公开(公告)号：US07788393B2

公开(公告)日：2010-08-31

申请号：US11360080

申请日：2006-02-23

申请人： John Pickens ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  W. Paul Sherer

发明人： John Pickens ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  W. Paul Sherer

IPC分类号： G06F15/16

CPC分类号： H04L65/4076 ,  H04L12/185 ,  H04L12/1863 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/80 ,  H04N21/23406 ,  H04N21/238 ,  H04N21/23805 ,  H04N21/26616 ,  H04N21/2668 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/44016 ,  H04N21/44222 ,  H04N21/6405 ,  H04N21/6408

摘要： Switching a client from unicasting back to multicasting involves accumulating enough digital video content at the client to bridge the time it takes to transition from receiving the digital video content via unicasting to receiving the digital video content via multicasting. Digital video content is accumulated at the client by temporarily increasing the stream rate of the unicast stream above the playout rate. While the digital video content is being streamed at the increased rate, the amount of digital video content stored in the client's stream buffer grows. The stream rate is held at the increased rate until the client accumulates enough frames in its buffer to be able to bridge the time it takes to transition from receiving the digital video content via unicasting to receiving the digital video content via multicasting.

摘要翻译： 将客户端从单播切换到多播包括在客户端上累积足够的数字视频内容以弥合从通过单播接收数字视频内容转换到通过多播接收数字视频内容所需的时间。 数字视频内容通过临时增加播放速率以上的单播流的流速度而在客户端处累积。 当数字视频内容以增加的速率流式传输时，存储在客户端流缓冲器中的数字视频内容的数量增加。 流率以增加的速率保持，直到客户端在其缓冲器中累积足够的帧，以便能够跨越通过单播从接收数字视频内容转换到通过多播接收数字视频内容所需的时间。

公开(公告)号：US20090193454A1

公开(公告)日：2009-07-30

申请号：US12022099

申请日：2008-01-29

申请人： Glenn Connery ,  Andrew Palfreyman ,  William Sherer ,  Hoi-Tauw Chou

发明人： Glenn Connery ,  Andrew Palfreyman ,  William Sherer ,  Hoi-Tauw Chou

IPC分类号： H04N7/025 ,  H04N7/10

CPC分类号： G11B27/3027 ,  G11B27/036 ,  H04N21/23424 ,  H04N21/234318 ,  H04N21/23608 ,  H04N21/4307 ,  H04N21/4344 ,  H04N21/44008 ,  H04N21/44016 ,  H04N21/812 ,  H04N21/8455 ,  H04N21/8547

摘要： In one embodiment, a network device analyzes an encoded stream to identify a timing value included in a packet before a splice point. Next, the device determines a difference between identified timing value and a timing value included in a packet of the encoded segment to be spliced. In conjunction with splicing, the network device formats timing values of packets according to the determined difference, which improves play out of the spliced stream.

摘要翻译： 在一个实施例中，网络设备分析编码流以识别在拼接点之前的分组中包括的定时值。 接下来，设备确定所识别的定时值与包括在要拼接的编码片段的分组中的定时值之间的差异。 结合拼接，网络设备根据确定的差异来格式化分组的定时值，这改善了拼接流的播放。

公开(公告)号：US20060200576A1

公开(公告)日：2006-09-07

申请号：US11361303

申请日：2006-02-23

申请人： John Pickens ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  W. Sherer

发明人： John Pickens ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  W. Sherer

IPC分类号： G06F15/16

CPC分类号： B32B27/08 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2307/402 ,  B32B2307/584 ,  B32B2307/7145 ,  B32B2451/00 ,  B44C1/10 ,  H04L12/1886 ,  H04L29/06027 ,  H04L65/4084 ,  H04L65/4092 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/6405 ,  H04N21/6408 ,  H04N21/64322

摘要： Switching a client from unicasting back to multicasting involves simultaneously providing the digital video content to the client via unicasting and multicasting until the client has buffered duplicate frames (i.e., frames that contain the same digital video content). Once the client has buffered duplicate frames, the client can transition from playing out of a buffer that holds frames received via unicasting to playing out of a buffer that holds frames received via multicasting without skipping a frame. Once the transition back to multicasting is complete, unicasting is terminated and any frames remaining in the unicast buffer are flushed.

摘要翻译： 将客户端从单播切换回多播涉及通过单播和多播向客户端提供数字视频内容，直到客户端缓冲了重复的帧（即，包含相同的数字视频内容的帧）。 一旦客户端缓存了重复的帧，客户端就可以从保持通过单播接收到的帧的缓冲区中跳出到通过多播保存帧而不跳过帧的缓冲器的播放。 一旦转换回组播完成，单播就终止，并且单播缓冲区中剩余的任何帧被刷新。

公开(公告)号：US08140699B2

公开(公告)日：2012-03-20

申请号：US11361303

申请日：2006-02-23

申请人： John Pickens ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  W. Paul Sherer

发明人： John Pickens ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  W. Paul Sherer

IPC分类号： G06F15/16

CPC分类号： B32B27/08 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2307/402 ,  B32B2307/584 ,  B32B2307/7145 ,  B32B2451/00 ,  B44C1/10 ,  H04L12/1886 ,  H04L29/06027 ,  H04L65/4084 ,  H04L65/4092 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/6405 ,  H04N21/6408 ,  H04N21/64322

摘要： Switching a client from unicasting back to multicasting involves simultaneously providing the digital video content to the client via unicasting and multicasting until the client has buffered duplicate frames (i.e., frames that contain the same digital video content). Once the client has buffered duplicate frames, the client can transition from playing out of a buffer that holds frames received via unicasting to playing out of a buffer that holds frames received via multicasting without skipping a frame. Once the transition back to multicasting is complete, unicasting is terminated and any frames remaining in the unicast buffer are flushed.

