| 摘要 |
<p>The circuit for improving the picture sharpness includes an image signal delay circuit (10) providing various delay signals, a two dimensional space filter circuit (20) filtering the various delay signals, a detector (30) selecting the proper space filter by detecting the correlation of vertical and horizontal directions between scanning lines, a time axis converting circuit (40) converting the time axis with the input interlaced scanning signal and the output of the selected filter, and a filter selection circuit (50) selecting the one filter out of the space filters in the filter circuit (20).</p> |
