Patents by Inventor Meiying LIU

Meiying LIU 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).

  • ANTENNA ATTITUDE FAST MEASUREMENT SYSTEM AND METHOD THEREOF
    Publication number: 20250096911
    Abstract: An antenna attitude fast measurement system and a method are provided. The measurement system includes a data processing unit, a stereo calibration unit, at least two detector measurement units, and a plurality of target marker units; the target marker unit is arranged on the back of the antenna main reflector of the antenna system to be measured; the detector measurement unit is arranged outside the circumference of the antenna system to be measured; and the stereo calibration unit is arranged directly below the center of the antenna main reflector of the antenna system to be measured. Any two adjacent detector measurement units have a field-of-view intersection area, and there is at least one target marker unit within the field-of-view intersection area. The total number of target marker units in all field-of-view intersection areas is ?3. The data processing unit is electrically connected to the detector measurement unit.
    Type: Application
    Filed: September 12, 2024
    Publication date: March 20, 2025
    Inventors: Hu Wang, Shangmin Lin, Yaoke Xue, Zhen Wang, Meiying Liu, Canglong Zhou, Qinfang Chen, Jie Liu, Yang Liu, Yongjie Xie, Hongman He, Yue Pan, Yang Shen
  • Mass spectrometry apparatus for ultraviolet light ionization of neutral lost molecules, and method for operating same
    Patent number: 10163618
    Abstract: The invention proposes a mass spectrometry apparatus for ultraviolet light ionization of neutral lost molecules, and a method for operating same. The mass spectrometry apparatus for ultraviolet light ionization of neutral lost molecules includes a quadrupole tandem special linear ion trap mass analyzer, a vacuum ultraviolet lamp, a lamp front shutter, a gradient vacuum system and other necessary components for the mass spectrometry apparatus. In addition, the invention also proposes a method for operating the apparatus to efficiently store ions, fragment and analyze the ions, perform ultraviolet efficient ionization on lost neutral molecules, and then analyze the ions.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: December 25, 2018
    Assignee: NATIONAL INSTITUTE OF METROLOGY CHINA
    Inventors: Xingchuang Xiong, Xiang Fang, You Jiang, Xiaoyun Gong, Zejian Huang, Meiying Liu
  • MASS SPECTROMETRY APPARATUS FOR ULTRAVIOLET LIGHT IONIZATION OF NEUTRAL LOST MOLECULES, AND METHOD FOR OPERATING SAME
    Publication number: 20180261443
    Abstract: The invention proposes a mass spectrometry apparatus for ultraviolet light ionization of neutral lost molecules, and a method for operating same. The mass spectrometry apparatus for ultraviolet light ionization of neutral lost molecules includes a quadrupole tandem special linear ion trap mass analyzer, a vacuum ultraviolet lamp, a lamp front shutter, a gradient vacuum system and other necessary components for the mass spectrometry apparatus. In addition, the invention also proposes a method for operating the apparatus to efficiently store ions, fragment and analyze the ions, perform ultraviolet efficient ionization on lost neutral molecules, and then analyze the ions.
    Type: Application
    Filed: November 19, 2015
    Publication date: September 13, 2018
    Inventors: Xingchuang XIONG, Xiang FANG, You JIANG, Xiaoyun GONG, Zejian HUANG, Meiying LIU
  • Cigarette roller
    Patent number: D1031149
    Type: Grant
    Filed: October 19, 2023
    Date of Patent: June 11, 2024
    Inventor: Meiying Liu