| 摘要 |
<p>PURPOSE:To infinitely perform a smooth scroll while an operation is continued by making the most of a plurality of memory regions ringlike and plotting input data. CONSTITUTION:Measured data detected by detectors D1 and D2 are inputted to a multiplexer 1, converted to digital signals by an A/D converter 2 and taken in a CPU 3 to be stored in a V-RAM (image memory) 4 in time sequence. The measured data stored in the RAM 4 are displayed on a CRT display 6 via a CRT controller 5 under the control of the CPU 3. The memory regions M1-M3 which the RAM 4 has have a capacity corresponding to that of the display screen of the display 6 and the data in what portion are displayed is determined by the display initiating position specified by the CPU 3. In what positions updated input data are plotted is determined by the plotting position specification of the CPU 3. Thus, a semipermanent smooth scroll is performed by judging means for three plotting positions, control means and so on for three display initiating positions, plotting positions and the like.</p> |
