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    • 10. 发明申请
    • Apparatus for Auto Phase Detection for Video Signal and Method Thereof
    • 视频信号自动相位检测装置及其方法
    • US20110051009A1
    • 2011-03-03
    • US12841442
    • 2010-07-22
    • Kun-Nan ChengChih-Tien ChangChit-Keng Huang
    • Kun-Nan ChengChih-Tien ChangChit-Keng Huang
    • H04N5/14
    • H04N5/144H04N5/04
    • An auto phase detection apparatus for automatically detecting a target sampling phase is provided. The auto phase detection apparatus includes a phase decider for generating a plurality of phase control signals; a sample clock generator, coupled to the phase decider, for generating a plurality of sample clock signals according to the phase control signals; an analog-to-digital converter (ADC), coupled to the sample clock generator, for converting an analog video signal to a digital signal according to the sample clock signals; a phase detector, coupled to the ADC and the phase decider, for generating a plurality of phase detection results according to the digital signal; and a motion detector, coupled to the ADC and the phase decider, for generating a motion detection result by detecting a motion in the digital signal. The phase decider determines the target sampling phase from the phase control signals according to the phase detection results and the motion detection result.
    • 提供了一种用于自动检测目标采样相位的自动相位检测装置。 自动相位检测装置包括用于产生多个相位控制信号的相位判定器; 耦合到相位决定器的采样时钟发生器,用于根据相位控制信号产生多个采样时钟信号; 耦合到采样时钟发生器的模数转换器(ADC),用于根据采样时钟信号将模拟视频信号转换成数字信号; 耦合到ADC和相位决定器的相位检测器,用于根据数字信号产生多个相位检测结果; 以及耦合到ADC和相位决定器的运动检测器,用于通过检测数字信号中的运动来产生运动检测结果。 相位决定器根据相位检测结果和运动检测结果根据相位控制信号确定目标采样相位。