发明名称 CONTOUR CORRECTION CIRCUIT
摘要 PROBLEM TO BE SOLVED: To provide a contour correction circuit that can suppress or eliminate an overshoot caused in a contour part of an image of a television receiver or a personal computer. SOLUTION: Amplitude limit signal generating circuits 6, 13 obtain an amplitude limit signal based on a difference between a signal of a target pixel and a signal of a pixel apart from the target pixel by n (n is an integer of 1 or over) pixels to the right or to the lower side and a difference between the signal of the target pixel and a signal of a pixel apart from the target pixel by n (n is an integer of 1 or over) pixels to the left or to the upper side and an amplitude control circuit 7 limits an absolute value of a high frequency signal extracted from the pixel signal by a high frequency signal extract circuit 5 to be the amplitude limit signal or below.
申请公布号 JP2002335424(A) 申请公布日期 2002.11.22
申请号 JP20010138163 申请日期 2001.05.09
申请人 MITSUBISHI ELECTRIC CORP 发明人 MINAMI KOJI
分类号 G09G5/36;H04N5/14;H04N5/208;(IPC1-7):H04N5/208 主分类号 G09G5/36
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