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    • 2. 发明申请
    • Aspects of media content rendering
    • 媒体内容呈现方面
    • US20070006064A1
    • 2007-01-04
    • US11405816
    • 2006-04-18
    • Olivier ColleJames FingerKhurshed MazharMark VanAntwerp
    • Olivier ColleJames FingerKhurshed MazharMark VanAntwerp
    • G06F17/00H04N5/44
    • G06F17/30056G11B20/10527G11B27/105G11B2020/10537G11B2220/2537
    • Media content is arranged into a number of sets of video, audio, or data samples, referred to as clips, which are rendered by a media content manager. A playlist, which is handled by a presentation manager, specifies the time-ordered sequence of clips playable to a user. Certain actions are taken during media content play to minimize glitches perceived by the user, including determining a time offset value that is used to decide how far in advance of a scheduled play time to begin pre-rendering an upcoming clip. The time offset value is determined using one or more static characteristics associated with a media source for the upcoming clip, such as the location of the media source, codec parameters, or encryption complexity, and one or more dynamic characteristics of the presentation system, such as retrieval states, (including play speeds) of media clips, processing loads, or clock frequencies.
    • 媒体内容被布置成由媒体内容管理器呈现的多组视频,音频或数据样本,被称为剪辑。 由演示管理器处理的播放列表指定可播放给用户的剪辑的时间顺序序列。 在媒体内容播放期间采取某些动作以最小化用户感知到的毛刺,包括确定时间偏移值,该时间偏移值用于确定预定播放时间之前的距离以开始预呈现即将到来的剪辑。 使用与用于即将到来的剪辑的媒体源相关联的一个或多个静态特性来确定时间偏移值,例如媒体源的位置,编解码器参数或加密复杂度以及呈现系统的一个或多个动态特性,例如 作为媒体剪辑,处理负载或时钟频率的检索状态(包括播放速度)。
    • 4. 发明申请
    • Active stream format for holding multiple media streams
    • 用于保存多个媒体流的活动流格式
    • US20050058133A1
    • 2005-03-17
    • US10975287
    • 2004-10-28
    • Steven LeviMark VanAntwerpCraig DowellChadd Knowlton
    • Steven LeviMark VanAntwerpCraig DowellChadd Knowlton
    • H04L29/06H04L29/08H04N7/52H04N7/66H04L12/56
    • H04L65/607H04L29/06H04L29/06027H04L69/324H04L69/326H04N7/52
    • An active stream format is defined and adopted for a logical structure that encapsulates multiple data streams. The data streams may be of different media. The data of the data streams is partitioned into packets that are suitable for transmission over a transport medium. The packets may include error correcting information. The packets may also include clock licenses for dictating the advancement of a clock when the data streams are rendered. The format of ASF facilitates flexibility and choice of packet size and in specifying maximum bit rate at which data may be rendered. Error concealment strategies may be employed in the packetization of data to distribute portions of samples to multiple packets. Property information may be replicated and stored in separate packets to enhance its error tolerance. The format facilitates dynamic definition of media types and the packetization of data in such dynamically defined data types within the format.
    • 为封装多个数据流的逻辑结构定义并采用活动流格式。 数据流可以是不同的媒体。 数据流的数据被分割成适合于在传输介质上传输的分组。 分组可以包括纠错信息。 分组还可以包括用于指示在呈现数据流时提前时钟的时钟许可。 ASF的格式有助于数据包大小的灵活性和选择,并指定可以呈现数据的最大比特率。 错误隐藏策略可以用于数据分组化以将样本的部分分发到多个分组。 可以将属性信息复制并存储在单独的数据包中,以增强其容错能力。 该格式有助于媒体类型的动态定义以及在格式内的动态定义的数据类型中数据的分组化。
    • 5. 发明授权
    • Automatic protocol rollover in streaming multimedia data delivery system
    • 流媒体数据传输系统中的自动协议翻转
    • US6029200A
    • 2000-02-22
    • US37199
    • 1998-03-09
    • Mike BeckermanChadd B. KnowltonSteven P. LeviMark VanAntwerp
    • Mike BeckermanChadd B. KnowltonSteven P. LeviMark VanAntwerp
    • H04L29/06H04L29/08G06F13/00
    • H04L65/4084H04L29/06H04L65/80H04L29/06027H04L67/42H04L69/326
    • The invention includes a streaming multimedia rendering system having a network client and a network server that form part of a hyperlink web such as the Internet. In accordance with the invention, a hyperlink to multimedia content is actually an indirect link to a referencc file. The reference file contains a plurality of different resource specifiers and a preferred order for attempting communications using the resource specifiers. Each resource specifier designates a transport protocol. A streaming data client open the resource file in response to activation of a hyperlink to the resource file. In response to the resource specifiers contained in the resource file, the network data client repeatedly attempts to establish a streaming data connection using the different resource specifiers, in the preferred order specified in the reference file, or in the preferred order specified by a file referenced by the reference file, until a streaming data connection is successfully established. Each attempt with a different resource specifier uses the transport protocol designated by that different resource specifier. Different types of protocol specifiers are available. Some of the protocol specifiers override configuration settings made at the network data client relating to which transport protocols are permitted.
