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    • 91. 发明授权
    • Failure recovery and error correction techniques for data loading in information warehouses
    • 信息仓库中数据加载的故障恢复和纠错技术
    • US09218377B2
    • 2015-12-22
    • US12134065
    • 2008-06-05
    • Ying ChenBin HeAna LelescuJames J. RhodesRui Wang
    • Ying ChenBin HeAna LelescuJames J. RhodesRui Wang
    • G06F17/30G06F11/14G06F7/00
    • G06F17/30309G06F11/1469G06F11/1471
    • A method of data loading for large information warehouses includes performing checkpointing concurrently with data loading into an information warehouse, the checkpointing ensuring consistency among multiple tables; and recovering from a failure in the data loading using the checkpointing. A method is also disclosed for performing versioning concurrently with data loading into an information warehouse. The versioning method enables processing undo and redo operations of the data loading between a later version and a previous version. Data load failure recovery is performed without starting a data load from the beginning but rather from a latest checkpoint for data loading at an information warehouse level using a checkpoint process characterized by a state transition diagram having a multiplicity of states; and tracking state transitions among the states using a system state table.
    • 大型信息仓库的数据加载方法包括:将数据加载到信息仓库中同时进行检查点检查,确保多个表格之间的一致性; 并使用检查点从数据加载失败中恢复。 还公开了一种与数据加载到信息仓库中同时进行版本控制的方法。 版本控制方法可以处理在更高版本和先前版本之间的数据加载的撤消和重做操作。 执行数据加载失败恢复,而不从一开始就开始数据加载,而是从最新检查点开始,使用特征在于具有多个状态的状态转换图的检查点进程在信息仓库级别进行数据加载。 并使用系统状态表来跟踪状态之间的状态转换。
    • 98. 发明授权
    • Signaling random access points for streaming video data
    • 用于流视频数据的信令随机接入点
    • US09049497B2
    • 2015-06-02
    • US12908537
    • 2010-10-20
    • Ying ChenMarta Karczewicz
    • Ying ChenMarta Karczewicz
    • H04N7/12H04N11/02H04N11/04H04B1/66G06F15/16H04N7/173H04N21/845G11B27/00G11B27/10G11B27/30H04N19/70
    • H04N21/8455G11B27/007G11B27/105G11B27/3027H04N19/70
    • This disclosure describes techniques relevant to HTTP streaming of media data. According to these techniques, a server device may signal an open decoding refresh (ODR) random access point (RAP) for a movie segmentation of a movie representation. At least one frame of the media segmentation following the ODR RAP frame in decoding order may not be correctly decoded, and wherein each frame of the media segmentation following the ODR RAP frame in display order can be correctly decoded without relying on content of frames prior to the ODR RAP in display order. According to the techniques of this disclosure, a client device may communicate a request to a server device for the streaming of media data based on signaling of the ODR RAP. Also according to the techniques of this disclosure, a client device may commence decoding and/or playback of the movie representation based on signaling of the ODR RAP.
    • 本公开描述了与媒体数据的HTTP流相关的技术。 根据这些技术,服务器设备可以发送用于电影表示的电影分割的开放解码刷新(ODR)随机接入点(RAP)。 以解码顺序在ODR RAP帧之后的媒体分段的至少一帧可能不能被正确解码,并且其中以显示顺序在ODR RAP帧之后的媒体分段的每个帧可以被正确地解码,而不依赖于帧之前的帧的内容 ODR RAP显示顺序。 根据本公开的技术,客户端设备可以基于ODR RAP的信令来向服务器设备传送媒体流媒体数据的请求。 还根据本公开的技术,客户端设备可以基于ODR RAP的信令开始解码和/或播放电影表示。