Method and equipment for allocating to a television program, which is already conditionally accessed, a complementary conditional access
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United States of America Patent
Stats
-
Oct 23, 2001
Grant Date -
N/A
app pub date -
Feb 19, 1999
filing date -
Aug 20, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and an equipment for allocating to a television program, which is already conditionally accessed, a complementary conditional access. The television program is first received by means provided with access entitlements and the control words are restored. Complementary access control messages and complementary entitlement management messages corresponding to a complementary access control system are built up. The initial unmodified television program is rebroadcast, together with the complementary messages related to the complementary access control system.
First Claim
Family
International Classification(s)
Cited Art Landscape
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