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11. 发明公开

EP0178044A3 Analogue-to-digital converting apparatus for video signals 失效
标题翻译：用于视频信号的模拟数字转换设备
公开(公告)号：EP0178044A3
公开(公告)日：1987-12-02
申请号：EP85305374
申请日：1985-07-29
申请人： VICTOR COMPANY OF JAPAN, LIMITED
发明人： Furuki, Tsuneo , Suzuki, Fujio
IPC分类号： H04N05/14
CPC分类号： H03M1/1295 , H04N5/14
摘要： An analog-to-digital converting apparatus comprises a clamping circuit (32) for clamping a reference level of an input analog video signal supplied thereto, an amplifying circuit (33) for amplifying an output signal of the clamping circuit, an analog-to-digital converting circuit (34) for generating a digital video signal by subjecting an output signal of the amplifying circuit (33) to an analog-to-digital conversion, and a control signal generating circuit (35, 36) for generating at least for the duration of a horizontal synchronizing signal of the input analog video signal a control signal responsive to a difference between the value of the output digital video signal of the analog-to-digital converting circuit (34) and the value of a preset reference signal. The control signal is supplied to one or two out of the clamping circuit (32), the amplifying circuit (33), and the analog-to-digital converting circuit (34) to variably control one or two out of a clamping voltage of the clamping circuit (32), an offset voltage of the amplifying circuit (33), and a first reference voltage of the analog-to-digital converting circuit (34) so that the value of the difference becomes a minimum.
摘要翻译：一种模拟数字转换装置，包括：钳位电路（32），用于钳位提供给其的输入模拟视频信号的参考电平;放大电路（33），用于放大钳位电路的输出信号;模拟 - 数字转换电路（34），用于通过对放大电路（33）的输出信号进行模数转换来产生数字视频信号;以及控制信号发生电路（35,36），用于至少为输入模拟视频信号的水平同步信号的持续时间是响应于模数转换电路（34）的输出数字视频信号的值与预置参考信号的值之间的差的控制信号。控制信号被提供给钳位电路（32），放大电路（33）和模数转换电路（34）中的一个或两个，以可变地控制一个或两个钳位电压钳位电路（32），放大电路（33）的偏移电压以及模拟 - 数字转换电路（34）的第一参考电压，使得差值变得最小。

12. 发明公开

EP0177763A3 Apparatus for detecting a movement in an encoded television picture 失效
标题翻译：用于检测编码电视图中的运动的装置
公开(公告)号：EP0177763A3
公开(公告)日：1987-07-01
申请号：EP85111238
申请日：1985-09-05
申请人： SONY CORPORATION
发明人： Kondo, Tetsujiro
IPC分类号： H04N05/14 , G06F15/70
CPC分类号： H04N5/145 , G06T7/269
摘要： Upon execution of the movement detection by way of a gradient method the leftward and rightward sampling differences AEL and AER at a change extremal value point are used to detect the respective movements in the vertical and horizontal directions. The movement amounts detected are selectively fetched. Upon addition/subtraction of the frame difference, the sign of sample is held until the positive or negative sign of the sample which is obtained from the result of comparison between the sampling difference values before and after the sample is changed. The accurate movement detection is performed by controlling the addition/subtraction in response to the holding signal.
摘要翻译：在通过梯度方法执行移动检测时，使用变化极值点处的向左和向右采样差DELTA EL和DELTA ER来检测垂直和水平方向上的相应运动。有选择地取出检测到的移动量。通过加/减帧差，样本的符号被保持，直到样本的正或负符号从样本变化前后的取样差值的比较结果得到。通过响应于保持信号控制加/减来执行准确的移动检测。

13. 发明公开

EP0057826A3 Method for transmitting television signals on a normalized limited band-width transmission channel and apparatus for carrying out the method 失效
标题翻译：用于在标准化的有限的带宽传输信道上发送电视信号的方法和实现该方法的装置
公开(公告)号：EP0057826A3
公开(公告)日：1984-06-13
申请号：EP82100286
申请日：1982-01-16
申请人： ANT Nachrichtentechnik GmbH
发明人： Broder, Wendland, Prof. Dr.-Ing. , Schröder, Hartmut, Dr.-Ing.
IPC分类号： H04N05/14
CPC分类号： H04N11/006 , H04N7/0132

