Patents by Inventor Da-Shan Hsu

Da-Shan Hsu 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: 11817278
    Abstract: A magnetic type keyswitch includes an actuating member and a switch unit. The actuating member is movable in response to a pressing force. The switch unit includes a circuit board, a Hall sensor electrically connected to the circuit board, and a magnet spaced apart from the Hall sensor by a fixed distance. When the pressing force is not applied, the magnet enables the Hall sensor to output a first voltage, and when the pressing force is applied, the actuating member moves relative to the magnet and the Hall sensor in response to the pressing force, so that the Hall sensor outputs a second voltage different from the first voltage, and the magnetic type keyswitch generates a triggering signal.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: November 14, 2023
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Da-Shan Hsu, Shao-Lun Hsiao, Chen Yang, Yu-Chun Hsieh
  • Publication number: 20230187147
    Abstract: A keyswitch assembly includes a base, a pressable plate, a first magnetic acting member and a second magnetic acting member. An accommodating space is defined within the base, and an upper surface of the base is provided with a connecting portion. The pressable plate includes a pressing portion, an acting portion and a pivotal connection portion located between the pressing portion and the acting portion and pivotally connected to the connecting portion. The first magnetic acting member is disposed on the acting portion; the second magnetic acting member is disposed on the base corresponding to the first magnetic acting member. The keyswitch assembly is configured such that the first magnetic acting member and the second magnetic acting are attracted or repulsed each other by a magnetic force, so as to provide or change a pressing resistance of the pressing portion.
    Type: Application
    Filed: August 24, 2022
    Publication date: June 15, 2023
    Inventors: Chih-Yao CHI, Ling-Hsi CHAO, Da-Shan HSU, Shao-Lun HSIAO, Yu-Chun HSIEH
  • Publication number: 20220351920
    Abstract: A magnetic type keyswitch includes an actuating member and a switch unit. The actuating member is movable in response to a pressing force. The switch unit includes a circuit board, a Hall sensor electrically connected to the circuit board, and a magnet spaced apart from the Hall sensor by a fixed distance. When the pressing force is not applied, the magnet enables the Hall sensor to output a first voltage, and when the pressing force is applied, the actuating member moves relative to the magnet and the Hall sensor in response to the pressing force, so that the Hall sensor outputs a second voltage different from the first voltage, and the magnetic type keyswitch generates a triggering signal.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 3, 2022
    Inventors: Da-Shan HSU, Shao-Lun HSIAO, Chen YANG, Yu-Chun HSIEH
  • Patent number: 11099666
    Abstract: A wheel device applied to a mouse includes a base, a wheel module, a sheltering component and an optical detecting module. The base has a holder. The wheel module is disposed on the base and includes a roller and a wheel. The roller includes a rolling surface, an axle and a plurality of rib structures. The axle is rotatably disposed on the holder in an axle direction. The rib structures are disposed inside the rolling surface. The wheel is disposed on the rolling surface of the roller. The sheltering component includes light sheltering areas and light penetrating areas disposed on the roller or the wheel and around the axle direction. Each light sheltering area is perpendicular to the axle. The optical detecting module has an optical emitter and an optical receiver. The optical receiver is adapted to receive an optical signal emitted by the optical emitter.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: August 24, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Chen-Yun Su, Da-Shan Hsu, Shao-Lun Hsiao, Ling-Hsi Chao
  • Publication number: 20210041961
    Abstract: A wheel device applied to a mouse includes a base, a wheel module, a sheltering component and an optical detecting module. The base has a holder. The wheel module is disposed on the base and includes a roller and a wheel. The roller includes a rolling surface, an axle and a plurality of rib structures. The axle is rotatably disposed on the holder in an axle direction. The rib structures are disposed inside the rolling surface. The wheel is disposed on the rolling surface of the roller. The sheltering component includes light sheltering areas and light penetrating areas disposed on the roller or the wheel and around the axle direction. Each light sheltering area is perpendicular to the axle. The optical detecting module has an optical emitter and an optical receiver. The optical receiver is adapted to receive an optical signal emitted by the optical emitter.
    Type: Application
    Filed: February 20, 2020
    Publication date: February 11, 2021
    Inventors: Chen-Yun Su, Da-Shan Hsu, Shao-Lun Hsiao, Ling-Hsi Chao