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System and method for controlled copying and moving of content between devices and domains based on conditional encryption of content key depending on usage state |
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2017-10-17 |
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System and method for controlled copying and moving of content between devices and domains based on conditional encryption of content key depending on usage state |
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— |
2012-08-07 |
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2012-04-17 |
| 7844821 |
System and method for controlled copying and moving of content between devices and domains based on conditional encryption of content key depending on usage state |
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2010-11-30 |
| 7487363 |
System and method for controlled copying and moving of content between devices and domains based on conditional encryption of content key depending on usage |
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2009-02-03 |
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2008-09-02 |
