-
1.发明授权Video/film-mode (3:2 pulldown) detector using patterns of two-field differences 失效视频/电影模式（3：2下拉）检测器使用两场差异的模式
公开(公告)号：US5317398A
公开(公告)日：1994-05-31
申请号：US930257
申请日：1992-08-17
申请人： Scott D. Casavant , Robert N. Hurst, Jr. , Stuart S. Perlman , Michael A. Isnardi , Felix Aschwanden
发明人： Scott D. Casavant , Robert N. Hurst, Jr. , Stuart S. Perlman , Michael A. Isnardi , Felix Aschwanden
CPC分类号： H04N7/0115 , H04N19/587 , H04N19/80 , H04N5/14 , H04N5/915
摘要： A film/video detector includes circuitry for generating the differences between corresponding pixel values in successive frames of video signal. These differences are accumulated over respective frame intervals. Accumulated values for respective frames are applied to a signal averager and to a correlation circuit. Average values from the averager are subtracted from correlation values from the correlation circuit, and film mode signal is indicated if the latter differences are greater than a predetermined value.
摘要翻译： 电影/视频检测器包括用于在连续的视频信号帧中产生相应像素值之间的差异的电路。 这些差异在各个帧间隔内累积。 各个帧的累积值被施加到信号平均器和相关电路。 来自平均器的平均值从相关电路的相关值中减去，如果后一个差异大于预定值，则指示胶片模式信号。
-
公开(公告)号：US4910585A
公开(公告)日：1990-03-20
申请号：US215123
申请日：1988-06-29
CPC分类号： H04N11/008
摘要： A widescreen television signal containing center panel information and time compressed side panel information in an overscan region is intraframe processed above a given frequency only with respect to the center panel information. The intraframe processing apparatus includes a signal delay network with first and second 262H delay elements coupled between an input and an output of the delay network. During a first field interval, signals from the delay input and from an intermediate point between the delay elements are subtractively combined to produce a difference term which is coupled to a signal path. During a second field interval, signals from the delay output and from the intermediate point are subtractively combined to produce a difference term which is coupled to the signal path. An intraframe processed output signal is produced by combining the difference terms from the signal path with a signal from the intermediate delay point. A filter and an electronic gate in the signal path determine frequency selective intraframe processing of the center panel information alone.
摘要翻译： 包含中央面板信息和过扫描区域中的时间压缩侧面板信息的宽屏幕电视信号仅在相对于中心面板信息的给定频率上进行帧内处理。 帧内处理装置包括信号延迟网络，其中第一和第二262H延迟元件耦合在延迟网络的输入和输出之间。 在第一场间隔期间，来自延迟输入的信号和来自延迟元件之间的中间点的信号被减法地组合以产生耦合到信号路径的差分项。 在第二场间隔期间，来自延迟输出和来自中间点的信号被减法地组合以产生耦合到信号路径的差分项。 通过将来自信号路径的差分项与来自中间延迟点的信号组合来产生帧内处理的输出信号。 信号路径中的滤波器和电子门仅决定中心面板信息的频率选择性帧内处理。
-
公开(公告)号：US4884127A
公开(公告)日：1989-11-28
申请号：US139338
申请日：1987-12-29
CPC分类号： G06T9/004 , H04N11/008
摘要： An NTSC compatible, single channel widescreen EDTV system encodes and decodes a television signal comprising (1) a main, standard format NTSC signal with auxiliary low frequency side panel image information compressed into an overscan region thereof; (2) auxiliary high frequency side panel image information; and (3) auxiliary high frequency horizontal luminance information. At an encoder, components 2 and 3 are intraframe averaged before modulating an alternate subcarrier. Component 1 is intraframe averaged above a given frequency before being combined with the modulated alternate subcarrier.
摘要翻译： NTSC兼容的单通道宽屏EDTV系统对电视信号进行编码和解码，该电视信号包括（1）主，标准格式NTSC信号，其中辅助低频侧面板图像信息被压缩到其过扫描区域; （2）辅助高频侧面图像信息; 和（3）辅助高频水平亮度信息。 在编码器处，组件2和3在调制替代副载波之前进行帧内平均。 在与调制的替代副载波组合之前，组件1在给定频率之上被帧内平均化。
-
4.发明授权Space-saving cathode ray tube employing a non-self-converging deflection yoke 失效采用非自会聚偏转线圈的节省空间的阴极射线管公开(公告)号：US06870331B2
公开(公告)日：2005-03-22
申请号：US09858818
申请日：2001-05-16
CPC分类号： H01J29/70 , H01J2229/582 , H01J2229/587
摘要： In a cathode ray tube, plural electron beams are directed towards a faceplate biased at screen potential and are magnetically scanned by a non-self-converging deflection yoke across the faceplate to impinge upon phosphors thereon to produce light depicting an image. The plural electron beams are substantially converged near two opposing edges of the faceplate. A processor changes the raster of the image from a first raster corresponding to position of the image to a second raster corresponding to the position of the plural electron beams on the faceplate. One or more electrodes between the tube neck and the faceplate are biased above and/or below screen potential to deflect electrons landing near the periphery of the faceplate.
