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1. 发明授权

US4684989A Signal background noise detector 失效
标题翻译：信号背景噪声检测器
公开(公告)号：US4684989A
公开(公告)日：1987-08-04
申请号：US826998
申请日：1986-02-07
申请人： Barbara J. Roeder , Leopold A. Harwood , Hermann J. Weckenbrock
发明人： Barbara J. Roeder , Leopold A. Harwood , Hermann J. Weckenbrock
IPC分类号： H04N17/04 , H04N5/21 , H04N5/217 , G06G7/12
CPC分类号： H04N5/21
摘要： Apparatus for estimating noise in an electrical signal having substantially redundant recurring intervals includes circuitry for producing difference samples corresponding to signal differences between the recurring redundant intervals. A number of difference samples are averaged, and ones of the difference samples contributing to each average are subtracted from the averages. Magnitude values are extracted from the differences between the averages and the difference samples. A predetermined number of the magnitude values are averaged to produce a noise estimate signal.
摘要翻译：用于估计具有基本上冗余的重复间隔的电信号中的噪声的装置包括用于产生对应于循环冗余间隔之间的信号差的差分样本的电路。将多个差分样本进行平均，并从平均值中减去贡献于每个平均值的差分样本中的一个。从平均值和差分样本之间的差异中提取幅度值。将预定数量的幅度值平均以产生噪声估计信号。

2. 发明授权

US4661853A Interfield image motion detector for video signals 失效
标题翻译：用于视频信号的场间图像运动检测器
公开(公告)号：US4661853A
公开(公告)日：1987-04-28
申请号：US794222
申请日：1985-11-01
申请人： Barbara J. Roeder , Leopold A. Harwood , Hermann J. Weckenbrock
发明人： Barbara J. Roeder , Leopold A. Harwood , Hermann J. Weckenbrock
IPC分类号： H04N7/32 , H04N5/14 , H04N5/21 , H04N9/77 , H04N9/78 , H04N11/04 , H04N7/18 , H04N5/213
CPC分类号： H04N5/21 , H04N5/144
摘要： A motion detector for determining image motion in a video signal develops an array of signals representing the difference between pixels from adjacent frames. The array of signals are grouped into subarrays, each of which include the signal corresponding to the pixel under examination for motion. Each of the subarrays are independently examined to determine if the magnitude of all of the pixel differences represented in a particular subarray exceed a predetermined threshold and/or the pixel differences have like polarity. If these conditions are met in any one of the subarrays, a motion signal is produced.
摘要翻译：用于确定视频信号中的图像运动的运动检测器产生表示来自相邻帧的像素之间的差异的信号阵列。信号阵列被分组成子阵列，每个子阵列包括对应于正在检查的运动像素的信号。独立地检查每个子阵列以确定在特定子阵列中表示的所有像素差异的大小是否超过预定阈值和/或像素差异具有相似的极性。如果在任何一个子阵列中满足这些条件，则产生运动信号。

3. 发明授权

US4651211A Video signal motion detecting apparatus 失效
标题翻译：视频信号运动检测装置
公开(公告)号：US4651211A
公开(公告)日：1987-03-17
申请号：US819861
申请日：1986-01-17
申请人： Hermann J. Weckenbrock , Barbara J. Roeder , Robert F. Casey , Leopold A. Harwood , Werner F. Wedam
发明人： Hermann J. Weckenbrock , Barbara J. Roeder , Robert F. Casey , Leopold A. Harwood , Werner F. Wedam
IPC分类号： H04N9/78 , H04N5/14 , H04N5/21 , H04N7/32 , H04N9/77 , H04N11/04 , H04N11/20
CPC分类号： H04N5/144
摘要： A motion detector for detecting interimage motion represented by composite video signals analyzes both the chrominance and luminance components for image motion. Interimage motion represented by the luminance component is determined from interimage signal differences. The interimage signal differences are separated into high and low frequency spectra corresponding to fine and coarse luminance image detail. Selected signal differences from the low frequency spectrum are summed and threshold detected to determine motion in the coarse image detail. The high frequency spectrum of the sample differences are applied to parallel summing circuits which sum different combinations of sample differences in order to discriminate motion signals from non-moving chrominance transitions. The detection signals from the high and low frequency motion detectors are combined to produce a luminance motion signal. Interimage motion represented by the chrominance component is detected by combining selected ones of interimage signal sums. The interimage signal sums are high pass filtered and applied to parallel combining elements which discriminate chrominance motion from vertical luminance transitions.

