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1. 发明授权

US5291280A Motion detection between even and odd fields within 2:1 interlaced television standard 失效
标题翻译： 2：1隔行电视标准之间的偶场和奇场之间的运动检测
公开(公告)号：US5291280A
公开(公告)日：1994-03-01
申请号：US878725
申请日：1992-05-05
申请人： Yves C. Faroudja , Dong Xu , Peter Swartz
发明人： Yves C. Faroudja , Dong Xu , Peter Swartz
IPC分类号： H04N5/14 , H04N7/01 , H04N7/26 , H04N7/13
CPC分类号： H04N7/014 , H04N5/144 , H04N7/0115 , Y10S348/911
摘要： A motion detector generates a field motion detection signal from information contained in adjacent fields of a two-to-one interlaced format video signal. The motion detector comprises an input for receiving the video signal from a source, a first delay for delaying the video signal at the input by one field period less one half of one scanning line period and for providing a first delayed output, a second delay for delaying the video signal at the input by one field period plus one half of one scanning line period and for providing a second delayed output, a first subtraction circuit for subtracting the first delayed output from the video signal to provide a first difference, a second subtraction circuit for subtracting the second delayed output from the video signal to provide a second difference, and a comparison circuit for comparing the first difference with the second difference and for putting out a selected one thereof having a lesser absolute magnitude as the field motion detection signal. A film mode sequence pattern interruption detector using the motion detector is also disclosed.
摘要翻译：运动检测器从包含在两对一隔行格式视频信号的相邻场中的信息产生场运动检测信号。运动检测器包括用于从源接收视频信号的输入端，用于将输入端的视频信号延迟一个场周期减去一个扫描行周期的一半并用于提供第一延迟输出的第一延迟，第二延迟将输入处的视频信号延迟一个场周期加上一个扫描行周期的一半，并提供第二延迟输出;第一减法电路，用于从视频信号中减去第一延迟输出以提供第一差值;第二减法电路，用于从视频信号中减去第二延迟输出以提供第二差值;以及比较电路，用于将第一差异与第二差异进行比较，并将其具有较小绝对量值的所选择的一个作为场运动检测信号。还公开了使用运动检测器的胶片模式序列图案中断检测器。

2. 发明授权

US5844617A Method and apparatus for enhancing the vertical resolution of a television signal having degraded vertical chrominance transitions 失效
标题翻译：用于增强具有劣化的垂直色度转换的电视信号的垂直分辨率的方法和装置
公开(公告)号：US5844617A
公开(公告)日：1998-12-01
申请号：US562279
申请日：1995-11-22
申请人： Yves C. Faroudja , Dong Xu
发明人： Yves C. Faroudja , Dong Xu
IPC分类号： H04N11/04 , H04N5/14 , H04N5/44 , H04N9/64 , H04N9/68 , H04N11/20 , H04N7/24
CPC分类号： H04N9/646 , H04N5/142 , H04N7/012 , H04N7/0132
摘要： A received 4-2-0 format, 2-1 interlaced digital component video signal is upconverted to a 4-2-2 format, 2-1 interlaced digital component video signal and a vertical chrominance bandwidth expansion enhancement signal is combined with the chrominance components in order to more closely simulate the wider bandwidth vertical chrominance resolution of the original 4:2:2 format signal from which the 4:2:0 format signal was derived. In a first embodiment, the vertical chrominance enhancement signal is derived from vertical transitions in the luminance component of the 4:2:0 format signal. In a second embodiment, the vertical chrominance enhancement signal is derived from vertical transitions in the luminance component of the 4:2:0 format signal when such vertical transitions are present and, in the absence of a luminance transition, the vertical chrominance enhancement signal is derived from the sampling-rate-reduced chrominance components of the 4:2:0 format signal. In all embodiments, the vertical chrominance enhancement signal is a "bandwidth enhancement" signal which simulates a wide bandwidth vertical detail signal. The vertical chrominance detail signal is self-service from the 4:2:0 format video signal itself and requires no auxiliary signal to be transmitted or stored.
摘要翻译：接收到的4-2-0格式，2-1隔行数字分量视频信号上变频为4-2-2格式，2-1隔行数字分量视频信号和垂直色度带宽扩展增强信号与色度分量以便更紧密地模拟原始4：2：2格式信号的4：2：0格式信号的宽带宽垂直色度分辨率。在第一实施例中，垂直色度增强信号是从4:2:0格式信号的亮度分量的垂直转变导出的。在第二实施例中，当存在这样的垂直转换时，垂直色度增强信号是从4:2:0格式信号的亮度分量的垂直变换导出的，并且在没有亮度转换的情况下，垂直色度增强信号是衍生自4：2：0格式信号的采样率降低的色度分量。在所有实施例中，垂直色度增强信号是模拟宽带宽垂直细节信号的“带宽增强”信号。垂直色度细节信号是从4：2：0格式的视频信号本身自服务的，不需要传输或存储辅助信号。

