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1. 发明授权

US08140699B2 Switching a client from unicasting to multicasting by simultaneously providing unicast and multicast streams to the client 有权
标题翻译：通过向客户端同时提供单播和多播流，将客户端从单播切换到多播
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。

2. 发明授权

US07788393B2 Switching a client from unicasting to multicasting by increasing the unicast stream rate to the client 有权
标题翻译：通过将单播流速率增加到客户端，将客户端从单播切换到多播
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。

3. 发明授权

US07904581B2 Fast channel change with conditional return to multicasting 有权
标题翻译：快速通道更改与条件返回组播
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。

4. 发明申请

US20060200576A1 Switching a client from unicasting to multicasting by simultaneously providing unicast and multicast streams to the client 有权
标题翻译：通过向客户端同时提供单播和多播流，将客户端从单播切换到多播
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。

5. 发明申请

US20070107026A1 Fast channel change with conditional return to multicasting 有权
标题翻译：快速通道更改与条件返回组播
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。

6. 发明申请

US20060200574A1 Switching a client from unicasting to multicasting by increasing the unicast stream rate to the client 有权
标题翻译：通过将单播流速率增加到客户端，将客户端从单播切换到多播
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。

7. 发明申请

US20060280431A1 Supporting trick modes in a streaming digital video environment using a root trick mode stream 审中-公开
标题翻译：在流式数字视频环境中使用根特技模式流支持特技模式
公开(公告)号：US20060280431A1
公开(公告)日：2006-12-14
申请号：US11445659
申请日：2006-06-02
申请人： Kirk Blattman , Glenn Connery , Andrew Palfreyman
发明人： Kirk Blattman , Glenn Connery , Andrew Palfreyman
IPC分类号： H04N5/91
CPC分类号： H04N5/783
摘要： A technique for supporting trick modes in a streaming digital video environment involves receiving a source stream of digital video content that is encoded for a normal playout rate and generating a root trick mode stream from the source stream, wherein the root trick mode stream is generated for a playout rate that is faster than the normal playout rate. The root trick mode stream is then used to generate subsequent trick mode streams that have faster playout rates than the root trick mode stream. Using a root trick mode stream to generate subsequent trick mode streams requires only one trick mode stream to be generated at ingest and therefore reduces ingest processing requirements and eliminates the need to store a different trick mode stream for every possible trick mode playout rate.
摘要翻译：一种用于支持流数字视频环境中的特技模式的技术涉及接收针对正常播放速率编码的数字视频内容的源流并且从源流生成根特技模式流，其中生成根特技模式流播放速度比普通播放速度快。然后，根特技模式流用于产生具有比根特技模式流更快的播出速率的后续特技模式流。使用根特技模式流来产生后续的特技模式流仅需要在摄取时生成一个特技模式流，因此减少了摄取处理要求，并且消除了为每个可能的特技模式播放速率存储不同的特技模式流的需要。

8. 发明申请

US20090193454A1 RESTAMPING TRANSPORT STREAMS TO AVOID VERTICAL ROLLS 有权
标题翻译：调节运输流避免垂直滚动
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。

9. 发明授权

US08613013B2 Ad splicing using re-quantization variants 有权
标题翻译：使用重新量化变体的Ad拼接
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。

10. 发明授权

US08565318B2 Restamping transport streams to avoid vertical rolls 有权
标题翻译：停止运输流以避免垂直卷
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。

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