Sughrue, Mion, Zinn, Macpeak & Seas
High speed video image printing method and an apparatus therefor
 Disclosed are a printing method capable of high speed printing of a color video printer using a frame-sequential method, and a printing apparatus adapted thereto. The printing method comprises the steps of sampling a video signal by two times for a duration of one horizontal scanning line within one frame to generate digitally converted pixel data, alternately writing the digitally converted pixel data in two line memories by frame periods, and alternately reading the digital data which is stored in the two line memories to perform printing of the read digital data. Here, two vertical lines are written in a first line memory during one frame, and the written two vertical lines are printed for a subsequent frame while alternately writing in a second memory two more vertical lines which are sequential to the printed vertical lines. Accordingly, a doubled printing speed is obtained compared with the conventional method of alternately printing single lines. 
Samsung Electronics Co. Ltd.
H H
H04N H04N
inventional inventional
Heui-kuk
Kwak