3. 发明授权

US06222589B1 Displaying video on high-resolution computer-type monitors substantially without motion discontinuities 失效
标题翻译：在高分辨率计算机型显示器上显示基本上没有运动不连续性的视频
公开(公告)号：US06222589B1
公开(公告)日：2001-04-24
申请号：US08695837
申请日：1996-08-08
申请人： Yves C. Faroudja , Xu Dong , Dong Wei
发明人： Yves C. Faroudja , Xu Dong , Dong Wei
IPC分类号： H04N701
CPC分类号： H04N7/0112 , G09G2310/0229 , H04N7/012 , H04N7/0132
摘要： A convectional 2-1 interlaced (nominally 50 Hz field rate or nominally 60 Hz field rate) television signal is converted to a form suitable for display on a progressively-scanned variable-frame-rate high-resolution computer-type monitor. First, a succession of progressively-scanned video frames is derived from the interlaced television signal and each frame is repeated at least twice in succession When the interlaced television sign is derived from a motion picture source, the progressively scanned frames are derived by merging opposite polarity fields derived from tho same motion picture frame. For other sources, other interlace-to-progressive scan techniques, such as line duplication or line interpolation, are employed. The sequences of repeated progressively-scanned frames are written into a two frame memory at rate derived from the timing of the progressively-scanned video frames and are read out at a rate derived from the timing of the monitor's frame rate. Frames are skipped or duplicated in order to prevent memory underflow or overflow. Motion-discontinuity-free video displays at refresh rates from 50 Hz to 100 Hz, for 50 Hz inputs, and from 60 Hz to 120 hz for 60 Hz inputs may be achieved.
摘要翻译：对流2-1隔行扫描（标称50Hz场速率或标称60Hz场频）电视信号被转换成适合于逐渐扫描的可变帧速率高分辨率计算机型监视器上显示的形式。首先，逐行扫描的视频帧是从隔行扫描的电视信号导出的，并且每帧重复至少两次当从运动图像源导出隔行扫描的电视符号时，逐渐扫描的帧通过合并相反的极性从相同的运动相框派生的领域。对于其他来源，采用其它交错到逐行扫描技术，例如线路复制或线插补。重复逐行扫描的帧的顺序以逐渐扫描的视频帧的定时得到的速率写入两帧存储器，并以从监视器的帧速率的定时导出的速率被读出。帧被跳过或重复，以防止内存下溢或溢出。可以实现50 Hz至100 Hz刷新率，50 Hz输入以及60 Hz至60 Hz输入的60 Hz至120 Hz的运动不连续视频。

