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    Video production facility
    3.
    发明授权
    Video production facility 失效
    视频制作设备

    公开(公告)号：US5036395A

    公开(公告)日：1991-07-30

    申请号：US431601

    申请日：1989-11-03

    申请人： Ulrich Reimers

    发明人： Ulrich Reimers

    IPC分类号： H04N5/268

    CPC分类号： H04N5/268

    摘要： A video production facility has a switching matrix for video signals that serves both as the usual studio switching matrix for video signals interposed between video signal sources and video signal destinations and also provides the necessary switching for supplying signals to a mixer and for directing the outputs of the mixer to their destinations. The signals to be mixed are directed to the outputs of the switching system that are connected to the mixer inputs. The switching system is subdivided into a first switch matrix for standard composite television signals, a second switch matrix for analog component television signals and a third switching matrix for digital video signals. Coders and decoders are provided for interconnecting the first and second switching matricies and analog-to-digital and digital-to-analog converters for interconnecting the second and third. The mixer is operated on a digital basis, and a control unit control the operation of the mixer and of the rest of the switching system.

    摘要翻译： 视频制作设备具有用于视频信号的切换矩阵，其用作插入在视频信号源和视频信号目的地之间的视频信号的通常演播室切换矩阵，并且还提供必要的切换以向混频器提供信号，并且用于将输出 搅拌机到达目的地。 要混合的信号被引导到连接到混频器输入的开关系统的输出。 开关系统被细分成用于标准复合电视信号的第一开关矩阵，用于模拟分量电视信号的第二开关矩阵和用于数字视频信号的第三开关矩阵。 提供了编码器和解码器，用于互连第一和第二开关矩阵以及用于互连第二和第三开关的模数转换器和数模转换器。 混频器以数字方式操作，控制单元控制混频器和交换系统的其余部分的操作。

    Method of improving television signal-to-noise ratio
    4.
    发明授权
    Method of improving television signal-to-noise ratio 失效
    提高电视信噪比的方法

    公开(公告)号：US4587560A

    公开(公告)日：1986-05-06

    申请号：US616931

    申请日：1984-06-04

    申请人： Ulrich Reimers

    发明人： Ulrich Reimers

    IPC分类号： H04N5/217 ,  H04N5/228 ,  H04N5/14 ,  H04N5/213 ,  H04N5/38

    CPC分类号： H04N5/228

    摘要： The output signal of a television pickup tube is caused to appear in a carrier frequency range above the video frequency baseband without the interposition of preliminary baseband transmission. This is done by modulation at carrier frequency by any of a variety of methods that chops or modulates the signal as it is formed, at a frequency which should be in the neighborhood of 16 MHz for a video bandwidth of 5 MHz. The modulation may be done by breaking up the picture on the pickup electrode by an optical grid or similarly interposing a grid which interrupts the scanning beam that scans the electrode, in which cases the modulating frequency is related to the scanning rate. Electronic modulation of the beam can also be applied to a suitable part of the electron gun structure or to a special modulating control electrode. Operating the preamplifier in the carrier frequency range, with the transistor stage preceeded and followed by bandpass filters makes it possible to use transistors having a large amount of noise of a kind that diminishes with increasing frequency, after which the signal can be brought back to baseband for further processing by means of a demodulator.

    摘要翻译： 导致电视拾取管的输出信号出现在视频基带上方的载波频率范围中，而不需要插入初步基带传输。 这可以通过在载波频率下的任何一种方法来完成，这些方法在对于5MHz的视频带宽应该在16MHz附近的频率上对其形成的信号进行斩波或调制。 调制可以通过用光栅打破拾取电极上的图像，或类似地插入中断扫描电极的扫描光束的格栅，在这种情况下调制频率与扫描速率有关。 光束的电子调制也可以应用于电子枪结构的适当部分或特殊的调制控制电极。 在载波频率范围内操作前置放大器，晶体管级前面跟随带通滤波器，可以使用具有大量噪声的晶体管，其频率随着频率的增加而减小，此后信号可以被带回到基带 用于通过解调器的进一步处理。

