公开(公告)号：US4649421A

公开(公告)日：1987-03-10

申请号：US666035

申请日：1984-10-29

申请人： Takuma Kodama ,  Kenji Takahashi ,  Shizuka Ishibashi ,  Koji Kudo ,  Yukihiro Masuda ,  Masanori Hombough ,  Osamu Miyoshi ,  Kazuhisa Yoshiwara

发明人： Takuma Kodama ,  Kenji Takahashi ,  Shizuka Ishibashi ,  Koji Kudo ,  Yukihiro Masuda ,  Masanori Hombough ,  Osamu Miyoshi ,  Kazuhisa Yoshiwara

IPC分类号： H04N9/093 ,  H01J29/56

CPC分类号： H04N9/093

摘要： A digital registration circuit for a multi-tube television camera wherein correction quantities corresponding to positions on a target of an image pickup tube are stored in a digital memory. The digital signal for the correction quantity read out from the digital memory is converted into an analog signal which is supplied to a low-pass filter and smoothed. The smoothed signal is sampled at a sampling frequency higher than the frequency at which the correction quantities stored in the digital memory are read out and the sampled signal is converted into a digital signal. The digital signals sequentially produced are applied to a shift register, and four sequential sample values supplied from the shift register are added together in an adder. The shift register operates in such a manner that four samples are shifted one by one every adding time. An output signal from the adder is used for correcting registration, so that the generation of shading can be prevented.

摘要翻译： 一种用于多管电视摄像机的数字注册电路，其中对应于图像拾取管的目标上的位置的校正量被存储在数字存储器中。 从数字存储器读出的用于校正量的数字信号被转换成提供给低通滤波器并平滑的模拟信号。 平滑信号以比读出存储在数字存储器中的校正量被读出的频率高的采样频率被采样，并且采样信号被转换成数字信号。 顺序产生的数字信号被施加到移位寄存器，并且从移位寄存器提供的四个连续采样值在加法器中相加在一起。 移位寄存器以每增加一个时间逐个移位四个样本的方式进行操作。 来自加法器的输出信号用于校正配准，从而可以防止阴影的产生。

公开(公告)号：US4647822A

公开(公告)日：1987-03-03

申请号：US638267

申请日：1984-08-06

申请人： Yukihiro Masuda ,  Shizuka Ishibashi ,  Kenji Takahashi ,  Takuma Kodama ,  Koji Kudo ,  Masanori Hombough

发明人： Yukihiro Masuda ,  Shizuka Ishibashi ,  Kenji Takahashi ,  Takuma Kodama ,  Koji Kudo ,  Masanori Hombough

IPC分类号： H04N5/16 ,  H04N9/093 ,  H01J29/52

CPC分类号： H04N9/093

摘要： A television camera capable of correcting shadings caused by digital registration faculty employed in a multi-tube type color television camera. The television camera comprises differentiating circuits for generating differentiated waves of correction waveforms used for adjusting registration, and non-linear circuits for processing the differentiated waves. Outputs of the non-linear circuits control the gain of a video signal circuit so that components responsible for the generation of shadings can be removed from a video signal.

摘要翻译： 一种能够校正由多管式彩色电视摄像机中使用的数字注册教授引起的阴影的电视摄像机。 电视摄像机包括用于产生用于调整配准的校正波形的微小波的微分电路和用于处理微分波的非线性电路。 非线性电路的输出控制视频信号电路的增益，使得负责生成阴影的组件可以从视频信号中去除。