发明名称 |
SYSTEM AND METHOD FOR EXPRESSING USAGE RIGHTS USING MODULATED SIGNALS |
摘要 |
A system and method for creating a rights expression for association with an item for use in a system for controlling use of the item in accordance with the rights expression, including specifying rights expression information indicating a manner of use of an item, the rights expression information including at least one element, the element having a variable and corresponding value for the variable; and performing an encoding process, including determining an identifier associated with a template corresponding to the rights expression information, extracting from the rights expression information the value for the variable corresponding to the element, and encoding a license adapted to be enforced on a device based on the variable and the identifier, the license including an identification of the template and the value for the variable. |
申请公布号 |
EP1490819(A4) |
申请公布日期 |
2006.05.31 |
申请号 |
EP20030744684 |
申请日期 |
2003.03.14 |
申请人 |
CONTENTGUARD HOLDINGS, INC. |
发明人 |
TADAYON, BIJAN;GILLIAM, CHARLES, P.;LAO, GUILLERMO;HAM, MANUEL;RALEY, MICHAEL, C. |
分类号 |
G06F1/00;G06F21/10;G06F7/00;G06F17/30;G06Q20/38;G06Q40/00;H04K1/00;H04L9/00;H04L9/32;H04N21/254;H04N21/835;H04N21/8355 |
主分类号 |
G06F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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