    • 本发明包括具有网络客户端和构成诸如因特网的超链接网络的一部分的网络服务器的流媒体多媒体呈现系统。 根据本发明,到多媒体内容的超链接实际上是到引用文件的间接链接。 参考文件包含多个不同的资源说明符和用于使用资源说明符尝试通信的优选顺序。 每个资源说明符指定传输协议。 流数据客户端响应激活资源文件的超链接来打开资源文件。 响应于资源文件中包含的资源说明符,网络数据客户端重复尝试使用不同的资源说明符建立流式数据连接,按照参考文件中指定的优先顺序,或以引用的文件指定的优先顺序 通过参考文件,直到成功建立流数据连接。 使用不同资源说明符的每次尝试都使用由该不同资源说明符指定的传输协议。 不同类型的协议说明符是可用的。 一些协议说明符覆盖了在网络数据客户端上与允许哪些传输协议相关的配置设置。
    • 7. 发明授权
    • Automatic protocol rollover in streaming multimedia data delivery systems
    • 流媒体数据传输系统中的自动协议翻转
    • US06415327B1
    • 2002-07-02
    • US09490260
    • 2000-01-24
    • Mike BeckermanChadd B. KnowltonSteven P. LeviMark VanAntwerp
    • Mike BeckermanChadd B. KnowltonSteven P. LeviMark VanAntwerp
    • G06F1516
    • H04L65/4084H04L29/06H04L29/06027H04L65/80H04L67/42H04L69/326
    • The invention includes a streaming multimedia rendering system having a network client and a network server that form part of a hyperlink web such as the Internet. In accordance with the invention, a hyperlink to multimedia content is actually an indirect link to a reference file. The reference file contains a plurality of different resource specifiers and a preferred order for attempting communications using the resource specifiers. Each resource specifier designates a transport protocol. A streaming data client open the resource file in response to activation of a hyperlink to the resource file. In response to the resource specifiers contained in the resource file, the network data client repeatedly attempts to establish a streaming data connection using the different resource specifiers, in the preferred order specified in the reference file, or in the preferred order specified by a file referenced by the reference file, until a streaming data connection is successfully established. Each attempt with a different resource specifier uses the transport protocol designated by that different resource specifier. Different types of protocol specifiers are available. Some of the protocol specifiers override configuration settings made at the network data client relating to which transport protocols are permitted.
    • 本发明包括具有网络客户端和构成诸如因特网的超链接网络的一部分的网络服务器的流媒体多媒体呈现系统。 根据本发明,到多媒体内容的超链接实际上是到参考文件的间接链接。 参考文件包含多个不同的资源说明符和用于使用资源说明符尝试通信的优选顺序。 每个资源说明符指定传输协议。 流数据客户端响应激活资源文件的超链接来打开资源文件。 响应于资源文件中包含的资源说明符,网络数据客户端重复尝试使用不同的资源说明符建立流式数据连接,按照参考文件中指定的优先顺序,或以引用的文件指定的优先顺序 通过参考文件,直到成功建立流数据连接。 使用不同资源说明符的每次尝试都使用由该不同资源说明符指定的传输协议。 不同类型的协议说明符是可用的。 一些协议说明符覆盖了在网络数据客户端上与允许哪些传输协议相关的配置设置。