Improvement circuit for picture quality
专利汇可以提供Improvement circuit for picture quality专利检索，专利查询，专利分析的服务。并且PURPOSE: To attain satisfactory correction by removing preshoot and overshoot added to a contour correction signal by means of maximum level signal and minimum level signal level-selected by a delaying element.
CONSTITUTION: The maximum level and the minimum level are respectively selected and outputted among levels which signals from the delay signal generation means 23 and 24 show in a same time. Preshoot and overshoot added to the contour correction signals are removed by the signals from maximum level output means 25 and 29∼31 and those from minimum level output means 26 and 32. Even if ringings occur in the outline correction signals, they do not occur in the level change period of the signals SMAX from the maximum level output means 25 and 29∼31 and that of the signals SMIN from the minimum level output means 26 and 32, whereby they are removed by the flat parts of respective signals SMAX and SMIN. Thus, satisfactory correction can be executed.
COPYRIGHT: (C)1988,JPO&Japio，下面是Improvement circuit for picture quality专利的具体信息内容。
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