Patents by Inventor Wun-Jian Su

Wun-Jian Su 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).

  • Patent number: 11251799
    Abstract: A phase-locked loop circuit calibration method for a memory storage device including a rewritable non-volatile memory module is provided according to an exemplary embodiment of the disclosure. The method includes: receiving a first signal from a host system; generating a jitter signal by the memory storage device; generating a second signal according to the first signal and the jitter signal; performing a phase-lock operation on the second signal to generate a third signal by a phase-locked loop circuit; and calibrating an electrical parameter of the phase-locked loop circuit according to a variation of a time difference between the first signal and the third signal.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: February 15, 2022
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Chia-Hui Yu, Wun-Jian Su, Yu-Jung Chiu, Chiao-Chieh Yang
  • Patent number: 11139816
    Abstract: A clock and data recovery circuit is disclosed. The clock and data recovery circuit includes a phase detection circuit, a first voting circuit, a low-pass filtering circuit and a phase interpolation circuit. The phase detection circuit is configured to receive a first signal and a clock signal and generate a phase signal. The first voting circuit is configured to charge at least one capacitance component according to the phase signal and generate a first voting signal according to a charging result. The low-pass filtering circuit is configured to generate a phase control signal according to the first voting signal. The phase interpolation circuit is configured to generate the clock signal according to the phase control signal.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: October 5, 2021
    Assignee: PHISON ELECTRONICS CORP.
    Inventors: Jen-Chu Wu, Po-Min Cheng, Wun-Jian Su, Chia-Hui Yu
  • Publication number: 20210273642
    Abstract: A clock and data recovery circuit is disclosed. The clock and data recovery circuit includes a phase detection circuit, a first voting circuit, a low-pass filtering circuit and a phase interpolation circuit. The phase detection circuit is configured to receive a first signal and a clock signal and generate a phase signal. The first voting circuit is configured to charge at least one capacitance component according to the phase signal and generate a first voting signal according to a charging result. The low-pass filtering circuit is configured to generate a phase control signal according to the first voting signal. The phase interpolation circuit is configured to generate the clock signal according to the phase control signal.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 2, 2021
    Applicant: PHISON ELECTRONICS CORP.
    Inventors: Jen-Chu Wu, Po-Min Cheng, Wun-Jian Su, Chia-Hui Yu
  • Publication number: 20210203334
    Abstract: A phase-locked loop circuit calibration method for a memory storage device including a rewritable non-volatile memory module is provided according to an exemplary embodiment of the disclosure. The method includes: receiving a first signal from a host system; generating a jitter signal by the memory storage device; generating a second signal according to the first signal and the jitter signal; performing a phase-lock operation on the second signal to generate a third signal by a phase-locked loop circuit; and calibrating an electrical parameter of the phase-locked loop circuit according to a variation of a time difference between the first signal and the third signal.
    Type: Application
    Filed: February 17, 2020
    Publication date: July 1, 2021
    Applicant: PHISON ELECTRONICS CORP.
    Inventors: Chia-Hui Yu, Wun-Jian Su, Yu-Jung Chiu, Chiao-Chieh Yang