公开(公告)号：US4910585A

公开(公告)日：1990-03-20

申请号：US215123

申请日：1988-06-29

申请人： Terrence R. Smith ,  Michael A. Isnardi ,  Robert N. Hurst, Jr.

发明人： Terrence R. Smith ,  Michael A. Isnardi ,  Robert N. Hurst, Jr.

IPC分类号： H04N7/015 ,  H04N11/20 ,  H04N11/24

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：US4907069A

公开(公告)日：1990-03-06

申请号：US201137

申请日：1988-06-01

申请人： Wayne E. Bretl

发明人： Wayne E. Bretl

IPC分类号： H04N7/46 ,  H04N11/24

CPC分类号： H04N11/004 ,  H04N19/587

摘要： A video signal is produced as a 37.8 MHz bandwidth high resolution signal. The system then derives a compatible NTSC signal from that signal and transmits the NTSC signal on one channel and an enhancement signal is transmitted on a second channel. The enhancement signal is produced by storing the 37.8 MHz signal, scanning it at a lower frame rate, and folding it so that the original information is retained within a normal channel width. In an HDTV receiver, the two channels are received and the signals are decoded separately then, using dot interlace techniques, combined to produce the HDTV signal having three times the horizontal and vertical resolution of a standard NTSC signal.

摘要翻译： 产生视频信号作为37.8MHz带宽的高分辨率信号。 然后，该系统从该信号导出兼容的NTSC信号，并在一个信道上发送NTSC信号，并且在第二信道上发送增强信号。 增强信号通过存储37.8MHz信号，以较低的帧速率进行扫描并折叠，以使原始信息保持在正常信道宽度内产生。 在HDTV接收机中，接收两个信道，并且分别对信号进行解码，然后使用点交错技术组合以产生具有三倍标准NTSC信号的水平和垂直分辨率的HDTV信号。

公开(公告)号：US4888641A

公开(公告)日：1989-12-19

申请号：US252340

申请日：1988-10-03

申请人： Michael A. Isnardi ,  Terrence R. Smith ,  Jack S. Fuhrer ,  Barbara J. Roeder

发明人： Michael A. Isnardi ,  Terrence R. Smith ,  Jack S. Fuhrer ,  Barbara J. Roeder

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/46 ,  H04N11/24

CPC分类号： H04N11/008 ,  H04N11/004 ,  H04N19/577 ,  H04N19/30

摘要： A system for transmitting and receiving signals representing a high-definition television (HDTV) image is disclosed. The signals are sent over two conventional 6 MHz NTSC channels. A first signal, the main signal, is developed by encoding circuitry from HDTV source signals to be compatible with existing NTSC receivers in that it produces a display on those receivers which is not significantly distorted. The main signal includes psychophysically hidden video information which may be used by an extended definition receiver to produce a widescreen image having a higher level of detail than a conventional video image. A second signal, the auxiliary signal, is developed at the transmitter by decoding the main signal and subtracting the decoded main signal from the original HDTV source signals. The auxiliary signal, which includes frequency components from 0 Hz to 20 MHz is split into three bands, A (0 Hz-6MHz), B (6 MHz-12 MHz) and C (12 MHz-18 MHz). Bands B and C are frequency converted to occupy the 0 Hz-6 MHz band and are time division multiplexed on a line by line basis. The combined B and C bands are then time division multiplexed with the A band on a frame by frame basis for still images. For moving images, only the A band is sent. The receiver decodes the main signal, and, using a motion signal sent with the main signal, decodes the auxiliary signal. The decoded main and auxiliary signals are combined to reproduce the HDTV image.

