Patents by Inventor Zhenzhen CHENG

Zhenzhen CHENG 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).

  • Diaphragm and miniature speaker comprising same
    Patent number: 10856083
    Abstract: The present invention discloses a diaphragm and a miniature speaker comprising the diaphragm. The diaphragm has a multi-layer composite structure comprising alternately stacked thermoplastic elastomer layers and adhesive film layer(s). The diaphragm and the miniature speaker comprising the same solve the technical problems such as an unstable F0 and high total harmonic distortion of the miniature speaker in the prior art. The diaphragm and the miniature speaker according to the invention have low total harmonic distortion, low damping coefficient, higher F0 stability and high sound quality, satisfying requirements for high sound quality of an electronic device.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: December 1, 2020
    Assignee: GOERTEK INC.
    Inventors: Zhenzhen Cheng, Jianhua Gu, Zengxun Wu
  • DIAPHRAGM AND MINIATURE SPEAKER COMPRISING SAME
    Publication number: 20190149924
    Abstract: The present invention discloses a diaphragm and a miniature speaker comprising the diaphragm. The diaphragm has a multi-layer composite structure comprising alternately stacked thermoplastic elastomer layers and adhesive film layer(s). The diaphragm and the miniature speaker comprising the same solve the technical problems such as an unstable F0 and high total harmonic distortion of the miniature speaker in the prior art. The diaphragm and the miniature speaker according to the invention have low total harmonic distortion, low damping coefficient, higher F0 stability and high sound quality, satisfying requirements for high sound quality of an electronic device.
    Type: Application
    Filed: December 28, 2016
    Publication date: May 16, 2019
    Inventors: Zhenzhen CHENG, Jianhua GU, Zengxun WU