Patents by Inventor Fuzhong Yang

Fuzhong Yang 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: 20210262834
    Abstract: A five-degree-of-freedom heterodyne grating interferometry system comprises: a single-frequency laser for emitting single-frequency laser light, the single-frequency laser light can be split into a reference light beam and a measurement light beam; an interferometer lens set and a measurement grating for converting the reference light and the measurement light into a reference interference signal and a measurement interference signal; and multiple optical fiber bundles, respectively receiving the measurement interference signal and the reference interference signal, wherein each optical fiber bundle has multiple multi-mode optical fibers respectively receiving interference signals at different positions on the same plane. The measurement system is not over-sensitive to the environment, is small and light, and is easy to arrange.
    Type: Application
    Filed: June 26, 2019
    Publication date: August 26, 2021
    Inventors: Ming ZHANG, Yu ZHU, Fuzhong YANG, Leijie WANG, Rong CHENG, Xin LI, Weinan YE, Jinchun HU
  • Publication number: 20210164772
    Abstract: A two-degree-of-freedom heterodyne grating interferometry measurement system, comprising: a single-frequency laser device for emitting a single-frequency laser, and the single-frequency laser can be split into a beam of reference light and a beam of measurement light; an interferometer mirror group and a measurement grating for forming a reference interference signal and a measurement interference signal from the reference light and the measurement light; and a receiving optical fiber for receiving the reference interference signal and the measurement interference signal, wherein a core diameter of the receiving optical fiber is smaller than a width of an interference fringe of the reference interference signal and the measurement interference signal, so that the receiving optical fiber receives a part of the reference interference signal and the measurement interference signal.
    Type: Application
    Filed: June 26, 2019
    Publication date: June 3, 2021
    Inventors: Yu ZHU, Ming ZHANG, Leijie WANG, Fuzhong YANG, Rong CHENG, Xin LI, Weinan YE, Jinchun HU
  • Patent number: 6975738
    Abstract: A television system of digital sound includes a color television and at least one pair of three-stage frequency-splitting column sound boxes with each having three speakers. A front digital processor and a power amplifier are arranged in the control circuit of the color television. Its accompanying sound outputs of a stereo are coupled respectively to the pair sound box or build it in the sound box. The system may provide television with Hi-fi stereo or serve as a sound equipment for receiving sound, perfectly reproducing various sound field effects when the scanning system of color television is turned off to save energy and effectively lengthen life of the kinescope and scanning sector.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: December 13, 2005
    Inventors: Fuzhong Yang, Fayong Cai
  • Publication number: 20010028723
    Abstract: A television system of digital sound includes a color television and at least one pair of three-stage frequency-splitting column sound boxes with each having three speakers. A front digital processor and a power amplifier are arranged in the control circuit of the color television. Its accompanying sound outputs of a stereo are coupled respectively to the pair sound box or build it in the sound box. The system may provide television with Hi-fi stereo or serve as a sound equipment for receiving sound, perfectly reproducing various sound field effects when the scanning system of color television is turned off to save energy and effectively lengthen life of the kinescope and scanning sector.
    Type: Application
    Filed: February 14, 2001
    Publication date: October 11, 2001
    Inventors: Fuzhong Yang, Fayong Cai