摘要翻译： 公开了一种用于发送和接收表示高分辨率电视（HDTV）图像的信号的系统。 信号通过两个常规的6 MHz NTSC通道发送。 第一个信号，主要信号，由HDTV源信号的编码电路开发，以与现有的NTSC接收机兼容，因为它在这些接收机上产生不显着失真的显示。 主要信号包括心理物理隐藏的视频信息，其可由扩展定义接收机使用以产生具有比常规视频图像更高的细节水平的宽屏幕图像。 通过对主信号进行解码并从原始HDTV信号中减去解码的主信号，在发送器处产生第二信号辅助信号。 包括0Hz至20MHz频率分量的辅助信号分为A（0Hz-6MHz），B（6MHz-12MHz）和C（12MHz-18MHz）三个频带。 频带B和频段C被频率转换成占用0Hz-6MHz频带，并逐行进行时分复用。 然后，对于静止图像，组合的B和C频带逐帧地与A频带进行时分复用。 对于运动图像，只发送A波段。 接收机解码主信号，并使用与主信号一起发送的运动信号，对辅助信号进行解码。 解码的主和辅助信号被组合以再现HDTV图像。

公开(公告)号：US4870481A

公开(公告)日：1989-09-26

申请号：US127260

申请日：1987-12-01

申请人： Seiji Kawamata

发明人： Seiji Kawamata

IPC分类号： H04N7/015 ,  H04N11/24

CPC分类号： H04N7/015 ,  H04N11/002

摘要： A color television signal transmission system in which, at the transmitter end the frequency bandwidths of the brightness and chrominance signals are extended by two to three times as compared with the NTSC system to improve horizontal resolution and color reproducibility. At the receiver end, the received composite signal is subjected to both interframe separation and picture adaptive separation to provide two brightness signals and two chrominance signals. A combined brightness signal is formed by adding the two brightness signals after they have been multiplied by weights which are determined on the basis of picture movement, and a combined chrominance signal is formed in the same way. The combined brightness and chrominance signals are converted into red, green and blue color signals, and then the vertical resolution is improved by movement adaptive line interpolation. The transmission system has vertical resolution and horizontal resolution superior to the NTSC, IDTV, and EDTV systems, and furthermore can be realized by simpler and cheaper equipment than the HDTV system.

摘要翻译： 一种彩色电视信号传输系统，其中在发射机端，与NTSC系统相比，亮度和色度信号的频率带宽扩展了两到三倍，以提高水平分辨率和色彩再现性。 在接收端，接收的复合信号经过帧间分离和图像自适应分离，以提供两个亮度信号和两个色度信号。 通过将两个亮度信号乘以基于图像移动确定的权重，将两个亮度信号相加，形成组合的亮度信号，并且以相同的方式形成组合的色度信号。 组合的亮度和色度信号被转换为红色，绿色和蓝色信号，然后通过运动自适应线插补来提高垂直分辨率。 传输系统具有优于NTSC，IDTV和EDTV系统的垂直分辨率和水平分辨率，并且还可以通过比HDTV系统更简单和更便宜的设备来实现。

公开(公告)号：US4864393A

公开(公告)日：1989-09-05

申请号：US199683

申请日：1988-05-31

申请人： Vincent C. Harradine ,  Clive H. Gillard

发明人： Vincent C. Harradine ,  Clive H. Gillard

IPC分类号： H04N11/00 ,  H04N7/01 ,  H04N7/26 ,  H04N7/32 ,  H04N7/46 ,  H04N9/877 ,  H04N9/896 ,  H04N11/20 ,  H04N11/24

CPC分类号： H04N7/014 ,  H04N19/186 ,  H04N19/51 ,  H04N19/523 ,  H04N19/527 ,  H04N19/533 ,  H04N19/577 ,  H04N9/877 ,  H04N9/896

摘要： Apparatus for motion vector estimation in a television image using a digitized signal representing the image, comprises a vector filter and a vector calculator for determining motion in the image at points spaced a predetermined number of pixels horizontally and a predetermined number of pixels vertically by a block matching technique, thereby to derive motion vectors, and a sub-pixel motion estimator for refining the selection of the motion vectors by determining a sub-pixel offset representing motion between fields of the image not equal to an integral multiple of the spacing between pixels.

