Patents by Inventor Hellosoft, Inc.

Hellosoft, Inc. 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 DETECTION OF ONSET OF NEAR-END SIGNAL IN AN ECHO CANCELLATION SYSTEM
    Publication number: 20130218558
    Abstract: A method, a system and a computer program product for fast detection of the onset of a near-end signal is provided. An Acoustic Echo Canceller (AEC) attenuates an acoustic echo present in a tele-communication network. The AEC includes an adaptive filter that estimates the acoustic echo and generates an error signal. The error signal is the difference between the acoustic echo and the estimate of acoustic echo plus a near-end signal, if present. The method comprises computing an onset indicator parameter from the error signal and the estimate of acoustic echo. Several other parameters are subsequently calculated by using the onset indicator parameter, the error signal and the estimate of acoustic echo.
    Type: Application
    Filed: December 11, 2012
    Publication date: August 22, 2013
    Applicant: HELLOSOFT, INC.
    Inventor: Hellosoft, Inc.