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1. 发明授权

US6052157A System and method for separating chrominance and luminance components of a color television system 失效
标题翻译：用于分离彩色电视系统的色度和亮度分量的系统和方法
公开(公告)号：US6052157A
公开(公告)日：2000-04-18
申请号：US905187
申请日：1997-08-04
申请人： Paul J. Weihs
发明人： Paul J. Weihs
IPC分类号： H04N9/78 , H04N9/50
CPC分类号： H04N9/78
摘要： A method and system for separating chrominance and luminance information from a composite spectral signal is disclosed. The method and system comprises demodulating the composite signal prior to separation of the chrominance or luminance information to provide a first U subcomponent and a first V subcomponent and then processing and filtering the first U subcomponent and the first V subcomponent to provide a second U subcomponent and a second V subcomponent, respectively. The method and system also includes combining the second U subcomponent and the second V subcomponent to provide the remodulated chrominance information. In so doing chrominance information is provided in which artifacts are substantially attenuated. Accordingly, by "bypassing" the encoded space to provide "clean U and V" signals directly from the composite signal, the chrominance information or component has no inherent phase (hue) sensitivity to its simultaneously demodulated U and V subcomponents as it does when utilizing conventional comb filtering techniques. Therefore, artifacts in the subcomponents is attenuated. Hence, the artifacts within the remodulated chrominance and extracted luminance information are also substantially attenuated.
摘要翻译：公开了一种用于从复合频谱信号中分离色度和亮度信息的方法和系统。所述方法和系统包括在分离色度或亮度信息之前对复合信号进行解调以提供第一U子组件和第一V子组件，然后处理和过滤第一U子组件和第一V子组件以提供第二U子组件，分别是第二个V子组件。该方法和系统还包括组合第二U子组件和第二V子组件以提供重新调制的色度信息。在这样做时，提供了色度信息，其中伪像基本上被衰减。因此，通过“旁路”编码空间以直接从复合信号提供“干净的U和V”信号，色度信息或分量对于其同时解调的U和V子组件没有固有的相位（色相）灵敏度，如同利用常规梳状滤波技术。因此，子部件中的伪像被衰减。因此，重新调制的色度和提取的亮度信息中的伪影也被大大衰减。

2. 发明授权

US5936621A System and method for reducing flicker on a display 失效
标题翻译：用于减少显示屏上闪烁的系统和方法
公开(公告)号：US5936621A
公开(公告)日：1999-08-10
申请号：US672597
申请日：1996-06-28
申请人： David Medin , Paul J. Weihs
发明人： David Medin , Paul J. Weihs
IPC分类号： G09G1/14 , H04N5/44 , G09G5/00
CPC分类号： H04N7/0132 , G09G1/146 , G09G2320/0247 , Y10S348/91
摘要： A system and method for reducing flicker in a display system using a flicker reduction circuit. The display includes a series of scan lines, each of which includes a set of pixels. The display is controlled by a video signal, which includes a series of video lines containing control variables that control the intensity of the pixels in the corresponding scan line. In one embodiment of the flicker reduction circuit, the flicker reduction circuit receives two of the video lines as input, and delays one of the one video lines using a memory, such that its control variables are synchronized in time with the other undelayed video line. The difference between the intensity of the synchronized pairs of control variables is determined, and the difference is fed into a look-up table. Based on the difference, the look-up table provides a control value that is then applied to one of the original synchronized control variables to provide a modified control variable that reduces flicker on the display screen.
摘要翻译：一种用于减少使用闪烁减少电路的显示系统中的闪烁的系统和方法。显示器包括一系列扫描线，每条扫描线包括一组像素。显示器由视频信号控制，视频信号包括一系列视频行，其中包含控制相应扫描线中像素强度的控制变量。在闪烁降低电路的一个实施例中，闪烁降低电路接收两条视频线作为输入，并且使用存储器延迟一条视频线中的一条，使得其控制变量与另一个未延迟的视频行在时间上同步。确定同步控制变量对的强度之间的差异，并将差值馈送到查找表中。基于差异，查找表提供了一个控制值，然后将其应用于原始的同步控制变量之一，以提供一个减少显示屏上闪烁的修改控制变量。

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