Cryptography – Video cryptography – Video electric signal modification
Reexamination Certificate
2008-12-03
2010-12-28
Smithers, Matthew B (Department: 2437)
Cryptography
Video cryptography
Video electric signal modification
C380S211000, C725S025000, C725S031000
Reexamination Certificate
active
07860250
ABSTRACT:
A server in a subscriber television network receives service instances from a headend of the subscriber television network. The server is adapted to encrypt according to an encryption scheme and re-transmit service instances to a client-receiver. The server reformats the service instance from a first format into a second format the client-receiver can access the service instance.
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Gaul Michael A.
Pinder Howard G.
Russ Samuel H.
Wasilewski Anthony J.
Merchant & Gould
Smithers Matthew B
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