Information security – Prevention of unauthorized use of data including prevention... – Limitations on number or amount of copies
Reexamination Certificate
2007-07-24
2007-07-24
Moise, Emmanuel L. (Department: 2137)
Information security
Prevention of unauthorized use of data including prevention...
Limitations on number or amount of copies
C369S053210
Reexamination Certificate
active
09640360
ABSTRACT:
A copy-resistant read-only digital optical disc having encrypted digital data. The copy-resistant read-only digital optical disc includes a digital work, a variable user data format encoding said digital work after encryption with a variable software algorithm, an implementation of said variable software algorithm, and an implementation of said variable user data format encoded in a default format. The encrypted digital data is read on an adaptable digital optical disc player, which is adaptable to a user data format described on said copy-resistant read-only digital optical disc made in accordance with this invention. A copy-resistant read-only digital optical disc made in accordance with this invention will provide necessary user data format information on the disc in a default format, which is always accessible by an adaptable player.
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Moradzadeh, Michael, “Licensing Requirements for the CSS DVD Copy Protection Method”, Intel Corporation, 1997, pp. 1-15.
Intel Corporation, International Business Machines Corporation, Matsushita Electric Industrial Co., Ltd., Toshiba Corporation, “Content Protection System Architecture, A Comprehensive Framework for Content Protection”, unknown, pp. 1-19.
Nelson Terry J.
Zou Han
Davis Zachary A.
Harness Dickey & Pierce PLC
Moise Emmanuel L.
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