Patents Examined by Tony Ko
  • Patent number: 10644652
    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 with reconfigurable feedback resistors, which are adjustable based on the level of power, e.g. current, generated by the photodetector, and variable load resistors, which are adjustable based on the change in impedance caused by the change in the feedback resistor.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: May 5, 2020
    Assignee: Elenion Technologies, LLC
    Inventors: Ariel Leonardo Vera Villarroel, Abdelrahman Ahmed, Alexander Rylyakov
  • Patent number: 10636918
    Abstract: A single photon detection circuit is described that includes a germanium photodiode that is configured with zero voltage bias to avoid dark current output when no photon input is present and also is configured to respond to a single photon input by generating a photovoltaic output voltage. A single electron bipolar avalanche transistor (SEBAT) has a base emitter junction connected in parallel with the germanium photodiode and is configured so that the photovoltaic output voltage triggers an avalanche collector current output.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: April 28, 2020
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Steven J. Spector, Robin Mark Adrian Dawson, Michael G. Moebius, Benjamin F. Lane
  • Patent number: 10634813
    Abstract: Embodiments are directed towards a safety system that can be used with a high-flux power beam, such as in wireless power transmission. The system includes a transmitter that generates and transmits a power beam and a receiver that receives the power beam. A plurality of sensors is configured to independently detect if an object is near, impeding, or about to impede (i.e., impinging) the power beam. Each of the plurality of sensors is configured to detect the object at different distances between the transmitter and the receiver. A controller triggers the transmitter to stop generating the power beam when any one or more of the plurality of sensors detects the object or a combination of the plurality of sensors detects the object. The controller triggers the transmitter to re-generate and transmit the power beam when each of the plurality of sensors fails to detect the object.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: April 28, 2020
    Assignee: LASERMOTIVE, INC.
    Inventors: Jordin T. Kare, Thomas J. Nugent, Jr., David Bashford, Carsten Casey Erickson, Thomas W. Bashford
  • Patent number: 10627263
    Abstract: The invention relates to a sensor device and method for detecting measurement data relating to the absolute position of a linearly or rotationally moveable body, comprising an optical sensor system, wherein the optical sensor system uses exclusively zero-order rejections for the position measuring, and a magnetic sensor system which emits a second sensor output signal depending on the position to be determined of the moveable body, wherein the gauge of the optical sensor system and the gauge of the magnetic sensor system are integrated in a common gauge body, and a computer unit which is provided to obtain the first sensor output signal and the second sensor output signal and to generate a common sensor output signal from the first sensor output signal and the second sensor output signal, wherein the current period of the second sensor system can be deduced from the first sensor output signal at every time, in order to calculate clear absolute position information based on the first and second sensor output s
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: April 21, 2020
    Assignee: PHYSIK INSTRUMENTE (PI) GMBH & CO. KG
    Inventors: Axel Grabowski, Carolin Walenda
  • Patent number: 10629642
    Abstract: A stacked image sensor includes a first semiconductor die and a second semiconductor die. The first semiconductor die includes a pixel array of rows and columns of pixels, a first column interlayer-connection unit extending in the row direction and disposed adjacent the top or bottom of the pixel array and column routing wires extending in a diagonal direction and connecting the pixel columns and the first column interlayer-connection unit. The second semiconductor die is stacked with the first semiconductor die. The second semiconductor die includes a second column interlayer-connection unit extending in the row direction and disposed at a location corresponding to the first column interlayer-connection unit and connected to the first column interlayer-connection unit, and a column control circuit connected to the second column interlayer-connection unit.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: April 21, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hiroyuki Sugihara
  • Patent number: 10627539
    Abstract: The present invention relates to an optoelectronic sensor system for detecting objects in a monitored zone having a light transmitter for transmitting light into the monitored zone along a transmitted light path, having a light receiver for receiving received light from the monitored zone that is remitted along a received light path in the direction of the light receiver from an object to be detected in the monitored zone or a reflector bounding the monitored zone, and having an objective arrangement arranged in front of the light transmitter and the light receiver. The transmitted light path and the received light path run spaced apart from one another at least in part sections facing the light transmitter and the light receiver respectively.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: April 21, 2020
    Assignee: SICK AG
    Inventors: Roland Albrecht, Johannes Eble, Eva-Maria Kriener
  • Patent number: 10627090
    Abstract: A light sensor assembly includes a sensor connector having a housing including a top and a bottom with power contact channels in the bottom of the housing. The sensor connector includes a circuit board supported by the housing at the top having a sensor component electrically connected to the circuit board sensing an environmental characteristic exterior of the sensor connector. The sensor connector includes power contacts received in corresponding contact channels and extending from the bottom for electrical connection with receptacle power contacts of the receptacle connector. The power contacts include a neutral power contact, a line power contact and a load power contact, where the line power contact and the load power contact are integral as a unitary contact body forming a monolithic line-load power contact.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: April 21, 2020
