Patents by Inventor Devangi Nikunj Parikh

Devangi Nikunj 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, system and computer program product for suppressing noise using multiple signals
    Patent number: 8880394
    Abstract: In response to a first envelope within a kth frequency band of a first channel, a speech level within the kth frequency band of the first channel is estimated. In response to a second envelope within the kth frequency band of a second channel, a noise level within the kth frequency band of the second channel is estimated. A noise suppression gain for a time frame n is computed in response to the estimated speech level for a preceding time frame, the estimated noise level for the preceding time frame, the estimated speech level for the time frame n, and the estimated noise level for the time frame n. An output channel is generated in response to multiplying the noise suppression gain for the time frame n and the first channel.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: November 4, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Devangi Nikunj Parikh, Muhammad Zubair Ikram, Takahiro Unno
  • Method and system for interference suppression using blind source separation
    Patent number: 8787591
    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: September 10, 2010
    Date of Patent: July 22, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Devangi Nikunj Parikh, Muhammad Zubair Ikram
  • Method, System and Computer Program Product for Suppressing Noise Using Multiple Signals
    Publication number: 20130046535
    Abstract: In response to a first envelope within a kth frequency band of a first channel, a speech level within the kth frequency band of the first channel is estimated. In response to a second envelope within the kth frequency band of a second channel, a noise level within the kth frequency band of the second channel is estimated. A noise suppression gain for a time frame n is computed in response to the estimated speech level for a preceding time frame, the estimated noise level for the preceding time frame, the estimated speech level for the time frame n, and the estimated noise level for the time frame n. An output channel is generated in response to multiplying the noise suppression gain for the time frame n and the first channel.
    Type: Application
    Filed: August 20, 2012
    Publication date: February 21, 2013
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Devangi Nikunj Parikh, Muhammad Zubair Ikram, Takahiro Unno
  • Method and System for Interference Suppression Using Blind Source Separation
    Publication number: 20110064242
    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: September 10, 2010
    Publication date: March 17, 2011
    Inventors: Devangi Nikunj Parikh, Muhammad Zubair Ikram