摘要翻译： 在阴极射线管中，多个电子束指向偏置于屏幕电位的面板，并且通过非自聚焦偏转系统磁屏蔽地扫过面板以撞击其上的磷光体，以产生描绘图像的光。 多个电子束在面板的两个相对的边缘附近基本会聚。 处理器将来自与图像位置对应的第一光栅的图像的光栅改变为对应于面板上的多个电子束的位置的第二光栅。 管颈和面板之间的一个或多个电极被偏置在屏幕电势上方和/或下方，以偏转靠近面板周边的电子。
-
5.发明授权公开(公告)号：US06563936B2
公开(公告)日：2003-05-13
申请号：US09803392
申请日：2001-03-09
IPC分类号： H04K100
CPC分类号： G06T1/0071 , G06T1/0085 , G06T2201/0081 , G06T2201/0083 , H04N19/186 , H04N19/467 , H04N19/577 , H04N21/23892 , H04N21/8358
摘要： A channel is inserted into a sequence of frames for an image, by varying one or more display characteristics across a display in accordance with a spatio-temporal pattern applied to, for example, successive lines of each modified frame. The channel may be employed to watermark the image, and the watermark may be defined as W(x) and its complement [1−W(x)] in counter-phase rotations of successive lines in pairs of frames. The watermark information is applied in relatively still portions of the image with sufficient lightness level. A receiver includes a watermark detector that has a priori information about the watermark. The watermark detector examines specific regions of the displayed image over time, and tests the regions for the watermark during time intervals when the image remains relatively still.
摘要翻译： 通过根据应用于例如每个修改的帧的连续行的时空模式，跨越显示器改变一个或多个显示特性，将通道插入到用于图像的帧序列中。 可以使用信道对图像进行水印，并且在成对的帧中的相继行的相位旋转中，水印可被定义为W（x）及其补码[1-W（x）]。 水印信息以足够的亮度水平施加在图像的相对静止部分中。 接收机包括具有关于水印的先验信息的水印检测器。 水印检测器随时间检查显示图像的特定区域，并且在图像保持相对静止的时间间隔期间测试水印的区域。
-
6.发明授权
公开(公告)号：US5083196A
公开(公告)日：1992-01-21
申请号：US520938
申请日：1990-05-09
CPC分类号： H04N11/008
摘要： In a widescreen signal encoding system for a television-type signal, side panel chrominance information is not subjected to time compression in an overscan region such as a horizontal overscan region containing time compressed low frequency side panel luminance information. Both low and high frequency side panel chrominance information, and high frequency side panel luminance information, modulate an auxiliary subcarrier.
摘要翻译： 在用于电视型信号的宽屏信号编码系统中，在诸如包含时间压缩的低频侧面板亮度信息的水平过扫描区域的过扫描区域中，不对侧面板色度信息进行时间压缩。 低频侧面板色度信息和高频侧面板亮度信息均调制辅助副载波。
-
7.发明授权Apparatus for processing high frequency edge information in a widescreen television system 失效用于在宽屏电视系统中处理高频边缘信息的装置
公开(公告)号：US4782383A
公开(公告)日：1988-11-01
申请号：US89637
申请日：1987-08-26
申请人： Michael A. Isnardi
发明人： Michael A. Isnardi
CPC分类号： H04N11/008
摘要： In a system for encoding a widescreen video signal containing left side, right side and center panel image components and luminance (Y) and chrominance (I,Q) information, first and second encoded signals containing side panel high frequency components ("highs") are generated simultaneously for each horizontal image line. Left and right chrominance side panel highs I.sub.L, I.sub.R and Q.sub.L, Q.sub.R remain in their respective horizontal spatial positions in the first and second signals. Left and right luminance side panel highs Y.sub.L, Y.sub.R are time expanded and spatially shifted to fill the gap between the chrominance highs in the first and second signals. Thus the first signal contains the side panel highs in the sequence I.sub.L,Y.sub.L,I.sub.R, and the second signal contains the side panel highs in the pattern Q.sub.L,Y.sub.R,Q.sub.R.