4. 发明授权

US5237414A Video enhancer with separate processing of high and low level transitions 失效
标题翻译：具有高，低电平转换的单独处理的视频增强器
公开(公告)号：US5237414A
公开(公告)日：1993-08-17
申请号：US844293
申请日：1992-03-02
申请人： Yves C. Faroudja
发明人： Yves C. Faroudja
IPC分类号： H04N5/208
CPC分类号： H04N5/208
摘要： A full dynamic-range video enhancer employs a detail process for lower level transitions in a video signal stream and a spectrum expander for higher level transitions. The characteristics of the detail processor enhancement signal are such that when combined with the main signal path, the rise times of lower level transitions are shortened, but with substantially no accompanying increase in the overall spectral bandwidth. The characteristics of the spectrum expander enhancement signal are such that when combined with the main signal path, the rise times of higher level transitions are shortened, but with an accompanying increase in the overall spectral bandwidth while maintaining low preshoot and overshoot characteristics. For a rising transition level the video enhancer provides enhancement initially by the detail processor, then a combination of the detail processor and the spectrum expander, and then by the spectrum expander. The video enhancer may advantageously be used in a television receiver following a line doubler.
摘要翻译：全动态范围视频增强器采用视频信号流中的较低级别转换的详细过程和用于更高级别转换的频谱扩展器。细节处理器增强信号的特征使得当与主信号路径组合时，较低电平转换的上升时间被缩短，但是基本上不伴随着总的频谱带宽的增加。频谱扩展器增强信号的特性使得当与主信号路径组合时，较高电平转换的上升时间被缩短，但伴随着总谱带宽的增加同时保持低的预冲和过冲特性。对于上升的转换级别，视频增强器最初由细节处理器提供增强，然后是细节处理器和频谱扩展器的组合，然后由频谱扩展器提供增强。视频增强器可以有利地用在跟随线倍增器的电视接收机中。

5. 发明授权

US4967271A Television scan line doubler including temporal median filter 失效
标题翻译：电视扫描线倍增器包括时间中值滤波器
公开(公告)号：US4967271A
公开(公告)日：1990-10-30
申请号：US464009
申请日：1990-02-05
申请人： Jack J. Campbell , Yves C. Faroudja , Thomas C. Lyon
发明人： Jack J. Campbell , Yves C. Faroudja , Thomas C. Lyon
IPC分类号： H04N5/44
CPC分类号： H04N7/012
摘要： A television line doubler having a video pixel interpolator and a multi-component motion detector including at least one frame-recursive component for detecting a motion value in the area of the pixel to be interpolated. A second switch switches its output to an interpolated pixel time compression circuit in accordance with the detected motion value. The second switch and the motion detector provide a proportional switch with an onset at approximately 2 to 5 IRE units of motion value and operating in accordance with the absolute amplitude of the motion value. Full switchover to the intra-field interpolator means occurring at approximately 5 to 15 IRE units of motion value amplitude. The motion detector stretches the detected motion to a predetermined number of adjacent pixel location in the line domain and a recirculation loop enables a component of motion to be recirculated.
摘要翻译：一种具有视频像素内插器和多分量运动检测器的电视线倍增器，包括至少一个帧递归分量，用于检测要插值的像素的区域中的运动值。第二开关根据检测到的运动值将其输出切换到内插像素时间压缩电路。第二开关和运动检测器提供比例开关，其开始时间大约为2到5个IRE运动值单位，并且根据运动值的绝对幅度运行。完全切换到场内插值器意味着以大约5到15个IRE单位的运动值幅度发生。运动检测器将检测到的运动拉伸到线域中的预定数量的相邻像素位置，并且循环回路使运动分量能够再循环。

