Patents by Inventor Caiyun Hu

Caiyun Hu 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).

  • Earbud
    Patent number: 10986440
    Abstract: An earbud comprises: a casing in which a sound cavity is provided; a speaker disposed in the sound cavity and dividing the sound cavity into a front sound cavity and a rear sound cavity; and an acoustic structure located in the rear sound cavity. The acoustic structure comprises a first sound guiding wall and a cover plate, the first sound guiding wall is attached to a bottom surface of the rear sound cavity and is configured to, together with at least a part of an inner wall of the casing, constitutes a sound guiding groove, and the cover plate is mounted at an upper opening part of the sound guiding groove, such that the sound guiding groove forms a bass pipe which communicates from the rear sound cavity to at least one aperture of the casing.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: April 20, 2021
    Inventors: Caiyun Hu, Hongmei Wang, Xiaoli Zhao, Kaibo Xing, Huijin Chen
  • EARBUD
    Publication number: 20200145749
    Abstract: An earbud comprises: a casing in which a sound cavity is provided; a speaker disposed in the sound cavity and dividing the sound cavity into a front sound cavity and a rear sound cavity; and an acoustic structure located in the rear sound cavity. The acoustic structure comprises a first sound guiding wall and a cover plate, the first sound guiding wall is attached to a bottom surface of the rear sound cavity and is configured to, together with at least a part of an inner wall of the casing, constitutes a sound guiding groove, and the cover plate is mounted at an upper opening part of the sound guiding groove, such that the sound guiding groove forms a bass pipe which communicates from the rear sound cavity to at least one aperture of the casing.
    Type: Application
    Filed: June 25, 2019
    Publication date: May 7, 2020
    Inventors: Caiyun Hu, Hongmei Wang, Xiaoli Zhao, Kaibo Xing, Huijin Chen
  • Cleaning robot
    Patent number: D972241
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: December 6, 2022
    Assignee: Beijing Roborock Technology Co., Ltd.
    Inventors: Youcheng Lu, Caiyun Hu