发明授权
US08078542B2 System and method for managing transfer of rights using shared state variables
有权
使用共享状态变量管理权限转移的系统和方法
- 专利标题： System and method for managing transfer of rights using shared state variables
- 专利标题（中）： 使用共享状态变量管理权限转移的系统和方法
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申请号： US12824531申请日： 2010-06-28
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公开(公告)号： US08078542B2公开(公告)日： 2011-12-13
- 发明人: Mai Nguyen , Xin Wang , Thanh Ta , Guillermo Lao , Eddie J. Chen
- 申请人： Mai Nguyen , Xin Wang , Thanh Ta , Guillermo Lao , Eddie J. Chen
- 申请人地址： US DE Wilmington
- 专利权人： ContentGuard Holdings, Inc.
- 当前专利权人： ContentGuard Holdings, Inc.
- 当前专利权人地址： US DE Wilmington
- 代理机构： Reed Smith LLP
- 代理商 Marc S. Kaufman; Stephen M. Hertzler
- 主分类号： G06F7/04
- IPC分类号： G06F7/04 ; G06F7/16 ; H04N7/30
摘要：
A method, system and device for transferring rights adapted to be associated with items from a rights supplier to a rights consumer, including obtaining a set of rights associated with an item, the set of rights including meta-rights specifying derivable rights that can be derived from the meta-; determining whether the rights consumer is entitled to the derivable rights specified by the meta-rights; and deriving at least one right from the derivable rights, if the rights consumer is entitled to the derivable rights specified by the meta-rights, wherein the derived right includes at least one state variable based on the set of rights and used for determining a state of the derived right.
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