Dynamic relocation of the service data channel
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United States of America Patent
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Feb 9, 1999
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N/A
app pub date -
Nov 12, 1996
filing date -
Nov 12, 1996
priority date (Note) -
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Abstract
A method and apparatus for preventing unauthorized descrambling of cable programming includes selective relocation of the service data channel within the vertical blanking interval thereby preventing unauthorized descrambling of programming by conventional descramblers.
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