公开(公告)号：US4800435A

公开(公告)日：1989-01-24

申请号：US932671

申请日：1986-11-20

申请人： Sadayuki Ikeda ,  Hidehiko Inoue ,  Kiyotake Nagai ,  Hiroshi Nakajima ,  Yasuichi Ushiyama

发明人： Sadayuki Ikeda ,  Hidehiko Inoue ,  Kiyotake Nagai ,  Hiroshi Nakajima ,  Yasuichi Ushiyama

IPC分类号： H04N3/15 ,  H04N3/14

CPC分类号： H04N3/1556 ,  H04N3/1531

摘要： An image sensing device for a TV camera and method of driving the same is disclosed whereby the effective charge accumulation time in each light-sensing row in the imaging area can be reduced thereby eliminating fuzzy images produced when fast moving objects are picked up. The driving circuit of the imaging device gives the sensor a shutter function of less than 1/60 second and up to 1/2000 second exposure time without changing the structure of the sensor. There is provided a method in which charges accumulated in each row of the light-sensing elements are taken out and discarded at an optional time during an active video period, leaving an effective charge accumulation period of less than 1/60 second.

摘要翻译： 公开了一种用于TV摄像机的图像感测装置及其驱动方法，由此可以减少成像区域中每个感光行中的有效电荷累积时间，从而消除了当快速移动的物体被拾取时产生的模糊图像。 成像装置的驱动电路给传感器提供小于1/60秒和高达1/2000秒曝光时间的快门功能，而不改变传感器的结构。 提供了一种方法，其中在活动视频周期期间的任选时间取出在每一行感光元件中累积的电荷并丢弃，留下小于1/60秒的有效电荷累积周期。

公开(公告)号：US4388641A

公开(公告)日：1983-06-14

申请号：US246546

申请日：1981-03-23

申请人： Setsuo Yamamoto ,  Yasuichi Ushiyama

发明人： Setsuo Yamamoto ,  Yasuichi Ushiyama

IPC分类号： H04N9/093 ,  H04N9/09

CPC分类号： H04N9/093

摘要： In an automatic centering unit for a color television camera, a signal representing a phase-difference between video signals of different color channels is picked up to produce a correction voltage only when correlation of video signals exists for each selected discrete area on the television screen between predetermined time points having an interval of time of at least a frame period, so that the centering unit allows an accurate and quick operation even if focusing is not sufficient or if noise is contained in the video signal.

摘要翻译： 在用于彩色电视摄像机的自动定心单元中，仅当不同颜色通道的视频信号之间的相位差的信号被拾取以产生校正电压，仅在视频信号的相关性存在于电视屏幕上的每个选定离散区域之间时 预定时间点具有至少帧周期的时间间隔，使得即使聚焦不充分或如果噪声包含在视频信号中，定心单元也允许精确和快速的操作。

公开(公告)号：US4202009A

公开(公告)日：1980-05-06

申请号：US930269

申请日：1978-08-02

申请人： Yasuichi Ushiyama ,  Setsuo Yamamoto

发明人： Yasuichi Ushiyama ,  Setsuo Yamamoto

IPC分类号： H04N5/18 ,  H04N9/09 ,  H04N9/64 ,  H04N9/53

CPC分类号： H04N9/09

摘要： In order to stabilize the black level in the red, green or blue channel, black pulses are inserted during a blanking period and are of a level slightly higher than the black level. The resulting color signal is clamped in a first clamping circuit to a predetermined voltage during that part of the blanking period which is free of the black pulse inserted therein, and, after being processed for white compression, black clipping or gamma correction, is provided to a second clamping circuit for fixing the clamping point at a definite and preselected voltage. The black pulse level of the output from the second clamping circuit is compared with a reference voltage and, upon the result obtained, the clamp voltage of the first clamping circuit is controlled to thereby completely suppress black level variations. With this processing amplifier device, the pedestal level is adjustable by varying either the reference voltage or the level of the black pulses.

摘要翻译： 为了稳定红色，绿色或蓝色通道中的黑色电平，在消隐期间插入黑色脉冲，其电平略高于黑色电平。 所得到的彩色信号被钳位在第一钳位电路中，在该消隐周期的该部分无黑插入脉冲的部分期间，并且在被处理为白色压缩之后，将黑色限幅或伽马校正提供给 第二钳位电路，用于将钳位点固定在一定的预选电压。 将来自第二钳位电路的输出的黑色脉冲电平与参考电压进行比较，并且根据获得的结果，控制第一钳位电路的钳位电压，从而完全抑制黑电平变化。 利用该处理放大器装置，可以通过改变参考电压或黑色脉冲的电平来调节基座电平。