Patents by Inventor Quy CHAU

Quy CHAU 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).

  • Publication number: 20210019487
    Abstract: An ultrasonic sensor includes a two-dimensional array of ultrasonic transducers, wherein the two-dimensional array of ultrasonic transducers is substantially flat, a contact layer having a non-uniform thickness overlying the two-dimensional array of ultrasonic transducers, and an array controller configured to control activation of ultrasonic transducers during an imaging operation for imaging a plurality of pixels at a plurality of positions within the two-dimensional array of ultrasonic transducers.
    Type: Application
    Filed: January 13, 2020
    Publication date: January 21, 2021
    Applicant: InvenSense, Inc.
    Inventors: Quy CHAU, Mei-Lin CHAN, Xiaoyue JIANG
  • Publication number: 20210019488
    Abstract: An ultrasonic sensor includes a two-dimensional array of ultrasonic transducers, wherein the two-dimensional array of ultrasonic transducers is substantially flat, a contact layer having a non-uniform thickness overlying the two-dimensional array of ultrasonic transducers, and an array controller configured to control activation of ultrasonic transducers during an imaging operation. During the imaging operation, the array controller is configured to control a transmission frequency of activated ultrasonic transducers during the imaging operation, wherein a plurality of transmission frequencies are used during the imaging operation to account for an impact of an interference pattern caused by the non-uniform thickness of the contact layer, and is configured to capture at least one fingerprint image using the plurality of transmission frequencies.
    Type: Application
    Filed: January 13, 2020
    Publication date: January 21, 2021
    Applicant: InvenSense, Inc.
    Inventors: Quy CHAU, Mei-Lin CHAN