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    METHOD AND APPARATUS FOR DETERMINING A TRANSMISSION BIT RATE IN A STATISTICAL MULTIPLEXER
    3.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING A TRANSMISSION BIT RATE IN A STATISTICAL MULTIPLEXER 审中-公开
    用于确定统计多路复用器中的传输比率的方法和设备

    公开(公告)号：WO0225951A2

    公开(公告)日：2002-03-28

    申请号：PCT/US0127171

    申请日：2001-08-31

    Applicant: GEN INSTRUMENT CORP ,  LIU VINCENT ,  WU SIU WAI ,  CASTELOES MICHAEL ,  STONE ROBERT J ,  LAM REBECCA

    Inventor： LIU VINCENT ,  WU SIU-WAI ,  CASTELOES MICHAEL ,  STONE ROBERT J ,  LAM REBECCA

    IPC: H04N7/26 ,  H04N21/234 ,  H04N21/2365 ,  H04N21/434 ,  H04N21/44 ,  H04N7/24

    CPC classification number: H04N21/23655 ,  H04N19/15 ,  H04N21/2401

    Abstract: A statistical multiplexer for coding and multiplexing multiple channels of digital television data, or multiple panels of HDTV digital television data. A bit rate need parameter is determined (102, 104, 106) for each encoder (112, 114, 116) in a stat mux group, and an encoding bit rate is allocated to each channel based on its need parameter. A transmission bit rate is allocated to each channel as a time-lagged version of its need parameter to minimize a rate mismatch between the output and the input of a decoder buffer (184). A packet processor (250, 350) checks for impending decoder buffer overflow or underflow events to set minimum and maximum limits on the transmission bit rate. Moreover, these limits are set based on whether a new transmission bit rate can be implemented before the decoding time stamp (DTS) of the current or next frame.

    Abstract translation: 用于编码和多路复用数字电视数据的多个通道或多个HDTV数字电视数据面板的统计多路复用器。 确定静态多路复用组中的每个编码器（112,114,116）的比特率需求参数（102,104,106），并且基于其需要参数将编码比特率分配给每个信道。 传输比特率作为其需要参数的时滞版本分配给每个信道，以最小化解码器缓冲器（184）的输出和输入之间的速率失配。 分组处理器（250,350）检查即将发生的解码器缓冲器溢出或下溢事件，以设置传输比特率的最小和最大限制。 此外，根据在当前帧或下一帧的解码时间戳（DTS）之前是否可以实现新的传输比特率来设置这些限制。

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