| 摘要 |
PURPOSE:To make it possible to perform natural printing recording of the sharp waveform of a level, by inputting a digital waveform to three latches, selecting the exclusive OR of the outputs and the output through a decoder, and printing the result. CONSTITUTION:A digital waveform and the output of an A/D converter are sequentially inputted to latches 2, 3, and 4. The outputs of the latches are inputted to exclusive OR gates 17 and 18 through digital comparators 5, 6, and 7, AND gates 11, 12, and 13, and shift registers 14, 15 and 16. One of the outputs of the gates 17 and 18 and the output of a decoder 19 is selected and outputted based on the control input from a digital comparator 20. Then, a vertical line, which connects high and low states, can be outputted. Thus, natural printing recording can be performed. |