摘要翻译： 在用于对包含左侧，右侧和中央面板图像分量以及亮度（Y）和色度（I，Q）信息的宽屏幕视频信号进行编码的系统中，包含侧面板高频分量（“高”）的第一和第二编码信号， 对于每个水平图像线同时生成。 左和右色度侧面板高IL，IR和QL，QR在第一和第二信号中保持在它们各自的水平空间位置。 左和右亮度侧面板高位YL，YR被时间扩展并且在空间上移位以填充第一和第二信号中的色度高位之间的间隙。 因此，第一信号包含序列IL，YL，IR中的侧面板高，并且第二信号包含图案QL，YR，QR中的侧面板高。
-
公开(公告)号：US5032907A
公开(公告)日：1991-07-16
申请号：US535217
申请日：1990-06-08
申请人： Michael A. Isnardi
发明人： Michael A. Isnardi
CPC分类号： H04N7/015 , H04N11/008 , H04N7/007
摘要： A widescreen television system compatible with a lesser aspect ratio standard television system employs a panning operation using a circular-shift method to keep a 4.times.3 aspect ratio panning window (area of primary interest) centered for display purposes. Illustratively, when the panning window is shifted left by a given amount at the widescreen signal source, a corresponding portion of right sidepanel image information is "cut" and "pasted" alongside left sidepanel image information so that the panning window remains substantially centered with respect to side panel information. A reverse cut-and-paste operation is performed at a widescreen receiver to restore the original widescreen spatial format. A standard 4.times.3 aspect ratio receiver processes and displays the centered panning window information normally, unaffected by the panning operation at the widescreen signal source.
摘要翻译： 与较小宽高比标准电视系统兼容的宽屏电视系统采用循环移位方法进行平移操作，以保持4×3宽高比平移窗口（主要感兴趣的区域）为显示目的。 说明性地，当平移窗口在宽屏幕信号源处向左移动给定量时，右侧面图像信息的对应部分与左侧面图像信息一起被“剪切”和“粘贴”，使得平移窗口基本上保持相对中心 到侧面板信息。 在宽屏接收机上执行反向剪切和粘贴操作，以恢复原始宽屏幕空间格式。 标准的4x3宽高比接收机处理并显示中心的平移窗口信息，不受宽屏信号源的平移操作的影响。
-
公开(公告)号：US4979020A
公开(公告)日：1990-12-18
申请号：US139337
申请日：1987-12-29
申请人： Michael A. Isnardi
发明人： Michael A. Isnardi
CPC分类号： G06T9/004 , H04N11/008
摘要： A system for encoding a progressive scan widescreen EDTV signal so as to be compatible with a standard NTSC receiver develops an auxiliary signal containing vertical-temporal information derived from image frame difference information of the progressive scan signal. The auxiliary signal facilitates the conversion of the encoded NTSC compatible signal to pro-scan format in a widescreen progressive scan receiver.
-
10.发明授权Apparatus for combining and separating constituent components of a video signal 失效用于组合和分离视频信号的组成部分的装置
公开(公告)号：US4949166A
公开(公告)日：1990-08-14
申请号：US253273
申请日：1988-10-03
申请人： Michael A. Isnardi
发明人： Michael A. Isnardi
CPC分类号： H04N9/78 , H04N11/002
摘要： The luminance component of a video signal is processed to produce a luminance component with groups of mutually exclusive spatially correlated image pixels of identical value within each group. In one embodiment each group comprises vertically averaged pixels 1H apart within a field. In another embodiment each group comprises vertically averaged pixels apart within a frame. The chrominance component is similarly processed. The processed luminance and chrominance components are combined using an invertible algorithm involving additive and subtractive signal combination. At a decoder, the inverse of the combining algorithm is used to separate the combined signal into its constitutent luminance and chrominance component parts, without luminance-chrominance crosstalk.
摘要翻译： 处理视频信号的亮度分量，以在每组内产生具有相同值的相互排斥的空间相关图像像素组的亮度分量。 在一个实施例中，每个组包括在场内分开的垂直平均像素1H。 在另一个实施例中，每个组包括在帧内分开的垂直平均像素。 色度分量被类似地处理。 使用包含加法和减法信号组合的可逆算法来组合处理的亮度和色度分量。 在解码器处，使用组合算法的逆来将组合信号分离成其组成亮度和色度分量部分，而没有亮度 - 色度串扰。
-
-
-
-
-
-
-
-
-
搜索结果
29 条记录 (耗时 0.02 秒)