    Assignee: TE CONNECTIVITY CORPORATION
    Inventors: Matthew Edward Mostoller, Christopher George Daily
  • Patent number: 10620418
    Abstract: An optical pickup device according to an embodiment of the present invention includes: a light source that outputs a light beam; an irradiation optical system that projects onto a measurement target the light beam outputted from the light source; an imaging optical system that converges and images the light beam reflected by the measurement target; a light receiving part that receives the light beam imaged by the imaging optical system; and a peak separation part that when the light beams reflected by a first surface and a second surface of the measurement target are assumed to be a first reflected beam and a second reflected beam, separates peaks of light intensity of the first and second reflected beams with respect to a distance between the irradiation optical system and the measurement target in the light receiving part.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: April 14, 2020
    Assignee: MITUTOYO CORPORATION
    Inventor: Kazuki Kitagawa
  • Patent number: 10612974
    Abstract: A circuit includes an input capacitor that stores charge based on a current received from a photodetector during a bias phase of the photodetector. The stored charge on the input capacitor is sampled during the sampling phase to determine an amount of light captured by the photodetector. A bias controller supplies a pulsed-bias voltage to the photodetector to generate the current from the photodetector. The bias controller controls the current to a current level below a predetermined current threshold via the pulsed-bias voltage before biasing of the detector and subsequent sampling of the stored charge on the input capacitor is initiated to mitigate 1/F noise in the photodetector.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: April 7, 2020
    Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATION
    Inventors: Sung-Shik Yoo, Christopher L. Kauffman, Phillip R. Minarik
  • Patent number: 10615197
    Abstract: An apparatus comprising at least one pair of a first inner and second outer photodetector, each photodetector comprising a channel member, respective source and drain electrodes configured to enable a flow of electrical current through the channel member between the source and drain electrodes, and a plurality of quantum dots configured to generate electron-hole pairs on exposure to incident electromagnetic radiation to produce a detectable change in the electrical current flowing through the channel member. The first inner and second outer photodetectors are configured to generate electron-hole pairs which produce an increase and decrease in electrical current through the channel members. The first inner and the second outer photodetectors share a common channel member, which is partitioned by one or more of the respective source and drain electrodes respectively extending in two dimensions such that the first inner photodetector is defined within the second outer photodetector.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: April 7, 2020
    Assignee: Nokia Technologies Oy
    Inventors: Sami Kallioinen, Martti Voutilainen
  • Patent number: 10609794
    Abstract: A method of generating a lighting effect based on metadata of an audio stream, the method comprising steps of: extracting metadata items from the audio stream; retrieving a first set of one or more images based on the metadata items; controlling a light source to generate a lighting effect based on said first set of one or more images.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: March 31, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Dzmitry Viktorovich Aliakseyeu, Berent Willem Meerbeek, Bartel Marinus Van De Sluis
  • Patent number: 10605655
    Abstract: Provided are a photon detection device and a photon detection method being practical, capable of performing photon detection in which no afterpulse is generated and generation of a dark count is suppressed, and capable of obtaining a high counting rate with low jitter. The photon detection device of the present invention includes: a photon detection section having a long plate-shaped superconducting stripline whose plate surface is a photon detection surface, and a bias current supply section supplying a bias current to the superconducting stripline; and a single flux quantum comparator circuit capable of detecting magnetic flux scattered from the superconducting stripline upon photon detection.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: March 31, 2020
    Assignee: National Insititute of Advanced Industrial Science & Technology
    Inventors: Nobuyuki Zen, Yasunori Mawatari, Go Fujii, Nobuyuki Yoshikawa
  • Patent number: 10606204
    Abstract: An optical sensor includes a light source; and an optical detector detecting intensity of light that is reflected by a recording medium, the light from the light source and irradiated onto the recording medium. Further, when an incident angle of the light incident to the recording medium from the light source relative to a normal line of the recording medium is given as ?1, a formula 75°??1?85° is satisfied.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: March 31, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Toshihiro Ishii, Yoshihiro Oba, Fumikazu Hoshi, Satoru Sugawara
  • Patent number: 10598545
    Abstract: An adjustable housing for a light sensor includes a biasing spring and an adjustment screw or cam shaft or other rotary means to adjust the sensor against the spring biasing force. In some embodiments, a detent mechanism can retain the sensor in a desired position and provide an audible click during adjustment. The housing can have a free-floating wall such that when tightening or locking the assembly in place, the wall does not deform and therefore does not affect the sensor alignment.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 24, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Jude Royston Jonas, Dragan Pajevic, Craig Ropi
