Patents by Inventor Zefeng Chen

Zefeng Chen 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: 20230311013
    Abstract: A drift motorcycle includes a body and an advancing unit provided on the body and configured to provide advancing power for the body, and the body is further provided with a tilting unit and a transverse moving unit. The tilting unit is movably mounted on the body, and two ends of the tilting unit extend from two sides of the body to control the body to be switched between an upright state and a tilted state. The transverse moving unit is arranged at two sides of the body, and the transverse moving unit is configured to be in contact with a driving surface to generate a transverse power in a width direction of the body when the tilting unit controls the body to be switched to the tilted state.
    Type: Application
    Filed: April 15, 2021
    Publication date: October 5, 2023
    Inventors: Weibin WANG, Zefeng CHEN
  • Patent number: 11575186
    Abstract: An orth-mode transducer (OMT) assembly, including an OMT common port, an OMT feeder, and a polarization separated core. An input end of the OMT common port is connected to a single polarization antenna, one end of the OMT feeder is connected to an output end of the OMT common port, and an other end of the OMT feeder is connected to the polarization separated core, the OMT feeder has a tubular structure, and horizontal and vertical axes of an inner wall cross section of the OMT feeder are unequal, or a tuning rod is disposed in a tube of the OMT feeder and is perpendicular to an extension direction of the tube, and a vertical polarization port and a horizontal polarization port are disposed in the polarization separated core, the vertical polarization port transmits a vertical polarization wave, and the horizontal polarization port transmits a horizontal polarization wave.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: February 7, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Tinghai Lv, Zefeng Chen, Jicheng Zhang, Yong Chen
  • Publication number: 20210013568
    Abstract: An orth-mode transducer (OMT) assembly, including an OMT common port, an OMT feeder, and a polarization separated core. An input end of the OMT common port is connected to a single polarization antenna, one end of the OMT feeder is connected to an output end of the OMT common port, and an other end of the OMT feeder is connected to the polarization separated core, the OMT feeder has a tubular structure, and horizontal and vertical axes of an inner wall cross section of the OMT feeder are unequal, or a tuning rod is disposed in a tube of the OMT feeder and is perpendicular to an extension direction of the tube, and a vertical polarization port and a horizontal polarization port are disposed in the polarization separated core, the vertical polarization port transmits a vertical polarization wave, and the horizontal polarization port transmits a horizontal polarization wave.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 14, 2021
    Inventors: Tinghai Lv, Zefeng Chen, Jicheng Zhang, Yong Chen
  • Patent number: 10197793
    Abstract: A light modulator (e.g., for terahertz radiation) may be constructed using a prism in which light undergoes total internal reflection (TIR) at one surface. A tunable conductive layer is disposed on the TIR surface. The tunable conductive layer can have a conductivity that is dynamically controllable, e.g., by applying a voltage across the tunable conductive layer or by optically pumping the tunable conductive layer. The tunable conductive layer can absorb a portion of the reflected light beam, attenuating the beam, with the attenuation being a function of the electrical conductivity of the tunable conductive layer. The phase of the reflected light beam can also be altered as a function of electrical conductivity of the tunable conductive layer.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: February 5, 2019
    Assignee: The Chinese University of Hong Kong
    Inventors: Xudong Liu, Zefeng Chen, Edward Philip John Parrott, Benjamin Ung, Jianbin Xu, Emma MacPherson
  • Publication number: 20170329127
    Abstract: A light modulator (e.g., for terahertz radiation) may be constructed using a prism in which light undergoes total internal reflection (TIR) at one surface. A tunable conductive layer is disposed on the TIR surface. The tunable conductive layer can have a conductivity that is dynamically controllable, e.g., by applying a voltage across the tunable conductive layer or by optically pumping the tunable conductive layer. The tunable conductive layer can absorb a portion of the reflected light beam, attenuating the beam, with the attenuation being a function of the electrical conductivity of the tunable conductive layer. The phase of the reflected light beam can also be altered as a function of electrical conductivity of the tunable conductive layer.
    Type: Application
    Filed: May 8, 2017
    Publication date: November 16, 2017
    Inventors: Xudong Liu, Zefeng Chen, Edward Philip John Parrott, Benjamin Ung, Jianbin Xu, Emma MacPherson
  • Patent number: D898681
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: October 13, 2020
    Inventor: Zefeng Chen
  • Patent number: D907594
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: January 12, 2021
    Inventor: Zefeng Chen