Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2008-05-27
2008-05-27
Sheikh, Ayaz (Department: 2131)
Cryptography
Video cryptography
Video electric signal modification
C380S045000, C380S281000, C726S001000, C726S002000, C726S003000, C726S004000, C726S005000, C713S165000, C713S167000, C725S100000, C725S114000, C725S139000, C725S144000
Reexamination Certificate
active
07379548
ABSTRACT:
A system and a method for secure transmission of protected content to a subscriber, without requiring a smart card or other renewable security element to be in physical proximity of the recipient module of the subscriber, such as a set-top box for example. Therefore, the renewable security element may optionally be protected and controlled by the transmitter of the protected content, such as by the broadcaster for example.
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Bogot Carmi
Chechik David S.
Revital Dan
Tsuria Yossi
Doan Trang
NDS Limited
Sheikh Ayaz
Welsch & Katz, Ltd.
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