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. 15, 2009
Filed:
Nov. 14, 2002
Applicants:
David Leporini, Rungis, FR;
Michel Angel, Paris, FR;
Jean-bernard Beuque, Bois Colombes, FR;
Inventors:
Assignee:
THOMSON Licensing S.A., Boulogne-Billancourt, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for processing data involving receiving a scrambled program and encrypted data including at least one control word used to descramble the scrambled program at a receiver/decoder operatively connected to a mass storage device. If a user does not initially have the necessary access rights, the scrambled program and the encrypted data are stored by the receiver/decoder. When the user obtains the access rights, the encrypted data is read and the at least one control word is extracted. The encrypted data is then replaced by the control word.