Patents by Inventor Yadong GONG

Yadong GONG 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).

  • Optical signal to noise ratio detection circuit, apparatus and method
    Patent number: 10103807
    Abstract: Disclosed are embodiments of an apparatus and method relating to an optical signal to noise ratio detection circuit, adopting an optical switch, a tunable optical filter, a photoelectric conversion module, a pilot-tone modulation signal conditioning module and a control module. After the photoelectric conversion module converts a to-be-detected optical signal to a voltage signal, the pilot-tone modulation signal conditioning module respectively amplifies an AC signal and a DC signal in the voltage signal, correspondingly converts the AC signal and the DC signal to two-way digital signals, determines a modulation depth of the pilot-tone modulation signal and a modulation depth of an ASE noise according to the two-way digital signals, and calculates an optical signal to noise ratio of the optical signal.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: October 16, 2018
    Assignee: ZTE CORPORATION
    Inventor: Yadong Gong
  • OPTICAL SIGNAL TO NOISE RATIO DETECTION CIRCUIT, APPARATUS AND METHOD
    Publication number: 20170264363
    Abstract: Disclosed are embodiments of an apparatus and method relating to an optical signal to noise ratio detection circuit, adopting an optical switch, a tunable optical filter, a photoelectric conversion module, a pilot-tone modulation signal conditioning module and a control module. After the photoelectric conversion module converts a to-be-detected optical signal to a voltage signal, the pilot-tone modulation signal conditioning module respectively amplifies an AC signal and a DC signal in the voltage signal, correspondingly converts the AC signal and the DC signal to two-way digital signals, determines a modulation depth of the pilot-tone modulation signal and a modulation depth of an ASE noise according to the two-way digital signals, and calculates an optical signal to noise ratio of the optical signal.
    Type: Application
    Filed: August 11, 2015
    Publication date: September 14, 2017
    Inventor: Yadong GONG
  • Sealing cover
    Patent number: D988134
    Type: Grant
    Filed: November 7, 2022
    Date of Patent: June 6, 2023
    Inventor: Yadong Gong
  • Food container
    Patent number: D996919
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: August 29, 2023
    Inventor: Yadong Gong
  • Glass jar
    Patent number: D1007316
    Type: Grant
    Filed: June 13, 2023
    Date of Patent: December 12, 2023
    Inventor: Yadong Gong