| 摘要 |
PURPOSE:To execute fine picture display prevented from moire phenomenon by inputting the prescribed number of picture elements at an equal interval in each display picture element, selecting the required number of picture elements at random out of the input picture elements to add the selected picture elements and then displaying the signal. CONSTITUTION:The data of n bits are read out from an ROM 51 by a signal from a counter 50 and sent to an adder 8. Simultaneously, n data are successively read out from a memory 6 and sent to the adder 8. The contents of the ROM 51 consist of ''1'' and ''0'', and only when ''1'', the contents are added by the adder 8. Consequently, the n data are successively read out, and when the contents of the ROM 51 is ''1'', l data are added. Subsequently, a signal is sent from the counter 50 to the adder 8, the contents of the adder 8 are sent to a recording head 9 and then the contents of the adder 8 are turned to ''0''. Repeating said operation makes it possible to read out data irregularly in accordance with the contents of the ROM 51. |
