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    • 1. 发明授权
    • Speculative motion prediction cache
    • 投机运动预测缓存
    • US08446955B2
    • 2013-05-21
    • US11966110
    • 2007-12-28
    • Greg SadowskiDaniel Wong
    • Greg SadowskiDaniel Wong
    • H04N7/12
    • H04N19/433H04N19/176H04N19/44H04N19/513
    • A method and apparatus to improve motion prediction in video processing systems is introduced. When a motion prediction cache completes requesting data for a current macroblock and enters an into idle state, data comprising one or more reference frames is speculatively requested, with the hope that the requested data are will be needed in a subsequent macroblock. If the speculative data is needed, then it is consumed. However, if the speculative data is not needed, then the correct data must be requested and a price is paid for an extra memory read bandwidth. In case the speculative data is the correct data for the subsequent macroblock, the effective memory read latency is reduced and the decode performance increases. The video decoder becomes more immune to memory read latency.
    • 介绍了一种改善视频处理系统中运动预测的方法和装置。 当运动预测缓存完成请求当前宏块的数据并进入空闲状态时,推测性地请求包括一个或多个参考帧的数据,希望在随后的宏块中需要所请求的数据。 如果需要投机数据,那么它将被消耗。 然而,如果不需要推测数据,则必须请求正确的数据,并为额外的存储器读取带宽支付价格。 在推测数据是后续宏块的正确数据的情况下,有效存储器读取等待时间减少并且解码性能增加。 视频解码器变得更加免于存储器读取延迟。
    • 3. 发明申请
    • SPECULATIVE MOTION PREDICTION CACHE
    • 推测运动预测缓存
    • US20090168882A1
    • 2009-07-02
    • US11966110
    • 2007-12-28
    • Greg SadowskiDaniel Wong
    • Greg SadowskiDaniel Wong
    • H04N7/26
    • H04N19/433H04N19/176H04N19/44H04N19/513
    • A method and apparatus to improve motion prediction in video processing systems is introduced. When a motion prediction cache completes requesting data for a current macroblock and enters an into idle state, data comprising one or more reference frames is speculatively requested, with the hope that the requested data are will be needed in a subsequent macroblock. If the speculative data is needed, then it is consumed. However, if the speculative data is not needed, then the correct data must be requested and a price is paid for an extra memory read bandwidth. In case the speculative data is the correct data for the subsequent macroblock, the effective memory read latency is reduced and the decode performance increases. The video decoder becomes more immune to memory read latency.
    • 介绍了一种改善视频处理系统中运动预测的方法和装置。 当运动预测缓存完成请求当前宏块的数据并进入空闲状态时,推测性地请求包括一个或多个参考帧的数据,希望在随后的宏块中需要所请求的数据。 如果需要投机数据,那么它将被消耗。 然而,如果不需要推测数据,则必须请求正确的数据,并为额外的存储器读取带宽支付价格。 在推测数据是后续宏块的正确数据的情况下,有效存储器读取等待时间减少并且解码性能增加。 视频解码器变得更加免于存储器读取延迟。