Patents by Inventor Zhengyuan Hu

Zhengyuan Hu 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: 11977700
    Abstract: A touch detection drive circuit in an electronic device inputs a touch excitation signal to a touch electrode, and receives a detection signal of the touch electrode. An isolation power supply circuit: receives the touch excitation signal and a primary power supply voltage; based on the touch excitation signal in a non-touch detection phase, short-circuits a first reference ground and a second reference ground, stores the primary power supply voltage, and transmits the primary power supply voltage to the touch detection drive circuit; and in a touch detection phase, disconnects the first reference ground from the second reference ground and discharges to the touch detection drive circuit.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: May 7, 2024
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhengyuan Hu, Fengxin Wang, Jian Shen, Nanxue Gong
  • Publication number: 20240019957
    Abstract: A touch detection drive circuit in an electronic device inputs a touch excitation signal to a touch electrode, and receives a detection signal of the touch electrode. An isolation power supply circuit: receives the touch excitation signal and a primary power supply voltage; based on the touch excitation signal in a non-touch detection phase, short-circuits a first reference ground and a second reference ground, stores the primary power supply voltage, and transmits the primary power supply voltage to the touch detection drive circuit; and in a touch detection phase, disconnects the first reference ground from the second reference ground and discharges to the touch detection drive circuit.
    Type: Application
    Filed: September 14, 2021
    Publication date: January 18, 2024
    Inventors: Zhengyuan Hu, Fengxin Wang, Jian Shen, Nanxue Gong
  • Publication number: 20230367421
    Abstract: A touch detection drive circuit in an electronic device inputs a touch excitation signal to a touch electrode, and receives a detection signal of the touch electrode. An isolation power supply circuit receives the touch excitation signal and a primary power supply voltage; based on the touch excitation signal in a non-touch detection phase, short-circuits a first reference ground and a second reference ground, stores the primary power supply voltage, and transmits the primary power supply voltage to the touch detection drive circuit; and in a touch detection phase, disconnects the first reference ground from the second reference ground and discharges to the touch detection drive circuit.
    Type: Application
    Filed: September 14, 2021
    Publication date: November 16, 2023
    Inventors: Zhengyuan Hu, Fengxin Wang, Jiacong Zhang
  • Publication number: 20230004406
    Abstract: An electronic device includes a first graphics processing subsystem, a second graphics processing subsystem, and a screen. The first graphics processing subsystem includes a first application processor, a first graphics processing unit, and a first memory. The second graphics processing subsystem includes a second application processor, a second graphics processing unit, and a second memory. The first graphics processing unit renders a first GUI. The screen displays the first GUI. The second graphics processing unit renders a second GUI, and the second GUI and the first GUI belong to different interface types. The screen displays the second GUI. A display processing method applied to the electronic device is also provided, wherein the first graphics processing subsystem can be switched to the second graphics processing subsystem based on complexity of a to-be-displayed GUI.
    Type: Application
    Filed: November 17, 2020
    Publication date: January 5, 2023
    Inventors: Zhengyuan Hu, Bing Li, Wen Liu, Shuqiang Gong, Zichen Xie