公开(公告)号：US20060036759A1

公开(公告)日：2006-02-16

申请号：US10917243

申请日：2004-08-12

申请人： Guobin Shen ,  Shipeng Li ,  Hua Cai ,  Regis Crinon ,  Ze-wen Zhang ,  Guangping Gao ,  Hong-Hui Sun ,  Baogang Yao

发明人： Guobin Shen ,  Shipeng Li ,  Hua Cai ,  Regis Crinon ,  Ze-wen Zhang ,  Guangping Gao ,  Hong-Hui Sun ,  Baogang Yao

IPC分类号： G06F15/16

CPC分类号： H04L65/4076 ,  H04L29/06027 ,  H04L65/607

摘要： The techniques and mechanisms described herein are directed at transmitting elementary streams in a broadcast environment. The mechanisms provide a buffer controller and packet scheduler that allow a media format to be transmitted through the broadcasting environment in a manner resulting in a low channel switch delay. A buffer-fullness indicator allows the operation with various types of decoders. A lower bound and an upper bound are calculated for each frame within the elementary stream. The lower bound corresponds to an earliest time for sending the frame without causing an overflow condition within a decoder buffer. The upper bound corresponds to a latest time for sending the frame without causing an underflow condition within the decoder buffer. A send time is then scheduled based on the lower bound and the upper bound that determines when a packet associated with the frame is transmitted over a channel in a broadcast environment.

摘要翻译： 这里描述的技术和机制针对在广播环境中传输基本流。 这些机制提供了一种缓冲器控制器和分组调度器，其允许以导致低通道切换延迟的方式通过广播环境传输媒体格式。 缓冲器充满度指示器允许使用各种类型的解码器进行操作。 为基本流中的每个帧计算下限和上限。 下限对应于发送帧的最早时间，而不会导致解码器缓冲器内的溢出状况。 上限对应于在解码器缓冲器内不发生下溢条件的发送帧的最新时间。 然后基于下限和上限来调度发送时间，该下限和上限确定与广播环境中的信道相关联的分组何时发送。

公开(公告)号：US07433946B2

公开(公告)日：2008-10-07

申请号：US10917243

申请日：2004-08-12

申请人： Guobin Shen ,  Shipeng Li ,  Hua Cai ,  Regis J. Crinon ,  Ze-wen Zhang ,  Guangping Gao ,  Hong-Hui Sun ,  Baogang Yao

发明人： Guobin Shen ,  Shipeng Li ,  Hua Cai ,  Regis J. Crinon ,  Ze-wen Zhang ,  Guangping Gao ,  Hong-Hui Sun ,  Baogang Yao

IPC分类号： G06F15/173 ,  G06F15/16 ,  G06F5/00

CPC分类号： H04L65/4076 ,  H04L29/06027 ,  H04L65/607

摘要： The techniques and mechanisms described herein are directed at transmitting elementary streams in a broadcast environment. The mechanisms provide a buffer controller and packet scheduler that allow a media format to be transmitted through the broadcasting environment in a manner resulting in a low channel switch delay. A buffer-fullness indicator allows the operation with various types of decoders. A lower bound and an upper bound are calculated for each frame within the elementary stream. The lower bound corresponds to an earliest time for sending the frame without causing an overflow condition within a decoder buffer. The upper bound corresponds to a latest time for sending the frame without causing an underflow condition within the decoder buffer. A send time is then scheduled based on the lower bound and the upper bound that determines when a packet associated with the frame is transmitted over a channel in a broadcast environment.

摘要翻译： 这里描述的技术和机制针对在广播环境中传输基本流。 这些机制提供了一种缓冲器控制器和分组调度器，其允许以导致低通道切换延迟的方式通过广播环境传输媒体格式。 缓冲器充满度指示器允许使用各种类型的解码器进行操作。 为基本流中的每个帧计算下限和上限。 下限对应于发送帧的最早时间，而不会导致解码器缓冲器内的溢出状况。 上限对应于在解码器缓冲器内不发生下溢条件的发送帧的最新时间。 然后基于下限和上限来调度发送时间，该下限和上限确定与广播环境中的信道相关联的分组何时发送。