摘要
在不影响普通摄像机正常摄像功能的前提下对其略加改进，使之成为外同步摄像机．然后，加上一些外围线路与ＳＥＧ－１２１０Ｐ特技信号发生器联机，实现键控插入文字或图形．
Under the condition of the littie improvement of the common camera and its normal function not to be affected,was the camera changed into Ext Sync Camera.And then,some Ext curcuit were added to SEG-1210p trick-signed generator, the inserting of word or / and figure by keyed trick was realized.
