Copy-protecting management using a user scrambling key

Details Copy-protecting management using a user scrambling key Copy-protecting management using a user scrambling key

2005-06-28

2005-06-28

Hayes, John W. (Department: 3621)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C380S200000, C380S223000, C380S241000, C380S044000, C725S025000, C725S030000

Reexamination Certificate

active

06912513

ABSTRACT:
The present invention is a method and apparatus for providing copy protection for a content. A descrambler descrambles the content delivered by a content provider using a local key. A key generator is coupled to the descrambler to generate the local key from a programmable user key according to an authorization code provided by the content provider.

REFERENCES:
patent: 4634808 (1987-01-01), Moerder
patent: 4757534 (1988-07-01), Matyas et al.
patent: 4785361 (1988-11-01), Brotby
patent: 4887296 (1989-12-01), Horne
patent: 4995080 (1991-02-01), Bestler et al.
patent: 5018197 (1991-05-01), Jones et al.
patent: 5138659 (1992-08-01), Kelkar et al.
patent: 5144662 (1992-09-01), Welmer
patent: 5325432 (1994-06-01), Gardeck et al.
patent: 5420866 (1995-05-01), Wasilewski
patent: 5473692 (1995-12-01), Davis
patent: 5485577 (1996-01-01), Eyer et al.
patent: 5539828 (1996-07-01), Davis
patent: 5568552 (1996-10-01), Davis
patent: 5574787 (1996-11-01), Ryan
patent: 5608448 (1997-03-01), Smoral et al.
patent: 5615265 (1997-03-01), Coutrot
patent: 5652795 (1997-07-01), Dillon et al.
patent: 5666293 (1997-09-01), Metz et al.
patent: 5732346 (1998-03-01), Lazaridis et al.
patent: 5751813 (1998-05-01), Dorenbos
patent: 5757909 (1998-05-01), Park
patent: 5768539 (1998-06-01), Metz et al.
patent: 5796824 (1998-08-01), Hasebe et al.
patent: 5796829 (1998-08-01), Newby et al.
patent: 5796840 (1998-08-01), Davis
patent: 5802176 (1998-09-01), Audebert
patent: 5805712 (1998-09-01), Davis
patent: 5839823 (1998-11-01), Hou et al.
patent: 5850218 (1998-12-01), LaJoie et al.
patent: 5852290 (1998-12-01), Chaney
patent: 5894516 (1999-04-01), Brandenburg
patent: 5915018 (1999-06-01), Aucsmith
patent: 5917915 (1999-06-01), Hirose
patent: 5949877 (1999-09-01), Traw et al.
patent: 5949881 (1999-09-01), Davis
patent: 5982892 (1999-11-01), Hicks et al.
patent: 6021201 (2000-02-01), Bakhle et al.
patent: 6028932 (2000-02-01), Park
patent: 6061451 (2000-05-01), Hirofumi
patent: 6069647 (2000-05-01), Sullivan et al.
patent: 6069957 (2000-05-01), Richards
patent: 6088450 (2000-07-01), Davis et al.
patent: 6105134 (2000-08-01), Pinder et al.
patent: 6118873 (2000-09-01), Lotspiech et al.
patent: 6134551 (2000-10-01), Aucsmith
patent: 6154206 (2000-11-01), Ludtke
patent: 6157719 (2000-12-01), Wasilewski et al.
patent: 6185546 (2001-02-01), Davis
patent: 6189096 (2001-02-01), Haverty
patent: 6192131 (2001-02-01), Geer et al.
patent: 6199053 (2001-03-01), Herbert et al.
patent: 6209098 (2001-03-01), Davis
patent: 6226618 (2001-05-01), Downs et al.
patent: 6229895 (2001-05-01), Son et al.
patent: 6230194 (2001-05-01), Frailong et al.
patent: 6230266 (2001-05-01), Perlman et al.
patent: 6256747 (2001-07-01), Inohara et al.
patent: 6263506 (2001-07-01), Ezaki et al.
patent: 6266416 (2001-07-01), Sigbjornsen et al.
patent: 6266480 (2001-07-01), Ezaki et al.
patent: 6272538 (2001-08-01), Holden et al.
patent: 6282649 (2001-08-01), Lambert et al.
patent: 6292568 (2001-09-01), Akins et al.
patent: 6292892 (2001-09-01), Davis
patent: 6307937 (2001-10-01), Dillon et al.
patent: 6314425 (2001-11-01), Serbinis et al.
patent: 6351538 (2002-02-01), Uz
patent: 6351813 (2002-02-01), Mooney et al.
patent: 6367016 (2002-04-01), Lambert et al.
patent: 6389533 (2002-05-01), Davis et al.
patent: 6389537 (2002-05-01), Davis et al.
patent: 6516412 (2003-02-01), Wasilewski et al.
patent: 6587561 (2003-07-01), Sered et al.
patent: 411243534 (1999-09-01), None
patent: 2000350181 (2000-12-01), None
Axner, David H., “Security Devices Prevent the Compromise of Network Resources”, Networking Management, vol. 8, No. 2, p. 56, Feb. 1990.
Anonymous, “Oxford University Press To Sell And Distribute Textbooks Online”, Electronic Education Report, vol. 4, No. 1, Jan. 8, 1997.

Affiliated with

Also associated with

Rating

Copy-protecting management using a user scrambling key does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Copy-protecting management using a user scrambling key, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Copy-protecting management using a user scrambling key will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3504838