Data management method

Details Data management method Data management method

2006-12-05

2006-12-05

Reagan, James A (Department: 3621)

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

C708S313000, C341S155000, C341S122000, C341S061000, C341S110000, C341S118000, C341S120000, C341S161000, C375S222000, C375S350000

Reexamination Certificate

active

07145492

ABSTRACT:
A data management method that by encrypting and distributing digital content prevents copyright infringement, and that prevents authorization information for decrypting the encrypted digital content from being damaged or otherwise lost. Encrypted content45is prepared by encrypting digital content11with a content key44.A portion of the digital content11is extracted as sample data41.A secret key46,by which the content key44is encrypted with user information14,is embedded as invisible information into the sample data41,thus preparing watermarked sample data47.The watermarked sample data47is synthesized with the encrypted content45to form synthesized data48.The synthesized data48is distributed.

REFERENCES:
patent: 6233684 (2001-05-01), Stefik et al.
patent: 10-164550 (1998-06-01), None
“Digital Watermarking and Tracking” Anonymous. (Jan. 26, 1998) http://www.webreference.com/content/watermarks/tracking.html retrieved online.
Japanese Office Action issued by the Japanese Patent Office on May 6, 2005 in the Japanese Patent Application No. 11-147769 related to the present patent application (3 pages).

Affiliated with

Also associated with

Rating

Data management method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data management method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data management method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3697266