Patents by Inventor Yiu Cho Yuen

Yiu Cho Yuen 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).

  • Touch control human machine interface
    Patent number: 11489523
    Abstract: A touch control human-machine interface for use in controlling operation of a machine, said interface including: an interface housing; a cover plate disposed on an outer-surface of the housing, said cover plate having a first electrically-conductive portion configured for touch interaction by a user's finger; a circuit assembly disposed within the housing, said circuit assembly including a circuit board having a second electrically-conductive portion and a light illumination module operably-connected thereto; a spacer element disposed between and separating the first conductive portion from the second conductive portion such that the first conductive portion, the second conductive portion and the spacer element are configured to form a capacitor device that is operably-connected with the circuit assembly; said first electrically-conductive portion being configured for deformation by the user's finger so as to cause a change in capacitance across the capacitor device, and whereby responsive to said change in c
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: November 1, 2022
    Assignees: DEFOND ELECTECH CO., LTD., DEFOND COMPONENTS LIMITED
    Inventors: Cheng Chen Nieh, Kai Kei Poon, Yiu Cho Yuen
  • TOUCH CONTROL HUMAN MACHINE INTERFACE
    Publication number: 20200228118
    Abstract: A touch control human-machine interface for use in controlling operation of a machine, said interface including: an interface housing; a cover plate disposed on an outer-surface of the housing, said cover plate having a first electrically-conductive portion configured for touch interaction by a user's finger; a circuit assembly disposed within the housing, said circuit assembly including a circuit board having a second electrically-conductive portion and a light illumination module operably-connected thereto; a spacer element disposed between and separating the first conductive portion from the second conductive portion such that the first conductive portion, the second conductive portion and the spacer element are configured to form a capacitor device that is operably-connected with the circuit assembly; said first electrically-conductive portion being configured for deformation by the user's finger so as to cause a change in capacitance across the capacitor device, and whereby responsive to said change in c
    Type: Application
    Filed: November 13, 2019
    Publication date: July 16, 2020
    Inventors: CHENG CHEN NIEH, Kai Kei Poon, Yiu Cho Yuen