Patents by Inventor Gaojie Song

Gaojie Song 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).

  • BIDIRECTIONAL DIGITAL SWITCHING POWER AMPLIFIER AND MULTI-STEP CURRENT PREDICTION CONTROL METHOD THEREOF
    Publication number: 20230208292
    Abstract: The present application relates to a bidirectional digital switching power amplifier based on a magnetic suspension drive platform and its multi-step current predictive control method. The control method includes the following steps: establishing a prediction model of a bidirectional digital switching power amplifier; introducing a feedback correction term for a closed loop prediction; calculating an optimal modulation duty cycle through a value function; generating, according to the obtained modulation duty cycle, four PWM drive signals by a pulse width modulation module to control four switch tubes respectively to achieve current prediction control. The present application effectively improves the system control accuracy with small steady-state error, small on-line computation amount, simple algorithm, easy digital realization, and good practical value and application prospect.
    Type: Application
    Filed: May 19, 2021
    Publication date: June 29, 2023
    Inventors: Feng SUN, Fangchao XU, Junjie JIN, Gaojie SONG, Li CHEN, Ming ZHANG, Ling TONG, Qiang LI, Xiaoyou ZHANG
  • Conformation-stabilized TRAP antigens
    Patent number: 9580482
    Abstract: This invention relates to compositions and methods for eliciting an immune response against a parasite of the genus Plasmodium in a mammal.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: February 28, 2017
    Assignee: Children's Medical Center Corporation
    Inventors: Timothy A. Springer, Chafen Lu, Gaojie Song, Adem Koksal
  • Conformation-Stabilized TRAP Antigens
    Publication number: 20150147349
    Abstract: This invention relates to compositions and methods for eliciting an immune response against a parasite of the genus Plasmodium in a mammal.
    Type: Application
    Filed: February 15, 2013
    Publication date: May 28, 2015
    Inventors: Timothy A. Springer, Chafen Lu, Gaojie Song, Adem Koksal