公开(公告)号：US20100325417A1

公开(公告)日：2010-12-23

申请号：US12871130

申请日：2010-08-30

申请人： Eric John Swenson ,  Ryuji Ishiguro ,  Motohiko Nagana ,  Pierre Chavanne

发明人： Eric John Swenson ,  Ryuji Ishiguro ,  Motohiko Nagana ,  Pierre Chavanne

IPC分类号： H04L9/00

CPC分类号： H04L9/3263 ,  H04L2209/603

摘要： Methods and systems for controlling the distribution of digital content are provided. A license holder acquires protected content and an original digital license to the protected content from a content provider system. The license holder in turn delegates all or part of the grants in that original license to other qualified devices or clients. The content remains in its original, protected or encrypted form while it is delivered from the license holder to the client along with a digital sublicense that the client receives from the original license holder, whereupon the content can then be rendered. The original digital license defines or governs the conditions under which such delegation occurs, and includes terms under which such delegation is permitted to continue in order to enforce the intent of the content provider.

摘要翻译： 提供了控制数字内容分发的方法和系统。 许可证持有人从内容提供者系统获得受保护内容和原始数字许可证给受保护的内容。 许可证持有者依次将该原始许可证中的全部或部分赠款委托给其他合格的设备或客户。 内容保持原始，受保护或加密的形式，同时从许可证持有者交付给客户端以及客户端从原始许可证持有者收到的数字再许可，从而可以呈现内容。 原始数字许可证定义或管理此类授权发生的条件，并包括允许此类授权继续执行内容提供商意图的条款。