複数垂直フォーマット用集中制御システム

Centralized control system for plural vertical formats

Abstract

(57)【要約】 【課題】 ラスタの垂直方向の高さが互いに異なる複数 の垂直フォーマットを選択的に表示する際の、各フォー マットに対する相異なる集中誤差補正を適正に行なうこ と。 【解決手段】 表示のために、複数の垂直フォーマット のうちの1つを選択する手段(90)と、各フォーマッ トごとに、ラスタ上の複数点に対する集中補正値の組を 求めてこれを記憶するメモリ(46)と、互いに隔たっ た上記複数点相互の中間における適切に重み付けされた 中間集中補正値を作り出す補間器(40)とより成る。
PROBLEM TO BE SOLVED: To enable adapting to different vertical formats and excellently operating by generating a nonlinearly weighted intermediate centralized correction value mutually between the mutually separated positions of a raster position for the respective sets of centralized correction values. SOLUTION: A selector starts the operation in one of usable vertical modes, an address generator 44 receives control signals from a PLL/timing generator, successively generates regular addresses as output and supplies them to a data storage device 46 and the data storage device 46 stores the known centralized correction value in a digital form. A correction value interpolator/signal generator 40 is provided with a digital centralized correction value storage means 46, 8-bit latches L1-L4 and a pair of multiplication type digital/analog converters 56 and 58 for which the sum of the output is obtained by an operational amplifier 60. Then, the nonlinearly weighted intermediate centralized correction value mutually between the mutually separated positions of the raster position is generated for the respective sets of the centralized correction values. COPYRIGHT: (C)1998,JPO

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