4. 发明授权

US5500739A Frequency-multiplexing FM luma signal with color and 2nd under signals having overlapping frequency spectra 失效
标题翻译：频率复用具有颜色的FM亮度信号和具有重叠频谱的信号
公开(公告)号：US5500739A
公开(公告)日：1996-03-19
申请号：US59765
申请日：1993-05-11
申请人： Christopher H. Strolle , Chandrakant B. Patel , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung-Wan Ko , Jong-Kwung Yun , Allen L. Limberg
发明人： Christopher H. Strolle , Chandrakant B. Patel , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung-Wan Ko , Jong-Kwung Yun , Allen L. Limberg
IPC分类号： H04N9/80 , H04N9/82 , H04N9/835 , H04N9/79
CPC分类号： H04N9/835 , H04N9/80 , H04N9/8205
摘要： A frequency-multiplexed video signal is generated in which a color-under signal and a second under signal are linearly combined with at least partially overlapping frequency spectra to form a composite under signal for an FM luma signal. The frequency-multiplexed video signal is suited for recording on magnetic tape using helical scanning methods and for being played back from the magnetic tape using helical scanning methods. The second under signal is generated in such way that line-comb filtering can be used during playback to separate color-under signal and second under signal each from the composite signal despite their frequency spectra being at least partially overlapping in the composite signal.
摘要翻译：产生频率复用的视频信号，其中彩色信号和第二下信号与至少部分重叠的频谱线性组合以形成用于FM亮度信号的复合信号。频率复用视频信号适用于使用螺旋扫描方法在磁带上进行记录，并且使用螺旋扫描方法从磁带重放。第二下信号被生成为使得在重放期间可以使用线梳滤波来分离彩色信号和第二下信号，每个来自复合信号，尽管它们的频谱在复合信号中至少部分重叠。

5. 发明授权

US4672445A Progressive scan processor employing interpolation in luminance channel controlled by a motion signal and a vertical detail representative signal 失效
标题翻译：逐行扫描处理器采用由运动信号和垂直细节代表信号控制的亮度通道中的内插
公开(公告)号：US4672445A
公开(公告)日：1987-06-09
申请号：US738974
申请日：1985-05-29
申请人： Robert F. Casey , Hermann J. Weckenbrock
发明人： Robert F. Casey , Hermann J. Weckenbrock
IPC分类号： H04N7/01 , H04N5/14 , H04N5/44 , H04N11/20
CPC分类号： H04N7/012 , H04N5/144
摘要： A frame comb filter separates a luminance signal from a composite video input signal for display on every other line of a progressively scanned display. The filter includes a tap for providing a field delayed luma signal and an interpolator for providing a frame comb filtered and interpolated luma signal. A selector switch selects the field delayed luma signal for display on the intermediate lines of the display when the vertical detail content of the input signal is greater than a minimum threshold value and there is little or no interframe motion and selects the frame comb filtered and interpolated luminance signal for display otherwise thereby providing enhanced vertical detail and reduced field motion artifacts for displayed images.
摘要翻译：帧梳状滤波器将亮度信号与复合视频输入信号分离，以便在逐行扫描的显示器的每隔一行上显示。滤波器包括用于提供场延迟亮度信号的抽头和用于提供帧梳状滤波和内插亮度信号的内插器。当输入信号的垂直细节内容大于最小阈值时，选择器开关选择场延迟亮度信号显示在显示器的中间线上，并且帧间运动很少或没有，并且选择经过滤波和内插的帧梳状亮度信号用于显示，由此为显示的图像提供增强的垂直细节和减少的场运动伪像。

