Interactive video distribution systems – Access control or blocking – With encryption or scrambling of video signal
Reexamination Certificate
2011-07-05
2011-07-05
Bui, Kieu Oanh (Department: 2425)
Interactive video distribution systems
Access control or blocking
With encryption or scrambling of video signal
C380S200000, C380S201000, C380S202000, C380S203000, C726S026000, C726S027000, C726S030000, C725S025000
Reexamination Certificate
active
07975280
ABSTRACT:
A conditional access control apparatus for inserting descrambling messages and impulse authorizations to enable requesting subscribers to utilize requested scrambled content. The apparatus includes a content and asset storage module for storing content and assets, and a pre-encryption module for encrypting content to be stored in said content device. A transport processor inserts stored content into a forward application transport channel (FATC), and a controller interacts with a requesting subscriber and inserts into the FATC descrambling messages and impulse authorizations enabling the requesting subscriber to utilize requested scrambled content.
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Bui Kieu Oanh
Cox Communications, Inc.
Merchant & Gould
Saint Cyr Jean D
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