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    • 43. 发明申请
    • Method and apparatus for supporting multiple trust zones in a digital rights management system
    • 在数字版权管理系统中支持多个信任区域的方法和装置
    • US20020198845A1
    • 2002-12-26
    • US10162210
    • 2002-06-05
    • CONTENTGUARD HOLDINGS, INC.
    • Guillermo LaoXin WangThanh TaJoseph Fung
    • G06F017/60
    • G06F21/10G06Q20/401
    • Digital rights management method and system for items having usage rights. A first activation device defines a first trust zone. A first license device associated with the first trust zone generates an open license having usage rights associated with a first item. A second activation device defines a second trust zone and is adapted to issue a software package that enforces usage rights. A user device associated with the second trust zone is adapted to receive the software package from the second activation device, to receive the open license associated with the first item, and to use the first item in accordance with the open license. In addition, a method is provided for enforcing a license granting usage rights associated with a protected item, and for classifying a license, the license being an open license or a closed license.
    • 具有使用权的物品的数字版权管理方法和系统。 第一激活装置定义第一信任区。 与第一信任区域相关联的第一许可设备生成具有与第一项目相关联的使用权限的开放许可证。 第二激活装置定义第二信任区并适于发出强制使用权的软件包。 与第二信任区相关联的用户设备适于从第二激活设备接收软件包,以接收与第一项相关联的开放许可,并且根据开放许可使用第一项。 另外,提供了一种用于执行许可授予与受保护项目相关联的使用权限的方法,并且对许可证进行分类,许可证是开放许可证或封闭许可证。