Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2001-08-15
2008-12-09
Moise, Emmanuel L. (Department: 2437)
Cryptography
Video cryptography
Video electric signal modification
Reexamination Certificate
active
07463737
ABSTRACT:
A system for processing multimedia channels is described comprising: transmitting decryption keys for decrypting the multimedia channels, the keys encrypted in both a first encryption format and a second encryption format; the keys encrypted in the first encryption format being decryptable by a first type of multimedia receiver; and the keys encrypted in the second encryption format being decryptable by a second type of multimedia receiver.
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Gillon William M.
Perlman Stephen G.
Christensen Kory D.
Digeo, Inc.
Khoshnoodi Nadia
Moise Emmanuel L.
Stoel Rives LLP
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