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公开(公告)号：US4745462A
公开(公告)日：1988-05-17
申请号：US20639
申请日：1987-03-02
摘要： Computer main memory is used for storing relatively densely sampled green and detail information concerning a television display and for storing relatively sparsely sampled red information and blue information concerning the same television display. The relatively densely sampled green and detail information is read out in substantially real-time from computer main memory during line trace intervals in the television display. The relatively sparsely sampled red information and blue information are read out of computer main memory in advanced and compressed time during selected line retrace intervals in the television display.
摘要翻译： 计算机主存储器用于存储关于电视显示器的相对密集采样的绿色和细节信息，并且用于存储关于相同的电视显示器的相对稀疏采样的红色信息和蓝色信息。 相对密集采样的绿色和细节信息在电视显示器中的线路间隔期间从计算机主存储器基本上实时地读出。 相对稀疏采样的红色信息和蓝色信息在电视显示器中的选择的线回扫间隔期间以高级和压缩时间从计算机主存储器中读出。
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32.发明授权Solid state imager with transfer smear suppression for moving and stationary images 失效固态成像器具有移动和静止图像的转移拖影抑制
公开(公告)号：US4731656A
公开(公告)日：1988-03-15
申请号：US880321
申请日：1986-06-30
IPC分类号： H04N5/359 , H04N5/361 , H04N5/372 , H04N5/3722 , H04N5/3725 , H04N5/378 , H04N3/14
CPC分类号： H04N5/3725 , H04N5/3595 , H04N5/361 , H04N5/3722
摘要： A field transfer imager is erased after every field transfer, prior to a new field of pixels-descriptive charge packet being accumulated in the successive charge transfer stages of the charge transfer channels of the image register. The image register is operated to supply a field of "null" charge packets for each field of pixel-descriptive charge packets it supplies. The "null" charge packets and pixel-descriptive charge packets are temporarily stored in respective field storage registers, and converted a line at a time to serial format for sensing. The resulting "null" samples and pixel-descriptive samples are differentially combined to provide pixel-descriptive samples with suppressed dark current ramp components and, assuming field-rate shuttering of the imager is not used, with suppressed transfer smear components.
摘要翻译： 在场图像寄存器的电荷转移通道的连续电荷转移阶段中积累的像素描述性电荷分组的新场之前，场传输成像器被擦除。 操作图像寄存器以为其提供的像素描述性电荷包的每个场提供“空”电荷包的字段。 “零”电荷分组和像素描述性电荷分组临时存储在相应的现场存储寄存器中，并且每次将一行转换成用于感测的串行格式。 所得到的“零”样本和像素描述样本被差分组合以提供具有抑制的暗电流斜坡分量的像素描述样本，并且假设不使用成像器的场速率快门，具有抑制的转移拖尾分量。
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33.发明授权Dual mode television receiver for displaying wide screen and standard aspect ratio video signals 失效用于显示宽屏幕和标准宽高比视频信号的双模式电视接收机
公开(公告)号：US4729012A
公开(公告)日：1988-03-01
申请号：US771551
申请日：1985-08-30
IPC分类号： H04N5/46 , H04N20060101 , H04N3/223 , H04N5/222 , H04N7/00 , H04N7/01 , H04N7/015 , H04N9/64 , H04N11/00 , H04N11/06 , H04N11/20
CPC分类号： H04N7/0122 , Y10S348/903
摘要： A wide aspect ratio television system includes memories for storing and recovering a video input signal in response to read and write clock pulses, respectively. Write clock pulses are deleted to compress edge regions of a wide aspect ratio input signal and read clock pulses are deleted to restore the signal to its original aspect ratio. The pattern of deleted pulses is altered on a line-by-line basis to reduce visible artifacts of signal decimation. Dual mode receivers include provisions for controlling edge blanking, interpolation and the pattern of clock pulses deleted as a function of received signals. Wide and standard aspect ratio images are displayed without altering the width of the display raster.
摘要翻译： 大宽高比电视系统包括分别响应于读和写时钟脉冲存储和恢复视频输入信号的存储器。 写入时钟脉冲被删除以压缩宽宽比输入信号的边缘区域，并且删除读取时钟脉冲以将信号恢复到其原始宽高比。 删除的脉冲的模式在逐行的基础上被改变，以减少信号抽取的可见伪像。 双模式接收器包括用于控制边沿消隐，内插和作为接收信号的函数被删除的时钟脉冲的模式的规定。 在不改变显示栅格宽度的情况下显示宽和标准宽高比图像。
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公开(公告)号：US4679084A
公开(公告)日：1987-07-07
申请号：US876432
申请日：1986-06-20
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。
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公开(公告)号：US4636841A
公开(公告)日：1987-01-13
申请号：US736968
申请日：1985-05-22
CPC分类号： H04N9/78
摘要： A field comb filter for separating luminance signal from NTSC composite video additively combines signals separated by 263 horizontal lines. Vertical detail is restored and motion compensation provided by subtractively combining signal separated by 262 horizontal lines and adding the difference to the separated luminance signal.
