公开(公告)号：US06246432B1

公开(公告)日：2001-06-12

申请号：US09085754

申请日：1998-05-27

申请人： Satoshi Takami ,  Noriaki Takahashi ,  Kohei Iketani

发明人： Satoshi Takami ,  Noriaki Takahashi ,  Kohei Iketani

IPC分类号： H04N5268

CPC分类号： A61B1/00045 ,  H04N5/268 ,  H04N7/181 ,  H04N2005/2255

摘要： An endoscope system comprises plural video processor devices for an endoscope prepared for every video endoscope, a video signal switching device connected to each of the video processor devices for an endoscope, and a monitor connected to the video signal switching device. The video signal switching device comprises two video signal input terminals respectively connected to the video processor devices, a flip flop for generating an alternative switching signal in accordance with the rotational position of a switching dial, two switches of which one ends respectively connected to the video signal input terminals and which opens and closes in accordance with the switching signal generated from this flip flop, and a video signal output terminal connected to the other ends of these two switches.

摘要翻译： 一种内窥镜系统，包括为每个视频内窥镜准备的内窥镜的多个视频处理器装置，连接到每个用于内窥镜的视频处理器装置的视频信号切换装置，以及连接到视频信号切换装置的监视器。 视频信号切换装置包括分别连接到视频处理器装置的两个视频信号输入端子，用于根据切换拨盘的旋转位置产生替代切换信号的触发器，其中一个开关分别连接到视频 信号输入端子，并且根据从该触发器产生的开关信号而打开和关闭，以及连接到这两个开关的另一端的视频信号输出端子。

公开(公告)号：US5708482A

公开(公告)日：1998-01-13

申请号：US525136

申请日：1995-09-08

申请人： Akihiro Takahashi ,  Kohei Iketani

发明人： Akihiro Takahashi ,  Kohei Iketani

IPC分类号： H04N5/18 ,  H04N5/16

CPC分类号： H04N5/18

摘要： An image-signal clamping circuit processes image signals obtained from a solid state image sensor provided at a distal end of an electronic endoscope which do not have a direct-current component to restore a direct-current component thereof. The clamping circuit is arranged such that the restoration of a direct-current component of an image signal can be properly and stably carried out. The clamping circuit includes a sample-and-hold circuit to temporarily store an image signal, an analog-to-digital converter to output digital image signals, a device for digitally correcting the digital image data, and a digital-to-analog converter to output corrected analog image signals. The pedestal level of the corrected output analog image signal approximates a reference pedestal level.

摘要翻译： 图像信号钳位电路处理从设置在不具有直流分量的电子内窥镜的远端处的固态图像传感器获得的图像信号，以恢复其直流分量。 钳位电路被布置成使得可以适当且稳定地执行图像信号的直流分量的恢复。 钳位电路包括用于临时存储图像信号的采样保持电路，用于输出数字图像信号的模数转换器，用于数字校正数字图像数据的装置，以及数模转换器 输出校正的模拟图像信号。 校正的输出模拟图像信号的基准电平接近参考基准电平。

公开(公告)号：US5136674A

公开(公告)日：1992-08-04

申请号：US677040

申请日：1991-03-29

申请人： Shinichi Kakiuchi ,  Kohei Iketani

发明人： Shinichi Kakiuchi ,  Kohei Iketani

IPC分类号： G02B6/00 ,  G02B6/04 ,  G02B6/06 ,  H04N5/225 ,  H04N9/04 ,  H04N9/73 ,  H04N17/02

CPC分类号： G02B6/04 ,  G02B6/06

摘要： An optical fiber assembly is used to conduct incident light from, e.g., a light-diffusing plate to a photodetecting apparatus such as an automatic white balance sensor equipped with an RGB filter. The light-admitting ends of the fibers are distributed substantially uniformly across the light-admitting end of the fiber assembly, and the light-issuing ends of the fibers are arranged in a predetermined pattern, e.g., they are grouped in accordance with the arrangement of the RGB filter.

摘要翻译： 使用光纤组件将来自例如光扩散板的入射光导入诸如配备有RGB滤光器的自动白平衡传感器等光电检测装置。 纤维的光入射端基本均匀地分布在纤维集合体的光入射端上，并且光纤的发光端以预定的图案排列，例如，它们根据 RGB滤镜。

公开(公告)号：US4903136A

公开(公告)日：1990-02-20

申请号：US238531

申请日：1988-08-31

申请人： Kohei Iketani

发明人： Kohei Iketani

IPC分类号： H04N5/235 ,  H04N5/243

CPC分类号： H04N5/235 ,  H04N5/2354 ,  H04N5/243

摘要： An automatic sensitivity controller for use in an electronic still camera system which performs flash photography. This device is designed to expand the range of the photographable subject-to-camera distance even if a small-emission electronic flash is employed and is provided with an image pickup device, a distance metering element for measuring the camera-to-subject distance, a variable-gain amplifier circuit having a control terminal and amplifying a video signal supplied from the image pickup device at a gain determined in response to a control signal applied to the control terminal; and a gain control device for applying a control signal relating to a measured value of the camera-to-subject distance to the control terminal.

摘要翻译： 一种用于执行闪光摄影的电子静态照相机系统中的自动灵敏度控制器。 该设备被设计成即使使用小型发射电子闪光灯也能够扩大可摄影对象距离的范围，并且设置有图像拾取装置，用于测量相机对被摄体距离的距离计量元件， 可变增益放大器电路，具有控制端子，并且以响应于施加到控制端子的控制信号确定的增益放大从图像拾取器件提供的视频信号; 以及增益控制装置，用于将与摄像机对对象距离的测量值相关的控制信号施加到控制终端。

公开(公告)号：US4558367A

公开(公告)日：1985-12-10

申请号：US434270

申请日：1982-09-30

申请人： Shinji Urata ,  Hitoshi Hirobe ,  Kohei Iketani

发明人： Shinji Urata ,  Hitoshi Hirobe ,  Kohei Iketani

IPC分类号： G02B7/36 ,  H04N5/232 ,  H04N9/28

CPC分类号： G02B7/36 ,  H04N5/23212

摘要： An automatic focusing device for video camera in which the distance between a lens mounting section of a camera body and the imaging plane of an imaging unit is varied for focusing by moving at least either a lens mounting section or the imaging plane along the optical axis. The device comprises focus detector for receiving the data about an object through a light splitter and driving circuit for varying the distance between lens mounting section and imaging plane according to the output of the focus detector.

摘要翻译： 一种用于摄像机的自动聚焦装置，其中相机主体的透镜安装部分和成像单元的成像平面之间的距离通过沿着光轴移动透镜安装部分或成像平面来改变聚焦。 该装置包括：聚焦检测器，用于通过光分离器和驱动电路接收关于物体的数据，根据焦点检测器的输出改变透镜安装部分和成像平面之间的距离。