    Method and apparatus for converting a video signal to a corresponding signal of lower line count
    5.
    发明授权
    Method and apparatus for converting a video signal to a corresponding signal of lower line count 失效
    将视频信号转换为较低行计数的相应信号的方法和装置

    公开(公告)号：US4598314A

    公开(公告)日：1986-07-01

    申请号：US576613

    申请日：1984-02-03

    申请人： Ulrich Reimers

    发明人： Ulrich Reimers

    IPC分类号： H04N7/01

    CPC分类号： H04N7/0135 ,  H04N7/0125

    摘要： A switch (7) changes its position field by field so that the first field of each frame of digitized video signals may be processed differently from the second field. One field may be furnished directly to the switch and the other one through a line interpolator. In another embodiment, one field is subjected to a simpler line interpolator and the other to a line interpolator using two stages of one line delay. The line interpolators preserve some of the quality of the higher line count signal produced by a high definition camera. The signals passing through the switch (7) are distributed line by line alternately to storage units (M1) and (M2), where they are written in at a sampling rate determined in accordance with the invention. They are read out at a lower sampling rate field by field alternately from the two storage means, so that one field is read out while two fields are written in, each with the desired lower line count and desired line length to avoid geometrical distortion. The relation of the first sampling rate to the various line data is determined by a formula in accordance with the invention, so as to avoid distortion of picture geometry.

    摘要翻译： 开关（7）逐场改变其位置，使得每帧数字化视频信号的第一场可以与第二场不同地被处理。 一个场可以直接配置到交换机，另一个通过线插入器。 在另一个实施例中，一个场经受更简单的线内插器，另一个场使用两行一行延迟的线内插器。 线插补器保留由高分辨率摄像机产生的较高行计数信号的一些质量。 通过开关（7）的信号交替地分配到存储单元（M1）和（M2），在那里它们以根据本发明确定的采样率被写入。 它们以较低的采样率场由两个存储装置交替地读出，使得在写入两个场时读出一个场，每个具有期望的较低行数和期望的行长度以避免几何失真。 通过根据本发明的公式确定第一采样率与各行数据的关系，以避免画面几何的扭曲。

    Method of improving the resolution of the semiconductor sensor type of television camera
    6.
    发明授权
    Method of improving the resolution of the semiconductor sensor type of television camera 失效
    提高半导体传感器类型电视摄像机分辨率的方法

    公开(公告)号：US4507677A

    公开(公告)日：1985-03-26

    申请号：US476607

    申请日：1983-03-18

    申请人： Ulrich Reimers

    发明人： Ulrich Reimers

    IPC分类号： H04N9/09 ,  H04N9/04

    CPC分类号： H04N9/045

    摘要： In a color television camera where the semiconductor array picture sensors for the three colors of a television signal have, for example, 420 points per line, so that the first order carrier frequency lies in the neighborhood of 8 MHz, corresponding picture points for the respective colors are offset by 1/3 of the picture point period for any one color. The green signal is used as a reference signal and the red and blue signals are separated into a high-frequency component and a component limited to a top frequency of 3 MHz. The higher frequency components of the red and blue signals are added to the green signal, so that the phase relations at the first order carrier frequency will tend to cancel, so that a wideband green component of greatly reduced high frequency interference and band limited red and blue components free of such interference are made available with very simple signal processing to improve the resolution of the television picture.

    摘要翻译： 在彩色电视摄像机中，用于电视信号的三种颜色的半导体阵列图像传感器具有例如每行420点，使得第一级载波频率位于8MHz附近，相应的相应图像点 颜色偏移了任何一种颜色的图像点周期的1/3。 绿色信号用作参考信号，红色和蓝色信号被分为高频分量和限于3MHz的最高频率的分量。 红色和蓝色信号的较高频率分量被添加到绿色信号，使得第一级载波频率处的相位关系将倾向于消除，使得宽带绿色分量大大降低了高频干扰并且频带限制了红色和 通过非常简单的信号处理可以获得没有这种干扰的蓝色分量，以提高电视图像的分辨率。