Patents by Inventor Coimbatore Subramanian Ramalingam

Coimbatore Subramanian Ramalingam 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 and electronic device for estimating frequencies of multiple sinusoids which trades bias with variance
    Patent number: 11879916
    Abstract: Accordingly embodiments herein disclose a method for estimating frequencies of multiple sinusoids by an electronic device (100). The method includes receiving a signal, where the signal comprises the multiple sinusoids. Further, the method includes estimating an initial frequency of each of the multiple sinusoids present in the received signal, determining that a first candidate parameter is less than zero, where the candidate parameter is a function of an estimated Signal-to-noise ratio (SNR) and an estimated threshold. Further, the method includes performing zero-padding on the received signal. Further, the method includes re-estimating frequencies obtained from zero-padded version of the received signal. Further, the method includes validating the re-estimated frequencies obtained from zero-padded version of the received signal based on validation criteria. Further, the method includes predicting the re-estimated frequencies or the initial frequencies as optimal frequencies based on the validation.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: January 23, 2024
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY MADRAS (IIT MADRAS)
    Inventors: Vishnu Palakkal, Coimbatore Subramanian Ramalingam
  • METHOD AND ELECTRONIC DEVICE FOR ESTIMATING FREQUENCIES OF MULTIPLE SINUSOIDS WHICH TRADES BIAS WITH VARIANCE
    Publication number: 20230176099
    Abstract: Accordingly embodiments herein disclose a method for estimating frequencies of multiple sinusoids by an electronic device (100). The method includes receiving a signal, where the signal comprises the multiple sinusoids. Further, the method includes estimating an initial frequency of each of the multiple sinusoids present in the received signal, determining that a first candidate parameter is less than zero, where the candidate parameter is a function of an estimated Signal-to-noise ratio (SNR) and an estimated threshold. Further, the method includes performing zero-padding on the received signal. Further, the method includes re-estimating frequencies obtained from zero-padded version of the received signal. Further, the method includes validating the re-estimated frequencies obtained from zero-padded version of the received signal based on validation criteria. Further, the method includes predicting the re-estimated frequencies or the initial frequencies as optimal frequencies based on the validation.
    Type: Application
    Filed: March 18, 2021
    Publication date: June 8, 2023
    Applicant: Indian Institute of Technology Madras (IIT Madras)
    Inventors: Vishnu Palakkal, Coimbatore Subramanian Ramalingam