Recording method of digital magnetic recording medium for copyri

Details Recording method of digital magnetic recording medium for copyri Recording method of digital magnetic recording medium for copyri

1996-01-05

1998-11-03

Buczinski, Stephen C.

Cryptography

Cryptanalysis

380 10, H04N 7167

Patent

active

058320849

ABSTRACT:
In a recording method of a digital magnetic recording medium for a copyright protection and a variable speed playback when a user records a digital broadcasting program by a digital video cassette recorder (DVCR) or variable speed playback of a rental tape while performing a copyright protection function, a video track of a video tape is separated into a scrambled data region where scrambled data is recorded and a descrambling region where descrambling information for descrambing the scrambled data is recorded to record the video data on the corresponding region. When this method is adopted with a proper copyright protection system, the copyright of the program provider can be protected, and the lowering of the performance is also minimized during the user's variable speed playback of the video tape to which the copyright protection function is adopted, thereby satisfying both the program provider and the user.

REFERENCES:
patent: 5546461 (1996-08-01), Ibaraki et al.
patent: 5600721 (1997-02-01), Kitazato

Affiliated with

Also associated with

Rating

Recording method of digital magnetic recording medium for copyri does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Recording method of digital magnetic recording medium for copyri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recording method of digital magnetic recording medium for copyri will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-698986