Patents by Inventor Linfei SU

Linfei 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).

  • Method for measuring Noise RMS of periodic signal and signal-to-noise ratio of sinusoidal signal
    Patent number: 12683699
    Abstract: The present application relates to a method for measuring a Noise RMS of a periodic signal and a signal-to-noise ratio of a sinusoidal signal. The technical points of the method comprise: respectively executing signal noise measurement on a target periodic digital signal and a target periodic analog signal; obtaining a series of zero-crossing points of electrical signals, performing analog-to-digital conversion once at a relative time determined by means of the series of zero-crossing points; and further calculating the noise of the periodic signals by means of a series of analog-to-digital conversion results.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: July 14, 2026
    Assignee: Nanjing University Of Posts And Telecommunications
    Inventors: Erhan Dai, Zhi Weng, Linfei Su
  • METHOD FOR MEASURING NOISE RMS OF PERIODIC SIGNAL AND SIGNAL-TO-NOISE RATIO OF SINUSOIDAL SIGNAL
    Publication number: 20260058741
    Abstract: The present application relates to a method for measuring a Noise RMS of a periodic signal and a signal-to-noise ratio of a sinusoidal signal. The technical points of the method comprise: respectively executing signal noise measurement on a target periodic digital signal and a target periodic analog signal; obtaining a series of zero-crossing points of electrical signals, performing analog-to-digital conversion once at a relative time determined by means of the series of zero-crossing points; and further calculating the noise of the periodic signals by means of a series of analog-to-digital conversion results.
    Type: Application
    Filed: November 2, 2025
    Publication date: February 26, 2026
    Applicant: Nanjing University Of Posts And Telecommunications
    Inventors: Erhan DAI, Zhi WENG, Linfei SU
  • METHOD FOR MEASURING NOISE RMS OF PERIODIC SIGNAL AND SIGNAL-TO-NOISE RATIO OF SINUSOIDAL SIGNAL
    Publication number: 20250310012
    Abstract: The present application relates to a method for measuring a Noise RMS of a periodic signal and a signal-to-noise ratio of a sinusoidal signal. The technical points of the method comprise: respectively executing signal noise measurement on a target periodic digital signal and a target periodic analog signal; obtaining a series of zero-crossing points of electrical signals, performing analog-to-digital conversion once at a relative time determined by means of the series of zero-crossing points; and further calculating the noise of the periodic signals by means of a series of analog-to-digital conversion results.
    Type: Application
    Filed: October 25, 2022
    Publication date: October 2, 2025
    Applicant: Nanjing University Of Posts And Telecommunications
    Inventors: Erhan DAI, Zhi WENG, Linfei SU