Electrical computers and digital processing systems: support – Data processing protection using cryptography – By stored data protection
Reexamination Certificate
2006-06-05
2010-06-29
Lanier, Benjamin E (Department: 2432)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
By stored data protection
C726S027000, C726S033000
Reexamination Certificate
active
07747875
ABSTRACT:
An apparatus for processing data and content includes at least one drive and a player (that may be implemented by software). At least some of the content is protected using a content scrambling scheme such as audio or video watermarking. The drive and player cooperate to operate in a lockable mode wherein if protected content is provided to the drive, the drive and player are interlocked so that the content is presented by the player only in accordance with consistent with protection scheme being used, and cannot be presented by any other player. Moreover, in the locked mode, protected content may not be accepted from any other drive. The drive and player are switched to an unlockded mode by presenting to the drive unprotected content.
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patent: 5700999 (1997-12-01), Streicher et al.
patent: 7102973 (2006-09-01), Carson
patent: 2005/0246529 (2005-11-01), Hunt et al.
patent: 2006/0143453 (2006-06-01), Imamoto et al.
Noble et al “The case for transient authentication”, Proceedings of the 10th ACM SIGOPS European Workshop, Saint-Emillion, France, Sep. 2002.
Cookson Christopher J.
Stephens Spencer
Armouche Hadi
Gottlieb Rackman & Reisman P.C.
Lanier Benjamin E
Warner Bros. Entertainment Inc.
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