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    • 5. 发明授权
    • Digital timing extraction and recovery in a digital video decoder
    • 数字视频解码器中的数字定时提取和恢复
    • US08238443B2
    • 2012-08-07
    • US12352593
    • 2009-01-12
    • Sheng De JangQi JiangHsui Min Wong
    • Sheng De JangQi JiangHsui Min Wong
    • H04N7/12
    • H04N9/646H04N9/66H04N9/72H04N9/78
    • In one example, a digital video resampler and decoder is disclosed. An input buffer is coupled to a source of a video signal oversampled by at least two times. A horizontal synchronization detector is coupled to the input buffer, and detects horizontal synchronization boundaries. A counter is coupled to the horizontal synchronization detector to count a number of samples between horizontal synchronization boundaries. A comparator is coupled to the counter and compares the counted number of samples to a reference count. A sample corrector is coupled to the input buffer and modifies a block of samples based on a result from the comparator. An output buffer is coupled to the sample corrector to hold the modified block of samples. A comb filter is coupled to the output buffer, and generates first and second three-dimensional color values based on the modified block of samples.
    • 在一个示例中,公开了数字视频重新采样器和解码器。 输入缓冲器耦合到至少两次过采样的视频信号的源。 水平同步检测器耦合到输入缓冲器,并检测水平同步边界。 计数器耦合到水平同步检测器以对水平同步边界之间的数量进行计数。 比较器耦合到计数器,并将计数的样本数与参考计数进行比较。 样本校正器耦合到输入缓冲器,并且基于比较器的结果修改采样块。 输出缓冲器耦合到样本校正器以保持修改的样本块。 梳状滤波器耦合到输出缓冲器,并且基于经修改的样本块产生第一和第二三维颜色值。