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    • 14. 发明授权
    • System and method for distributing video information over network
    • 通过网络分发视频信息的系统和方法
    • US06986158B1
    • 2006-01-10
    • US09442885
    • 1999-11-18
    • Yuichi TeruiTohru AndohMitsuyo Hasegawa
    • Yuichi TeruiTohru AndohMitsuyo Hasegawa
    • H04N7/173H04N7/12H04N11/02H04N11/04
    • H04N21/6377H04N21/2402H04N21/25808H04N21/2662H04N21/4425H04N21/658H04N21/6582
    • A system and method to adaptively control a process of distributing video information over a network. Each client data terminal subscribing to video services has a performance level reporting unit which sends a performance level message Da indicating what resources and computing power the terminal has. Each terminal also has an error status monitor which sends an error status message De. A video coder produces coded data Dc by coding source video signals, based on the received performance level messages Da and error status messages De. The traffic of this coded data Dc is dynamically varied by a dynamic traffic controller, and a distribution unit transmits the resultant video stream Di over the network, using IP multicasting techniques. A video decoder in each client terminal adaptively decodes the received video stream Di.
    • 一种用于自适应地控制通过网络分发视频信息的过程的系统和方法。 订阅视频服务的每个客户端数据终端具有一个性能级别报告单元,该单元发送指示终端具有什么资源和计算能力的性能级消息Da。 每个终端还具有发送错误状态消息De的错误状态监视器。 视频编码器根据接收到的性能等级消息Da和错误状态消息De,通过对源视频信号进行编码来产生编码数据Dc。 该编码数据Dc的流量由动态流量控制器动态变化,并且分发单元使用IP多播技术通过网络发送所得到的视频流Di。 每个客户终端中的视频解码器自适应地解码所接收的视频流Di。