14. 发明申请

WO1997004588A1 IMPROVED CORRELATION PROCESSING FOR MOTION ESTIMATION 审中-公开
标题翻译：改进运动估计的相关处理
公开(公告)号：WO1997004588A1
公开(公告)日：1997-02-06
申请号：PCT/EP1996003056
申请日：1996-07-09
申请人： INNOVISION PLC , BORER, Timothy, John
发明人： INNOVISION PLC
IPC分类号： H04N05/14
CPC分类号： H04N7/0137 , G06T7/262 , H04N5/145
摘要： Motion correlation is a way of analysing movement in image sequences such as television signals. The estimation of movement in television pictures is essential to enable the use of motion compensated processing techniques. These techniques yield improved quality video processing and moving image compression. Motion correlation would be used as part of a video motion estimation system. This invention describes a number of enhancements to, and a simplfied, efficient implementation of, the basic motion correlation algorithm. It is shown how to produce motion correlation surfaces co-timed with output, rather than input, pictures. It is also shown how to average power spectra to obtain improved noise performance, and hence improved accuracy, in motion correlation. Finally it is shown that separate correlation surfaces can be produced relating to 'future' and 'past' pictures.
摘要翻译：运动相关是分析电视信号等图像序列运动的一种方法。电视图像中运动的估计对于使用运动补偿处理技术至关重要。这些技术产生改进的质量视频处理和运动图像压缩。运动相关将被用作视频运动估计系统的一部分。本发明描述了基本运动相关算法的一些增强和简化的有效实现。显示了如何产生与输出同时进行运动相关曲面，而不是输入图像。还示出了如何平均功率谱以获得改善的噪声性能，并因此提高运动相关性的精度。最后，显示出与“未来”和“过去”图片有关的单独的相关表面。

15. 发明申请

WO1994024812A1 VIDEO SIGNAL PROCESSING 审中-公开
标题翻译：视频信号处理
公开(公告)号：WO1994024812A1
公开(公告)日：1994-10-27
申请号：PCT/GB1994000756
申请日：1994-04-08
申请人： SNELL & WILCOX LIMITED , FLANNAGHAN, Barry , AUTY, Simon , WESTON, Martin
发明人： SNELL & WILCOX LIMITED
IPC分类号： H04N05/14
CPC分类号： H04N5/14 , H04N5/21 , H04N9/64
摘要： The group delay of a noise-reducing median filter for video or a video FIR filter is reduced by transferring filter contributions of fields in "time forward" to fields in "time past" with respect to the output sample point. No significant impairment is introduced by this time asymmetry.
摘要翻译：视频或视频FIR滤波器的降噪中值滤波器的组延迟通过将“时间前进”中的场的滤波器贡献相对于输出采样点传送到“时间过去”中的场来减少。此时不对称引起重大损害。

16. 发明申请

WO1993017520A1 VIDEO IMAGE PROCESSING 审中-公开
标题翻译：视频图像处理
公开(公告)号：WO1993017520A1
公开(公告)日：1993-09-02
申请号：PCT/GB1993000402
申请日：1993-02-26
申请人： BRITISH BROADCASTING CORPORATION , BURL, Michael
发明人： BRITISH BROADCASTING CORPORATION
IPC分类号： H04N05/14
CPC分类号： H04N5/145 , H04N7/0132 , H04N7/014 , H04N19/577 , H04N19/80
摘要： A composite time compensated video picture generated from a plurality of input fields includes discontinuities. These are the results of projections from the input fields which include movement. These are detected and then smoothed with a softening filter.
摘要翻译：从多个输入场产生的复合时间补偿视频图像包括不连续性。这些是包括运动在内的输入字段的投影结果。用软化过滤器检测并平滑。

