of the surface of the drug solution calculated by the surface shape calculation unit and the shape of the needle-shaped recess of the mold.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: March 30, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Murooka, Yi Hu, Yasutomo Goto
  • Patent number: 10958230
    Abstract: In optical receivers, extending the transimpedance amplifier's (TIA) dynamic range is a key to increasing the receiver's dynamic range, and therefore increase the channel capacity. Ideally, the TIA requires controllable gain, whereby the receiver can modify the characteristics of the TIA and/or the VGA to process high power incoming signals with a defined maximum distortion, and low power incoming signals with a defined maximum noise. A solution to the problem is to provide TIA's and VGA's with reconfigurable sizes, which are adjustable based on the level of power, e.g. current, generated by the photodetector.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 23, 2021
    Assignee: Elenion Technologies, LLC
    Inventors: Ariel Leonardo Vera Villarroel, Abdelrahman Ahmed, Alexander Rylyakov
  • Patent number: 10955265
    Abstract: An encoder scale includes a tabular base material and an optical pattern provided above one surface of the base material, a first region and a second region being disposed side by side above the optical pattern. The first region includes a resin layer disposed above the base material and including photosensitive resin and a metal film disposed above the resin layer and formed of a metal material. The surface of the first region is configured mainly by a first surface having a normal line in the thickness direction of the base material. The surface of the second region is configured mainly by a second surface inclined with respect to the first surface.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: March 23, 2021
    Inventor: Akio Konishi
  • Patent number: 10957727
    Abstract: An image sensor may include phase detection pixels that gather phase detection data. The phase detection pixels may be formed in phase detection pixel groups with two or more phase detection pixels covered by a single microlens. Each phase detection pixel may have an asymmetric angular response to incident light. Phase detection pixels may be covered by diffractive lenses. A diffractive lens may cover a phase detection pixel pair to improve angular separation between the pixels. A diffractive lens may partially cover a phase detection pixel in a phase detection pixel pair to shift the angular response and account for an off-axis chief ray angle of the phase detection pixel pair.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: March 23, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Byounghee Lee, Ulrich Boettiger
  • Patent number: 10945326
    Abstract: A configurable light sensor comprising an array of photocells. The light sensor measures ambient light reflected from a surface in area to be monitored. A lens directs the light onto the array of photocells. A microcontroller reads each individual photocell and processes the signals from the photocells according to one or more of the methods disclosed herein. The light sensor is configurable in that the area that monitored by the light sensor is customized to match the area lit by an associated light source. The configuring process defines an active area to be monitored, by determining which subset of photocells in the array, referred to as the active set of photocells, corresponds to the area being illuminated by the light fixture. The light sensor is subsequently able to monitor the defined active area and to report sensor output values based on measurements made from the photocells monitoring the active area.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: March 9, 2021
    Assignee: Sway sp. z o.o.
    Inventors: Robert Mieczyslaw Lubas, Szymon Slupik, Maciej Witalinski
  • Patent number: 10940788
    Abstract: Some embodiments provide a vehicle which includes a one or more sets of light emitter devices and sensor devices included in a common element assembly of the vehicle which includes a common window element via which the light emitter devices and sensor devices can interact with an external environment in which the vehicle is located. The sensor devices and light emitter devices can be communicatively coupled, and operation of the light emitter devices and sensor devices can be adjustably controlled to mitigate interference by the light emitter devices with sensor data representations generated by the sensor devices. The window element can include a reflection-mitigating layer which mitigates reflection of light beams emitted by one or more light emitter devices in an assembly towards one or more sensor elements of one or more sensor devices included in the same assembly.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: March 9, 2021
    Assignee: Apple Inc.
    Inventors: Ahmad Al-Dahle, Jean-Marie Bussat