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    • 1. 发明申请
    • REAL-TIME NETWORK VIDEO PROCESSING
    • 实时网络视频处理
    • US20100104006A1
    • 2010-04-29
    • US12260032
    • 2008-10-28
    • John Richard TaylorRandy Yen-pang ChouJoel Frederic Adam
    • John Richard TaylorRandy Yen-pang ChouJoel Frederic Adam
    • H04N7/30
    • H04N19/436H04N19/44H04N19/61
    • An embodiment is a method and apparatus to process video frames. An entropy decoder performs entropy decoding on a bitstream of a video frame extracted from a network frame. The entropy decoder generates discrete cosine transform (DCT) coefficients representing a picture block in the video frame. The entropy decoder is configured for serial operations. A graphics processing unit (GPU) performs image decoding using the DCT coefficients. The GPU is configured for parallel operations.One disclosed feature of the embodiments is a technique to decode a video frame. A GPU performs image encoding of a video frame computing quantized DCT coefficients representing a picture block in the video frame. The GPU is configured for parallel operations. An entropy encoder performs entropy encoding on the quantized DCT coefficients. The entropy encoder is configured for serial operations.
    • 实施例是用于处理视频帧的方法和装置。 熵解码器对从网络帧提取的视频帧的比特流进行熵解码。 熵解码器产生表示视频帧中的图像块的离散余弦变换(DCT)系数。 熵解码器被配置用于串行操作。 图形处理单元(GPU)使用DCT系数执行图像解码。 GPU被配置为并行操作。 实施例的一个公开的特征是解码视频帧的技术。 GPU执行视频帧的图像编码,该视频帧计算表示视频帧中的图像块的量化的DCT系数。 GPU被配置为并行操作。 熵编码器对量化的DCT系数进行熵编码。 熵编码器配置为串行操作。
    • 4. 发明授权
    • Pre-fetching data for a distributed filesystem
    • 预取分布式文件系统的数据
    • US08788628B1
    • 2014-07-22
    • US13295844
    • 2011-11-14
    • John Richard TaylorRandy Yen-pang ChouAndrew P. Davis
    • John Richard TaylorRandy Yen-pang ChouAndrew P. Davis
    • G06F15/16
    • G06F17/30132G06F17/30194
    • The disclosed embodiments provide a system that facilitates pre-fetching data for a distributed filesystem. During operation, a cloud controller (e.g., a computing device that caches data from the distributed filesystem) that maintains a set of metadata for the distributed filesystem receives a request to access a data block for a file. The cloud controller traverses the metadata to identify a metadata entry that is associated with the block, and then uses this metadata entry to download a cloud file containing the data block from a cloud storage system. While performing these operations, the cloud controller additionally determines that an additional cloud file in the cloud storage system includes data that is likely to be accessed in conjunction with the data block, and proceeds to pre-fetch this additional cloud file from the cloud storage system.
    • 所公开的实施例提供了便于为分布式文件系统预取数据的系统。 在操作期间,为分布式文件系统维护一组元数据的云控制器(例如,缓存来自分布式文件系统的数据的计算设备)接收访问文件的数据块的请求。 云控制器遍历元数据以识别与块相关联的元数据条目,然后使用此元数据条目从云存储系统下载包含数据块的云文件。 在执行这些操作时,云控制器还确定云存储系统中的附加云文件包括可能与数据块一起被访问的数据,并且继续从云存储系统预取该附加云文件 。