Method and apparatus for scrambling program data for furture viewing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Nov 6, 2003
app pub date -
Jan 26, 2001
filing date -
Jun 22, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for managing program data includes deriving a code word from an entitlement control message in the program data. The code word is re-scrambled with a local key. The code word that was re-scrambled with the local key is inserted into the entitlement control message.
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