6. 发明授权

US4893176A Adaptive comb filter for quadrature modulated color television systems 失效
标题翻译：用于正交调制彩色电视系统的自适应梳状滤波器
公开(公告)号：US4893176A
公开(公告)日：1990-01-09
申请号：US193230
申请日：1988-05-11
申请人： Yves C. Faroudja
发明人： Yves C. Faroudja
IPC分类号： H04N9/78
CPC分类号： H04N9/78
摘要： A method for processing a quadrature modulated color television picture signal including a luminance component and a chrominance component to reduce cross-color and cross-luminance artificacts in a resultant signal includes in an encoding process the steps of: comb filtering the quadrature modulated chrominance component in a comb filter structure wherein a number of delays between 2 and 13 is adaptively determined by overlap between chrominance and luminance, and the delay is a predetermined one of line scan period, frame scan period, and frame/line scan periods, to put out a comb filtered chroma component; processing the luminance component by passing the luminance component through two complementary filters both symmetrically centered about a chrominance component subcarrier frequency, one filter comprising a band pass filter and the other filter comprising a band reject filter; comb filtering the luminance signal passing through the band pass filter in a comb filter structure wherein a number of delays between 2 and 13 is adaptively determined by overlap between chrominance and luminance, and the delay is the same predetermined one of line scan period, frame scan period, and frame/line scan periods to produce a comb filtered high frequency luminance signal; and adding in phase the comb filtered high frequency luminance signal and the signal passing through the band reject filter in order to provide a comb filtered full bandwidth luminance signal; and, combining in phase the comb filtered chroma component and the comb filtered full bandwidth luminance signal in order to put out a composite signal for transmission or recording. Comb filter decoding having fixed delays are advantageously employed within a system of the present invention.
摘要翻译：一种用于处理包括亮度分量和色度分量的正交调制彩色电视图像信号的方法，用于在结果信号中减少交叉色和交叉亮度特性包括在编码处理中包括以下步骤：梳状滤波正交调制色度分量梳状滤波器结构，其中通过色度和亮度之间的重叠来自适应地确定2和13之间的延迟，并且延迟是行扫描周期，帧扫描周期和帧/线扫描周期中的预定的一个，以推出梳状滤波色度分量; 通过使亮度分量通过两个以色度分量子载波频率对称为中心的互补滤波器来处理亮度分量，一个滤波器包括带通滤波器，另一个滤波器包括带阻滤波器; 梳状滤波通过梳状滤波器结构的通过带通滤波器的亮度信号，其中2和13之间的延迟由色度和亮度之间的重叠自适应地确定，并且延迟是相同的预定行扫描周期，帧扫描周期和帧/线扫描周期，以产生梳状滤波的高频亮度信号; 并将梳状滤波高频亮度信号和通过带阻滤波器的信号相位相加，以提供梳状滤波全带宽亮度信号; 并且组合梳状滤波色度分量和梳状滤波全带宽亮度信号，以便输出用于传输或记录的复合信号。具有固定延迟的梳状滤波器解码有利地用于本发明的系统内。

7. 发明授权

US4847681A Low level television signal transition booster 失效
标题翻译：低电平电视信号转换助推器
公开(公告)号：US4847681A
公开(公告)日：1989-07-11
申请号：US178126
申请日：1988-04-06
申请人： Yves C. Faroudja , Jack J. Campbell
发明人： Yves C. Faroudja , Jack J. Campbell
IPC分类号： H04N5/14 , H04N5/208 , H04N9/77
CPC分类号： H04N5/208
摘要： In a television system a transition level signal booster decreases transition time of low level transitions within a video signal without creating artifacts incident to high level transitions within the video signal. The booster includes an input for receiving the video signal, an output for putting out a main path video signal in which transition times of low level transitions have been decreased, a main path for the video signal extending between the input and the output, the main path including a main path adder means for adding a transition boost signal to the video signal, a transition boost signal generator including a connection to said input for receiving the video and for generating the transition boost signal, the generator comprising: a high frequency transition signal generator for generatigng a high frequency transition signal incident to the detection of a transition level in the video signal, a wave shaper including a first path having a delay match in series therein for putting out a first signal and a second path in parallel with the first path, the second path including sign removal and shaper means therein for generating a second control signal having a decreasing amplitude for each video transition having a magnitude above a predetermined amount, a first multiplier for multiplying the first signal by the second signal to generate the transition boost signal, said multiplier being connected to said main path adder means so that said transition boost signal may be added to the main path video signal, thereby to decrease the transition times of low transition levels.

