Patents by Inventor Chin-Kang CHENG

Chin-Kang CHENG 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: 11940060
    Abstract: The present invention provides a seal ring structure, which comprises a seal ring member. The seal ring member includes a first ring opening on one side and a second ring opening on the other. A periphery of the first ring opening includes a plurality of leak grooves. When the seal ring member and the valve ball squeeze each other, the plurality of leak grooves can reduce the torque required to rotate the valve ball. A leak-groove length of the plurality of leak grooves is smaller than a seal-ring-member length of the seal ring member. The plurality of leak grooves do not penetrate the seal ring member for avoiding leakage of fluid.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: March 26, 2024
    Assignee: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE
    Inventors: Ching-An Lin, Chin-Kang Chen, Chia-Ho Cheng
  • Patent number: 8860647
    Abstract: A liquid crystal display apparatus includes a liquid crystal panel and a panel driving device. The panel driving device includes a timing control circuit, a gate driving circuit, and a source driving circuit. The source driving circuit includes a low voltage differential signal (LVDS) receiver, a driving voltage generator, and a controller. The LVDS receiver includes a plurality of receive circuits and a power saving control circuit. Each of the receive circuit performs level conversion upon a data LVDS to generate a logic signal, and operates in a selected one of a normal energy consuming mode and a power saving mode. The power saving control circuit controls the receive circuits to operate in the power saving mode when the power saving control circuit does not receive a power adjustment signal from the controller.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: October 14, 2014
    Assignee: ILI Technology Corporation
    Inventors: Sung-Yau Yeh, Chin-Kang Cheng, Bing-Hung Chen
  • Publication number: 20130293451
    Abstract: A liquid crystal display apparatus includes a liquid crystal panel and a panel driving device. The panel driving device includes a timing control circuit, a gate driving circuit, and a source driving circuit. The source driving circuit includes a low voltage differential signal (LVDS) receiver, a driving voltage generator, and a controller. The LVDS receiver includes a plurality of receive circuits and a power saving control circuit. Each of the receive circuit performs level conversion upon a data LVDS to generate a logic signal, and operates in a selected one of a normal energy consuming mode and a power saving mode. The power saving control circuit controls the receive circuits to operate in the power saving mode when the power saving control circuit does not receive a power adjustment signal from the controller.
    Type: Application
    Filed: March 13, 2013
    Publication date: November 7, 2013
    Applicant: ILI TECHNOLOGY CORPORATION
    Inventors: Sung-Yau YEH, Chin-Kang CHENG, Bing-Hung CHEN