公开(公告)号：WO0231618A3

公开(公告)日：2002-09-26

申请号：PCT/SG0000173

申请日：2000-10-13

Applicant: KENT RIDGE DIGITAL LABS ,  XU CHANGSHENG ,  WU JIANKANG

Inventor： XU CHANGSHENG ,  WU JIANKANG

IPC: G06F1/00 ,  G06F21/10 ,  H04L9/00

CPC classification number: G06F21/10

Abstract: The present invention presents a method and system for controlling usage and protecting against copying of digital multimedia content (such as audio, video, image, and document) and their associated players or readers. The system is arranged so that digital content and their players or readers that are installed in one computer or device cannot be used if they are copied to another computer or device. The system may also be arranged so that duplicated digital content is not usable in the same computer or device. Usage data associated with each item of digital content may restrict the running time during which the content can be used and may be updated automatically after each usage of the content. The content may not be accessible if its permitted usage has expired.

Abstract translation: 本发明提出了用于控制数字多媒体内容（诸如音频，视频，图像和文档）及其相关播放器或阅读器的复制的使用和防止复制的方法和系统。 该系统的安排使得安装在一台计算机或设备上的数字内容及其播放器或阅读器在复制到另一台计算机或设备时不能使用。 该系统还可以被安排为使得复制的数字内容在同一台计算机或设备中不可用。 与每个数字内容项相关联的使用数据可以限制内容可以被使用的运行时间，并且可以在内容的每次使用之后被自动更新。 如果允许的使用已过期，内容可能无法访问。