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1. 发明授权

US4679084A Method and apparatus for freezing a television picture 失效
标题翻译：冷冻电视图像的方法和装置
公开(公告)号：US4679084A
公开(公告)日：1987-07-07
申请号：US876432
申请日：1986-06-20
申请人： Robert J. Topper , Robert A. Dischert
发明人： Robert J. Topper , Robert A. Dischert
IPC分类号： H04N5/91 , H04N5/44 , H04N5/14
CPC分类号： H04N5/4448
摘要： Method and apparatus for producing a frozen television picture are disclosed. Successive fields of picture information are generated by an interpolator which is responsive to a video input signal. These successive fields are applied to the input of a first field store device. The video input signal is applied to the input of a second field store device so that the successive fields of the video input signal correspond in time to the successive fields generated by the interpolator. Lines from the respective field store devices are sequenced repetitively to form a video signal representing the frozen television picture. The interpolator generates fields which, when displayed with corresponding fields of the video input signal, minimizes motion-induced artifacts without unduly degrading vertical resolution.
摘要翻译：公开了一种用于生产冷冻电视图像的方法和装置。图像信息的连续字段由响应于视频输入信号的内插器产生。这些连续字段被应用于第一字段存储设备的输入。视频输入信号被施加到第二场存储设备的输入，使得视频输入信号的连续场在时间上对应于由内插器产生的连续场。来自各个场存储设备的行重复排序以形成表示冻结电视图像的视频信号。内插器产生当与视频输入信号的相应场一起显示时，使运动引起的伪影最小化而不会不利地降低垂直分辨率的场。

2. 发明授权

US4589019A Digital adder including counter coupled to individual bits of the input 失效
标题翻译：数字加法器包括耦合到输入的各个位的计数器
公开(公告)号：US4589019A
公开(公告)日：1986-05-13
申请号：US487862
申请日：1983-04-22
申请人： Robert A. Dischert , Robert J. Topper
发明人： Robert A. Dischert , Robert J. Topper
IPC分类号： H04N5/16 , H04N5/14 , H04N5/202
CPC分类号： H04N5/165
摘要： An adder circuit is described for producing signals representative of the sum of large numbers of block-synchronized digital signals each of which may have any value within the range of quantizing levels represented. The adder circuit includes one or more binary counters coupled to count bits of the input signal having a particular significance. Counting takes place during an active interval such as a television field interval, and the counters are reset after each counting interval. The counter outputs are latched either before or after processing by addition of other counter outputs. The latched signal represents the sum of the values of the words in one sync block.
摘要翻译：描述了用于产生表示大量块同步数字信号之和的信号的加法器电路，每个数字信号可以在所表示的量化级别的范围内具有任何值。加法器电路包括一个或多个二进制计数器，其耦合到具有特定意义的输入信号的计数位。在有效间隔（如电视场间隔）期间进行计数，并且在每个计数间隔之后重置计数器。计数器输出在处理之前或之后通过添加其他计数器输出而被锁存。锁存信号表示一个同步块中的字的值之和。

3. 发明授权

US4677483A Interpolation filter with motion compensation 失效
标题翻译：具有运动补偿的插补滤波器
公开(公告)号：US4677483A
公开(公告)日：1987-06-30
申请号：US780944
申请日：1985-09-27
申请人： Robert A. Dischert , Robert J. Topper
发明人： Robert A. Dischert , Robert J. Topper
IPC分类号： H04N7/01 , H04N5/14 , H04N5/208 , H04N5/44 , H04N9/68 , H04N7/00
CPC分类号： H04N7/012
摘要： A progressive scan receiver includes a frame interpolation filter for generating added lines for display in a given field from a video input signal by interpolation from corresponding elements of immediately preceding and following fields. A second filter provides a line interpolated signal having picture elements spatially and temporally coincident with corresponding elements of the frame interpolated signal and having a suppressed vertical detail component. A third filter attenuates the vertical detail component of the frame interpolated signal. An output circuit combines the signals of the three filters to provide a frame interpolated video output signal in which the vertical resolution of the video input signal is preserved and motion artifacts characteristic of frame interpolation are attenuated.
摘要翻译：逐行扫描接收机包括帧插值滤波器，用于通过从紧接在前面和之后的场的相应元素进行插值从视频输入信号产生用于在给定场中显示的附加行。第二滤波器提供线间插信号，其具有空间和时间上与帧内插信号的对应元件一致的图像元素，并具有抑制的垂直细节分量。第三个滤波器衰减帧内插信号的垂直细节分量。输出电路组合三个滤波器的信号以提供帧内插视频输出信号，其中视频输入信号的垂直分辨率被保留，并且帧内插的特征的运动伪影被衰减。

