作者: Hiroshi Yamazaki , Sakae Okazaki
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摘要: Apparatus for superimposing graphic title image signals onto an input video signal to produce a picture having graphics, such as images, superimposed thereon. Graphic data is written into memory and subsequently read out under the control of address generator whose read-out addresses are shifted at given repetition rate change positioning relative signal, thereby producing scrolling effect graphics across plane.