Patents by Inventor Imen Mezghani-Marrakchi

Imen Mezghani-Marrakchi 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 Device for Cancelling Acoustic Echo by Audio Watermarking
    Publication number: 20120213380
    Abstract: A method of cancelling acoustic echo in a first signal comprising an echo signal of a second signal, comprising: inserting, in an inaudible manner, into the second signal a pseudo-random sequence whose circular autocorrelation comprises a unit impulse and a continuous component; characterizing, in the first signal, by means of the inserted sequence, an acoustic channel followed by the echo signal; estimating the echo signal in the first signal by means of the characterization of the acoustic channel; and cancelling the echo signal by means of the obtained estimation.
    Type: Application
    Filed: October 27, 2010
    Publication date: August 23, 2012
    Applicant: UNIVERSITE PARIS DESCARTES
    Inventors: Gaël Mahé, Imen Mezghani-Marrakchi, Meriem Jaidane, Monia Turki, Sonia Larbl Djaziri