Invention Application
US20050060571A1 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
- Patent Title: System and method for managing transfer of rights using shared state variables
- Patent Title (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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Application No.: US10956121Application Date: 2004-10-04
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Publication No.: US20050060571A1Publication Date: 2005-03-17
- Inventor: Xin Wang , Thanh Ta , Guillermo Lao , Eddie Chen
- Applicant: Xin Wang , Thanh Ta , Guillermo Lao , Eddie Chen
- Main IPC: H04L29/06
- IPC: H04L29/06 ; H04L9/00

Abstract:
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.
Public/Granted literature
- US07774280B2 System and method for managing transfer of rights using shared state variables Public/Granted day:2010-08-10
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