Patents by Inventor Yu Qiao Qu

Yu Qiao Qu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Capacitive DOE integrity monitor
    Patent number: 11002702
    Abstract: An optical module includes first and second transparent substrates and a spacer between the first and second transparent substrates, holding the first transparent substrate in proximity to the second transparent substrate, with first and second diffractive optical elements (DOEs) on respective faces of the first and second transparent substrates. At least first and second capacitance electrodes are disposed respectively on the first and second transparent substrates in proximity to the first and second DOEs. Circuitry is coupled to measure changes in a capacitance between at least the first and second capacitance electrodes.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 11, 2021
    Assignee: APPLE INC.
    Inventors: Hannah D Noble, Kevin A Sawyer, Martin B Adamcyk, Yazan Z Alnahhas, Yu Qiao Qu, Moshe Kriman, Adar Magen
  • Capacitive DOE integrity monitor
    Publication number: 20190162691
    Abstract: An optical module includes first and second transparent substrates and a spacer between the first and second transparent substrates, holding the first transparent substrate in proximity to the second transparent substrate, with first and second diffractive optical elements (DOEs) on respective faces of the first and second transparent substrates. At least first and second capacitance electrodes are disposed respectively on the first and second transparent substrates in proximity to the first and second DOEs. Circuitry is coupled to measure changes in a capacitance between at least the first and second capacitance electrodes.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 30, 2019
    Inventors: Hannah D. Noble, Kevin A. Sawyer, Martin B. Adamcyk, Yazan Z. Alnahhas, Yu Qiao Qu, Moshe Kriman, Adar Magen
  • Capacitive DOE integrity monitor
    Patent number: 10302585
    Abstract: An optical module includes first and second transparent substrates and a spacer between the first and second transparent substrates, holding the first transparent substrate in proximity to the second transparent substrate, with first and second diffractive optical elements (DOEs) on respective faces of the first and second transparent substrates. At least first and second capacitance electrodes are disposed respectively on the first and second transparent substrates in proximity to the first and second DOEs. Circuitry is coupled to measure changes in a capacitance between at least the first and second capacitance electrodes.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: May 28, 2019
    Assignee: APPLE INC.
    Inventors: Hannah D. Noble, Kevin A. Sawyer, Martin B. Adamcyk, Yazan Z. Alnahhas, Yu Qiao Qu, Moshe Kriman, Adar Magen
  • CAPACITIVE DOE INTEGRITY MONITOR
    Publication number: 20170199144
    Abstract: An optical module includes first and second transparent substrates and a spacer between the first and second transparent substrates, holding the first transparent substrate in proximity to the second transparent substrate, with first and second diffractive optical elements (DOEs) on respective faces of the first and second transparent substrates. At least first and second capacitance electrodes are disposed respectively on the first and second transparent substrates in proximity to the first and second DOEs. Circuitry is coupled to measure changes in a capacitance between at least the first and second capacitance electrodes.
    Type: Application
    Filed: September 22, 2016
    Publication date: July 13, 2017
    Inventors: Hannah D. Noble, Kevin A. Sawyer, Martin B. Adamcyk, Yazan Z. Alnahhas, Yu Qiao Qu, Moshe Kriman, Adar Magen