| 摘要 |
<p>PURPOSE:To easily match a signal level between a color scanner and a simulation unit by compressing the time base of data through a line memory and the like in a level regulation circuit and supplying the signal to an oscilloscope. CONSTITUTION:The level regulation circuit consists of level regulators 120-y-120-k etc., corresponding to color components, and it level-converts the handling voltage level of a picture signal from the level of the color scanner to that of the simulation unit. In the case of the regulator 120-y, gray scale signals of one line are alternately written in plural line memories 176, etc., at every rotation of a reading drum, and storage data, whose time base is compressed, is repeatedly read out from an unwritten line memory. The color components of Y, M, C and K of the gray scale signal are read out line by line from a selector 200, and are supplied to the oscilloscope 160 through a D/A converter 202, whereby a waveform synthesized to one screen is displayed. Thus, four component signals in different colors are easily recognized, and a matching circuit 172 easily adjusts the level.</p> |
