Video bit scrambling

Details Video bit scrambling Video bit scrambling

2005-09-13

2005-09-13

Sheikh, Ayaz (Department: 2136)

Cryptography

Video cryptography

Copy protection or prevention

C705S056000

Reexamination Certificate

active

06944296

ABSTRACT:
In some embodiments, the invention includes a method to bit scramble a digital video signal. The method includes receiving blocks of the digital video signal and scrambling the blocks of the digital video signal responsive to a remote computer number. The remote computer number may be a processor number of a remote computer that may descramble the bit scrambled video signal. In other embodiments, the invention includes a method to descramble a bit scrambled video signal in a computer. The method includes receiving blocks of the bit scrambled video signal and descrambling the blocks of the bit scrambled video signal responsive to a remote computer number of the computer in which the descrambling is occurring. Additional embodiments are described and claimed.

REFERENCES:
patent: 4229818 (1980-10-01), Matyas et al.
patent: 5091942 (1992-02-01), Dent
patent: 5185794 (1993-02-01), Thompson et al.
patent: 5224166 (1993-06-01), Hartman, Jr.
patent: 5546461 (1996-08-01), Ibaraki et al.
patent: 5892825 (1999-04-01), Mages et al.
patent: 6173402 (2001-01-01), Chapman
patent: 2316278 (1998-02-01), None
Langelaar, G.C., “Overview of protection methods in existing TV and storage devices”, Technical University of Delft, Feb. 26, 1996, chapter 2, (www.elektronica.coolbegin.com/g.asp?id=3889).
Wool, Avishai, “Key Management for Encrypted Broadcast”, ACM, 2000, Lucent Technologies, entire document.
Cheng, Jieylin, et al, “STREAMTO: Streaming Content Using a Tamper-Resistant Token”, Univ. of Twente, 2003, entire document, www.ub.utwente.nl/webdocs/ctit/1/0000011c.pdf.
B. Schneier, Applied Cryptography, (1996 2nd Ed), John Wiley & Sons, Inc., pp. 189-211.
S. Beatty, “Intel, Ad Age to Sell Peeks at New Spots,” The Wall Street Journal, Oct. 7, 1998, p. B6.
C. Shi et al. “A Fast MPEG Video Encryption Algorithm,” ACM Multimedia '98 Bristol, UK, ACM 1-58113-036-8/98/0008.

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