8. 发明授权

US4731660A Processing methods using adaptive threshold for removal of chroma/luminance cross-talk in quadrature-modulated subcarrier color television systems 失效
标题翻译：使用自适应阈值去除正交调制子载波彩色电视系统中色度/亮度串扰的处理方法
公开(公告)号：US4731660A
公开(公告)日：1988-03-15
申请号：US17166
申请日：1987-02-20
申请人： Yves C. Faroudja , Jack J. Campbell
发明人： Yves C. Faroudja , Jack J. Campbell
IPC分类号： H04N9/78 , H04N9/64 , H04N11/14
CPC分类号： H04N9/646
摘要： A comb filter for improved cross-color reduction with improved visible diagonal resolution is provided for processing a luminance component of a quadrature modulated color subcarrier television signal in the vicinity of the color subcarrier pass band. The comb filter comprises an input and an output, and has a first path including a delay circuit for delaying the luminance component and a subtraction circuit connected between the input and the output, and has a second path including a chrominance type comb filter, a band pass filter for passing a spectrum in the vicinity of the color subcarrier pass band both being followed by a variable threshold circuit connected to the subtraction circuit. The variable threshold circuit is for inhibiting the signal in the second path below a variable threshold. The variable threshold is derived as a function of at least one of luminance diagonal transition level, chroma level and averaged luminance activity in the spectrum in the vicinity of the color subcarrier.

9. 发明授权

US4240105A Method and apparatus for separation of chrominance and luminance with adaptive comb filtering in a quadrature modulated color television system 失效
标题翻译：在正交调制彩色电视系统中利用自适应梳状滤波分离色度和亮度的方法和装置
公开(公告)号：US4240105A
公开(公告)日：1980-12-16
申请号：US68215
申请日：1979-08-20
申请人： Yves C. Faroudja
发明人： Yves C. Faroudja
IPC分类号： H04N9/78 , H04N9/535
CPC分类号： H04N9/78
摘要： An improved method and system for separating chrominance and luminance information in a quadrature modulated color television signal and similar periodic signals is disclosed. A comb filter selectively separates chrominance and luminance components from the video signal and provides a combed chrominance output and an adaptively combed luminance output. A low frequency luminance vertical transition detector is connected to an input and detects vertical amplitude transitions occurring at adjacent horizontal scanning lines and produces a first switching signal independent of the direction of a particular transition. A second transition detector detects the simultaneous occurrence of transitions in chrominance and high frequency luminance in either direction above predetermined minimum threshold values to provide a second switching signal. A subcarrier frequency-band reject filter in the luminance path, connected to be responsive to one or both of the first and second switching signals, selects subcarrier frequency band rejected luminance in lieu of combed luminance during an internal corresponding to one or both of the switching signals. The system may further or alternatively include a switch connected to switch to chrominance bandpass filtered video in lieu of combed chrominance during the interval of one or both of the first or second switching signals.
摘要翻译：公开了一种用于分离正交调制彩色电视信号和类似周期信号中的色度和亮度信息的改进方法和系统。梳状滤波器选择性地将色度和亮度分量与视频信号分离，并提供精梳色度输出和自适应精梳亮度输出。低频亮度垂直转变检测器连接到输入端并检测在相邻的水平扫描线处发生的垂直振幅转变，并产生独立于特定转变方向的第一开关信号。第二转换检测器检测在高于预定最小阈值的任一方向上同时出现色度和高频亮度的转变，以提供第二切换信号。连接到响应于第一和第二切换信号中的一个或两个的亮度路径中的副载波频带滤波器，在对应于切换中的一个或两个的内部期间选择代替精梳亮度的副载波频带被拒绝亮度信号。该系统可以进一步或可选地包括在第一或第二开关信号之一或两者的间隔期间连接以切换到色度带通滤波视频以代替梳状色度的开关。

10. 发明授权

US4142211A Bidimensional noise reduction system for television 失效
标题翻译：电视二维降噪系统
公开(公告)号：US4142211A
公开(公告)日：1979-02-27
申请号：US854102
申请日：1977-11-23
申请人： Yves C. Faroudja
发明人： Yves C. Faroudja
IPC分类号： H04N5/21 , H04N9/535
CPC分类号： H04N5/21
摘要： A bidimensional noise reduction system for processing a television video signal includes a vertical dimension noise reduction system having a first adjustable threshold coring circuit and a horizontal noise reduction system having a second adjustable threshold coring circuit.
摘要翻译：用于处理电视视频信号的二维噪声降低系统包括具有第一可调阈值取芯电路的垂直尺寸降噪系统和具有第二可调阈值取芯电路的水平降噪系统。

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