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1. 发明授权

US5416818A X-ray TV camera having function to switch a visual field of X-ray image 失效
标题翻译： X射线电视摄像机具有切换X射线图像的视野的功能
公开(公告)号：US5416818A
公开(公告)日：1995-05-16
申请号：US145575
申请日：1993-11-04
申请人： Fumitaka Takahashi , Hisatake Yokouchi , Sadao Takahshi
发明人： Fumitaka Takahashi , Hisatake Yokouchi , Sadao Takahshi
IPC分类号： A61B6/00 , H04N5/32
CPC分类号： H04N5/217 , H04N5/32
摘要： An X-ray TV camera apparatus having a function to switch a visual field of an X-ray image, comprising an X-ray generating apparatus, an image intensifier for converting X-ray information by an X-ray which was generated from the X-ray generating apparatus and passed through an object to be examined into an optical image, a TV camera for converting the optical image from the image intensifier into the video signal, a switch to switch the visual field of the X-ray image on the image intensifier, and a correcting circuit to shading correct the video signal so that the video signal from the TV camera gives a uniform image in accordance with the visual field switched by the switch.
摘要翻译：一种具有切换X射线图像的视野的功能的X射线电视摄像机装置，包括X射线产生装置，用于通过从X生成的X射线转换X射线信息的图像增强器射线生成装置，将要检查的物体通过光学图像，用于将来自图像增强器的光学图像转换为视频信号的TV摄像机，切换图像上的X射线图像的视野增强器和用于阴影的校正电路校正视频信号，使得来自TV摄像机的视频信号根据由开关切换的视野给出均匀的图像。

2. 发明授权

US06351518B2 Digital radiography system having an X-ray image intensifier tube 失效
标题翻译：具有X射线图像增强管的数字射线照相系统
公开(公告)号：US06351518B2
公开(公告)日：2002-02-26
申请号：US09883192
申请日：2001-06-19
申请人： Hisatake Yokouchi , Yoichi Onodera , Fumitaka Takahashi , Mitsuru Ikeda , Koichi Koike
发明人： Hisatake Yokouchi , Yoichi Onodera , Fumitaka Takahashi , Mitsuru Ikeda , Koichi Koike
IPC分类号： H05G164
CPC分类号： H05G1/64
摘要： A digital radiography system having an X-ray source irradiating an object to be inspected with X-ray, an X-ray image intensifier tube which receives the X-rays which pass through the object and converts the received X-rays into an optical image, a video camera which picks up the output image and has different modes, an optical system including a plurality of lenses and disposed between the X-ray image intensifier tube and the video camera, an image processor which converts an output from the video camera into a digital image data, and an image display for displaying an X-ray image by reading out the digital image data from the image processor.
摘要翻译：一种具有用X射线照射待检查对象的X射线源的数字射线照相系统，接收通过物体的X射线并将接收到的X射线转换成光学图像的X射线图像增强管拍摄输出图像并具有不同模式的摄像机，包括多个透镜并且设置在X射线图像增强管和摄像机之间的光学系统，将来自摄像机的输出转换为数字图像数据和用于通过从图像处理器读出数字图像数据来显示X射线图像的图像显示器。

3. 发明授权

US5875226A Digital radiography system having an X-ray image intensifier tube 失效
标题翻译：具有X射线图像增强管的数字射线照相系统
公开(公告)号：US5875226A
公开(公告)日：1999-02-23
申请号：US713178
申请日：1996-09-12
申请人： Hisatake Yokouchi , Yoichi Onodera , Fumitaka Takahashi , Mitsuru Ikeda , Koichi Koike
发明人： Hisatake Yokouchi , Yoichi Onodera , Fumitaka Takahashi , Mitsuru Ikeda , Koichi Koike
IPC分类号： H05G1/64
CPC分类号： H05G1/64
摘要： A digital radiography system obtaining X-ray images of a patient body through an X-ray image intensifier tube and a video camera optically coupled with the X-ray image intensifier tube. The diameter of an input imaged size of the X-ray image intensifier tube is ranged from 254 to 457 mm, the diameter of an output image size of the X-ray image intensifier tube is ranged from 50 to 90 mm, and the ratio of the diameter of the output image size against the diameter of the input image size is ranged from 4 to 8.
摘要翻译：一种数字射线照相系统，其通过X射线图像增强管和与X射线图像增强管光学耦合的摄像机来获得患者身体的X射线图像。 X射线图像增强管的输入成像尺寸的直径为254〜457mm，X射线图像增强管的输出图像尺寸的直径为50〜90mm，输出图像尺寸的直径与输入图像尺寸的直径在4到8之间。

