Patents by Inventor Kai-Cheng Lee

Kai-Cheng Lee 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: 10678317
    Abstract: A power supply control device, applied for an electronic device is disclosed. The electronic device includes a case, wherein a user holds the case to operate the electronic device. The power supply control device includes a sensing module, including a first sensing component for sensing whether the user is touching a first sensing area of the case to generate a first determination signal; and a second sensing component for sensing whether the user is touching a second sensing area of the case to generate a second determination signal; and a power supply module, including a first relay, for connecting or disconnecting a system power end of the electronic device from a power supply terminal according to the first determination signal; and a second relay, for connecting or disconnecting a system ground end of the electronic device from a ground terminal according to the second determination signal.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: June 9, 2020
    Assignee: Wistron Corporation
    Inventors: Mei-Ling Shang, Wei Liang Liao, Kai-Cheng Lee, Ke Yang, Jia Sheng Huang, Hua Yue Li
  • Patent number: 10642334
    Abstract: A computer device includes a microprocessor, a voltage converter circuit converting a first voltage of a system power into a second voltage, a control circuit controlling supply of the second voltage and a detection circuit detecting whether power abnormality at the peripheral device has occurred. When confirming that the system power is being supplied normally, the microprocessor generates a first enable signal to enable the voltage converter circuit. When confirming that the voltage converter circuit functions normally, the microprocessor generates a second enable signal to enable the detection circuit. The detection circuit generates a first detection signal according to detection result for the microprocessor to determine whether to supply the second voltage to the peripheral device. When the first detection signal indicates that power abnormality has not occurred, the microprocessor generates a third enable signal to enable the control circuit to supply the second voltage to the peripheral device.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: May 5, 2020
    Assignee: WISTRON CORP.
    Inventors: Ke Yang, Kai Cheng Lee, Jia Sheng Huang, Mei Ling Shang, Wei Liang Liao
  • Patent number: 10559973
    Abstract: An electronic device and a power supply method thereof are provided. The electronic device includes a control circuit, a detachable power supply device, and an auxiliary power supply device. The control circuit is coupled to a power supply terminal coupled to a system load. When the detachable power supply device is assembled to the electronic device, the detachable power supply device is coupled to the control circuit and supplies power to the system load. The auxiliary power supply device is coupled to the control circuit. When the electronic device is not turned on and the detachable power supply is removed from the electronic device, the electronic device is not turned on by the auxiliary power supply device. When the electronic device is turned on and the detachable power supply is removed from the electronic device, power is continuously supplied to the system load by the auxiliary power supply device.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: February 11, 2020
    Assignee: Wistron Corporation
    Inventors: Cheng-Wei Huang, Kuang-Wei Wang, Kai-Cheng Lee, Yen-Hsiang Wang
  • Publication number: 20190369690
    Abstract: A power supply control device, applied for an electronic device is disclosed. The electronic device includes a case, wherein a user holds the case to operate the electronic device. The power supply control device includes a sensing module, including a first sensing component for sensing whether the user is touching a first sensing area of the case to generate a first determination signal; and a second sensing component for sensing whether the user is touching a second sensing area of the case to generate a second determination signal; and a power supply module, including a first relay, for connecting or disconnecting a system power end of the electronic device from a power supply terminal according to the first determination signal; and a second relay, for connecting or disconnecting a system ground end of the electronic device from a ground terminal according to the second determination signal.
    Type: Application
    Filed: August 2, 2018
    Publication date: December 5, 2019
    Inventors: MEI-LING SHANG, WEI LIANG LIAO, Kai-Cheng Lee, KE YANG, JIA SHENG HUANG, Hua Yue LI
  • Publication number: 20190146571
    Abstract: A computer device includes a microprocessor, a voltage converter circuit converting a first voltage of a system power into a second voltage, a control circuit controlling supply of the second voltage and a detection circuit detecting whether power abnormality at the peripheral device has occurred. When confirming that the system power is being supplied normally, the microprocessor generates a first enable signal to enable the voltage converter circuit. When confirming that the voltage converter circuit functions normally, the microprocessor generates a second enable signal to enable the detection circuit. The detection circuit generates a first detection signal according to detection result for the microprocessor to determine whether to supply the second voltage to the peripheral device. When the first detection signal indicates that power abnormality has not occurred, the microprocessor generates a third enable signal to enable the control circuit to supply the second voltage to the peripheral device.
    Type: Application
    Filed: April 3, 2018
    Publication date: May 16, 2019
    Inventors: Ke YANG, Kai Cheng LEE, Jia Sheng HUANG, Mei Ling SHANG, Wei Liang LIAO
  • Publication number: 20180090985
    Abstract: An electronic device and a power supply method thereof are provided. The electronic device includes a control circuit, a detachable power supply device, and an auxiliary power supply device. The control circuit is coupled to a power supply terminal coupled to a system load. When the detachable power supply device is assembled to the electronic device, the detachable power supply device is coupled to the control circuit and supplies power to the system load. The auxiliary power supply device is coupled to the control circuit. When the electronic device is not turned on and the detachable power supply is removed from the electronic device, the electronic device is not turned on by the auxiliary power supply device. When the electronic device is turned on and the detachable power supply is removed from the electronic device, power is continuously supplied to the system load by the auxiliary power supply device.
    Type: Application
    Filed: January 9, 2017
    Publication date: March 29, 2018
    Applicant: Wistron Corporation
    Inventors: Cheng-Wei Huang, Kuang-Wei Wang, Kai-Cheng Lee, Yen-Hsiang Wang