Patents by Inventor Hsueh-Chao Chang

Hsueh-Chao Chang 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).

  • Patent number: 11907428
    Abstract: A touch device includes a touch panel, a circuit board, a vibrating unit and a pressure detection module. The touch panel includes two press regions. When different press regions of the touch panel are pressed by the user, the vibration feedback values generated by different press regions are different.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: February 20, 2024
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Chieh-Hung Hsieh, Wei-Chiang Huang, Chao-Wei Lee, Hsueh-Chao Chang, Sian-Yi Chiu
  • Publication number: 20240053827
    Abstract: A touch feedback correction method and a touch module using the touch feedback correction method are provided. In the touch feedback correction method, the coordinate values and the initial vibration values of plural press region on a touch panel of the touch module are detected. Consequently, a driving voltage calibration table is established. Then, a vibrating unit of the touch module is driven according to plural compensated voltage values of the driving voltage calibration table. Consequently, the plural press regions generate plural corrected vibration values, respectively.
    Type: Application
    Filed: August 31, 2022
    Publication date: February 15, 2024
    Inventors: Chieh-Hung Hsieh, Wei-Chiang Huang, Chao-Wei Lee, Chun-Pi Wang, Hsueh-Chao Chang, Sian-Yi Chiu
  • Patent number: 11726584
    Abstract: A touchpad module includes a base plate, a touch member, plural supporting elements, plural pressure sensing units and a feedback generation element. The base plate includes a plate body and plural elastic arms. The plural elastic arms are formed on the plate body. The plural supporting elements are arranged between the base plate and the touch member, and aligned with the corresponding elastic arms. While the touch member is moved toward the base plate, the plural supporting elements are move downwardly with the touch member to press the corresponding elastic arms. Consequently, the plural elastic arms are subjected to deformation. If the deformation amount of at least one of the plural elastic arms reaches a threshold value, the corresponding pressure sensing unit issues a pressure sensing signal. The feedback generation element generates a haptics feedback effect in response to the pressure sensing signal.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: August 15, 2023
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Wei-Chiang Huang, Chao-Wei Lee, Hsueh-Chao Chang, Chieh-Hung Hsieh, Sian-Yi Chiu
  • Patent number: 11640215
    Abstract: A touchpad module includes a touch member, a base plate, a supporting element and a switch. The touch member includes a first touch region and a second touch region. The base plate is located under the touch member. The supporting element is arranged between the touch member and the base plate. The supporting element is aligned with the second touch region. The switch is arranged between the touch member and the base plate. The switch is aligned with the second touch region. When a pressing force is applied to the second touch region of the touch member, the pressing force is transmitted to the base plate through the supporting element. Consequently, the base plate is subjected to deformation. The switch is triggered in response to the deformation of the base plate.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: May 2, 2023
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventors: Wei-Chiang Huang, Chao-Wei Lee, Hsueh-Chao Chang, Sian-Yi Chiu