4. 发明授权

US4684977A Luminance/chrominance separation circuitry 失效
标题翻译：亮度/色度分离电路
公开(公告)号：US4684977A
公开(公告)日：1987-08-04
申请号：US759832
申请日：1985-07-29
申请人： Robert A. Dischert , Joseph R. Ader , Robert J. Topper
发明人： Robert A. Dischert , Joseph R. Ader , Robert J. Topper
IPC分类号： H04N9/78
CPC分类号： H04N9/78
摘要： A frame comb type composite video decoder which does not require motion adaptive processing circuitry generates low frequency luminance signal components from one field of composite video signal. The high frequency luminance component is derived from two lines of composite video signal from each of two fields disposed before and after the field from which the low frequency luminance signals is developed.
摘要翻译：不需要运动自适应处理电路的帧梳型复合视频解码器从复合视频信号的一个场产生低频亮度信号分量。高频亮度分量是从两行的两个场中得出的，这两行是在低频亮度信号从其开始的场之前和之后设置的。

5. 发明授权

US4673978A Progressive scan processor with plural frequency band interpolation 失效
标题翻译：具有多个频带插值的逐行扫描处理器
公开(公告)号：US4673978A
公开(公告)日：1987-06-16
申请号：US866484
申请日：1986-05-23
申请人： Robert A. Dischert , Robert J. Topper , William M. Shyu
发明人： Robert A. Dischert , Robert J. Topper , William M. Shyu
IPC分类号： H04N7/01 , H04N5/44
CPC分类号： H04N7/012
摘要： A speed-up circuit time compresses and interlaces field delayed and interpolated lines of a video input signal for display in progressive scan fashion. The interpolated lines are produced by adding low and high frequency components derived from the video input signal. The low frequency component is produced by frame-combing and low pass filtering the input signal. The high frequency component is obtained by field delaying, line comb filtering and low pass filtering the input signal. The combined low and high frequency components are spatially and temporally coincident thereby reducing the visibility of motion artifacts (double images) on the display.
摘要翻译：加速电路时间压缩和交织视频输入信号的场延迟和插入行，以逐行扫描的方式显示。通过添加从视频输入信号导出的低频和高频分量来产生内插线。低频分量是通过对输入信号进行帧梳和低通滤波而产生的。高频分量通过场延迟，线梳滤波和低通滤波得到输入信号。组合的低频和高频分量在空间和时间上重合，从而降低显示器上的运动伪像（双重图像）的可视性。

6. 发明授权

US4499494A Television gamma corrector with symmetrical response about black-level 失效
标题翻译：电视伽马校正器对黑色对称响应
公开(公告)号：US4499494A
公开(公告)日：1985-02-12
申请号：US424233
申请日：1982-09-27
申请人： Robert A. Dischert , Robert J. Topper
发明人： Robert A. Dischert , Robert J. Topper
IPC分类号： H04N5/20 , H04N5/202 , H04N9/69 , H04N9/73 , H04N9/07
CPC分类号： H04N5/202 , H04N9/69
摘要： A television camera or other source of color-representative signals such as R, G and B includes a matrix to which the R, G and B signals are applied to form luminance (Y) and color-difference (I,Q) signals. The source and matrix are coupled together by way of a signal path having a particular response or transfer function for the R, G and B signals over their normal range. Unavoidable noise occurring in the signals near black level may perturb the color-representative signals, and causes color errors. The errors are reduced by arranging the coupling to have a response to negative noise peaks into the blacker-than-black region. The response outside this normal range is complementary to the response within the normal range. In a particular embodiment the coupling includes a gamma corrector which has complementary response in the blacker-than-black region.
摘要翻译：电视摄像机或诸如R，G和B的其他颜色代表信号源包括将R，G和B信号施加到其上以形成亮度（Y）和色差（I，Q）信号的矩阵。源和矩阵通过对于R，G和B信号在其正常范围具有特定响应或传递函数的信号路径耦合在一起。在黑电平附近的信号中发生的不可避免的噪声可能会扰乱色彩代表信号，并导致颜色误差。通过将耦合布置成对黑色或黑色区域的负噪声峰值具有响应来减小误差。在正常范围之外的响应与正常范围内的响应互补。在特定实施例中，耦合包括伽马校正器，其在黑黑区域中具有补偿响应。

