Patents by Inventor Chengliang Qi

Chengliang Qi 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: 11630629
    Abstract: A multi-screen display control device is shown, which is linked to a host through a universal serial bus (USB) port to receive image data from the host, and uses a plurality of high-definition multimedia interface (HDMI) ports to output a plurality of HDMI sub-images to a plurality of screens. The multi-screen display control device has a USB hub that couples the USB port to a plurality of graphics processing units (GPUs), so that the GPUs generate the HDMI sub-images based on the image data transferred from the host via USB communication technology.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: April 18, 2023
    Assignee: SILICON MOTION, INC.
    Inventors: Chengliang Qi, Guangjun Lyu, Cong Li
  • Patent number: 11614998
    Abstract: A multi-screen display control device includes a plurality of graphics processing units (GPUs) and a watchdog chip. The GPUs transform image data that a host transfers to the multi-screen display control device through a universal serial bus (USB) interface into a plurality of high-definition multi-media interface (HDMI) sub-images to be displayed by a plurality of screens. The watchdog chip is coupled to the GPUs and, when any of the GPUs crashes, the watchdog chip outputs a reset signal to reset all of the GPUs.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: March 28, 2023
    Assignee: SILICON MOTION, INC.
    Inventors: Chengliang Qi, Guangjun Lyu, Cong Li
  • Publication number: 20220188193
    Abstract: A multi-screen display control device includes a plurality of graphics processing units (GPUs) and a watchdog chip. The GPUs transform image data that a host transfers to the multi-screen display control device through a universal serial bus (USB) interface into a plurality of high-definition multi-media interface (HDMI) sub-images to be displayed by a plurality of screens. The watchdog chip is coupled to the GPUs and, when any of the GPUs crashes, the watchdog chip outputs a reset signal to reset all of the GPUs.
    Type: Application
    Filed: March 19, 2021
    Publication date: June 16, 2022
    Inventors: Chengliang QI, Guangjun LYU, Cong LI
  • Publication number: 20220188056
    Abstract: A multi-screen display control device is shown, which is linked to a host through a universal serial bus (USB) port to receive image data from the host, and uses a plurality of high-definition multimedia interface (HDMI) ports to output a plurality of HDMI sub-images to a plurality of screens. The multi-screen display control device has a USB hub that couples the USB port to a plurality of graphics processing units (GPUs), so that the GPUs generate the HDMI sub-images based on the image data transferred from the host via USB communication technology.
    Type: Application
    Filed: March 19, 2021
    Publication date: June 16, 2022
    Inventors: Chengliang QI, Guangjun LYU, Cong LI
  • Patent number: 11169760
    Abstract: A multi-screen display control device is shown, in which a plurality of cards are connected in series through universal serial bus (USB) cables. Image data provided by a host is transferred through the USB cables. A first-stage card includes a plurality of first-stage graphics processing units (GPUs) and a first clock buffer. Based on the image data, the first-stage GPUs generate a plurality of high-definition multimedia interface (HDMI) sub-images to be displayed on a plurality of screens. Through the first clock buffer, a clock signal is replicated onto a plurality of paths to be transferred to the different first-stage GPUs and thereby identical clocks are applied to the different first-stage GPUs. Through the first clock buffer, the clock signal is further replicated onto a clock output path to be transferred to a clock output terminal of the first-stage card and thereby is coupled to a second-stage card.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: November 9, 2021
    Assignee: SILICON MOTION, INC.
    Inventors: Chengliang Qi, Guangjun Lyu, Cong Li