Patents by Inventor Anupama Ghantasala

Anupama Ghantasala 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).

  • Detection of acoustic echo cancellation
    Patent number: 11601554
    Abstract: An echo cancellation detector for controlling an acoustic echo canceller that is configured to cancel an echo of a far-end signal in a near-end signal in a telephony system, the echo cancellation detector comprising a comparison generator configured to compare the far-end signal with the near-end signal, a decision unit configured to make a determination about a first acoustic echo canceller based on that comparison and a controller configured to control an operation of a second acoustic echo canceller in dependence on the determination.
    Type: Grant
    Filed: July 3, 2020
    Date of Patent: March 7, 2023
    Assignee: Imagination Technologies Limited
    Inventors: Senthil Kumar Mani, Srinivas Akella, Anupama Ghantasala
  • Detection of acoustic echo cancellation
    Patent number: 10841431
    Abstract: An echo cancellation detector for controlling an acoustic echo canceller that is configured to cancel an echo of a far-end signal in a near-end signal in a telephony system, the echo cancellation detector comprising a comparison generator configured to compare the far-end signal with the near-end signal, a decision unit configured to make a determination about a first acoustic echo canceller based on that comparison and a controller configured to control an operation of a second acoustic echo canceller in dependence on the determination.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: November 17, 2020
    Assignee: Imagination Technologies Limited
    Inventors: Senthil Kumar Mani, Srinivas Akella, Anupama Ghantasala
  • Detection of Acoustic Echo Cancellation
    Publication number: 20200336602
    Abstract: An echo cancellation detector for controlling an acoustic echo canceller that is configured to cancel an echo of a far-end signal in a near-end signal in a telephony system, the echo cancellation detector comprising a comparison generator configured to compare the far-end signal with the near-end signal, a decision unit configured to make a determination about a first acoustic echo canceller based on that comparison and a controller configured to control an operation of a second acoustic echo canceller in dependence on the determination.
    Type: Application
    Filed: July 3, 2020
    Publication date: October 22, 2020
    Inventors: Senthil Kumar Mani, Srinivas Akella, Anupama Ghantasala
  • Automatic tuning of a gain controller
    Patent number: 10244121
    Abstract: A gain control system for applying gain to a far-end signal, the system comprising: a signal identifier configured to detect an echo of the far-end signal in a microphone signal; and a path estimator configured to estimate a characteristic of an echo path of the detected echo, wherein: the signal identifier is further configured to detect a near-end signal from the microphone signal; and in response to detecting the near-end signal, the gain control system is configured to adjust the gain applied to the far-end signal in dependence on the estimated characteristic of the echo path.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: March 26, 2019
    Assignee: Imagination Technologies Limited
    Inventors: Senthil Kumar Mani, Anupama Ghantasala
  • Automatic Tuning of a Gain Controller
    Publication number: 20160127561
    Abstract: A gain control system for applying gain to a far-end signal, the system comprising: a signal identifier configured to detect an echo of the far-end signal in a microphone signal; and a path estimator configured to estimate a characteristic of an echo path of the detected echo, wherein: the signal identifier is further configured to detect a near-end signal from the microphone signal; and in response to detecting the near-end signal, the gain control system is configured to adjust the gain applied to the far-end signal in dependence on the estimated characteristic of the echo path.
    Type: Application
    Filed: October 30, 2015
    Publication date: May 5, 2016
    Inventors: Senthil Kumar Mani, Anupama Ghantasala
  • Detection of Acoustic Echo Cancellation
    Publication number: 20160094718
    Abstract: An echo cancellation detector for controlling an acoustic echo canceller that is configured to cancel an echo of a far-end signal in a near-end signal in a telephony system, the echo cancellation detector comprising a comparison generator configured to compare the far-end signal with the near-end signal, a decision unit configured to make a determination about a first acoustic echo canceller based on that comparison and a controller configured to control an operation of a second acoustic echo canceller in dependence on the determination.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 31, 2016
    Inventors: Senthil Kumar Mani, Srinivas Akella, Anupama Ghantasala