Patents by Inventor Frederic Lefebvre

Frederic Lefebvre 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).

  • Publication number: 20100118191
    Abstract: The application concerns a method for transmitting video data in a data stream and associated metadata, said metadata representing associated video data structure. The method comprises the steps of—determining the structure of the video data, —splitting said structure into chunks in an incremental manner, —transmitting said chunks in the data stream at time intervals before the video data it is related to. The application concerns also a method for transmitting fingerprint information associated with video data into a video data stream. The method comprises the steps of: —determining fingerprint associated with at least one frame of said video data, —inserting at least a message into the video stream comprising said fingerprint information.
    Type: Application
    Filed: April 10, 2008
    Publication date: May 13, 2010
    Inventors: Louis Chevallier, Lionel Oisel, Francois Le Clerc, Frederic Lefebvre
  • Publication number: 20090013189
    Abstract: A system for protection against unauthorized modifications of digital content, in particular image content, in which a content processing system retrieves content, a fingerprint for the content and at least one modification limit expressing authorized modifications to the content. The content may then be modified, but before saving or exportation is allowed, a second fingerprint is calculated, and the difference between the fingerprints is compared with the at least one modification limit. If the difference is within the allowed bounds, then saving or exportation is allowed; if not, it is prevented. Also provided are a method and a content consumer device performing essentially the same steps before allowing rendering of the content.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 8, 2009
    Inventors: Michel Morvan, Alain Durand, Frederic Lefebvre
  • Publication number: 20080317278
    Abstract: The invention concerns a method for computing a fingerprint of a video sequence. The method comprises the steps of—Computation of a visual digest for each frame of the video, —Computation of the distance between the visual digest of each frame of the video in order to detect shots, —Detection, for each detected shot of the video, of a frame, called stable frame, having the smallest content variation of the shot, —Calculation of a local fingerprint for said stable frame.
    Type: Application
    Filed: January 16, 2007
    Publication date: December 25, 2008
    Inventors: Frederic Lefebvre, Claire-Helene Demarty, Lionel Oisel, Ayoub Massoudi
  • Publication number: 20050042330
    Abstract: The invention concerns a food composition, in particular an animal food composition, comprising a coating designed to provide a roasted appearance to the cooked product, said coating including at least a pigment or colorant source and a protein source.
    Type: Application
    Filed: January 14, 2003
    Publication date: February 24, 2005
    Inventors: Jean-Marie Laborbe, Frederic Lefebvre