Invention Grant
US07853531B2 Method and apparatus for supporting multiple trust zones in a digital rights management system
有权
在数字版权管理系统中支持多个信任区域的方法和装置
- Patent Title: Method and apparatus for supporting multiple trust zones in a digital rights management system
- Patent Title (中): 在数字版权管理系统中支持多个信任区域的方法和装置
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Application No.: US10162210Application Date: 2002-06-05
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Publication No.: US07853531B2Publication Date: 2010-12-14
- Inventor: Guillermo Lao , Xin Wang , Thanh Ta , Joseph Zhung Yee Fung
- Applicant: Guillermo Lao , Xin Wang , Thanh Ta , Joseph Zhung Yee Fung
- Applicant Address: US DE Wilmington
- Assignee: ContentGuard Holdings, Inc.
- Current Assignee: ContentGuard Holdings, Inc.
- Current Assignee Address: US DE Wilmington
- Agency: Reed Smith LLP
- Agent Marc S. Kaufman; Stephen M. Hertzler
- Main IPC: G06F21/00
- IPC: G06F21/00

Abstract:
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.
Public/Granted literature
- US20020198845A1 Method and apparatus for supporting multiple trust zones in a digital rights management system Public/Granted day:2002-12-26
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