Patents by Inventor Dongdong ZHOU

Dongdong ZHOU 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).

  • Publication number: 20230295047
    Abstract: A magnesium-based fly ash porous sound-absorbing material with a surface hydrophobically modified, and a preparation method thereof are provided. In the preparation method, a basic magnesium sulfate cement is adopted as a cementing agent and a fly ash is adopted as a mineral admixture to prepare a slurry; foaming is conducted through a physical foaming process in a foaming machine to obtain a foam; and the foam is mixed with the slurry, and a resulting mixture is poured and cured, and then subjected to a surface hydrophobic modification through vapor deposition to obtain the sound-absorbing material. The sound-absorbing material has a density of 251 kg/m3 to 306 kg/m3, a noise reduction coefficient (NRC) of 0.65 to 0.7, a compressive strength of 1.8 MPa to 2.2 MPa, and a water contact angle of 129° to 151°.
    Type: Application
    Filed: May 29, 2023
    Publication date: September 21, 2023
    Applicant: Shanxi University
    Inventors: Fangqin CHENG, Li FANG, Dongdong ZHOU, Jiankuan HE, Zhenzhen JIA
  • Patent number: 10785366
    Abstract: Embodiments of the present disclosure provide a method, an apparatus, and an electronic device for controlling a display screen backlight, and a storage medium. It is determined, with reference to an included angle between the electronic device and a preset direction and whether there is an object shielding an aperture in a call state, that the display screen backlight is adjusted to be on or off.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: September 22, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dongdong Zhou, Xiyu Zhou, Guanglin Wang, Liang Wang
  • Publication number: 20190124197
    Abstract: Embodiments of the present disclosure provide a method, an apparatus, and an electronic device for controlling a display screen backlight, and a storage medium. It is determined, with reference to an included angle between the electronic device and a preset direction and whether there is an object shielding an aperture in a call state, that the display screen backlight is adjusted to be on or off.
    Type: Application
    Filed: April 5, 2016
    Publication date: April 25, 2019
    Inventors: Dongdong ZHOU, Xiyu ZHOU, Guanglin WANG, Liang WANG