首页>
外国专利>
Method and equipment for a television program fibers in which a conditional access complementary
Method and equipment for a television program fibers in which a conditional access complementary
展开▼
机译:有条件访问互补的电视节目光纤的方法和设备
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method and an equipment for allocating to a television program, which is already conditionally accessed, a complementary conditional access. The television program is first received by means provided with access entitlements and the control words are restored. Complementary access control messages and complementary entitlement management messages corresponding to a complementary access control system are built up. The initial unmodified television program is rebroadcast, together with the complementary messages related to the complementary access control system.
展开▼