Patents by Inventor TSANG PING LIU

TSANG PING LIU 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: 9465393
    Abstract: A power management circuit adapted for a portable electronic device is provided. The portable electronic device receives a supply voltage from a USB power supplying port through a built-in USB charging port. The power management circuit includes a USB detection unit, a voltage detection unit, and a control unit. The USB detection unit determines the type of the USB power supplying port. The voltage detection unit detects the supply voltage. The control unit configures the power consumption of the portable electronic device based on the type of the USB power supplying port and the supply voltage. When the portable electronic device initiates booting process with the USB power supplying port being the Dedication Charging Port and the supply voltage being lowered than a threshold, the control unit reduces the power consumption of the portable electronic device to maintain the supply voltage above the threshold for booting stably.
    Type: Grant
    Filed: March 16, 2013
    Date of Patent: October 11, 2016
    Assignee: WISTRON CORP.
    Inventors: Ying-Tzu Chou, Chun-Ta Lee, Chih Chain Kung, Chia Zen Sheu, Tsang Ping Liu
  • Publication number: 20140111030
    Abstract: A power management circuit adapted for a portable electronic device is provided. The portable electronic device receives a supply voltage from a USB power supplying port through a built-in USB charging port. The power management circuit includes a USB detection unit, a voltage detection unit, and a control unit. The USB detection unit determines the type of the USB power supplying port. The voltage detection unit detects the supply voltage. The control unit configures the power consumption of the portable electronic device based on the type of the USB power supplying port and the supply voltage. When the portable electronic device initiates booting process with the USB power supplying port being the Dedication Charging Port and the supply voltage being lowered than a threshold, the control unit reduces the power consumption of the portable electronic device to maintain the supply voltage above the threshold for booting stably.
    Type: Application
    Filed: March 16, 2013
    Publication date: April 24, 2014
    Applicant: WISTRON CORP.
    Inventors: YING-TZU CHOU, CHUN-TA LEE, CHIH CHAIN KUNG, CHIA ZEN SHEU, TSANG PING LIU