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    Media file format to support switching between multiple timeline-altered media streams
    5.
    发明授权
    Media file format to support switching between multiple timeline-altered media streams 有权
    媒体文件格式支持在多个时间轴更改的媒体流之间切换

    公开(公告)号：US07472198B2

    公开(公告)日：2008-12-30

    申请号：US11945006

    申请日：2007-11-26

    申请人： Anoop Gupta ,  Nosakhare D. Omoigui ,  Li-Wei He

    发明人： Anoop Gupta ,  Nosakhare D. Omoigui ,  Li-Wei He

    IPC分类号： G06F15/16 ,  H04N7/08

    CPC分类号： H04L65/604 ,  H04N21/2335 ,  H04N21/23424 ,  H04N21/23439 ,  H04N21/44016 ,  H04N21/8456 ,  H04N21/85406 ,  H04N21/858 ,  Y10S707/99931

    摘要： Media content is streamed from a server computer to a client computer. A media file format is used to store data for multiple timeline-altered streams that provides support for switching between the different timeline-altered streams during their presentation. In one aspect, a user can switch between different timeline-altered streams. Upon receiving a user request to switch to a particular timeline-altered stream (the target stream), the client computer accesses a time code stream data object corresponding to the current data unit being presented. The time code stream data object identifies a primary stream presentation time corresponding to the data unit. The client then uses the primary stream presentation time to index into a table of mappings to byte offsets. The table provides a mapping of the primary stream presentation time to a corresponding byte offset of the target stream.

    摘要翻译： 媒体内容从服务器计算机流式传输到客户端计算机。 媒体文件格式用于存储多个时间轴变化流的数据，这些数据提供支持在不同的时间轴改变的流之间进行切换。 在一个方面，用户可以在不同的时间轴变化的流之间切换。 在接收到切换到特定时间线改变流（目标流）的用户请求时，客户端计算机访问与正在呈现的当前数据单元相对应的时间码流数据对象。 时间码流数据对象标识对应于数据单元的主流呈现时间。 然后，客户端使用主流呈现时间将其映射到字节偏移的映射表中。 该表提供主流呈现时间与目标流的相应字节偏移的映射。

    Multi-level skimming of multimedia content using playlists
    6.
    发明授权
    Multi-level skimming of multimedia content using playlists 有权
    使用播放列表对多媒体内容进行多层次的剔除

    公开(公告)号：US07243140B2

    公开(公告)日：2007-07-10

    申请号：US11276424

    申请日：2006-02-28

    申请人： Anoop Gupta ,  Li-Wei He ,  Nosakhare D. Omoigui

    发明人： Anoop Gupta ,  Li-Wei He ,  Nosakhare D. Omoigui

    IPC分类号： G06F15/16

    CPC分类号： G06F17/30053 ,  G06F17/30017 ,  G11B27/105 ,  G11B27/34 ,  H04N7/17318 ,  H04N21/23439 ,  H04N21/26258 ,  H04N21/4621 ,  H04N21/4825 ,  H04N21/6377 ,  H04N21/658 ,  H04N21/6587 ,  H04N21/8455 ,  H04N21/8456 ,  H04N21/8549

    摘要： A skimmed or preview version of multimedia content is provided to a client computer by a server computer using playlists. The skimmed version of multimedia content can be presented to a user of a client computer in less time than presenting the entire multimedia content would require. The server computer maintains skimming information that identifies particular segments of the multimedia content corresponding to the skimmed version. The server computer uses the skimming information to generate a playlist, which in turn is used by the server computer to access the appropriate segments of the multimedia content and provide the segments to the client computer.

    摘要翻译： 由服务器计算机使用播放列表向客户端计算机提供多媒体内容的撇去或预览版本。 可以在比呈现整个多媒体内容所需的时间更短的时间内将多媒体内容的撇掉版本呈现给客户端计算机的用户。 服务器计算机维护识别与撇去版本对应的多媒体内容的特定段的撇号信息。 服务器计算机使用撇号信息来生成播放列表，该播放列表又由服务器计算机使用以访问多媒体内容的适当段，并将该片段提供给客户端计算机。

    Multi-level skimming of multimedia content using playlists
    7.
    发明授权
    Multi-level skimming of multimedia content using playlists 失效
    使用播放列表对多媒体内容进行多层次的剔除

    公开(公告)号：US07076535B2

    公开(公告)日：2006-07-11

    申请号：US10946478

    申请日：2004-09-21

    申请人： Anoop Gupta ,  Li-Wei He ,  Nosakhare D. Omoigui

    发明人： Anoop Gupta ,  Li-Wei He ,  Nosakhare D. Omoigui

    IPC分类号： G06F15/16

    CPC分类号： G06F17/30053 ,  G06F17/30017 ,  G11B27/105 ,  G11B27/34 ,  H04N7/17318 ,  H04N21/23439 ,  H04N21/26258 ,  H04N21/4621 ,  H04N21/4825 ,  H04N21/6377 ,  H04N21/658 ,  H04N21/6587 ,  H04N21/8455 ,  H04N21/8456 ,  H04N21/8549

    摘要： A skimmed or preview version of multimedia content is provided to a client computer by a server computer using playlists. The skimmed version of multimedia content can be presented to a user of a client computer in less time than presenting the entire multimedia content would require. The server computer maintains skimming information that identifies particular segments of the multimedia content corresponding to the skimmed version. The server computer uses the skimming information to generate a playlist, which in turn is used by the server computer to access the appropriate segments of the multimedia content and provide the segments to the client computer.

