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    • 3. 发明申请
    • SELECTIVELY RECEIVING MEDIA CONTENT
    • 选择性接收媒体内容
    • US20120079000A1
    • 2012-03-29
    • US12891421
    • 2010-09-27
    • George CalcevKevin L. BaumBenedito J. Fonseca, JR.Jeffrey D. Bonta
    • George CalcevKevin L. BaumBenedito J. Fonseca, JR.Jeffrey D. Bonta
    • G06F15/16
    • H04N21/47202H04L65/604H04N21/44209H04N21/6587H04N21/8456
    • Disclosed are methods for associating size information with each chunk of a media presentation. This size information is sent to an end-user device. There are many ways to characterize the size of a chunk beyond simply giving the number of bytes in the chunk. Some embodiments send an approximation of the size or a relative size. In some embodiments, a server publishes a “reference” value for a media presentation and then, for each chunk, gives the size relative to that reference value. The device decides whether or not to download the chunk. The device might decide that it is unlikely that the next chunk can be downloaded in time. Then, to avoid the possibility of a video freeze, the device could request the next chunk at a lower resolution. In some situations, the device decides to request a completely different chunk or to not request any chunk at all.
    • 公开了将大小信息与媒体呈现的每个块相关联的方法。 该大小信息被发送到最终用户设备。 除了简单地给出块中的字节数之外,还有许多方法来表征块的大小。 一些实施例发送尺寸或相对尺寸的近似值。 在一些实施例中,服务器发布媒体呈现的“参考”值,然后针对每个组给出相对于该参考值的大小。 该设备决定是否下载该块。 该设备可能会决定下一个小块不太可能及时下载。 然后,为了避免视频冻结的可能性,设备可以以较低的分辨率请求下一个块。 在某些情况下,设备决定请求完全不同的块,或者根本不请求任何块。