公开(公告)号：US4862260A

公开(公告)日：1989-08-29

申请号：US199680

申请日：1988-05-31

申请人： Vincent C. Harradine ,  Clive H. Gillard ,  John W. Richards

发明人： Vincent C. Harradine ,  Clive H. Gillard ,  John W. Richards

IPC分类号： H04N11/00 ,  H04N7/01 ,  H04N7/26 ,  H04N7/32 ,  H04N9/877 ,  H04N9/896 ,  H04N11/20 ,  H04N11/24

CPC分类号： H04N7/014 ,  H04N19/186 ,  H04N19/51 ,  H04N19/527 ,  H04N9/877 ,  H04N9/896

摘要： Apparatus for processing motion vectors associated with a digital television image, comprises a vector filter and a vector calculator for deriving a plurality of motion vectors respectively representing the motion of pixels in a corresponding plurality of blocks of pixels in the image, a processor for distributing the plurality of motion vectors into groups, each group comprising motion vectors lying within a respective different predetermined range of magnitudes and directions, and a processor for substituting for the motion vectors in each of a plurality of the groups into which the largest number of the motion vectors fall, a single motion vector representing the motion vectors in the respective group.

公开(公告)号：US4858004A

公开(公告)日：1989-08-15

申请号：US146188

申请日：1988-01-20

申请人： Kazukuni Kitagaki ,  Takeshi Ohto

发明人： Kazukuni Kitagaki ,  Takeshi Ohto

IPC分类号： H04N11/04 ,  H04N11/08 ,  H04N11/10 ,  H04N11/24

CPC分类号： H04N11/10

摘要： A coder/decoder for a time compressed integration system includes a coder for performing time compressed ingtegration of compressed wide- and narrow-width chrominance signals and a luminance signal having passed through a first phase compensation delay circuit and outputting a time compressed integration (TCI) signal, and a decoder for decoding the luminance signal and the chrominance signals from the TCI signal. The coder and the decoder are substantially arranged on a single LSI chip. The coder/decoder includes a first and a second memory section. In a coder mode, the first memory section serves as the first phase compensation delay circuit and part of the second memory section serves as the tapped delay devices in the vertical filters. In a decoder mode, the first memory section and one part of the second memory section serve as a second phase compensation delay circuit, and the other part of the second memory section serves as a tapped delay device in an interpolation filter.

摘要翻译： 用于时间压缩积分系统的编码器/解码器包括：编码器，用于对压缩的宽和窄宽度色度信号执行时间压缩的整合，以及通过第一相位补偿延迟电路并输出时间压缩积分（TCI）的亮度信号， 信号和解码器，用于对来自TCI信号的亮度信号和色度信号进行解码。 编码器和解码器基本上布置在单个LSI芯片上。 编码器/解码器包括第一和第二存储器部分。 在编码器模式中，第一存储器部分用作第一相位补偿延迟电路，并且第二存储器部分的一部分用作垂直滤波器中的抽头延迟器件。 在解码器模式中，第一存储器部分和第二存储器部分的一部分用作第二相位补偿延迟电路，并且第二存储器部分的另一部分用作内插滤波器中的抽头延迟器件。

公开(公告)号：US4722066A

公开(公告)日：1988-01-26

申请号：US760382

申请日：1985-07-30

申请人： John Armer ,  Erwin J. Wittmann

发明人： John Armer ,  Erwin J. Wittmann

IPC分类号： H04N7/26 ,  G06F7/38 ,  G06F7/48 ,  H04N5/44 ,  H04N11/00 ,  H04N11/24 ,  G06F11/00

CPC分类号： G06F7/48 ,  G06F7/49921

摘要： When a positive or a negative overflow error condition is encountered, the present invention substitutes the most positive or most negative value for the erroneous sample. The sign bit of a potentially erroneous value is inverted to form the MSB of the substitute value, and this value is, in turn, inverted and expanded to form the n-l LSB's of the substitute value. If an overflow error condition is detected, the erroneous value is replaced by the substitute value.

