Digital copying method and storage device for digital content

Details Digital copying method and storage device for digital content Digital copying method and storage device for digital content

2007-05-29

2007-05-29

Moazzami, Nasser (Department: 2136)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C380S028000

Reexamination Certificate

active

10013607

ABSTRACT:
The present invention provides a digital copying method for preventing complete copying by the use of digital copying. A data generating portion includes a storage device which generates a plurality of digital copies having mutually different amounts of effective information from original digital data, and stores the set of digital content having the digital copies encrypted different numbers of times in a memory. A digital output portion decrypts the set of digital content retrieved from the memory a prescribed number of times, making usable and outputting one of the digital copies in the set of digital content. An analog output portion extracts the digital copy that has been encrypted zero times from the set of digital content, converts that copy to analog data, and outputs that data.

REFERENCES:
patent: 5991500 (1999-11-01), Kanota et al.
patent: 6334186 (2001-12-01), Uematsu
patent: 6598164 (2003-07-01), Shepard
patent: 6711553 (2004-03-01), Deng et al.
patent: 6748537 (2004-06-01), Hughes
patent: 6862582 (2005-03-01), Harada et al.

Affiliated with

Also associated with

Rating

Digital copying method and storage device for digital content does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital copying method and storage device for digital content, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital copying method and storage device for digital content will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3808393