Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2011-01-11
2011-01-11
Brown, Christopher J (Department: 2439)
Cryptography
Video cryptography
Video electric signal modification
C713S182000
Reexamination Certificate
active
07869596
ABSTRACT:
A method of recording scrambled digital data comprising the steps consisting in:(a) receiving a scrambled digital data stream;(b) identifying in the data stream a control packet (ECM) containing at least one key (CW) for descrambling at least a part of the data of the stream;(c) storing the control packet in a table; and(d) recording the data stream and the said table on a data storage medium.A storage medium and a method of reading the recorded data are also proposed.
REFERENCES:
patent: 6662198 (2003-12-01), Satyanarayanan et al.
patent: 6956869 (2005-10-01), Kato
patent: 7079752 (2006-07-01), Leyendecker
patent: 2004/0042418 (2004-03-01), Hamada et al.
patent: 2004/0062398 (2004-04-01), Unger
patent: 2004/0083177 (2004-04-01), Chen et al.
patent: 1215905 (2002-06-01), None
patent: 04100220 (2004-05-01), None
patent: 2000-156838 (2000-06-01), None
patent: 2000-173181 (2000-06-01), None
patent: 2001-189914 (2001-07-01), None
patent: WO 03/107665 (2003-12-01), None
Abelard Franck
Diascorn Jean-Louis
Diehl Eric
Vial Jean-François
Brown Christopher J
Oplach Joseph J.
Shedd Robert D.
Thomson Licensing
LandOfFree
Method of recording scrambled digital data, storage medium... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of recording scrambled digital data, storage medium..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of recording scrambled digital data, storage medium... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2632548