Patents by Inventor David Brian Clarke

David Brian Clarke 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).

  • PLL adjustment to find and maintain resonant frequency of piezo electric finger print sensor
    Patent number: 8515135
    Abstract: Provided is a method for determining a resonant frequency of a biometric sensor. The method includes obtaining first pixel data from a first scan by scanning the biometric sensor with a first frequency. Second pixel data is obtained from a second scan by scanning the biometric sensor with a second frequency that is different from the first frequency. A respective first and second reference value is calculated from the first and the second pixel data. A highest reference value is determined from the first and the second reference values. The first or the second frequency is selected as the resonant frequency based on the highest reference value.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: August 20, 2013
    Assignee: Sonavation, Inc.
    Inventors: David Brian Clarke, Christian Liautaud
  • Method, apparatus and computer program product to determine a resonant frequency in a biometric sensor
    Publication number: 20090279746
    Abstract: Provided is a method for determining a resonant frequency of a biometric sensor. The method includes obtaining first pixel data from a first scan by scanning the biometric sensor with a first frequency. Second pixel data is obtained from a second scan by scanning the biometric sensor with a second frequency that is different from the first frequency. A respective first and second reference value is calculated from the first and the second pixel data. A highest reference value is determined from the first and the second reference values. The first or the second frequency is selected as the resonant frequency based on the highest reference value.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 12, 2009
    Applicant: Sonavation, Inc.
    Inventors: David Brian Clarke, Christian Liautaud
  • Dynamic optimization of a biometric sensor
    Publication number: 20090274343
    Abstract: Provided is a method for dynamic optimization of a biometric sensor. The method includes receiving image data having pixel values. The pixel values are processed to determine a bias. An offset adjustment is determined to mitigate the bias. The biometric sensor is adjusted with the offset adjustment.
    Type: Application
    Filed: May 5, 2008
    Publication date: November 5, 2009
    Applicant: Sonavation, Inc.
    Inventor: David Brian Clarke
  • Container
    Patent number: D1019394
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: March 26, 2024
    Assignee: BLUETRITON BRANDS, INC.
    Inventors: David Jerome Hutts, Christopher P. Nanos, Lauren Webber, Ryan Boudreaux, Peter Brian Clarke, Trond Erik Tollefsen