Patents by Inventor Noémie Lechable

Noémie Lechable 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).

  • Digital watermarking method
    Patent number: 8270485
    Abstract: The invention relates to a method of watermarking a binary stream resulting from the encoding of a set of coefficients comprising at least one coefficient encoded by predictive coding, called predictively coded coefficient. The method comprises the steps of: a) identifying, in the binary stream, a first binary word representing the predictively coded coefficient; b) computing a modified coefficient from the predictively coded coefficient on the basis of at least one watermarking bit; c) encoding the modified coefficient into a second binary word; and d) replacing in the binary stream the first binary word with the second binary word.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: September 18, 2012
    Assignee: Thomson Licensing
    Inventors: Séverine Baudry, Philippe Nguyen, Noémie Lechable
  • Digital watermarking method
    Patent number: 8228987
    Abstract: The invention relates to a method of watermarking a binary stream resulting from the encoding of a set of coefficients comprising at least one coefficient encoded by predictive coding, called predictively coded coefficient. The method comprises the steps of: a) identifying, in the binary stream, a first binary word representing the predictively coded coefficient; b) computing a modified coefficient from the predictively coded coefficient on the basis of at least one watermarking bit; c) encoding the modified coefficient into a second binary word; and d) replacing in the binary stream the first binary word with the second binary word.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: July 24, 2012
    Assignee: Thomson Licensing
    Inventors: Séverine Baudry, Philippe Nguyen, Noémie Lechable