Patents by Inventor Wenchao Hao

Wenchao Hao 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).

  • Publication number: 20230378939
    Abstract: A latch circuit includes a latch clock generator configured to generate a latched clock signal based on a clock signal and an enable signal, and an input latch coupled to the latch clock generator to receive the latched clock signal. The input latch is configured to generate a latched output signal based on the latched clock signal and an input signal. In response to the enable signal having a disabling logic level, the latch clock generator is configured to set a logic level of the latched clock signal to a corresponding disabling logic level, regardless of the clock signal. In response to the corresponding disabling logic level of the latched clock signal, the input latch is configured to hold a logic level of the latched output signal unchanged, regardless of the input signal having one or more logic level switchings, while the enable signal is having the disabling logic level.
    Type: Application
    Filed: July 31, 2023
    Publication date: November 23, 2023
    Inventors: XiuLi YANG, Kuan CHENG, He-Zhou WAN, Ching-Wei WU, Wenchao HAO
  • Patent number: 11811404
    Abstract: A latch circuit includes a latch clock generator configured to generate a latched clock signal based on a clock signal and a first enable signal, and an input latch coupled to the latch clock generator to receive the latched clock signal. The input latch is configured to generate a latched output signal based on the latched clock signal and an input signal. In response to the first enable signal having a disabling logic level, the latch clock generator is configured to set a logic level of the latched clock signal to a corresponding disabling logic level, regardless of the clock signal. The latch clock generator includes a first inverter configured to generate an inverted signal of the first enable signal, and a NAND gate coupled to the first inverter to receive the inverted signal of the first enable signal. The NAND gate is configured to generate the latched clock signal based on the clock signal and the inverted signal of the first enable signal.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: November 7, 2023
    Assignees: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., TSMC CHINA COMPANY, LIMITED
    Inventors: XiuLi Yang, Kuan Cheng, He-Zhou Wan, Ching-Wei Wu, Wenchao Hao
  • Publication number: 20220069807
    Abstract: A latch circuit includes a latch clock generator configured to generate a latched clock signal based on a clock signal and a first enable signal, and an input latch coupled to the latch clock generator to receive the latched clock signal. The input latch is configured to generate a latched output signal based on the latched clock signal and an input signal. In response to the first enable signal having a disabling logic level, the latch clock generator is configured to set a logic level of the latched clock signal to a corresponding disabling logic level, regardless of the clock signal. The latch clock generator includes a first inverter configured to generate an inverted signal of the first enable signal, and a NAND gate coupled to the first inverter to receive the inverted signal of the first enable signal. The NAND gate is configured to generate the latched clock signal based on the clock signal and the inverted signal of the first enable signal.
    Type: Application
    Filed: November 12, 2021
    Publication date: March 3, 2022
    Inventors: XiuLi YANG, Kuan CHENG, He-Zhou WAN, Ching-Wei WU, Wenchao HAO
  • Patent number: 11190169
    Abstract: A latch circuit includes a latch clock generator configured to generate a latched clock signal based on a clock signal and a first enable signal, and an input latch coupled to the latch clock generator to receive the latched clock signal. The input latch is configured to generate a latched output signal based on the latched clock signal and an input signal. In response to the first enable signal having a disabling logic level, the latch clock generator is configured to set a logic level of the latched clock signal to a corresponding disabling logic level, regardless of the clock signal.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: November 30, 2021
    Assignees: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., TSMC CHINA COMPANY, LIMIIED
    Inventors: XiuLi Yang, Kuan Cheng, He-Zhou Wan, Ching-Wei Wu, Wenchao Hao
  • Publication number: 20210203310
    Abstract: A latch circuit includes a latch clock generator configured to generate a latched clock signal based on a clock signal and a first enable signal, and an input latch coupled to the latch clock generator to receive the latched clock signal. The input latch is configured to generate a latched output signal based on the latched clock signal and an input signal. In response to the first enable signal having a disabling logic level, the latch clock generator is configured to set a logic level of the latched clock signal to a corresponding disabling logic level, regardless of the clock signal.
    Type: Application
    Filed: February 20, 2020
    Publication date: July 1, 2021
    Inventors: XiuLi YANG, Kuan CHENG, He-Zhou WAN, Ching-Wei WU, Wenchao HAO
  • Patent number: 10466828
    Abstract: A touch display panel, a driving method thereof and a display device. The touch display panel includes a plurality of driving electrodes and a plurality of sensing electrodes, a scanning signal transmitting unit, a first touch detection unit and a second touch detection unit; the scanning signal transmitting unit is configured to send scanning signals to the driving electrodes during the touch stage; the first touch detection unit is configured to collect signals through the sensing electrodes and determine an X coordinate and a Y coordinate of the touch position during a first preset period of time; the second touch detection unit is configured to collect signals through the driving electrodes and determine a Z coordinate of the touch position during a second preset period of time; and the first preset period of time and the second preset period of time are periods of time of the touch stage.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: November 5, 2019
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Wenchao Hao, Wei Sun, Dong Chen
  • Publication number: 20180150172
    Abstract: A touch display panel, a driving method thereof and a display device. The touch display panel includes a plurality of driving electrodes and a plurality of sensing electrodes, a scanning signal transmitting unit, a first touch detection unit and a second touch detection unit; the scanning signal transmitting unit is configured to send scanning signals to the driving electrodes during the touch stage; the first touch detection unit is configured to collect signals through the sensing electrodes and determine an X coordinate and a Y coordinate of the touch position during a first preset period of time; the second touch detection unit is configured to collect signals through the driving electrodes and determine a Z coordinate of the touch position during a second preset period of time; and the first preset period of time and the second preset period of time are periods of time of the touch stage.
    Type: Application
    Filed: November 8, 2016
    Publication date: May 31, 2018
    Applicants: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Wenchao Hao, Wei Sun, Dong Chen