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    Methods and apparatus for constructing a program association table when reducing multiplexed data streams
    1.
    发明授权
    Methods and apparatus for constructing a program association table when reducing multiplexed data streams 有权
    减少多路复用数据流时构建程序关联表的方法和装置

    公开(公告)号：US06934303B2

    公开(公告)日：2005-08-23

    申请号：US09800806

    申请日：2001-03-07

    申请人： Lawrence D. Vince ,  Jeffrey Paul Viola ,  James R. Harris ,  Arthur P. Jost ,  Richard DiColli ,  Erik Elstermann ,  Jeffrey D. Kuczynski-Brown

    发明人： Lawrence D. Vince ,  Jeffrey Paul Viola ,  James R. Harris ,  Arthur P. Jost ,  Richard DiColli ,  Erik Elstermann ,  Jeffrey D. Kuczynski-Brown

    IPC分类号： H04N21/236 ,  H04N21/2362 ,  H04J1/00

    CPC分类号： H04N21/23608 ,  H04N21/2362

    摘要： The present invention provides methods and apparatus for creating a Program Association Table (PAT) for a reduced portion of a multiplexed data stream, when the multiplexed data stream has been reduced, for example, to carry fewer services over a cable television plant. More particularly, the present invention provides methods and apparatus for creating a PAT for a desired combination of multiplexed data stream subgroups contained within an incoming data stream, when the incoming multiplexed data stream is reduced. The invention enables a new PAT to be output which correctly corresponds to the services in a reduced data stream (e.g., for cable-side transmissions). The present invention is particularly useful when reducing high data rate satellite television data streams for cable-side transmission.

    摘要翻译： 本发明提供了当多路复用数据流已经被减少，例如在有线电视设备上携带较少服务时，为复数据流的减少部分创建节目关联表（PAT）的方法和装置。 更具体地，本发明提供了当输入的多路复用数据流被减少时，为输入数据流中包含的多路复用数据流子组的期望组合创建PAT的方法和装置。 本发明使得能够输出正确对应于减少数据流（例如，用于电缆侧传输）中的服务的新PAT。 当减少用于电缆侧传输的高数据速率卫星电视数据流时，本发明特别有用。