17. 发明申请

WO1985004542A1 APPARATUS FOR PROCESSING A TELEVISION SIGNAL INCLUDING A MOVEMENT DETECTOR 审中-公开
标题翻译：用于处理包括运动检测器的电视信号的装置
公开(公告)号：WO1985004542A1
公开(公告)日：1985-10-10
申请号：PCT/GB1985000117
申请日：1985-03-26
申请人： INDEPENDENT BROADCASTING AUTHORITY , FLANNAGHAN, Barry, Arthur
发明人： INDEPENDENT BROADCASTING AUTHORITY
IPC分类号： H04N05/14
CPC分类号： H04N5/144 , G06T7/254
摘要： A movement detector is included in television signal processing apparatus in order to improve the performance of the apparatus. The detector evaluates an absolute frame difference signal on a sample by sample basis and, after comparison with a threshold level signal in order to remove the effects of noise is fed to an isolated point removal circuit where samples deemed to indicate movement are compared with surrounding samples and if identified as isolated are ignored. Adaptive control is provided if the threshold, the isolated point removal circuit and a quantizer circuit for non-linearly altering the frame difference signal.
摘要翻译：运动检测器包括在电视信号处理装置中，以便改善装置的性能。检测器以样本为基础评估绝对帧差信号，并且在与阈值电平比较之后，为了消除噪声的影响，馈送到孤立点去除电路，其中被认为表示运动的样本与周围样本进行比较如果被识别为孤立则被忽略。如果阈值，孤立点去除电路和用于非线性改变帧差信号的量化器电路，则提供自适应控制。

18. 发明公开

EP0217628A3 Interpolation filter with motion compensation 失效
标题翻译：插补过滤器与运动补偿
公开(公告)号：EP0217628A3
公开(公告)日：1988-08-03
申请号：EP86307336
申请日：1986-09-24
申请人： RCA LICENSING CORPORATION
发明人： Dischert, Robert Adams , Topper, Robert Joseph
IPC分类号： H04N05/44 , H04N05/14
CPC分类号： H04N7/012
摘要： A video signal interpolation includes a frame interpolation filter (402) which generates from a video input signal (Y) by interpolation from corresponding elements of immediately preceding and following fields, a frame interpolated output signal tending to exhibit motion artefacts. A second filter (430) 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 (440) attenuates the vertical detail component of the frame interpolated signal. An output circuit (461, 450) combines the signals of the three filters to provide a frame interpolated video output signal (Yi) in which the vertical resolution of the video input signal (Yd) is preserved and motion artefacts characteristic of frame interpolation are attenuated. The interpolator of the invention is particularly suitable for providing the required interpolated video signal in progressive scan display systems in which a delayed and time-compressed video signal derived from a video input signal is displayed line-by-line alternatingly with an interpolated video signal obtained by interpolation from the input signal.

19. 发明公开

EP0220946A3 Digital threshold detector with hysteresis 失效
标题翻译：数字阈值检测器与HYSTERESIS
公开(公告)号：EP0220946A3
公开(公告)日：1988-05-11
申请号：EP86308259
申请日：1986-10-23
申请人： RCA CORPORATION
发明人： Casey, Robert Francis
IPC分类号： H04N05/14 , H04N05/213
CPC分类号： H03K3/0377
摘要： As the 8-bit input signal applied to a threshold device (50) reaches a first threshold level, the 1-bit output signal changes from a logical zero to a logical one. The 1-bit output signal is delayed by one system clock period and fed back. The delayed 1-bit output signal is combined (40) (e.g., merged or added) with the 8-bit input signal, and the resulting signal is applied to the threshold device to provide a hysteresis feature. Once the delayed 1-bit output signal becomes a logical one, the input signal has to drop below a second, lower threshold level before the 1-bit output signal can revert back to a logical zero, whereby a margin of noise immunity is provided.

20. 发明公开

EP0219263A3 Video signal blanking interval signal conditioning circuit 无效
标题翻译：视频信号空白间隔信号调节电路
公开(公告)号：EP0219263A3
公开(公告)日：1988-04-27
申请号：EP86307512
申请日：1986-10-01
申请人： RCA CORPORATION
发明人： Hinn, Werner
IPC分类号： H04N05/14 , H04N05/18 , H04N03/24
CPC分类号： H04N5/18 , H04N5/14
摘要： A wideband video signal processing system includes a blanking interval signal conditioning circuit (14) with reduced parasitic capacitance. The circuit comprises an AC coupling capacitor (17) between the input and output of a video signal path, preferably between an input buffer amplifier (15) and an output buffer amplifier (19). A first keyed electronic switch (16) of the single pole, single throw type is coupled in series with the capacitor. A second keyed electronic switch (18) of the single pole, single throw type is coupled between the output of the capacitor and a reference voltage. The first and second switches are keyed to establi sh a fixed video signal reference value during image blanking intervals.

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