Patents by Inventor Kaijie DING

Kaijie DING 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).

  • Zero-delay phase-locked loop frequency synthesizer based on multi-stage synchronization
    Patent number: 11463096
    Abstract: Disclosed is a zero-delay phase-locked loop frequency synthesizer based on multi-stage synchronization, which belongs to the technical field of integrated circuits. The zero-delay phase-locked loop frequency synthesizer comprises: a phase frequency detector, a charge pump, a loop pass filter, a voltage control oscillator and a multi-stage synchronization divider, wherein the phase frequency detector, the charge pump, the loop pass filter and the voltage control oscillator are connected in sequence; an output OUT of the voltage control oscillator is connected to an input IN of the multi-stage synchronization divider; and an output OUT of the multi-stage synchronization divider is connected to an input IN of the phase frequency detector, so as to form a feedback path.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: October 4, 2022
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Zhiwei Xu, Jiangbo Chen, Jiabing Liu, Hui Nie, Kaijie Ding, Chunyi Song
  • ZERO-DELAY PHASE-LOCKED LOOP FREQUENCY SYNTHESIZER BASED ON MULTI-STAGE SYNCHRONIZATION
    Publication number: 20220021394
    Abstract: Disclosed is a zero-delay phase-locked loop frequency synthesizer based on multi-stage synchronization, which belongs to the technical field of integrated circuits. The zero-delay phase-locked loop frequency synthesizer comprises: a phase frequency detector, a charge pump, a loop pass filter, a voltage control oscillator and a multi-stage synchronization divider, wherein the phase frequency detector, the charge pump, the loop pass filter and the voltage control oscillator are connected in sequence; an output OUT of the voltage control oscillator is connected to an input IN of the multi-stage synchronization divider; and an output OUT of the multi-stage synchronization divider is connected to an input IN of the phase frequency detector, so as to form a feedback path.
    Type: Application
    Filed: September 30, 2021
    Publication date: January 20, 2022
    Inventors: Zhiwei XU, Jiangbo CHEN, Jiabing LIU, Hui NIE, Kaijie DING, Chunyi SONG