Patents by Inventor Huan-Wei LIU

Huan-Wei 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).

  • Low dropout regulator circuits, input/output device, and methods for operating a low dropout regulator
    Patent number: 11966241
    Abstract: A circuit includes a voltage divider circuit configured to generate a feedback voltage according to an output voltage, an operational amplifier configured to output a driving signal according to the feedback voltage and a reference voltage and a pass gate circuit including multiple current paths. The current paths are controlled by the driving signal and connected in parallel between the voltage divider circuit and a power reference node.
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: April 23, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Huan-Neng Chen, Yen-Lin Liu, Chia-Wei Hsu, Jo-Yu Wu, Chang-Fen Hu, Shao-Yu Li, Bo-Ting Chen
  • Bicycle seat post structure
    Patent number: 11679830
    Abstract: A bicycle seat post structure includes an upper tube, a lower tube, a height adjusting mechanism and at least one sliding member. The upper tube includes at least one stopping member. The lower tube has a first edge. The sliding member is movably disposed in the lower tube. The stopping member does not abut against the sliding member as the stopping member is in a first position. When the height adjusting mechanism is operated to allow the upper tube to move along an axial direction, the stopping member is switched to a second position and is restricted by the sliding member. The sliding member is operated to move along the axial direction so as to be positioned from one of a plurality of positions to another one of the plurality of positions, thereby changing a distance between the stopping member in the second position and the first edge.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: June 20, 2023
    Assignee: LIMOTEC METAL INDUSTRY LIMITED
    Inventors: Tzu-Chien Tso, Yao-Chin Yang, Chih-Cheng Cheng, Huan-Wei Liu
  • BICYCLE SEAT POST STRUCTURE
    Publication number: 20220126939
    Abstract: A bicycle seat post structure includes an upper tube, a lower tube, a height adjusting mechanism and at least one sliding member. The upper tube includes at least one stopping member. The lower tube has a first edge. The sliding member is movably disposed in the lower tube. The stopping member does not abut against the sliding member as the stopping member is in a first position. When the height adjusting mechanism is operated to allow the upper tube to move along an axial direction, the stopping member is switched to a second position and is restricted by the sliding member. The sliding member is operated to move along the axial direction so as to be positioned from one of a plurality of positions to another one of the plurality of positions, thereby changing a distance between the stopping member in the second position and the first edge.
    Type: Application
    Filed: October 20, 2021
    Publication date: April 28, 2022
    Inventors: Tzu-Chien TSO, Yao-Chin YANG, Chih-Cheng CHENG, Huan-Wei LIU