摘要翻译： 当遇到正或负的溢出错误条件时，本发明将错误样本的最正或最负值替换。 潜在错误值的符号位被反转以形成替代值的MSB，并且该值反过来并扩展以形成替代值的n-1个LSB。 如果检测到溢出错误条件，则将错误值替换为替换值。

公开(公告)号：US4707728A

公开(公告)日：1987-11-17

申请号：US687462

申请日：1984-12-28

申请人： Robert N. Hurst

发明人： Robert N. Hurst

IPC分类号： H04N11/24 ,  H04N7/08

CPC分类号： H04N11/004 ,  H04N11/006

摘要： A high-definition camera uses sinuous scanning to produce wide-bandwidth signals having high definition in the horizontal direction as well as in the vertical direction. A lowpass filter produces a limited-bandwidth signal from the wideband signal. The limited-bandwidth signal is compatible with standard television broadcast systems and receivers. A subtracting circuit compares the wide-bandwidth and limited-bandwidth signals to produce a delta signal representative of the difference. The delta signal exists only in regions of fine detail which cannot be resolved by the limited-bandwidth signal. The delta signal and its address are transmitted to the receiver together with the limited-bandwidth signal. At the receiver, the high-definition image is recreated by operation of the delta signal on the limited-definition signal. The delta signal and its addresses may be transmitted during the vertical blanking interval. In order to reduce the data rate of the delta signal, its generation is inhibited in regions of the picture which exhibit frame-to-frame motion.

摘要翻译： 高分辨率摄像机使用蜿蜒扫描来产生在水平方向和垂直方向上具有高清晰度的宽带宽信号。 低通滤波器从宽带信号产生有限带宽信号。 有限带宽信号与标准电视广播系统和接收机兼容。 减法电路比较宽带宽和有限带宽信号以产生代表差值的增量信号。 增量信号仅存在于细分区域，不能被有限带宽信号解决。 增量信号及其地址与有限带宽信号一起发送到接收器。 在接收机上，通过在限定清晰度信号上操作增量信号来重建高分辨率图像。 在垂直消隐间隔期间可以传输增量信号及其地址。 为了降低增量信号的数据速率，其在出现帧到帧运动的图像区域中被抑制。

公开(公告)号：US4704629A

公开(公告)日：1987-11-03

申请号：US849668

申请日：1986-04-09

申请人： Franciscus W. P. Vreeswijk ,  Sing L. Tan

发明人： Franciscus W. P. Vreeswijk ,  Sing L. Tan

IPC分类号： H04N11/00 ,  H04N7/00 ,  H04N7/08 ,  H04N9/80 ,  H04N11/08 ,  H04N11/24 ,  H04N13/00

CPC分类号： H04N13/0059 ,  H04N11/08 ,  H04N19/597 ,  H04N7/007 ,  H04N7/0806 ,  H04N13/0003 ,  H04N13/0048 ,  H04N13/0055 ,  H04N13/0239

摘要： Television transmission or data storage system with time-division multiplex encoding. At least two signal sources are coupled via an encoding circuit for time-division multiplex encoding to a transmission or storage channel to which a data receiver including a decoding circuit can be connected. The signal supplied comprises two or more sub-picture signals during the line periods and the signal-compression or expansion time ratios for the different sub-picture signals are different. The decoding circuit is suitable for consecutively supplying signals during a line period of the data receiver, which signals largely correspond to the different sub-picture signals.

摘要翻译： 电视传输或具有时分复用编码的数据存储系统。 至少两个信号源经由用于时分复用编码的编码电路耦合到可以连接包括解码电路的数据接收器的传输或存储信道。 提供的信号在行周期期间包括两个或更多个子图像信号，并且不同子图像信号的信号压缩或扩展时间比率不同。 解码电路适合在数据接收机的行周期期间连续地提供信号，这些信号在很大程度上对应于不同的子画面信号。