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1. 发明申请

US20080205389A1 Selection of transrate and transcode processes by host computer 审中-公开
标题翻译：通过主机选择转换和转码过程
公开(公告)号：US20080205389A1
公开(公告)日：2008-08-28
申请号：US11710762
申请日：2007-02-26
申请人： Nicholas J. Fang , Todd Z. Bowra , Ashley C. Speicher
发明人： Nicholas J. Fang , Todd Z. Bowra , Ashley C. Speicher
IPC分类号： H04L12/28
CPC分类号： H04L65/80 , H04L65/1026 , H04L2012/2849
摘要： A host computer manages and processes multiple requests for transmission of media content to other devices within a network. Hardware or software-driven media processing units format media content for streaming to the network devices. A policy engine manages processing constraints of the media processing units to determine the best combination of transrate/transcode processes to provide the highest quality transmissions without overloading the processing capacity of the host computer. The policy engine also considers available network bandwidth when determining transformation instructions for the media processing units. The policy engine identifies target formats, bit rates, and image resolutions for output for each media stream or for storage for later transmission and instructs the media processing units to transrate and/or transcode the media content appropriately to meet the demand.
摘要翻译：主机计算机管理和处理多个请求以将媒体内容传输到网络内的其他设备。硬件或软件驱动的媒体处理单元格式化媒体内容以流式传输到网络设备。策略引擎管理媒体处理单元的处理约束以确定转换/转码过程的最佳组合以提供最高质量的传输，而不会使主计算机的处理能力过载。当确定媒体处理单元的转换指令时，策略引擎还考虑可用的网络带宽。策略引擎识别用于每个媒体流的输出的目标格式，比特率和图像分辨率或用于稍后传输的存储，并且指示媒体处理单元适当地转换和/或转码媒体内容以满足需求。

2. 发明授权

US08069260B2 Dynamic buffer settings for media playback 有权
标题翻译：用于媒体播放的动态缓冲区设置
公开(公告)号：US08069260B2
公开(公告)日：2011-11-29
申请号：US11652708
申请日：2007-01-12
申请人： Ashley C. Speicher , Nicholas J. Fang , Todd Z. Bowra
发明人： Ashley C. Speicher , Nicholas J. Fang , Todd Z. Bowra
IPC分类号： G06F15/16
CPC分类号： H04L12/2838 , H04L43/087 , H04L65/605 , H04L65/80 , H04L2012/2849 , H04N21/23406 , H04N21/44004
摘要： Improved responsiveness and reduced latency of media playback on a media player is achieved by dynamic adjustment of storage parameters for the jitter buffer in the media player. Decreasing the size of the jitter buffer to a smaller constant value may provide acceptable, starvation-free playback in many cases. Playback of more demanding files requiring more buffered data for decode are addressed by dynamic adjustment of the jitter buffer parameters. An algorithmic or heuristic process is used to dynamically set the size of the jitter buffer before and during media playback. The jitter buffer size and/or preroll duration may be adjusted based upon the quality of playback experience. If playback starves, the jitter buffer size, starvation threshold, and/or preroll duration is increased before rebuffering and resuming playback. If the jitter buffer remains above a defined threshold for a given period of time, the jitter buffer size and/or preroll duration may be decreased, improving the responsiveness of startup and seek and trick mode operations.
摘要翻译：通过动态调整媒体播放器中的抖动缓冲区的存储参数来实现媒体播放器上的响应速度和媒体播放延迟的降低。将抖动缓冲区的大小减小到较小的常数值可能会在许多情况下提供可接受的，无饥饿的播放。通过动态调整抖动缓冲器参数来解决需要更多缓冲数据进行解码的更严格的文件的播放。使用算法或启发式过程在媒体播放之前和期间动态设置抖动缓冲区的大小。可以基于播放体验的质量来调整抖动缓冲器大小和/或预拉伸持续时间。如果回放挨饿，则在缓冲和恢复播放之前，抖动缓冲区大小，饥饿阈值和/或预滚持续时间会增加。如果抖动缓冲器在给定时间段内保持高于定义的阈值，则可以减小抖动缓冲器大小和/或预拉伸持续时间，从而提高启动和寻找和特技模式操作的响应性。

3. 发明申请

US20080172441A1 Dynamic buffer settings for media playback 有权
标题翻译：用于媒体播放的动态缓冲区设置
公开(公告)号：US20080172441A1
公开(公告)日：2008-07-17
申请号：US11652708
申请日：2007-01-12
申请人： Ashley C. Speicher , Nicholas J. Fang , Todd Z. Bowra
发明人： Ashley C. Speicher , Nicholas J. Fang , Todd Z. Bowra
IPC分类号： G06F15/16 , G06F17/00
CPC分类号： H04L12/2838 , H04L43/087 , H04L65/605 , H04L65/80 , H04L2012/2849 , H04N21/23406 , H04N21/44004
摘要： Improved responsiveness and reduced latency of media playback on a media player is achieved by dynamic adjustment of storage parameters for the jitter buffer in the media player. Decreasing the size of the jitter buffer to a smaller constant value may provide acceptable, starvation-free playback in many cases. Playback of more demanding files requiring more buffered data for decode are addressed by dynamic adjustment of the jitter buffer parameters. An algorithmic or heuristic process is used to dynamically set the size of the jitter buffer before and during media playback. The jitter buffer size and/or preroll duration may be adjusted based upon the quality of playback experience. If playback starves, the jitter buffer size, starvation threshold, and/or preroll duration is increased before rebuffering and resuming playback. If the jitter buffer remains above a defined threshold for a given period of time, the jitter buffer size and/or preroll duration may be decreased, improving the responsiveness of startup and seek and trick mode operations.
摘要翻译：通过动态调整媒体播放器中的抖动缓冲区的存储参数来实现媒体播放器上的响应速度和媒体播放延迟的降低。将抖动缓冲区的大小减小到较小的常数值可能会在许多情况下提供可接受的，无饥饿的播放。通过动态调整抖动缓冲器参数来解决需要更多缓冲数据进行解码的更严格的文件的播放。使用算法或启发式过程在媒体播放之前和期间动态设置抖动缓冲区的大小。可以基于播放体验的质量来调整抖动缓冲器大小和/或预拉伸持续时间。如果回放挨饿，则在缓冲和恢复播放之前，抖动缓冲区大小，饥饿阈值和/或预滚持续时间会增加。如果抖动缓冲器在给定时间段内保持高于定义的阈值，则可以减小抖动缓冲器大小和/或预拉伸持续时间，从而提高启动和寻找和特技模式操作的响应性。

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