Methods and systems for maintaining an encrypted video...

Details Methods and systems for maintaining an encrypted video... Methods and systems for maintaining an encrypted video...

2007-10-16

2007-10-16

Moise, Emmanuel L. (Department: 2137)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

Having separate add-on board

Reexamination Certificate

active

10631023

ABSTRACT:
Methods and systems protect digital content such as premium content like movies, programs, and other types of digital audio/visual content. In some embodiments, an architecture and related methods protect content by maintaining the content in encrypted form, whether the content resides in video card memory (referred to herein as “VRAM”), or some other local or remote memory subsystem. The methods and systems enable video card co-processors, such as the graphics processing unit (GPU) to manipulate the encrypted content or data. In various embodiments, the content is maintained in an encrypted format and is unencrypted only when the GPU operates upon the data. After the GPU operates upon the data, the resultant data is re-encrypted and written to memory.

REFERENCES:
patent: 4757534 (1988-07-01), Matyas et al.
patent: 4962533 (1990-10-01), Krueger et al.
patent: 5297206 (1994-03-01), Orton
patent: 5321749 (1994-06-01), Virga
patent: 5379344 (1995-01-01), Larsson et al.
patent: 5537467 (1996-07-01), Cheng et al.
patent: 5572235 (1996-11-01), Mical et al.
patent: 5577125 (1996-11-01), Salahshour et al.
patent: 5727062 (1998-03-01), Ritter
patent: 5825879 (1998-10-01), Davis
patent: 5881287 (1999-03-01), Mast
patent: 5898779 (1999-04-01), Squilla et al.
patent: 5963909 (1999-10-01), Warren et al.
patent: 6044182 (2000-03-01), Daly et al.
patent: 6047342 (2000-04-01), Depew
patent: 6055314 (2000-04-01), Spies et al.
patent: 6064739 (2000-05-01), Davis
patent: 6072873 (2000-06-01), Bewick
patent: 6115819 (2000-09-01), Anderson
patent: 6246768 (2001-06-01), Kim
patent: 6330624 (2001-12-01), Cromer et al.
patent: 6408390 (2002-06-01), Saito
patent: 6421733 (2002-07-01), Tso et al.
patent: 6731756 (2004-05-01), Pizano et al.
patent: 6859832 (2005-02-01), Gecht et al.
patent: 6865431 (2005-03-01), Hirota et al.
patent: 6934389 (2005-08-01), Strasser et al.
patent: 7024558 (2006-04-01), Satake
patent: 7055038 (2006-05-01), Porter et al.
patent: 7096204 (2006-08-01), Chen et al.
patent: 7197648 (2007-03-01), Evans
patent: 7202875 (2007-04-01), Foehr et al.
patent: 7206940 (2007-04-01), Evans et al.
patent: 2002/0012432 (2002-01-01), England et al.
patent: 2002/0103964 (2002-08-01), Igari
patent: 2002/0136408 (2002-09-01), Garcia
patent: 2002/0169979 (2002-11-01), Zimmer
patent: 2003/0017846 (2003-01-01), Estevez et al.
patent: 2003/0059047 (2003-03-01), Iwamura
patent: 2003/0093683 (2003-05-01), Wong et al.
patent: 2005/0102264 (2005-05-01), Nason et al.
patent: 2005/0102266 (2005-05-01), Nason et al.
patent: 2005/0204165 (2005-09-01), Nason et al.
patent: 2006/0123248 (2006-06-01), Porter et al.
patent: WO 02/25416 (2002-03-01), None
“High-bandwidth Digital Content Protection System, Revision 1.0” Feb. 17, 2000, Intel Corporation, Hillsboro, OR 97124, XP002305414 Retrieved from the Internet: URL: http://www.digital-cp.com/data/HDCP10.pdf>.
Abhijit K. Choudhury et al., “Copyright Protection for Electronic Publishing Over Computer Networks,” IEEE Network, May/Jun. 1995, pp. 12-20.

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