Patents by Inventor Chaijie Duan

Chaijie Duan 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: 20240162966
    Abstract: A beam scanning system is provided, including an antenna module and a signal processing circuit. The antenna module includes N transmitting antennas arranged along a first direction on the first plane. Each transmitting antenna extends in a second direction on the first plane and is configured to convert electrical signals into millimeter wave electromagnetic signals. N millimeter wave electromagnetic signals sent by the N transmitting antennas form a target beam. The signal processing circuit is connected with the antenna module to control the target beam to perform two-dimensional scanning by outputting a frequency and phase controllable electrical signal to each of the N transmitting antennas. The frequency and phase of the electrical signals output to the N transmitting antennas may be adjusted by the signal processing circuit when the multiple transmitting antennas in the antenna module are only arranged in one direction.
    Type: Application
    Filed: May 30, 2023
    Publication date: May 16, 2024
    Applicant: SHENZHEN HUAYI MEDICAL TECHNOLOGIES CO., LTD
    Inventors: Yi HUANG, Yan GONG, Chaijie DUAN, Wei HU, Huajie LIN
  • Publication number: 20110237929
    Abstract: Disclosed is a method and apparatus for detection of a bladder wall tumor. Layers of a bladder wall are created by magnetic resonance imaging. A group of voxels having a lowest intensity is identified in a layer and an energy function modification enlarges the layer of the bladder wall. A partial volume image segmentation obtains tissue type mixture percentages in each voxel near inner and outer borders of the bladder wall in the layer of the bladder wall to obtain a bladder wall thickness. A range of uncertainty at the inner and outer borders of the bladder wall is obtained, and integration is performed of the bladder wall thickness along a path starting at a point on the outer border and ending at a corresponding point on the inner border.
    Type: Application
    Filed: September 8, 2009
    Publication date: September 29, 2011
    Inventors: Zhengrong Liang, Su Wang, Chaijie Duan, Hongbin Zhu, Xianfeng Gu