Employing the interlacedscanning, current TV system can compress the frequency band of TV signal effectively and facilitate transmission.
现行的广播电视系统由于采用隔行扫描方式，从而有效地压缩了电视信号的频带，有利于传输；
2
Said invention also can inhibit frame-frequency flash during contour scanning in the interlacedscanning system, and can produce image contour intensified effect.
本发明还可抑制隔行扫描系统中的轮廓扫描帧频闪烁，产生图象轮廓增强效果。
3
Each row from the left to the right of each frame according to the interlacedscanning, from top to bottom odd lines, even two sweeping, used to reduce flicker sensation.