Cryptography – Video cryptography – Copy protection or prevention
Reexamination Certificate
2008-06-10
2008-06-10
Moazzami, Nasser (Department: 2136)
Cryptography
Video cryptography
Copy protection or prevention
C713S169000
Reexamination Certificate
active
07386127
ABSTRACT:
This invention discloses a secure recording medium having at least one of audio, video and software content, comprising a plurality of media recording disks (DVD's) with a disk security chip embedded in each the DVD, each the disk chip comprising a security key, wherein at least two of the DVD's have different disk security keys.A method for protecting access to content recorded on a media recording disk (DVD) is also disclosed.
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Hoffman Brandon S
Ladas and Parry LLP
Moazzami Nasser
NDS Limited
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