Patents by Inventor Huygens Jefferson Do

Huygens Jefferson Do 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).

  • SECURE TOUCHSCREEN DEVICE
    Publication number: 20200118105
    Abstract: Secure touchscreen devices are disclosed. In one embodiment, a secure touchscreen assembly may include a first patterned conductive layer comprising a first touch sensing grid and a first tamper sensing grid, the first tamper sensing grid disposed in areas of the first conductive layer where the first touch sensing grid is not present and is not in physical contact with the first touch sensing grid, and tamper sensing circuitry coupled to the first tamper sensing grid that detects a tamper by detecting change in conductivity in the first tamper sensing grid.
    Type: Application
    Filed: December 16, 2019
    Publication date: April 16, 2020
    Inventors: Huygens Jefferson DO, Ricardo E. ESPINOZA-IBARRA, John Henry BARROWMAN
  • Secure touchscreen device
    Patent number: 10558965
    Abstract: Secure touchscreen devices are disclosed. In one embodiment, a secure touchscreen assembly may include a first patterned conductive layer comprising a first touch sensing grid and a first tamper sensing grid, the first tamper sensing grid disposed in areas of the first conductive layer where the first touch sensing grid is not present and is not in physical contact with the first touch sensing grid, and tamper sensing circuitry coupled to the first tamper sensing grid that detects a tamper by detecting change in conductivity in the first tamper sensing grid.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: February 11, 2020
    Assignee: VeriFone, Inc.
    Inventors: Huygens Jefferson Do, Ricardo E. Espinoza-Ibarra, John Henry Barrowman
  • SECURE TOUCHSCREEN DEVICE
    Publication number: 20180308083
    Abstract: Secure touchscreen devices are disclosed. In one embodiment, a secure touchscreen assembly may include a first patterned conductive layer comprising a first touch sensing grid and a first tamper sensing grid, the first tamper sensing grid disposed in areas of the first conductive layer where the first touch sensing grid is not present and is not in physical contact with the first touch sensing grid, and tamper sensing circuitry coupled to the first tamper sensing grid that detects a tamper by detecting change in conductivity in the first tamper sensing grid.
    Type: Application
    Filed: April 25, 2017
    Publication date: October 25, 2018
    Inventors: Huygens Jefferson Do, Ricardo E. Espinoza-lbarra, John Henry Barrowman