Patents by Inventor Devangi N. Parikh

Devangi N. Parikh 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 system for interference suppression using blind source separation
    Patent number: 9741358
    Abstract: A method of interference suppression is provided that includes receiving a first audio signal from a first audio capture device and a second audio signal from a second audio capture device wherein the first audio signal includes a first combination of desired audio content and interference and the second audio signal includes a second combination of the desired audio content and the interference, performing blind source separation using the first audio signal and the second audio signal to generate an output interference signal and an output audio signal including the desired audio content with the interference suppressed, estimating interference remaining in the output audio signal using the output interference signal, and subtracting the estimated interference from the output audio signal to generate a final output audio signal with the interference further suppressed.
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: August 22, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Devangi N Parikh, Muhammad Zubair Ikram
  • METHOD AND SYSTEM FOR INTERFERENCE SUPPRESSION USING BLIND SOURCE SEPARATION
    Publication number: 20140288926
    Abstract: A method of interference suppression is provided that includes receiving a first audio signal from a first audio capture device and a second audio signal from a second audio capture device wherein the first audio signal includes a first combination of desired audio content and interference and the second audio signal includes a second combination of the desired audio content and the interference, performing blind source separation using the first audio signal and the second audio signal to generate an output interference signal and an output audio signal including the desired audio content with the interference suppressed, estimating interference remaining in the output audio signal using the output interference signal, and subtracting the estimated interference from the output audio signal to generate a final output audio signal with the interference further suppressed.
    Type: Application
    Filed: June 10, 2014
    Publication date: September 25, 2014
    Inventors: Devangi N. Parikh, Muhammad Zubair Ikram
  • ADAPTIVE GAIN CONTROL BASED ON SIGNAL-TO-NOISE RATIO FOR NOISE SUPPRESSION
    Publication number: 20110188671
    Abstract: Systems and methods for suppressing noise in a signal are disclosed herein. In exemplary embodiments of the present invention, noise is suppressed using perceptual adaptive gain control based on signal-to-noise ratios. In other embodiment of the present invention, the gain of a signal is mapped as a function of an active estimate of the envelope of the signal.
    Type: Application
    Filed: October 15, 2010
    Publication date: August 4, 2011
    Applicant: Georgia Tech Research Corporation
    Inventors: David V. Anderson, Devangi N. Parikh, Sourabh Ravindran