发明名称 |
Color signal aperture correction system having automatically selected source signal |
摘要 |
A color video camera includes circuitry which generates a peaking signal that is applied to each of the color signals to enhance high-frequency components of the video signal relative to low-frequency components. The circuitry adds high-frequency components from the green video signal, as the peaking signal, at instants when the amplitudes of the green and red color signals are approximately equal. If there is a significant difference between the amplitudes of the red and green video signals, however, a combination of the high frequency components of both of these signals is used as the peaking signal. In one exemplary embodiment of the invention, the peaking signal includes in-band horizontal and vertical contour signals and out-of-band aperture correction signal.
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申请公布号 |
US5298981(A) |
申请公布日期 |
1994.03.29 |
申请号 |
US19920964707 |
申请日期 |
1992.10.22 |
申请人 |
PANASONIC TECHNOLOGIES, INC. |
发明人 |
TOPPER, ROBERT J.;DISCHERT, LEE R. |
分类号 |
H04N9/68;H04N9/64;(IPC1-7):H04N9/64;H04N5/14;H04N5/208 |
主分类号 |
H04N9/68 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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