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:
Jan. 12, 2010
Filed:
Dec. 23, 2003
Applicants:
Gilles Dubroeucq, Paris, FR;
Jean-pierre Vigarie, Cesson-Sevigne, FR;
Inventors:
Gilles Dubroeucq, Paris, FR;
Jean-Pierre Vigarie, Cesson-Sevigne, FR;
Assignee:
Viacess, Paris la Defense Cedex, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/16 (2006.01); H04N 7/167 (2006.01); H04L 9/00 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to an access control method controlling access to a broadcast digital dataflow previously scrambled. The method according to the invention includes the following steps: