Patents by Inventor Elwin Yui Hang HA

Elwin Yui Hang HA 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).

  • Two-way communication between an electronic card and a touchscreen device
    Patent number: 10551967
    Abstract: Systems and methods of bi-directional communication between an electronic card and a touchscreen device is described. The method may include modulating an electrostatic field of the touchscreen device using touch communication channels; receiving visible light signals from the touchscreen device in response to the modified electrostatic field via one or more optical communication channels; ranking, by the electronic card, the optical communication channels according to the signal quality received from each optical communication channel; selecting at least one optical communication channel as preferred optical communication channel based on the ranking; and using the preferred optical communication channel and the touch communication channels for subsequent bi-directional communication.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: February 4, 2020
    Inventor: Elwin Yui Hang Ha
  • TWO-WAY COMMUNICATION BETWEEN AN ELECTRONIC CARD AND A TOUCHSCREEN DEVICE
    Publication number: 20190278457
    Abstract: Systems and methods of bi-directional communication between an electronic card and a touchscreen device is described. The method may include modulating an electrostatic field of the touchscreen device using touch communication channels; receiving visible light signals from the touchscreen device in response to the modified electrostatic field via one or more optical communication channels; ranking, by the electronic card, the optical communication channels according to the signal quality received from each optical communication channel; selecting at least one optical communication channel as preferred optical communication channel based on the ranking; and using the preferred optical communication channel and the touch communication channels for subsequent bi-directional communication.
    Type: Application
    Filed: April 29, 2019
    Publication date: September 12, 2019
    Inventor: Elwin Yui Hang HA