7. 发明授权

US5227883A Method and apparatus for motion aperture correction 失效
标题翻译：用于运动孔径校正的方法和装置
公开(公告)号：US5227883A
公开(公告)日：1993-07-13
申请号：US753601
申请日：1991-08-30
申请人： Lee R. Dischert , Robert J. Topper
发明人： Lee R. Dischert , Robert J. Topper
IPC分类号： H04N5/208 , H04N5/228
CPC分类号： H04N5/208
摘要： A method and apparatus for deriving a motion aperture signal that is added to a video signal to cause amplification of the high frequencies of the video signal during movement is disclosed. This method and apparatus operates with an interlaced scan television system by line interpolation of the fields adjacent to a present field of interest. One suggested interpolation means uses delay lines working in conjunction with a summer to vertically align adjacent fields with the field of interest. In order to match the amplitude response of the interpolation means operating on the adjacent fields and the amplitude response of the present field of interest, a filter is disclosed having the same delay line components as the interpolation means.

8. 发明授权

US5298981A Color signal aperture correction system having automatically selected source signal 失效
标题翻译：彩色信号孔径校正系统具有自动选择的源信号
公开(公告)号：US5298981A
公开(公告)日：1994-03-29
申请号：US964707
申请日：1992-10-22
申请人： Robert J. Topper , Lee R. Dischert
发明人： Robert J. Topper , Lee R. Dischert
IPC分类号： H04N9/68 , H04N9/64 , H04N5/14 , H04N5/208
CPC分类号： H04N9/646
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.
摘要翻译：彩色摄像机包括产生施加到每个彩色信号的峰值信号以增强视频信号相对于低频分量的高频分量的电路。当绿色和红色信号的幅度近似相等时，电路会在绿色视频信号中添加高频分量作为峰值信号。然而，如果红色和绿色视频信号的幅度之间存在显着的差异，则这两个信号的高频分量的组合被用作峰值信号。在本发明的一个示例性实施例中，峰化信号包括带内水平和垂直轮廓信号和带外孔径校正信号。

9. 发明授权

US06473460B1 Method and apparatus for calculating motion vectors 有权
标题翻译：用于计算运动矢量的方法和装置
公开(公告)号：US06473460B1
公开(公告)日：2002-10-29
申请号：US09540934
申请日：2000-03-31
申请人： Robert J. Topper
发明人： Robert J. Topper
IPC分类号： H04B166
CPC分类号： H04N5/145 , H04N7/012
摘要： A motion estimation system for finding motion vectors between first and second images selects first and second overlapping blocks of pixels from the first image. The motion estimation system then estimates motion between the first and second images to define respective motion vectors for the overlapping blocks. These motion vectors are assigned to respective first and second non-overlapping sub-blocks of pixels within the respective first and second overlapping blocks of pixels. The motion estimation system is advantageously used in a video de-interlacing system in which the sub-blocks are used to determine whether interpolated samples are generated using samples from both the first and second image fields or only from the first field.
摘要翻译：用于在第一和第二图像之间寻找运动矢量的运动估计系统从第一图像中选择第一和第二重叠像素块。运动估计系统然后估计第一和第二图像之间的运动，以定义重叠块的相应运动矢量。这些运动矢量被分配给相应的第一和第二重叠像素块内的相应的第一和第二非重叠子像素块。运动估计系统有利地用于视频去隔行系统，其中使用子块来确定是否使用来自第一和第二图像场的采样或仅从第一场产生内插样本。

10. 发明授权

US5255093A Apparatus and a method for limiting gain in a digital gamma corrector 失效
标题翻译：用于限制数字伽马校正器中的增益的装置和方法
公开(公告)号：US5255093A
公开(公告)日：1993-10-19
申请号：US901372
申请日：1992-06-19
申请人： Robert J. Topper , Lee R. Dischert
发明人： Robert J. Topper , Lee R. Dischert
IPC分类号： H04N5/16 , H04N5/202
CPC分类号： H04N5/202 , H04N5/16
摘要： A method and apparatus for reducing the maximum gain applied to a video signal during gamma correction are disclosed. A gamma exponent value, a black level, white level, and a desired maximum gain value are selected. A count of possible input signal values is determined. A modified black level is set equal to the desired black level. A gain limit value for the gamma correcting transfer function is calculated, and the smallest input signal for which the applied gain is less than or equal to the gain limit is determined. A black level correction factor is calculated. The modified black level is increased by the black level correction factor, and a determination is made whether the black level correction factor has decreased to less than a predetermined threshold value. The gamma correction function is recalculated and further black level corrections are added until the correction threshold is reached. The final transfer function increases linearly and has a gain equal to the gain limit value for video signal values near the desired black level. The gamma function increases non-linearly at a decreasing rate near the white level.

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