digital right management service system 方案由版权管理服务系统
The key technology of a IPTV system includes audio and video encode, QoS of audio and video transfers over IP network and digital right management system.
经分析，要构建一个网络数字电视系统，其关键技术主要集中在音视频信号数字化编码、音视频信号在IP网络有质量的传输、数字版权管理系统等方面。
Digital libraries, to avoid infringing, may adopt the collective management system for the right of authorship and administrative technologies of digital copyright.
为避免侵权，数字图书馆可以采用著作权集体管理制度和数字版权管理技术。
The system has advantage on the protection of the digital product right and the flexibility of the user management.
在对数字产品版权的保护上和对用户管理的灵活性方面都有较大的优势。
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