| 摘要 |
<p>PURPOSE:To realize a suitable display in each region. CONSTITUTION:An area setting part 30 sets an area on the screen of a CRT 26; one out of a plurality of video signals VD1 to VDn is selected at each area; a processing content is selected and written into a display memory 22. The plurality of video signals VD1 to VDn correspond to respectively different transmission frequencies. A transmission frequency and a processing operation can be selected and used in each area; good display can be performed over the whole region of the screen.</p> |