    摘要翻译： 由服务器计算机使用播放列表向客户端计算机提供多媒体内容的撇去或预览版本。 可以在比呈现整个多媒体内容所需的时间更短的时间内将多媒体内容的撇掉版本呈现给客户端计算机的用户。 服务器计算机维护识别与撇去版本对应的多媒体内容的特定段的撇号信息。 服务器计算机使用撇号信息来生成播放列表，该播放列表又由服务器计算机使用以访问多媒体内容的适当段，并将该片段提供给客户端计算机。

    Timeline correlation between multiple timeline-altered media streams
    9.
    发明授权
    Timeline correlation between multiple timeline-altered media streams 有权
    多个时间轴变化的媒体流之间的时间线相关性

    公开(公告)号：US06415326B1

    公开(公告)日：2002-07-02

    申请号：US09153749

    申请日：1998-09-15

    申请人： Anoop Gupta ,  Nosakhare D. Omoigui ,  Li-Wei He

    发明人： Anoop Gupta ,  Nosakhare D. Omoigui ,  Li-Wei He

    IPC分类号： G06F1516

    CPC分类号： H04N21/458 ,  H04N7/17336 ,  H04N21/23424 ,  H04N21/23439 ,  H04N21/44016 ,  H04N21/47202 ,  H04N21/8547

    摘要： A network client such as a streaming multimedia player is provided with the capability of changing playback speeds of a multimedia data stream. To change the playback speed, the client requests a different media stream. The client then initiates the new media stream at a point that corresponds in content to the point in the original data stream at which the speed change was requested. To determine the appropriate presentation time in the new media stream, the client refers to a first set of mappings, that maps presentation times in the original media stream to time-correlated presentation times in a primary or reference media stream. The client then refers to a second set of mappings, associated with the primary reference stream, to determine a time-correlated presentation time in the new media stream. The client then initiates playback of the new media stream at the determined presentation time.

    摘要翻译： 提供诸如流媒体播放器的网络客户端具有改变多媒体数据流的播放速度的能力。 要更改播放速度，客户端请求不同的媒体流。 然后，客户端在内容对应于要求速度变化的原始数据流中的点发起新的媒体流。 为了确定新媒体流中的适当呈现时间，客户端引用第一组映射，其将原始媒体流中的呈现时间映射到主媒体流或参考媒体流中的时间相关呈现时间。 然后，客户端引用与主参考流相关联的第二组映射，以确定新媒体流中的时间相关的呈现时间。 然后，客户端以确定的呈现时间开始播放新的媒体流。

    Media File Format to Support Switching Between Multiple Timeline-Altered Media Streams
    10.
    发明申请
    Media File Format to Support Switching Between Multiple Timeline-Altered Media Streams 有权
    媒体文件格式以支持在多个时间轴改变的媒体流之间切换

    公开(公告)号：US20080071920A1

    公开(公告)日：2008-03-20

    申请号：US11945006

    申请日：2007-11-26

    申请人： Anoop Gupta ,  Nosakhare Omoigui ,  Li-Wei He

    发明人： Anoop Gupta ,  Nosakhare Omoigui ,  Li-Wei He

    IPC分类号： G06F15/16

    CPC分类号： H04L65/604 ,  H04N21/2335 ,  H04N21/23424 ,  H04N21/23439 ,  H04N21/44016 ,  H04N21/8456 ,  H04N21/85406 ,  H04N21/858 ,  Y10S707/99931

    摘要： Media content is streamed from a server computer to a client computer. A media file format is used to store data for multiple timeline-altered streams that provides support for switching between the different timeline-altered streams during their presentation. In one aspect, a user can switch between different timeline-altered streams. Upon receiving a user request to switch to a particular timeline-altered stream (the target stream), the client computer accesses a time code stream data object corresponding to the current data unit being presented. The time code stream data object identifies a primary stream presentation time corresponding to the data unit. The client then uses the primary stream presentation time to index into a table of mappings to byte offsets. The table provides a mapping of the primary stream presentation time to a corresponding byte offset of the target stream.

    摘要翻译： 媒体内容从服务器计算机流式传输到客户端计算机。 媒体文件格式用于存储多个时间轴变化流的数据，这些数据提供支持在不同的时间轴改变的流之间进行切换。 在一个方面，用户可以在不同的时间轴变化的流之间切换。 在接收到切换到特定时间线改变流（目标流）的用户请求时，客户端计算机访问与正在呈现的当前数据单元相对应的时间码流数据对象。 时间码流数据对象标识对应于数据单元的主流呈现时间。 然后，客户端使用主流呈现时间将其映射到字节偏移的映射表中。 该表提供主流呈现时间与目标流的相应字节偏移的映射。