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    Media streaming using an index file
    4.
    发明授权
    Media streaming using an index file 有权
    使用索引文件进行媒体流传输

    公开(公告)号：US07925774B2

    公开(公告)日：2011-04-12

    申请号：US12188079

    申请日：2008-08-07

    申请人： Wenbo Zhang ,  Serge Smirnov ,  Kishore Kotteri ,  Gurpratap Virdi ,  Eldar Musayev ,  Florin Folta

    发明人： Wenbo Zhang ,  Serge Smirnov ,  Kishore Kotteri ,  Gurpratap Virdi ,  Eldar Musayev ,  Florin Folta

    IPC分类号： G06F15/16 ,  G06F12/00

    CPC分类号： H04L65/60 ,  H04N9/8227 ,  H04N21/2358 ,  H04N21/4325 ,  H04N21/44004 ,  H04N21/6373

    摘要： The present disclosure relates to playback of video/audio streaming media data to provide a substantially glitch-free experience. The system adapts the media stream to the user connection in order to choose the most desirable stream to avoid glitches. For example, in the case where there is interference (e.g., a microwave being used near a wireless device), the quality of the media stream is lowered. In one embodiment, an index file is used to make logical decisions about which media stream to choose in order to minimize glitches. The index file can take different forms, but, generally, includes characteristics about the available media streams. Example characteristics include the bit rates of the media streams and quality information about the media streams.

    摘要翻译： 本公开涉及视频/音频流媒体数据的回放以提供基本上无毛刺的体验。 系统将媒体流适配到用户连接，以便选择最理想的流以避免毛刺。 例如，在存在干扰的情况下（例如，在无线装置附近使用微波），媒体流的质量降低。 在一个实施例中，索引文件用于作出关于要选择哪个媒体流的逻辑决定以便最小化毛刺。 索引文件可以采取不同的形式，但通常包括有关可用媒体流的特征。 示例特征包括媒体流的比特率和关于媒体流的质量信息。

    MEDIA STREAMING USING AN INDEX FILE
    6.
    发明申请
    MEDIA STREAMING USING AN INDEX FILE 有权
    媒体使用索引文件流

    公开(公告)号：US20090300204A1

    公开(公告)日：2009-12-03

    申请号：US12188079

    申请日：2008-08-07

    申请人： Wenbo Zhang ,  Serge Smirnov ,  Kishore Kotteri ,  Gurpratap Virdi ,  Eldar Musayev ,  Florin Folta

    发明人： Wenbo Zhang ,  Serge Smirnov ,  Kishore Kotteri ,  Gurpratap Virdi ,  Eldar Musayev ,  Florin Folta

    IPC分类号： G06F15/16

    CPC分类号： H04L65/60 ,  H04N9/8227 ,  H04N21/2358 ,  H04N21/4325 ,  H04N21/44004 ,  H04N21/6373

    摘要： The present disclosure relates to playback of video/audio streaming media data to provide a substantially glitch-free experience. The system adapts the media stream to the user connection in order to choose the most desirable stream to avoid glitches. For example, in the case where there is interference (e.g., a microwave being used near a wireless device), the quality of the media stream is lowered. In one embodiment, an index file is used to make logical decisions about which media stream to choose in order to minimize glitches. The index file can take different forms, but, generally, includes characteristics about the available media streams. Example characteristics include the bit rates of the media streams and quality information about the media streams.

    摘要翻译： 本公开涉及视频/音频流媒体数据的回放以提供基本上无毛刺的体验。 系统将媒体流适配到用户连接，以便选择最理想的流以避免毛刺。 例如，在存在干扰的情况下（例如，在无线装置附近使用微波），媒体流的质量降低。 在一个实施例中，索引文件用于作出关于要选择哪个媒体流的逻辑决定以便最小化毛刺。 索引文件可以采取不同的形式，但通常包括有关可用媒体流的特征。 示例特征包括媒体流的比特率和关于媒体流的质量信息。

    Optimized client side rate control and indexed file layout for streaming media
    7.
    发明授权
    Optimized client side rate control and indexed file layout for streaming media 有权
    针对流媒体优化客户端速率控制和索引文件布局

    公开(公告)号：US08379851B2

    公开(公告)日：2013-02-19

    申请号：US12119364

    申请日：2008-05-12

    申请人： Sanjeev Mehrotra ,  Kishore Kotteri ,  Bharath Siravara ,  Thomas W. Holcomb ,  Hui Gao ,  Serge Smirnov

    发明人： Sanjeev Mehrotra ,  Kishore Kotteri ,  Bharath Siravara ,  Thomas W. Holcomb ,  Hui Gao ,  Serge Smirnov

    IPC分类号： H04N7/167 ,  G06F15/16

    CPC分类号： H04L65/607 ,  H04L65/608 ,  H04N21/00

    摘要： An indexed file layout, comprising index information, is defined for segmented streaming of multimedia content. The index information can comprise program description information and streaming segment index information. In addition, the layout can comprise files containing streaming segments of the program, where the streaming segments are each encoded at one or more bitrates independently of other streaming segments of the program. The layout supports client switching between different bitrates at segment boundaries. Optimized client-side rate control of streaming content can be provided by defining a plurality of states, selecting available paths based on constraint conditions, and selecting a best path through the states (e.g., based on a distortion measure). In one client-side rate control solution states correspond to a specific bitrate of a specific streaming segment, and in another client-side rate control solution states correspond to a measure of client buffer fullness.

