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    • 2. 发明申请
    • Phase-tolerant pixel rendering of high-resolution analog video
    • 高分辨率模拟视频的相容像素渲染
    • US20060066593A1
    • 2006-03-30
    • US10952329
    • 2004-09-28
    • Bruce AndersonKevin Blietz
    • Bruce AndersonKevin Blietz
    • G09G5/00
    • G09G5/008
    • Methods for recovering high-resolution images from an analog video interface by autonomously correcting for phase errors between a synchronized clock signal to a sampling analog-to-digital converter and the input video signal. A global phase adjustment first detects video transitions in the sampled video data stream in order to determine and then select the optimum clock phase over entire video frames for rendering the pixels of the video input. This corrects for long-term phase errors, such as those from timing tolerances in circuit components and timing tolerances in the video input. A local phase adjustment selects the samples used for rendering individual pixels according to an algorithm that avoids the selection of samples that may be located within video transition regions. This corrects for short-term phase errors, such as those from jitter and phase drift on the sample clock.
    • 用于通过自主地校正与采样模数转换器的同步时钟信号和输入视频信号之间的相位误差来从模拟视频接口恢复高分辨率图像的方法。 全局相位调整首先检测采样视频数据流中的视频转换,以便确定然后在整个视频帧上选择最佳时钟相位,以便渲染视频输入的像素。 这纠正了长期相位误差,如电路元件的时序容差和视频输入的时序容差。 局部相位调整根据避免选择可能位于视频转换区域内的样本的算法来选择用于渲染各个像素的样本。 这样可以纠正短时相位误差,例如采样时钟抖动和相位漂移的相位误差。