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    • 8. 发明公开
    • DIGITAL VIDEO BROADCASTING NETWORK SYSTEM AND METHOD OF OBTAINING PROGRAM INFORMATION IN DIGITAL VIDEO BROADCASTING
    • 数字视频广播网络系统和方法获取信息的方案,数字视频广播
    • EP3155819A1
    • 2017-04-19
    • EP14894597.5
    • 2014-06-13
    • Thomson Licensing
    • WANG, Yonggang
    • H04N21/435
    • H04N21/4345H04H60/25H04H60/73H04N21/26283H04N21/26291H04N21/4353H04N21/4623H04N21/6125H04N21/8402H04N21/8547
    • A digital video broadcasting network system includes a program information server to deliver program information by using Internet Protocol, and a client device to obtain and save the program information through the Internet Protocol. The program information server delivers the program information including a program information version indicating a version status of the program information and a program information map including a set of information records used to allow the client device to identify a program to be delivered at the version status and to reproduce the program, and updates the program information depending on a version change of the version status. The client device updates currently saved program information when a version status included in the currently saved program information is different from the version status of the delivered program information, by obtaining the program information delivered from the program information server.
    • 一种数字视频广播网络系统包括节目信息服务器通过使用互联网协议提供的节目信息,以及客户端装置,以获得并保存通过因特网协议的节目信息。 节目信息服务器提供节目信息,包括节目信息的版本指示的节目信息的版本状态和节目信息图包括一组用于允许客户端设备识别程序的信息记录在版本状态交付和 再现节目,并更新节目信息根据版本状态的版本变化。 目前保存的节目信息时,包括在当前保存的程序信息的版本状态的客户端设备的更新是从交付的节目信息的版本状态不同,通过获得来自节目信息服务器下发的节目信息。