    摘要翻译： 包括索引信息的索引文件布局被定义用于多媒体内容的分段流。 索引信息可以包括节目描述信息和流分片索引信息。 此外，布局可以包括包含程序的流片段的文件，其中流片段每个以独立于节目的其他流片段的一个或多个比特率进行编码。 该布局支持在段边界处的不同比特率之间的客户端切换。 可以通过定义多个状态，基于约束条件选择可用路径以及选择通过状态的最佳路径（例如，基于失真度量）来提供流内容的优化客户端速率控制。 在一个客户端速率控制解决方案中，状态对应于特定流分段的特定比特率，并且在另一客户端速率控制解决方案状态对应于客户端缓冲区充满度的度量。

    Bass boost filtering techniques
    8.
    发明授权
    Bass boost filtering techniques 有权
    低音增强滤波技术

    公开(公告)号：US08189812B2

    公开(公告)日：2012-05-29

    申请号：US11770616

    申请日：2007-06-28

    申请人： Serge Smirnov ,  Qunli Li ,  James D. Johnston ,  John Bregar

    发明人： Serge Smirnov ,  Qunli Li ,  James D. Johnston ,  John Bregar

    IPC分类号： H03G5/00

    CPC分类号： H03G5/005

    摘要： Bass frequencies of audio can be boosted using various techniques and tools. The described techniques and tools can be applied separately or in combination. For example, bass frequencies of audio can be boosted using an integer bass boost filter by receiving user-settable parameters, such as “c” and “s” coefficients, and implementing the integer bass boost filter using a coupled form structure implementation and the user-settable parameters. Bass frequencies of audio can also be boosted using an integer bass boost filter that is configured to use any of plural coupled form structure implementations. Bass frequencies of audio can be also be boosted using a linear combination of an input audio signal and output of a high-pass filter.

    摘要翻译： 可以使用各种技术和工具提高音频的低音频率。 所描述的技术和工具可以单独使用或组合使用。 例如，可以通过接收诸如“c”和“s”系数之类的用户可设置参数的整数低音增强滤波器来提升音频的低音频率，并且使用耦合的形式结构实现来实现整数低音增强滤波器，并且用户 可设置参数。 也可以使用被配置为使用多个耦合形式结构实现中的任何一个的整数低音提升滤波器来提高音频的低音频率。 也可以使用输入音频信号和高通滤波器的输出的线性组合来提高音频的低音频率。

    ENCODING STREAMING MEDIA AS A HIGH BIT RATE LAYER, A LOW BIT RATE LAYER, AND ONE OR MORE INTERMEDIATE BIT RATE LAYERS
    9.
    发明申请
    ENCODING STREAMING MEDIA AS A HIGH BIT RATE LAYER, A LOW BIT RATE LAYER, AND ONE OR MORE INTERMEDIATE BIT RATE LAYERS 有权
    编码流媒体作为高比特率层，低比特率层，以及一个或多个中间比特速率层

    公开(公告)号：US20090279605A1

    公开(公告)日：2009-11-12

    申请号：US12116878

    申请日：2008-05-07

    申请人： Thomas W. Holcomb ,  Sanjeev Mehrotra ,  Serge Smirnov ,  Bharath Siravara

    发明人： Thomas W. Holcomb ,  Sanjeev Mehrotra ,  Serge Smirnov ,  Bharath Siravara

    IPC分类号： H04N7/26

    CPC分类号： H04N19/34 ,  H04N19/114 ,  H04N19/115 ,  H04N19/124 ,  H04N19/14 ,  H04N19/147 ,  H04N19/164 ,  H04N19/166 ,  H04N19/179 ,  H04N19/187

    摘要： A method of encoding an input video stream comprising a video component and an audio component is disclosed. The input video stream is split into a plurality of segments, each comprising a plurality of frames. Each of the segments is encoded as a low bit rate layer, a high bit rate layer, and one or more intermediate bit rate layers. The bit rate of the low bit rate layer is selected such that a network streaming the segment will always be able to stream the segment encoded as the low bit rate layer. The bit rate of the high bit rate layer is selected such that the segment is able to be decoded and played back at or above a quality threshold. The bit rates of the intermediate bit rate layers are produced by applying a bit rate factor to another bit rate.

    摘要翻译： 公开了一种编码包括视频分量和音频分量的输入视频流的方法。 输入视频流被分割成多个段，每个段包括多个帧。 每个段被编码为低比特率层，高比特率层和一个或多个中间比特率层。 选择低比特率层的比特率，使得流分段的网络将总是能够将编码为低比特率层的段流传输。 选择高比特率层的比特率使得该片段能够在质量阈值以上或高于质量阈值时被解码和回放。 中间比特率层的比特率通过将比特率因子应用于另一个比特率来产生。