Patents by Inventor Liang CAl

Liang CAl 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: 20220330907
    Abstract: Multiple interactions, such as Compton scattering, inside a PET detector are used to predict an incident photon's direction for identifying true coincidence events versus scatter/random coincidence events by creating a cone shaped shell projection defining a range of possible flight directions for the incident photon. The disclosed techniques can be used as prior information to improve the image reconstruction process. The disclosed techniques can be implemented in a LYSO/SiPM-based layer stacked detector, which can precisely register multiple interactions' 3D position.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 20, 2022
    Inventors: Liang CAl, Wenyuan QI, Xiaochun LAl, Peng PENG
  • Publication number: 20160313454
    Abstract: A computed tomography (CT) detector apparatus includes a plurality of detectors arranged in a ring, each detector being arranged inside a Faraday cage having a plurality of voltage-biased side-electrodes arranged on a side surface of the Faraday cage. The detectors include photon-counting detectors (PCDs). A voltage applied to the voltage-biased side-electrodes decreases from the anode side of the PCD to the cathode side of the PCD.
    Type: Application
    Filed: April 21, 2015
    Publication date: October 27, 2016
    Inventors: Miesher Lage RODRIGUES, Gin Chung WANG, Hao YANG, Liang CAl, Alan KARR
  • Publication number: 20160178762
    Abstract: A computed tomography (CT) detector apparatus includes a plurality of detector arrays arranged in a ring, wherein for at least one array that includes a plurality of elements, an anode pixel pattern is non-uniform in a z-axis direction and a thickness of each element in the array is correspondingly non-uniform along the z-axis direction. A size of the anode pixels increases proportionally away from a center of the array, and a thickness of the elements increases away from the center of the array. The ratio of the thickness of the element to the size of the anode pixels is substantially the same over the array.
    Type: Application
    Filed: December 18, 2014
    Publication date: June 23, 2016
    Applicants: Toshiba Medical Systems Corporation
    Inventors: Miesher L. RODRIGUES, Hao YANG, Liang CAl