Patents by Inventor Jiaqin Dong

Jiaqin Dong 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).

  • Apparatus and method for image reconstruction and CT system
    Patent number: 8712135
    Abstract: A method for image reconstruction using projection data obtained by an asymmetric detector includes dividing the projection data into Regions 1, 2, 3, 4, and 5. Region 1 is an asymmetric region having detecting channels but no detecting channels symmetrical about a central channel. Region 2 is a transition region having detecting channels and there are detecting channels symmetrical about the central channel. Region 3 is a symmetric region having detecting channels and there are detecting channels symmetrical about the central channel. Region 4 is a transition region having detecting channels and there are detecting channels symmetrical about the central channel. Region 5 is a truncated region where there is no detecting channel. The method includes performing a view angle weighting on projection data in each of the five regions, and reconstructing a tomographic image of an irradiated subject from the weighted projection data.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: April 29, 2014
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Zhihui Sun, Jiaqin Dong, Shuqin Dong
  • Calibration device for location of CT x-ray generator and detector, calibration method using the calibration device, and calibration method for CT system
    Patent number: 8622615
    Abstract: A calibration device for location of a CT X-ray generator and detector includes a splitting window, a splitting window bracket configured to support the splitting window, an integral bracket, and a spring including a first end connected to the splitting window bracket and a second end connected to the integral bracket.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: January 7, 2014
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Jingyi Ren, Shuqin Dong, Jiaqin Dong
  • APPARATUS AND METHOD FOR IMAGE RECONSTRUCTION AND CT SYSTEM
    Publication number: 20120106818
    Abstract: A method for image reconstruction using projection data obtained by an asymmetric detector includes dividing the projection data into Regions 1, 2, 3, 4, and 5. Region 1 is an asymmetric region having detecting channels but no detecting channels symmetrical about a central channel. Region 2 is a transition region having detecting channels and there are detecting channels symmetrical about the central channel. Region 3 is a symmetric region having detecting channels and there are detecting channels symmetrical about the central channel. Region 4 is a transition region having detecting channels and there are detecting channels symmetrical about the central channel. Region 5 is a truncated region where there is no detecting channel. The method includes performing a view angle weighting on projection data in each of the five regions, and reconstructing a tomographic image of an irradiated subject from the weighted projection data.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 3, 2012
    Inventors: Zhihui Sun, Jiaqin Dong, Shuqin Dong
  • CALIBRATION DEVICE FOR LOCATION OF CT X-RAY GENERATOR AND DETECTOR, CALIBRATION METHOD USING THE CALIBRATION DEVICE, AND CALIBRATION METHOD FOR CT SYSTEM
    Publication number: 20120012742
    Abstract: A calibration device for location of a CT X-ray generator and detector includes a splitting window, a splitting window bracket configured to support the splitting window, an integral bracket, and a spring including a first end connected to the splitting window bracket and a second end connected to the integral bracket.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 19, 2012
    Inventors: Jingyi Ren, Shuqin Dong, Jiaqin Dong
  • X-ray detector and X-ray CT apparatus
    Patent number: 7916831
    Abstract: An X-ray detector includes a single-layered semiconductor substrate having an array of detection cells which directly convert photons of X-rays into electrical signals; a first data collecting device which collects data with respect to the array of detection cells in a photon counting mode; and a second data collecting device which collects data with respect to the array of detection cells in a current measuring mode.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: March 29, 2011
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Yunfeng Sun, Jiaqin Dong, Jianying Li
  • X-RAY DETECTOR AND X-RAY CT APPARATUS
    Publication number: 20090274266
    Abstract: An X-ray detector includes a single-layered semiconductor substrate having an array of detection cells which directly convert photons of X-rays into electrical signals; a first data collecting device which collects data with respect to the array of detection cells in a photon counting mode; and a second data collecting device which collects data with respect to the array of detection cells in a current measuring mode.
    Type: Application
    Filed: April 30, 2009
    Publication date: November 5, 2009
    Inventors: Yunfeng Sun, Jiaqin Dong, Jianying Li