The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2009
Filed:
Apr. 26, 2005
Laurent Blonde, Thorigné-Fouillard, FR;
Didier Doyen, La Bouexière, FR;
Thierry Borel, Noyal sur Vilaine, FR;
Jonathan Kervec, Paimpont, FR;
Laurent Blonde, Thorigné-Fouillard, FR;
Didier Doyen, La Bouexière, FR;
Thierry Borel, Noyal sur Vilaine, FR;
Jonathan Kervec, Paimpont, FR;
Thomson Licensing, Boulogne Billancourt, FR;
Abstract
The present invention relates to an apparatus and a device for displaying images. It is known to inlay a pattern of watermark type into the sequence of images to be displayed so as to combat the copying of images by picture-taking. This inlaying consists in modulating the intensity of the pixels of the pattern about the value to be displayed at a high frequency which renders the pattern invisible to the human eye but which generates artefacts on the sequence filmed by the camcorder. This technique poses problems when the sequence of images to be displayed comprises scenes in motion. The pattern appears since the integration carried out by the eye at the moment of display of the images is not correct. According to the invention, it is proposed that the patterns to be inlayed be motion compensated.