首页> 外国专利> Recording/reproducing apparatus for digital composite video signal with means for synchronising colour subcarrier phase

Recording/reproducing apparatus for digital composite video signal with means for synchronising colour subcarrier phase

机译:具有用于使彩色副载波相位同步的装置的数字复合视频信号的记录/再现装置

摘要

In a recording/reproducing apparatus for digital composite video signal, a phase sync circuit (110) for synchronizing color subcarrier phases, a sync/ID adding circuit (9), a sync/ID detecting circuit (12), a memory control circuit (13), a memory (14), and a phase relocating circuit (111), are provided for obtaining correct hues of the digital composite video signal when high-speed reproducing. When high-speed reproducing, the memory control circuit (13) is operated such that corresponding sampled signals in the memory (14) are stored in the same address with the same color subcarrier phase. As a result, a high image quality is achieved by the recording/reproducing apparatus even when high-speed reproducing with low manufacturing cost.
机译:在用于数字复合视频信号的记录/再现设备中,用于同步彩色子载波相位的相位同步电路(110),同步/ ID相加电路(9),同步/ ID检测电路(12),存储控制电路(如图13所示,提供了存储器(14)和相位重定位电路(111),用于在高速再现时获得数字复合视频信号的正确色调。当高速再现时,操作存储器控制电路(13),以使存储器(14)中的相应采样信号被存储在具有相同颜色副载波相位的相同地址中。结果,即使在以低制造成本进行高速再现的情况下,也可以通过记录/再现设备获得高图像质量。

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