摘要翻译： 用于从NTSC复合视频中分离亮度信号的场梳状滤波器将由263条水平线分开的信号相加组合。 通过对由262条水平线分隔的信号进行减法组合，并将差值与分离的亮度信号相加，从而恢复垂直细节和运动补偿。
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36.发明授权
公开(公告)号：US4589019A
公开(公告)日：1986-05-13
申请号：US487862
申请日：1983-04-22
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。
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公开(公告)号：US4571511A
公开(公告)日：1986-02-18
申请号：US508287
申请日：1983-06-27
CPC分类号： H04N5/21
摘要： A noise reduction circuit which operates on the principle of coring includes a variable offset potential source in series with one diode which is connected antiparallel with a second diode. The output terminal of the parallel circuit is connected to an integrating capacitor so that the turn-on potential of the diode circuit floats with the output potential. The variable offset potential source is responsive to the output potential to apply varying forward or back bias to one of the diodes and thereby change the coring threshold of the diode dependent upon signal amplitude. The variable offset potential source consists of a resistor connected between two variable current sources configured to provide equal currents of opposite polarity thereto. A digital implementation is also included.
摘要翻译： 以取芯原理工作的噪声降低电路包括与一个二极管串联的可变偏置电位源，该二极管与第二二极管反平行连接。 并联电路的输出端子连接到积分电容器，使得二极管电路的导通电位与输出电位相垂直。 可变偏置电位源响应于输出电位以向二极管之一施加变化的正向或反向偏置，从而根据信号幅度改变二极管的取芯阈值。 可变偏移电位源由连接在两个可变电流源之间的电阻器构成，以提供相反极性的相等电流。 还包括数字实现。
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公开(公告)号：US4507676A
公开(公告)日：1985-03-26
申请号：US437263
申请日：1982-10-28
摘要： A matrix for digital video signals separates each coefficient into a binary part and a remainder. The binary part can be implemented very simply by a hardwired right shift. The remainder can be implemented using a ROM. Less ROM memory space is required than for implementing the entire coefficient in a ROM.
摘要翻译： 用于数字视频信号的矩阵将每个系数分成二进制部分和余数。 二进制部分可以非常简单地通过硬连线右移来实现。 其余的可以使用ROM来实现。 需要较少的ROM存储空间，而不是在ROM中实现整个系数。
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公开(公告)号：US4481539A
公开(公告)日：1984-11-06
申请号：US458634
申请日：1983-01-17
CPC分类号： H04N5/2173
摘要： Two or more CCD imagers, which have random defects are optically coupled to form a single image. The CCD's are in registry. Because of the random nature of the location of the defects, the defective photosensors of one imager are aligned with good photosensors of another. Memories keep track of which locations of which CCD are defective. The imagers are operated synchronously and the signals from good photosensor locations are summmed for improved signal-to-noise ratio. When a location is addressed at which one imager has a defective photosensor, the respective memory decouples it from the good photosensor of the other imager. The signal level is restored for that pixel by increasing the gain of a preamp by the correct amount. If the imagers are made from the same mask, they may have almost identically corresponding defective photosensors. Then one imager is mounted upside-down relative to the other and scanned backwards so the defects do not coincide.
摘要翻译： 具有随机缺陷的两个或更多个CCD成像器被光耦合以形成单个图像。 CCD的注册表。 由于缺陷的位置的随机性质，一个成像器的有缺陷的光电传感器与另一个成像器的良好光电传感器对准。 记忆记录哪些CCD有缺陷的位置。 成像器被同步操作，来自良好光电传感器位置的信号被加总以提高信噪比。 当一个位置被寻址到哪一个成像器具有有缺陷的光电传感器时，相应的存储器将其与另一个成像器的良好的光电传感器分离。 通过将前置放大器的增益增加正确的量来恢复该像素的信号电平。 如果成像器由相同的掩模制成，则它们可能具有几乎相同的相应的有缺陷的光电传感器。 然后，一个成像器相对于另一个倒置安装，向后扫描，因此缺陷不一致。
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公开(公告)号：US4471388A
公开(公告)日：1984-09-11
申请号：US330033
申请日：1981-12-14
申请人： Robert A. Dischert
发明人： Robert A. Dischert
CPC分类号： H04N5/772 , G11B31/006 , H04N5/335 , Y10S358/906
摘要： A television camera-recorder combination includes an imager which forms a signal representative of the image during an integration interval. The integration interval is followed by a pull-down interval during which the integrated signal is transferred out of the photoresponsive region. Streaking of an image displayed from the signal results from light falling on the photoresponsive region during the pull-down interval. A mechanical shutter periodically prevents light from falling upon the photoresponsive region of the imager. The shutter is synchronized with the pull-down interval. The synchronization and drive arrangement of the video recorder portion is mechanically coupled to the shutter to provide a common drive. In another embodiment, a color wheel associated with the viewfinder of the camera is mechanically coupled to the video recorder drive arrangement for common mechanical drive.
摘要翻译： 电视摄像机组合包括在积分间隔期间形成表示图像的信号的成像器。 积分间隔后跟一个下拉间隔，在此间隔期间，积分信号被传送出光响应区域。 在下拉间隔期间，从信号显示的图像的延展由光落在光响应区域上的光产生。 机械快门定期地防止光线落在成像器的光响应区域上。 快门与下拉间隔同步。 视频记录器部分的同步和驱动装置机械地联接到快门以提供公共的驱动。 在另一个实施例中，与摄像机的取景器相关联的色轮机械地耦合到视频记录器驱动装置用于共同的机械驱动。
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