6. 发明授权

US06246827B1 Deemphasis and subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal 失效
标题翻译：折叠视频信号的高能量反向分量的强调和随后的重新加权
公开(公告)号：US06246827B1
公开(公告)日：2001-06-12
申请号：US08087362
申请日：1993-07-08
申请人： Christopher H. Strolle , Allen LeRoy Limberg , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung Wan Ko , Jong Kyung Yun
发明人： Christopher H. Strolle , Allen LeRoy Limberg , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung Wan Ko , Jong Kyung Yun
IPC分类号： H04N979
CPC分类号： H04N5/923 , H04N9/7976 , H04N9/80 , H04N9/8205 , H04N9/835 , H04N9/898
摘要： A system for reproducing a luminance signal from a medium containing a previously recorded luminance signal with a high-frequency portion thereof compressed in dynamic range includes a circuit for recovering that luminance signal from the medium. Filtering is done to separate the low-frequency and compressed-in-dynamic-range high-frequency portions of the recovered luminance signal from each other. A corer responds to the separated compressed-in-dynamic-range high-frequency portion of the recovered luminance signal to provide a cored high-frequency portion with expanded dynamic range and reduced noise. The level of the cored high-frequency portion with expanded dynamic range and reduced noise is then boosted by a predetermined amount to compensate for energy losses during the compression of the dynamic range and added back to the low-frequency portion of the recovered luminance signal to reproduce a full-band luminance signal with at least partially restored dynamic range for high-frequencies and without readily visible high-frequency noise.
摘要翻译：一种用于从包含先前记录的亮度信号的介质再现亮度信号的系统，其中其高频部分在动态范围内被压缩，包括用于从介质中恢复该亮度信号的电路。完成滤波以将恢复的亮度信号的低频和压缩在动态范围的高频部分彼此分离。核心部分对恢复的亮度信号的分离压缩在动态范围高频部分进行响应，以提供具有扩展的动态范围和降低的噪声的核心高频部分。然后将具有扩大的动态范围和降低的噪声的核心高频部分的电平提升预定量，以补偿在动态范围的压缩期间的能量损失，并将其恢复到恢复的亮度信号的低频部分，再现具有用于高频的至少部分恢复的动态范围的全频带亮度信号，并且没有容易看到的高频噪声。

7. 发明授权

US5673355A Deemphasis & Subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal 失效
标题翻译：对重叠视频信号的高能量反向分量进行去加重和随后的重新加权
公开(公告)号：US5673355A
公开(公告)日：1997-09-30
申请号：US484707
申请日：1995-06-07
申请人： Christopher H. Strolle , Allen LeRoy Limberg , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung Wan Ko , Jong Kyung Yun
发明人： Christopher H. Strolle , Allen LeRoy Limberg , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung Wan Ko , Jong Kyung Yun
IPC分类号： H04N5/923 , H04N9/797 , H04N9/80 , H04N9/82 , H04N9/835 , H04N9/898 , H04N9/79
CPC分类号： H04N9/8205 , H04N5/923 , H04N9/7976 , H04N9/80 , H04N9/835 , H04N9/898
摘要： A system for reproducing a luminance signal from a medium containing a previously recorded luminance signal with a high-frequency portion thereof compressed in dynamic range includes a circuit for recovering that luminance signal from the medium. Filtering is done to separate the low-frequency and compressed-in-dynamic-range high-frequency portions of the recovered luminance signal from each other. A corer responds to the separated compressed-in-dynamic-range high-frequency portion of the recovered luminance signal to provide a cored high-frequency portion with expanded dynamic range and reduced noise. The level of the cored high-frequency portion with expanded dynamic range and reduced noise is then boosted by a predetermined amount to compensate for energy losses during the compression of the dynamic range and added back to the low-frequency portion of the recovered luminance signal to reproduce a full-band luminance signal with at least partially restored dynamic range for high-frequencies and without readily visible high-frequency noise.
摘要翻译：一种用于从包含先前记录的亮度信号的介质再现亮度信号的系统，其中其高频部分在动态范围内被压缩，包括用于从介质中恢复该亮度信号的电路。完成滤波以将恢复的亮度信号的低频和压缩在动态范围的高频部分彼此分离。核心部分对恢复的亮度信号的分离压缩在动态范围高频部分进行响应，以提供具有扩展的动态范围和降低的噪声的核心高频部分。然后将具有扩大的动态范围和降低的噪声的核心高频部分的电平提升预定量，以补偿在动态范围的压缩期间的能量损失，并将其恢复到恢复的亮度信号的低频部分，再现具有用于高频的至少部分恢复的动态范围的全频带亮度信号，并且没有容易看到的高频噪声。