摘要翻译： 将客户端从单播切换回多播涉及通过单播和多播向客户端提供数字视频内容，直到客户端缓冲了重复的帧（即，包含相同的数字视频内容的帧）。 一旦客户端缓存了重复的帧，客户端就可以从保持通过单播接收到的帧的缓冲区中跳出到通过多播保存帧而不跳过帧的缓冲器的播放。 一旦转换回组播完成，单播就终止，并且单播缓冲区中剩余的任何帧被刷新。

公开(公告)号：US08613013B2

公开(公告)日：2013-12-17

申请号：US12138257

申请日：2008-06-12

申请人： Glenn Connery ,  Andrew Palfreyman

发明人： Glenn Connery ,  Andrew Palfreyman

IPC分类号： H04N7/10 ,  H04N7/025 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N21/44016 ,  H04N21/23406 ,  H04N21/23424 ,  H04N21/234354 ,  H04N21/23439 ,  H04N21/812

摘要： In one embodiment an apparatus for splicing an ad into a data stream includes an ad segmenter, an ad variant generator coupled to the ad segmenter, and an ad variant selector coupled to the ad variant generator. The ad segmenter designates end portions, including beginning and ending portions, of the ad and designates an intermediate portion between the end portions. The ad variant generator generates a plurality of variants of at least one end portion. Each variant corresponds to a unique bit-rate. The ad variant selector selects at least one variant for splicing into the data stream based on a buffer level of a data stream buffer.

摘要翻译： 在一个实施例中，用于将广告拼接成数据流的装置包括广告分段器，耦合到广告分割器的广告变体发生器以及耦合到广告变体发生器的广告变体选择器。 广告分割器指定包括广告的开始和结束部分的端部，并指定端部之间的中间部分。 广告变体发生器产生至少一个端部的多个变体。 每个变体对应于唯一的比特率。 广告变体选择器基于数据流缓冲器的缓冲器级别选择至少一种用于拼接到数据流中的变体。

公开(公告)号：US20070107026A1

公开(公告)日：2007-05-10

申请号：US11360078

申请日：2006-02-23

申请人： W. Sherer ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  John Pickens

发明人： W. Sherer ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  John Pickens

IPC分类号： H04N7/173

CPC分类号： H04L65/4076 ,  H04L12/185 ,  H04L12/1863 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/80 ,  H04N21/23406 ,  H04N21/238 ,  H04N21/23805 ,  H04N21/26616 ,  H04N21/2668 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/44016 ,  H04N21/44222 ,  H04N21/6405 ,  H04N21/6408

摘要： In a digital video network that is capable of distributing digital video content to a client via multicasting and unicasting, servicing a channel change request from a client involves switching from providing the digital video content to the client via multicasting to providing the digital video content to the client via unicasting and continuing to provide digital video content to the client via unicasting until a pre-established condition is met. Continuing to provide digital video content to the client via unicasting until a pre-established condition is met allows the network to opportunistically switch the client from unicasting back to multicasting.

摘要翻译： 在能够通过多播和单播将数字视频内容分发到客户端的数字视频网络中，从客户端服务信道改变请求涉及通过组播将数字视频内容提供给客户端，从而将数字视频内容提供给 客户端，并且继续通过单播向客户端提供数字视频内容，直到满足预先建立的条件。 继续通过单播向客户端提供数字视频内容，直到满足预先建立的条件，允许网络有机地将客户端从单播返回到组播。

公开(公告)号：US07904581B2

公开(公告)日：2011-03-08

申请号：US11360078

申请日：2006-02-23

申请人： W. Paul Sherer ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  John Pickens

发明人： W. Paul Sherer ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  John Pickens

IPC分类号： H04N7/173

CPC分类号： H04L65/4076 ,  H04L12/185 ,  H04L12/1863 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/80 ,  H04N21/23406 ,  H04N21/238 ,  H04N21/23805 ,  H04N21/26616 ,  H04N21/2668 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/44016 ,  H04N21/44222 ,  H04N21/6405 ,  H04N21/6408

摘要： In a digital video network that is capable of distributing digital video content to a client via multicasting and unicasting, servicing a channel change request from a client involves switching from providing the digital video content to the client via multicasting to providing the digital video content to the client via unicasting and continuing to provide digital video content to the client via unicasting until a pre-established condition is met. Continuing to provide digital video content to the client via unicasting until a pre-established condition is met allows the network to opportunistically switch the client from unicasting back to multicasting.

