Copy-protecting management using a user scrambling key
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United States of America Patent
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Jun 28, 2005
Grant Date -
N/A
app pub date -
Oct 29, 1999
filing date -
Oct 29, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention is a method and apparatus for providing copy protection for a content. A descrambler descrambles the content delivered by a content provider using a local key. A key generator is coupled to the descrambler to generate the local key from a programmable user key according to an authorization code provided by the content provider.
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