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    • 6. 发明授权
    • Method and systems for multicast using multiple transport streams
    • 使用多个传输流的组播方法和系统
    • US07992172B1
    • 2011-08-02
    • US09679210
    • 2000-10-04
    • Donald F. GordonBrian FeinbergEugene GershteinSadik BayrakeriJohn P. ComitoEdward A. Ludvig
    • Donald F. GordonBrian FeinbergEugene GershteinSadik BayrakeriJohn P. ComitoEdward A. Ludvig
    • H04N7/16
    • H04N21/26283H04N5/45H04N7/0806H04N7/163H04N7/165H04N19/577H04N21/236H04N21/2385H04N21/2402H04N21/2408H04N21/482H04N21/6547
    • A system for delivering interactive program guide (IPG) includes a number of encoding units, at least one transport stream generator, and a session manager. The encoding units encode a number of IPG pages and generate a number of (e.g., guide, video, audio, and data) streams, with each stream being assigned a respective packet identifier (PID). Each transport stream generator receives and multiplexes selected ones of the streams from one or more encoding units into one or more transport streams. The session manager directs each transport stream generator to generate one or more transport streams based on usage. The system may further include a bandwidth manager that monitors usage and reports the usage to the session manager. The encoding units can be operated to encode only once each IPG page to be transmitted. Each transport stream generator can be operated to provide differentiated IPG for the neighborhood being served by the transport stream generator. The number of transport streams generated by each transport stream generator can be dynamically adjusted based on demands from the neighborhood being served by the transport stream generator. Each transport stream generator can be directed to generate an additional transport stream if usage exceeds the capacity of the currently transmitted transport streams.
    • 用于提供交互式节目指南(IPG)的系统包括多个编码单元,至少一个传输流发生器和会话管理器。 编码单元对多个IPG页面进行编码,并生成多个(例如,引导,视频,音频和数据)流,每个流被分配相应的分组标识符(PID)。 每个传输流生成器从一个或多个编码单元接收并复用选定的一个流到一个或多个传输流中。 会话管理器指示每个传输流生成器基于使用来生成一个或多个传输流。 该系统还可以包括带宽管理器,其监视使用情况并向会话管理器报告使用情况。 编码单元可以被操作以仅对要发送的每个IPG页面进行编码。 每个传输流发生器可以被操作以为由传输流发生器服务的邻域提供差异IPG。 可以基于由传输流发生器服务的邻域的需求来动态地调整由每个传输流发生器生成的传输流的数量。 如果使用超过当前传输的传输流的容量,则每个传输流生成器可以被引导以生成附加传输流。
    • 8. 发明申请
    • System and method for delivery of short-time duration video segments
    • 提供短时间段视频段的系统和方法
    • US20060184979A1
    • 2006-08-17
    • US11400691
    • 2006-04-07
    • Sadik BayrakeriDonald GordonEdward LudvigJohn ComitoJeremy EdmondsEugene Gershtein
    • Sadik BayrakeriDonald GordonEdward LudvigJohn ComitoJeremy EdmondsEugene Gershtein
    • H04N7/173G06F15/16G06F3/00G06F13/00H04N5/445
    • H04N5/44543H04N5/45H04N21/23439H04N21/26283H04N21/2668H04N21/4722H04N21/482H04N21/8456H04N21/8549
    • A system and method for efficient delivery of video segments. One embodiment relates to the delivery of short-time duration video segments. The video segments may be delivered as part of a media-rich interactive program guide (IPG) or for some other application. The system and method provides a viewer with access to a video segment starting at its beginning (or any other selectable point within the video segment). Such access may be provided using a server-centric interactive technique. The server-centric technique may involve use of a demand-cast system and method. Demand-cast messaging may occur between a session manager, transport stream generator, and terminal. For example, a video object on a screen may be activated by a viewer using a remote control for a terminal. Activation of the object may cause transmission of a request from the terminal to a session manager for a video segment corresponding to the object. In response to the request, the session manager may initiate a process to accomplish delivery of the video segment from a transport stream generator to the terminal.
    • 一种用于高效传送视频片段的系统和方法。 一个实施例涉及短时间段视频片段的传送。 视频段可以作为媒体丰富的交互式节目指南(IPG)或其他一些应用的一部分来传送。 该系统和方法为观众提供从其开始(或视频片段中的任何其他可选点)开始的视频片段的访问。 可以使用以服务器为中心的交互技术来提供这种访问。 以服务器为中心的技术可能涉及使用需求转换系统和方法。 会话管理器,传输流发生器和终端之间可能发生请求转移消息。 例如,屏幕上的视频对象可以由观看者使用终端的遥控器激活。 对象的激活可能导致从终端向与对象相对应的视频片段的会话管理器发送请求。 响应于该请求,会话管理器可以启动完成从传输流发生器到终端的视频段的传递的过程。