Information security – Prevention of unauthorized use of data including prevention... – Limitations on number or amount of copies
Reexamination Certificate
2004-08-11
2009-08-18
Moise, Emmanuel L (Department: 2437)
Information security
Prevention of unauthorized use of data including prevention...
Limitations on number or amount of copies
C713S153000, C380S203000, C380S287000
Reexamination Certificate
active
07578001
ABSTRACT:
Even if copy control information in contents is Never Copy (CCI=11) and the like, a recording apparatus which is not in conformity with a copy protection system (CPS) changes the copy control information to Copy Free (CCI=00) and records the contents. A recording and reproducing apparatus which is in conformity with the CPS embeds, in a transmission signal thereof, path information indicating a path through which the contents pass, except for the contents which are originally set to Copy Free (CCI=00). Thereby, when the path information is detected though the copy control information is Copy Free (CCI=00), it is determined that the path information passed through an illegal apparatus, and hence recording can be inhibited.
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Drinker Biddle & Reath LLP
Moise Emmanuel L
Pioneer Corporation
Williams Jeffery
LandOfFree
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