Patents by Inventor Jian Cha

Jian Cha 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).

  • System and method for detecting centroid of complementary single pixel
    Patent number: 11940348
    Abstract: Disclosed are a system and a method for detecting a centroid of a complementary single pixel. The system includes a lens group, a single-pixel detector assembly, a Digital Micromirror Device (DMD) and an acquisition and processing unit. The acquisition and processing unit generates two-dimensional modulation matrices A and B which are loaded into the DMD; the lens group processes light reflected or transmitted from a target object, such that an image of the target object is imaged on the DMD; and the acquisition and processing unit is connected with data output ends of two single-pixel detectors in respective, to calculate the centroid of the target object. The DMD modulates an image signal of the target object according to modulation information A and B; the single-pixel detector assembly includes a first single-pixel detector and a second single-pixel detector.
    Type: Grant
    Filed: November 22, 2023
    Date of Patent: March 26, 2024
    Assignee: Hefei Institutes of Physical Science, Chinese Academy of Sciences
    Inventors: Dongfeng Shi, Yingjian Wang, Jian Huang, Yafeng Chen, Ke'e Yuan, Linbin Cha
  • SYSTEM AND METHOD FOR DETECTING CENTROID OF COMPLEMENTARY SINGLE PIXEL
    Publication number: 20240094086
    Abstract: Disclosed are a system and a method for detecting a centroid of a complementary single pixel. The system includes a lens group, a single-pixel detector assembly, a Digital Micromirror Device (DMD) and an acquisition and processing unit. The acquisition and processing unit generates two-dimensional modulation matrices A and B which are loaded into the DMD; the lens group processes light reflected or transmitted from a target object, such that an image of the target object is imaged on the DMD; and the acquisition and processing unit is connected with data output ends of two single-pixel detectors in respective, to calculate the centroid of the target object. The DMID modulates an image signal of the target object according to modulation information A and B; the single-pixel detector assembly includes a first single-pixel detector and a second single-pixel detector.
    Type: Application
    Filed: November 22, 2023
    Publication date: March 21, 2024
    Applicant: Hefei Institutes of Physical Science, Chinese Academy of Sciences
    Inventors: Dongfeng SHI, Yingjian WANG, Jian HUANG, Yafeng CHEN, Ke'e YUAN, Linbin CHA
  • Hydroxytyrosol p-phenylenedicarboxylate having antioxidant activity and a method of preparing the same
    Patent number: 10472321
    Abstract: A compound having the formula (I): is disclosed. A method of preparing the compound of formula (I) is also disclosed.
    Type: Grant
    Filed: July 13, 2019
    Date of Patent: November 12, 2019
    Assignee: SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chengyuan Liang, Yuzhi Liu, Xingke Ju, Yonghong Tang, Minghui Chang, Bin Tian, Dan Yang, Han Li, Ning Liu, Huayin Pu, Jian Cha, Juanna Song, Yongbo Wang