发明名称 |
Content rendering apparatus |
摘要 |
A system for controlling the distribution and use of digital works using digital tickets. In the present invention, a "digital ticket" is used to entitle the ticket holder to exercise some usage right with respect to a digital work. Usage rights are used to define how a digital work may be used or distributed. Each usage right may specify a digital ticket which must be present before the right may be exercised. Digital works are stored in repositories which enforce a digital works usage rights. Each repository has a "generic ticket agent" which punches tickets. In some instances only the generic ticket agent is necessary. In other instances, punching by a "special ticket agent" residing on another repository may be needed.
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申请公布号 |
US7269576(B2) |
申请公布日期 |
2007.09.11 |
申请号 |
US20040773306 |
申请日期 |
2004.02.09 |
申请人 |
CONTENTGUARD HOLDINGS, INC. |
发明人 |
STEFIK MARK J.;PIROLLI PETER L. T.;MERKLE RALPH C. |
分类号 |
G06F12/00;G06Q99/00;G06F1/00;G06F7/00;G06F15/16;G06F21/00;G06F21/24;G06Q20/00;G06Q30/00;G09C1/00;H04K1/00;H04L9/00;H04L9/32;H04L12/14;H04L29/06;H04L29/12;H04N7/16;H04N7/24 |
主分类号 |
G06F12/00 |
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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