Patents by Inventor Krishna Prabhu N. V. R. Telukuntla

Krishna Prabhu N. V. R. Telukuntla 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, apparatus and articles incorporating a step size control technique for echo signal cancellation
    Patent number: 7515704
    Abstract: A novel technique for canceling echo signal in teleconferencing applications. In one example embodiment, a low complexity double-talk and noise robust frequency domain adaptive filter is used to cancel the echo signal during the teleconferencing applications. The adaptive filter computes step sizes using power spectral density functions of error and far end signals using an equation, which does not require a single talk/double detectors and a voice activity detector. The computed step sizes are then used by the adaptive filter (PBFDAF) to cancel the echo signal.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: April 7, 2009
    Inventor: Krishna Prabhu N. V. R. Telukuntla