| 摘要 |
<p>A system of shortening transition time of transitions occurring in video signals is disclosed which includes circuitry for multiplying a function of the full wave rectified first differential of the input video signal by a function of the second differential of the input video signal and then adding the waveform resulting from such a product to the properly delayed input signal to provide a crispened output video signal. The system may be provided to crispen the luminance and chroma signals of a color television video signal. A system for shortening transitions of low bandwidth chroma information with higher bandwidth luminance information is also disclosed.</p> |