4. 发明授权

US5117447A Image input apparatus 失效
标题翻译：图像输入装置
公开(公告)号：US5117447A
公开(公告)日：1992-05-26
申请号：US466928
申请日：1990-01-18
申请人： Hisatake Yokouchi , Fumitaka Takahashi , Hideyuki Sakai
发明人： Hisatake Yokouchi , Fumitaka Takahashi , Hideyuki Sakai
IPC分类号： A61B6/00 , H04N3/16 , H04N5/225 , H04N5/228 , H04N5/32 , H04N7/18
CPC分类号： H04N5/2253 , H04N5/3205
摘要： An image input apparatus including a camera tube having a photoconductive layer onto which an optical image is to be projected, a cathode for emitting an electron beam for scanning the photoconductive layer, a control electrode for controlling a beam current of the electron beam emitted from the cathode in accordance with a control voltage, and a mesh electrode having a frame, the apparatus further including a deflecting circuit for periodically deflecting the electron beam to scan the photoconductive layer. The deflecting circuit periodically deflects the electron beam to scan an area outside a restricted scanning area determined by the frame of the mesh electrode. A beam current control circuit is further added, if necessary, for generating a control voltage and applying the control voltage to the control electrode to control the beam current of the electron beam such that the electron beam does not collide with the frame of the mesh electrode during a period in which the electron beam scans the area outside the restricted scanning area.
摘要翻译：一种图像输入装置，包括具有要投影光学图像的光电导层的相机管，用于发射用于扫描光电导层的电子束的阴极，用于控制从该光电导层发射的电子束的束电流的控制电极阴极，以及具有框架的网状电极，该装置还包括用于周期性地偏转电子束以扫描光电导层的偏转电路。偏转电路周期性地偏转电子束以扫描由网状电极的框架确定的受限扫描区域之外的区域。如果需要，还需要一个电流电流控制电路，用于产生控制电压并向控制电极施加控制电压以控制电子束的电流，使得电子束不与网状电极的框架碰撞在电子束扫描受限扫描区域外的区域的期间。

5. 发明授权

US4881124A X-ray television apparatus 失效
标题翻译： X光电视机
公开(公告)号：US4881124A
公开(公告)日：1989-11-14
申请号：US220978
申请日：1988-07-18
申请人： Hisatake Yokouchi , Fumitaka Takahashi , Masayuki Tsuneoka
发明人： Hisatake Yokouchi , Fumitaka Takahashi , Masayuki Tsuneoka
IPC分类号： H04N5/228 , H04N5/235 , H04N5/32 , H05G1/60
CPC分类号： H04N5/3205 , H05G1/60
摘要： An X-ray television apparatus in which an X-ray image which is obtained by an X-ray image intensifier is converted to an electrical signal by a television camera. This electrical signal is converted to a digital signal and stored into an image memory, and the angiographic imaging can be performed due to a differential process of data between two X-ray images. Either one of first, second, and third operating modes in which the scanning periods and the numbers of scanning lines of the television camera differ and a fourth operating mode to obtain the X-ray images by a further low X-ray dose and to simultaneously monitor the X-ray images can be selected. Thus, proper time resolution and spatial resolution according to a desired purpose can be obtained and the beam current of the image pickup tube of the television camera which is optimum in each operating mode is set.
摘要翻译：一种X射线电视设备，其中由X射线图像增强器获得的X射线图像由电视摄像机转换成电信号。该电信号被转换为数字信号并存储到图像存储器中，并且由于两个X射线图像之间的数据的差分处理，可以执行血管造影成像。第一，第二和第三操作模式中的任何一个，其中电视摄像机的扫描周期和扫描线的数量不同，以及通过进一步的低X射线剂量获得X射线图像的第四操作模式，并且同时可以选择监视X射线图像。因此，可以获得根据期望目的的适当的时间分辨率和空间分辨率，并且设置在每个操作模式中最佳的电视摄像机的图像拾取管的束电流。

6. 发明授权

US4809071A Television camera device and x-ray television apparatus using the same 失效
标题翻译：电视摄像机装置和使用其的x射线电视装置
公开(公告)号：US4809071A
公开(公告)日：1989-02-28
申请号：US941641
申请日：1986-12-15
申请人： Hisatake Yokouchi , Masanori Maruyama , Fumitaka Takahashi , Masayuki Tsuneoka
发明人： Hisatake Yokouchi , Masanori Maruyama , Fumitaka Takahashi , Masayuki Tsuneoka
IPC分类号： H01J29/08 , H04N5/32 , H04N5/34 , H01J31/38
CPC分类号： H01J29/08 , H04N5/32
摘要： A television camera device for obtaining an image of high resolution by making the number of scanning lines on the target plate of an image pickup tube about twice larger than that in the television standard system and making the scanning speed of electron beam at the surface of the target plate smaller than that in the television standard system, is disclosed in which an electric field intensity in a region between the target plate and a mesh electrode (namely, the fourth grid electrode) is made greater than or equal to 5.3 KV/cm, to improve the landing characteristics of scanning electron beam, thereby preventing the occurrence of the water fall phenomenon peculiar to a slow scanning operation.
摘要翻译：一种电视照相机装置，用于通过使图像拾取管的目标板上的扫描线数量大于电视标准系统中的扫描线数量的两倍而获得高分辨率的图像，并使电子束的扫描速度在目标板比电视标准系统小的目标板，其中目标板和网格电极（即第四栅极）之间的区域中的电场强度大于或等于5.3KV / cm，以改善扫描电子束的着陆特性，从而防止慢扫描操作特有的水落下现象的发生。

