Patents by Inventor Zongan Li

Zongan Li 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).

  • 3D printing equipment utilizing biological material, and method
    Patent number: 11325301
    Abstract: 3D bioprinting apparatus, and a three-dimensional bioprinting method utilizing the apparatus. The 3D bioprinting apparatus comprises a printer frame (14). A 3D bioprinting pen device (4) is arranged on the printer frame (14) and includes a detachable printing pen (1).
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: May 10, 2022
    Inventors: Qing Jiang, Liya Zhu, Lan Li, Zongan Li, Kelou Li, Jianfei Yang
  • 3D Printing Equipment Utilizing Biological Material, and Method
    Publication number: 20190134902
    Abstract: 3D bioprinting apparatus, and a three-dimensional bioprinting method utilizing the apparatus. The 3D bioprinting apparatus comprises a printer frame (14). A 3D bioprinting pen device (4) is arranged on the printer frame (14) and includes a detachable printing pen (1).
    Type: Application
    Filed: February 27, 2017
    Publication date: May 9, 2019
    Inventors: Qing JIANG, Liya ZHU, Lan LI, Zongan LI, Kelou LI, Jianfei YANG
  • System for synchronizing clock
    Patent number: 8654796
    Abstract: A system for synchronizing clock, which is used to realize the synchronization between a radio frequency module and a base band module in a base station, comprises: one or more time generators, located on the radio frequency module side, configured to generate a synchronous signal according to an external clock signal, and to send the synchronous signal to a time distributor; the time distributor, located on the base band module side, configured to generate a synchronous clock according to a synchronous signal from one of the one or more time generators, and to adjust the synchronous clock according to a communication delay between the time generator which outputs the synchronous signal and the time distributor, and to send the synchronous clock adjusted to the radio frequency module and the base band module to realize the synchronization between the radio frequency module and the base band module.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: February 18, 2014
    Assignee: ZTE Corporation
    Inventors: Jiying Xiang, Zongan Li
  • SYSTEM FOR SYNCHRONIZING CLOCK
    Publication number: 20100329404
    Abstract: A system for synchronizing clock, which is used to realize the synchronization between a radio frequency module and a base band module in a base station, comprises: one or more time generators, located on the radio frequency module side, configured to generate a synchronous signal according to an external clock signal, and to send the synchronous signal to a time distributor; the time distributor, located on the base band module side, configured to generate a synchronous clock according to a synchronous signal from one of the one or more time generators, and to adjust the synchronous clock according to a communication delay between the time generator which outputs the synchronous signal and the time distributor, and to send the synchronous clock adjusted to the radio frequency module and the base band module to realize the synchronization between the radio frequency module and the base band module.
    Type: Application
    Filed: August 31, 2010
    Publication date: December 30, 2010
    Inventors: Jiying Xiang, Zongan Li