Patents by Inventor Faisal Hassan Khan

Faisal Hassan Khan 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).

  • Apparatus and method for watermarking a call signal
    Patent number: 11269976
    Abstract: An apparatus and method for determining a source of an unauthorized copy of speech signals in a conference call session. A conference bridge receives a speech signal during a conference call session with a plurality of end user devices attending. The conference bridge provides one or more dynamic, end user specific watermarks corresponding to the one or more end user devices. Each watermark is adjusted based on characteristics of the speech signal to make the watermark imperceptible to a human being. The speech signal is then embedded with the adjusted watermark in real time to generate a modified speech signal.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: March 8, 2022
    Assignee: Saudi Arabian Oil Company
    Inventor: Faisal Hassan Khan
  • APPARATUS AND METHOD FOR WATERMARKING A CALL SIGNAL
    Publication number: 20200302036
    Abstract: An apparatus and method for determining a source of an unauthorized copy of speech signals in a conference call session. A conference bridge receives a speech signal during a conference call session with a plurality of end user devices attending. The conference bridge provides one or more dynamic, end user specific watermarks corresponding to the one or more end user devices. Each watermark is adjusted based on characteristics of the speech signal to make the watermark imperceptible to a human being. The speech signal is then embedded with the adjusted watermark in real time to generate a modified speech signal.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 24, 2020
    Inventor: Faisal Hassan Khan