公开(公告)号：US5184221A

公开(公告)日：1993-02-02

申请号：US783826

申请日：1991-10-29

申请人： Yuji Nishi ,  Shigehiro Ito ,  Tatsushi Kuguchi ,  Kazuyuki Ebihara

发明人： Yuji Nishi ,  Shigehiro Ito ,  Tatsushi Kuguchi ,  Kazuyuki Ebihara

IPC分类号： H04N5/21 ,  H04N9/64

CPC分类号： H04N5/211

摘要： An apparatus for removing a ghost component which disturbs a picture signal by means of a ghost canceling reference signal included therein. The reference signal is extracted from the picture signal and judged as to whether it has a specific level in a reference time interval. The extracted reference siganl is also judged as to whether a color burst signal is canceled. If both judgements are positive, a judgement signal is generated which allows the extracted signal to be examined how it is disturbed by the ghost component. In response to the examination, the ghost component is removed from the picture signal.

摘要翻译： 一种用于去除通过其中包括的重影消除参考信号来干扰图像信号的重影分量的装置。 从图像信号中提取参考信号，判断参考信号是否在基准时间间隔内具有特定的电平。 所提取的参考信标也被判定为是否消除了色同步信号。 如果两个判断都是正的，则产生判断信号，该判断信号允许检查提取的信号如何被重影分量干扰。 响应于检查，从图像信号中去除重影分量。