Demand-cast system and bandwidth management for delivery of interactive programming
    2.
    发明授权
    Demand-cast system and bandwidth management for delivery of interactive programming 有权
    用于传递交互式编程的需求调度系统和带宽管理

    公开(公告)号:US07607152B1

    公开(公告)日:2009-10-20

    申请号:US09538562

    申请日:2000-03-29

    IPC分类号: H04N7/16 G06F3/00

    摘要: A system for more efficient utilization of the finite bandwidth available for distribution of interactive program guide (IPG) video sequences. The system utilizes a session manager and a transport stream generator to enable a set top terminal to access an entire array of guide pages from the IPG within the constraints imposed by the limited bandwidth available in the distribution network.One embodiment of the present invention comprises a system that includes a session manager (SM) and a transport stream generator (TSG) within a distribution control center. The SM monitors and controls usage of demand-cast stream bandwidth within the distribution network. The TSG receives information from the SM on each demand-cast stream. The information includes which set top terminals, if any, are currently acquiring the stream. The TSG uses the information to control the demand-cast streams multiplexed into the transport stream for distribution to the set top terminals.

    摘要翻译: 用于更有效地利用可用于分发交互式节目指南(IPG)视频序列的有限带宽的系统。 该系统利用会话管理器和传输流发生器来使机顶终端能够在由分配网络中可用的有限带宽施加的约束内从IPG访问整个引导页面阵列。 本发明的一个实施例包括在分配控制中心内包括会话管理器(SM)和传输流发生器(TSG)的系统。 SM监控和控制分布式网络内的需求流流量带宽的使用。 TSG在每个需求转播流上从SM接收信息。 信息包括哪些顶层终端(如果有)正在获取流。 TSG使用这些信息来控制多路复用到传输流中的需求控制流以分配给机顶终端。

    Efficient encoding algorithms for delivery of server-centric interactive program guide
    5.
    发明授权
    Efficient encoding algorithms for delivery of server-centric interactive program guide 有权
    高效的编码算法,用于交付以服务器为中心的交互式节目指南

    公开(公告)号:US06704359B1

    公开(公告)日:2004-03-09

    申请号:US09602547

    申请日:2000-06-21

    IPC分类号: H04B166

    摘要: A data structure for representing program data that includes a number of streams. Each stream comprises a group of pictures (GOP) having a first picture and remaining pictures. The data structure includes a first set of one or more elements for representing data for the first pictures in the GOPs, and a second set of one or more elements for representing data for the remaining pictures in the GOPs. At least one element in the first set represents data for the first picture of at least one respective GOP, with each such first picture having been encoded as a reference I picture. Each remaining element (if any) in the first set represents data for the first picture of a respective remaining GOP, with each such remaining first picture having been encoded as either a difference picture or a P picture. Each element in the second set represents data for a particular remaining picture in one of the GOPs, with each such remaining picture having been encoded as either a P or B picture. Each stream is represented by one or more elements in the first set and one or more elements in the second set.

    摘要翻译: 一种用于表示包括多个流的程序数据的数据结构。 每个流包括具有第一图像和剩余图像的一组图像(GOP)。 数据结构包括用于表示GOP中的第一图像的数据的一个或多个元素的第一组,以及用于表示GOP中剩余图像的数据的一个或多个元素的第二组。 第一组中的至少一个元素表示至少一个相应GOP的第一图像的数据,其中每个这样的第一图像已被编码为参考I图像。 第一组中的每个剩余元素(如果有的话)表示相应剩余GOP的第一图像的数据,其中每个这样的剩余第一图像已被编码为差分图像或P图像。 第二组中的每个元素表示GOP中的一个中的特定剩余图像的数据,其中每个这样的剩余图像已经被编码为P图像或B图像。 每个流由第一组中的一个或多个元素和第二组中的一个或多个元素表示。

    Method and System for Providing a Program Guide and Multiple Video Streams Using Slice-Based Encoding
    10.
    发明申请
    Method and System for Providing a Program Guide and Multiple Video Streams Using Slice-Based Encoding 有权
    使用基于片段的编码提供节目指南和多视频流的方法和系统

    公开(公告)号:US20110314500A1

    公开(公告)日:2011-12-22

    申请号:US13221945

    申请日:2011-08-31

    IPC分类号: H04N5/445

    摘要: Methods for slice-based encoding of program guides and user interfaces. The program guides include multiple video streams for picture-in-picture and other applications. A method for encoding the program guide includes encoding a first set of slices for each of a plurality of graphics pages; and encoding a second set of slices for each of a plurality of video streams.The user interfaces are multi-functional and may be used for electronic commerce and other applications. A method of generating the user interface includes encoding a set of slices for each of a plurality of objects, each object being characterized by an identity, at least one attribute, and at least one operation. In one embodiment of this method, the plurality of objects include an electronic commerce object, where the electronic commerce object is attributed with a first hyper text markup language (HTML) page.A head-end centric system and apparatus for encoding and delivery of realtime and non-realtime content, including: a non-realtime content source for providing non-realtime content; a non-realtime encoder for encoding the non-realtime content into encoded non-realtime content; a realtime content source for providing realtime video and audio content; a realtime encoder for encoding the realtime video and audio content into encoded realtime video and audio; a remultiplexer for repacketizing the encoded non-realtime content and the encoded realtime video and audio into transport packets; and a re-timestamp unit coupled to the remultiplexer for providing timestamps to be applied to the transport packets in order to synchronize the realtime and non-realtime content therein.

    摘要翻译: 程序指南和用户界面的基于片段编码的方法。 节目指南包括用于画中画和其他应用的多个视频流。 用于对节目指南进行编码的方法包括编码多个图形页面中的每一个的第一组片段; 以及为多个视频流中的每一个编码第二组片段。 用户界面是多功能的,可用于电子商务和其他应用。 生成用户界面的方法包括对多个对象中的每个对象的一组片段进行编码,每个对象的特征在于身份,至少一个属性和至少一个操作。 在该方法的一个实施例中,多个对象包括电子商务对象,其中电子商务对象被归因于第一超文本标记语言(HTML)页面。 一种用于编码和传送实时和非实时内容的头端中心系统和装置,包括:用于提供非实时内容的非实时内容源; 非实时编码器,用于将非实时内容编码为编码的非实时内容; 用于提供实时视频和音频内容的实时内容源; 用于将实时视频和音频内容编码成编码的实时视频和音频的实时编码器; 用于将编码的非实时内容和编码的实时视频和音频重新分组成传输分组的再多路复用器; 以及耦合到所述再多路复用器的重新时间戳单元,用于提供要应用于所述传输分组的时间戳,以便同步其中的实时和非实时内容。