8. 发明授权

US4868650A Circuitry for expanding the effect of a video control signal in multiple dimensions 失效
标题翻译：用于扩展视频控制信号在多个维度上的效果的电路
公开(公告)号：US4868650A
公开(公告)日：1989-09-19
申请号：US164766
申请日：1988-03-07
申请人： Hermann J. Weckenbrock
发明人： Hermann J. Weckenbrock
IPC分类号： H04N11/20 , H03H21/00 , H04B3/04 , H04N5/21 , H04N9/64 , H04N9/78 , H04N11/04
CPC分类号： H04N9/646 , H04N5/21
摘要： A control signal spreader for ameliorating undesirable effects of abrupt changes in a control signal in a video signal processor gradually changes the magnitude of the control signal in the horizontal, vertical and temporal dimensions of the video signal. The control signal is applied to a first circuit, which, responsive to positive transitions of the control signal, generates a gradually increasing signal and provides the lesser valued one of the control signal and the generated signal. A delayed version of the control signal is applied to a second circuit, which, responsive to negative transitions of the control signal, generates a gradually decaying signal and provides the greater valued one of the control signal and the generated decaying signal. The first and second circuits are coupled to a third circuit which provides as an output control signal, the greater valued signal provided by the first and second circuits.
摘要翻译：用于改善视频信号处理器中的控制信号的突然变化的不期望的影响的控制信号扩展器逐渐改变视频信号的水平，垂直和时间维度中的控制信号的大小。控制信号被施加到第一电路，其响应于控制信号的正跳变产生逐渐增加的信号并提供控制信号和产生的信号中较小值的一个。控制信号的延迟版本被施加到第二电路，第二电路响应于控制信号的负变化，产生逐渐衰减的信号，并提供控制信号和产生的衰减信号中较大值的一个。第一和第二电路耦合到提供作为输出控制信号的由第一和第二电路提供的较大值信号的第三电路。

9. 发明授权

US4617589A Adaptive frame comb filter system 失效
标题翻译：自适应帧梳状滤波系统
公开(公告)号：US4617589A
公开(公告)日：1986-10-14
申请号：US682765
申请日：1984-12-17
申请人： Hermann J. Weckenbrock
发明人： Hermann J. Weckenbrock
IPC分类号： H04N9/78 , H04N9/64
CPC分类号： H04N9/78
摘要： A frame comb filter system having circuitry to minimize motion-induced artifacts in the reproduced image includes a line comb filter to extract a relatively high frequency luminance correction signal from frame comb filtered chrominance signal. This luminance correction signal, however, includes undesirable signal components due to vertical chrominance transitions even in the absence of motion. The system therefore includes circuitry to selectively recombine the high frequency luminance correction signal with frame comb filtered luminance signal only when motion occurs.
摘要翻译：具有用于最小化再现图像中的运动引起的伪影的电路的帧梳状滤波器系统包括线梳状滤波器，用于从帧梳状滤波色度信号中提取相对较高频率的亮度校正信号。然而，即使在没有运动的情况下，该亮度校正信号也包括由于垂直色度转换引起的不期望的信号分量。因此，该系统包括仅在运动发生时选择性地将高频亮度校正信号与帧梳状滤波的亮度信号重新组合的电路。

10. 发明授权

US5576837A Digital modulators for use with sub-nyquist sampling of raster-scanned samples of image intensity 失效
公开(公告)号：US5576837A
公开(公告)日：1996-11-19
申请号：US296796
申请日：1994-08-26
申请人： Christopher H. Strolle , Hermann J. Weckenbrock
发明人： Christopher H. Strolle , Hermann J. Weckenbrock
IPC分类号： H04N5/93 , H04L27/00 , H04N5/76 , H04N5/92 , H04N7/12 , H04N9/78 , H04N9/797 , H04N9/80 , H04N9/82 , H04N9/83 , H04N9/835 , H04N9/84 , H04N9/898 , H04N9/79 , H04N11/02 , H04N11/04
CPC分类号： H04N9/7976 , H04N9/797 , H04N9/80 , H04N9/8205 , H04N9/831 , H04N9/835 , H04N9/84 , H04N9/898
摘要： Apparatus useful in electronics for the tape recording of a video signal, which is a baseband signal of a prescribed bandwidth extending up to a prescribed maximum frequency, processes the video signal to generate a folded-spectrum video signal. The video signal is digitized and supplied to a digital band-splitting filter with a cross-over frequency at one-half said prescribed maximum frequency, for separating the digitized video signal into samples of a lower-frequency-band component and into samples of a higher-frequency-band component. A balanced modulator is connected for modulating a folding carrier wave of the prescribed maximum frequency, which modulation is done in accordance with the higher-frequency-band component to generate a balanced modulation signal; and the balanced modulation signal is linearly combined with the lower-frequency-band component to generate the folded-spectrum video signal. Preferably, the sampling rate of the digitized video signal is exactly the Nyquist rate of the prescribed maximum frequency, reduces the balanced modulation of a suitably phased folding carrier wave to multiplication of successive samples of the modulating signal alternately by plus one and by minus one. Such multiplications are done without having to use a digital multiplier.

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