Patents by Inventor Anirudha Kalya

Anirudha Kalya 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).

  • System and method for acoustic echo cancellation
    Patent number: 10135968
    Abstract: A system and method for acoustic echo cancellation is provided. Embodiments may include receiving, at one or more microphones, an audio reference signal from an audio speaker. Embodiments may also include filtering the audio reference signal using one or more adaptive audio filters. Embodiments may further include analyzing a level of signal energy of the audio reference signal with regard to time, frequency and audio channel to identify at least one maximum error contribution point. Embodiments may also include updating the one or more adaptive audio filters based upon, at least in part, the analyzed audio reference signal.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: November 20, 2018
    Assignee: Nuance Communications, Inc.
    Inventors: Tobias Wolff, Anirudha Kalya
  • SYSTEM AND METHOD FOR ACOUSTIC ECHO CANCELLATION
    Publication number: 20160044159
    Abstract: A system and method for acoustic echo cancellation is provided. Embodiments may include receiving, at one or more microphones, an audio reference signal from an audio speaker. Embodiments may also include filtering the audio reference signal using one or more adaptive audio filters. Embodiments may further include analyzing a level of signal energy of the audio reference signal with regard to time, frequency and audio channel to identify at least one maximum error contribution point. Embodiments may also include updating the one or more adaptive audio filters based upon, at least in part, the analyzed audio reference signal.
    Type: Application
    Filed: April 15, 2013
    Publication date: February 11, 2016
    Inventors: Tobias Wolff, Anirudha Kalya