  • Patent number: 10598546
    Abstract: Two separate schemes are used for detecting light intensity in low light conditions and high light conditions. In high light conditions, two threshold voltages are set and the time between the crossing of a sensor voltage at the two threshold voltages is measured to determine the light intensity in the high light conditions. In low light conditions, a comparator is used to compare the voltage level of the sensor voltage relative to a reference voltage that increase over time. The time when the reference voltage reaches the sensor voltage level is detected to determine the light intensity in the low light conditions.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: March 24, 2020
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventor: Xinqiao Liu
  • Patent number: 10594402
    Abstract: An optically enabled multi-chip module has an optical engine transceiver and a host system chip. The optical engine transceiver has an optical engine front-end and an optical engine macro. The optical engine front-end has multiple laser diodes, laser driver circuitry electrically interfaced with each of the laser diodes, multiple photodiodes, amplifier circuitry electrically interfaced with each of the photodiodes, and at least one optical element optically positioned between the laser diodes and at least one optical fiber and between the photodiodes and the at least one optical fiber. The at least one optical element optically interfaces the laser diodes and photodiodes with the optical fiber. The optical engine macro is both electrically interfaced with and physically segregated from the optical engine front-end. The optical engine macro provides a subset of optical transceiver functionality to the optical engine front-end. The host system chip is electrically interfaced with the optical engine transceiver.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: March 17, 2020
    Assignee: Finisar Corporation
    Inventors: Frank J. Flens, Daniel Mahgerefteh, The' Linh Nguyen, Jimmy Alan Tatum
  • Patent number: 10578607
    Abstract: A method of screening, isolating and purifying rare cells includes obtaining cell groups with rare cells from a sample, removing cells not to be screened from the cell groups, and drawing the remaining cells as a cell suspension sample. An introduction device is activated to load the cell suspension sample onto an optically-induced dielectrophoresis chip including a cell isolation zone having a division arrangement wherein at least one optical pattern is configured on the cell isolation zone for screening, isolating and purifying the rare cells. The at least one optical pattern is configured to migrate, rotate or both. The at least one optical pattern is activated to attract the rare cells into a collection tank on the chip, and a liquid drawing device is activated to draw the rare cells out of the collection tank, thereby obtaining purified rare cells from the sample.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: March 3, 2020
    Assignee: Chang Gung University
    Inventors: Min-Hsien Wu, Wen-Pin Chou, Tzu-Keng Chiu, Po-Yu Chu
  • Patent number: 10574921
    Abstract: An imaging element includes a laminated plurality of photoelectric conversion units, and an input light reflecting unit which reflects light beams input from the plurality of photoelectric conversion units toward directions of the plurality of photoelectric conversion units.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: February 25, 2020
    Assignee: Sony Corporation
    Inventor: Takahiro Fukuhara
  • Patent number: 10571310
    Abstract: In a position-measuring device for determining the position of a first object with respect to a second object that is displaceable relative to the first object, a measuring standard is connected to the first object and includes at least one periodic scale grating, which is arranged as a transmission grating and has a first periodicity. A scanning unit is connected to the second object and includes at least one light source, at least one periodic scanning grating, which has a second periodicity, and a detector system, which includes detector regions that are sensitive to radiation and are periodically disposed at a third periodicity in a detection plane. The bundles of rays emitted by the light source first impinge upon the scale grating and then pass through the scanning grating.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: February 25, 2020
    Assignee: DR. JOHANNES HEIDENHAIN GMBH
    Inventors: Wolfgang Holzapfel, Christoph Lingk, Johannes Trautner
  • Patent number: 10568492
    Abstract: [Object] To control the focal position of an optical system with a more favorable aspect, in accordance with the band targeted for observation. [Solution] A medical observation device includes: a computation section that applies, to an imaging signal corresponding to each of a plurality of different spectral components based on a light receiving result regarding observation target light from a subject in vivo from an image sensor, weights of the plurality of spectral components corresponding to a band targeted for observation from among bands in the observation target light, and computes an evaluation value indicating a degree of being in-focus on a basis of the imaging signal to which the weights are applied; and a control section that controls, on a basis of the evaluation value, a position of at least one optical member in an optical system that forms an image of the observation target light from the subject onto the image sensor, and thereby controls a focal position of the optical system.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: February 25, 2020
    Assignees: SONY CORPORATION, SONY OLYMPUS MEDICAL SOLUTIONS INC.
    Inventors: Sakae Okazaki, Toshio Katayama, Hirotaka Hirano, Takahiro Yamamoto