摘要翻译： 在能够通过多播和单播将数字视频内容分发到客户端的数字视频网络中，从客户端服务信道改变请求涉及通过组播将数字视频内容提供给客户端，从而将数字视频内容提供给 客户端，并且继续通过单播向客户端提供数字视频内容，直到满足预先建立的条件。 继续通过单播向客户端提供数字视频内容，直到满足预先建立的条件，允许网络有机地将客户端从单播返回到组播。

公开(公告)号：US20060200574A1

公开(公告)日：2006-09-07

申请号：US11360080

申请日：2006-02-23

申请人： John Pickens ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  W. Sherer

发明人： John Pickens ,  Kirk Blattman ,  Glenn Connery ,  Andrew Palfreyman ,  W. Sherer

IPC分类号： G06F15/16

CPC分类号： H04L65/4076 ,  H04L12/185 ,  H04L12/1863 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/80 ,  H04N21/23406 ,  H04N21/238 ,  H04N21/23805 ,  H04N21/26616 ,  H04N21/2668 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/44016 ,  H04N21/44222 ,  H04N21/6405 ,  H04N21/6408

摘要： Switching a client from unicasting back to multicasting involves accumulating enough digital video content at the client to bridge the time it takes to transition from receiving the digital video content via unicasting to receiving the digital video content via multicasting. Digital video content is accumulated at the client by temporarily increasing the stream rate of the unicast stream above the playout rate. While the digital video content is being streamed at the increased rate, the amount of digital video content stored in the client's stream buffer grows. The stream rate is held at the increased rate until the client accumulates enough frames in its buffer to be able to bridge the time it takes to transition from receiving the digital video content via unicasting to receiving the digital video content via multicasting.

摘要翻译： 将客户端从单播切换到多播包括在客户端上累积足够的数字视频内容以弥合从通过单播接收数字视频内容转换到通过多播接收数字视频内容所需的时间。 数字视频内容通过临时增加播放速率以上的单播流的流速度而在客户端处累积。 当数字视频内容以增加的速率流式传输时，存储在客户端流缓冲器中的数字视频内容的数量增加。 流率以增加的速率保持，直到客户端在其缓冲器中累积足够的帧，以便能够跨越通过单播从接收数字视频内容转换到通过多播接收数字视频内容所需的时间。

公开(公告)号：US08565318B2

公开(公告)日：2013-10-22

申请号：US12022099

申请日：2008-01-29

申请人： Glenn Connery ,  Andrew Palfreyman ,  William Sherer ,  Hoi-Tauw Chou

发明人： Glenn Connery ,  Andrew Palfreyman ,  William Sherer ,  Hoi-Tauw Chou

IPC分类号： H04N7/12

CPC分类号： G11B27/3027 ,  G11B27/036 ,  H04N21/23424 ,  H04N21/234318 ,  H04N21/23608 ,  H04N21/4307 ,  H04N21/4344 ,  H04N21/44008 ,  H04N21/44016 ,  H04N21/812 ,  H04N21/8455 ,  H04N21/8547

摘要： In one embodiment, a network device analyzes an encoded stream to identify a timing value included in a packet before a splice point. Next, the device determines a difference between identified timing value and a timing value included in a packet of the encoded segment to be spliced. In conjunction with splicing, the network device formats timing values of packets according to the determined difference, which improves play out of the spliced stream.

摘要翻译： 在一个实施例中，网络设备分析编码流以识别在拼接点之前的分组中包括的定时值。 接下来，设备确定所识别的定时值与包括在要拼接的编码片段的分组中的定时值之间的差异。 结合拼接，网络设备根据确定的差异来格式化分组的定时值，这改善了拼接流的播放。

公开(公告)号：US20090313652A1

公开(公告)日：2009-12-17

申请号：US12138257

申请日：2008-06-12

申请人： Glenn Connery ,  Andrew Palfreyman

发明人： Glenn Connery ,  Andrew Palfreyman

IPC分类号： H04N7/10

CPC分类号： H04N21/44016 ,  H04N21/23406 ,  H04N21/23424 ,  H04N21/234354 ,  H04N21/23439 ,  H04N21/812

摘要： In one embodiment an apparatus for splicing an ad into a data stream includes an ad segmenter, an ad variant generator coupled to the ad segmenter, and an ad variant selector coupled to the ad variant generator. The ad segmenter designates end portions, including beginning and ending portions, of the ad and designates an intermediate portion between the end portions. The ad variant generator generates a plurality of variants of at least one end portion. Each variant corresponds to a unique bit-rate. The ad variant selector selects at least one variant for splicing into the data stream based on a buffer level of a data stream buffer.

摘要翻译： 在一个实施例中，用于将广告拼接成数据流的装置包括广告分段器，耦合到广告分割器的广告变体发生器以及耦合到广告变体发生器的广告变体选择器。 广告分割器指定包括广告的开始和结束部分的端部，并指定端部之间的中间部分。 广告变体发生器产生至少一个端部的多个变体。 每个变体对应于唯一的比特率。 广告变体选择器基于数据流缓冲器的缓冲器级别选择至少一种用于拼接到数据流中的变体。