| 摘要 |
<p>PURPOSE: To provide a waveform shaping circuit capable of improving the reproducibility of the duty factor of reproducing control signals. CONSTITUTION: This circuit is constituted of the waveform shaping circuits 7 and 8 of different sensitivity for waveform-shaping input signals, a switch 12 for selecting one of the waveform shaping circuits 7 and 8, a level detector 9 for detecting the level of the frequency of the input signals and a flip-flop 10 for controlling a switching means corresponding to the detected result of the level detector 9. Then, corresponding to the detected result of the level detector 9 of the input signals, the waveform shaping circuits 7 or 8 capable of shaping waveforms is selected. Thus, the reproducibility of the duty factor of the reproducing control signals is improved.</p> |