7. 发明授权

US06301331B1 Digital radiography system having an X-ray image intensifier tube 失效
标题翻译：具有X射线图像增强管的数字射线照相系统
公开(公告)号：US06301331B1
公开(公告)日：2001-10-09
申请号：US08400287
申请日：1995-03-03
申请人： Hisatake Yokouchi , Yoichi Onodera , Fumitaka Takahashi , Mitsuru Ikeda , Koichi Koike
发明人： Hisatake Yokouchi , Yoichi Onodera , Fumitaka Takahashi , Mitsuru Ikeda , Koichi Koike
IPC分类号： H05G164
CPC分类号： H05G1/64
摘要： A digital radiography system obtaining x-ray images of a patient body through an X-ray image intensifier tube and a video camera optically coupled with the X-ray image intensifier tube. The diameter of an input imaged size of the X-ray image intensifier tube is ranged from 254 to 457 mm, the diameter of an output image size of the X-ray image intensifier tube is ranged from 50 to 90 mm, and the ratio of the diameter of the output image size against the diameter of the input image size is ranged from 4 to 8.
摘要翻译：一种数字射线照相系统，通过X射线图像增强管和与X射线图像增强管光学耦合的摄像机来获得患者身体的X射线图像。 X射线图像增强管的输入成像尺寸的直径为254〜457mm，X射线图像增强管的输出图像尺寸的直径为50〜90mm，输出图像尺寸的直径与输入图像尺寸的直径在4到8之间。

8. 发明授权

US5600701A X-ray imaging system and method therefor 失效
标题翻译： X射线成像系统及其方法
公开(公告)号：US5600701A
公开(公告)日：1997-02-04
申请号：US240313
申请日：1994-05-10
申请人： Rika Baba , Ken Ueda , Yoichi Onodera , Keiji Umetani , Hisatake Yokouchi , Shigekazu Hara , Tomoharu Kajiyama , Fumitaka Takahashi
发明人： Rika Baba , Ken Ueda , Yoichi Onodera , Keiji Umetani , Hisatake Yokouchi , Shigekazu Hara , Tomoharu Kajiyama , Fumitaka Takahashi
IPC分类号： H04N5/32 , H05G1/60 , H05G1/64
CPC分类号： A61B6/5241 , H04N5/32 , H05G1/60 , A61B6/4291
摘要： In order to image an object larger than a field of view for observation, imaging is effected by dividing it into several times and pictures thus imaged are synthesized to constitute a whole image. In order to image several times, only a detecting unit is moved and an X-ray source is substantially fixed with respect to the object. Images thus obtained include a common part of the object and are joined so that the common part are overlapped on each other. In case where an image pick-up tube is included in the detecting unit, the image pick-up tube is made operable, after a period of time necessary for attenuation of microphonic noise has lapsed, measured from a point of time where the detecting unit has been stopped.
摘要翻译：为了对大于视野的物体进行成像以进行观察，通过将其分割成数次而进行成像，并且合成如此成像的图像以构成整个图像。为了进行多次拍摄，仅移动检测单元，并且X射线源相对于物体基本固定。如此获得的图像包括对象的公共部分并且被连接，使得公共部分彼此重叠。在检测单元中包括图像拾取管的情况下，在从所述检测单元的时间点开始测量的情况下，在经过了麦克风噪声衰减所需的时间段之后，使摄像管可操作已经停止

9. 发明授权

US5402463A Apparatus and method for radiation imaging 失效
标题翻译：辐射成像装置和方法
公开(公告)号：US5402463A
公开(公告)日：1995-03-28
申请号：US109075
申请日：1993-08-19
申请人： Keiji Umetani , Ken Ueda , Yoichi Onodera , Hisatake Yokouchi
发明人： Keiji Umetani , Ken Ueda , Yoichi Onodera , Hisatake Yokouchi
IPC分类号： A61B6/00 , H04N5/32 , H04N7/18 , H05G1/60
CPC分类号： H04N7/18 , H04N5/32 , H05G1/60
摘要： An X-ray imaging apparatus is constructed with a combination of an X-ray image intensifier, a relay optical system, and a video camera with avalanche multiplication camera tube. The video camera is controlled by an image acquisition circuit, a synchronizing signal generation circuit, and an applying voltage control circuit. The applying voltage control circuit for controlling the voltage to be applied to the video camera with avalanche multiplication camera tube controls the applying voltage on the basis of image data in an image memory so that the gray scale level of a detected visible image is corrected.
摘要翻译： X射线成像装置由X射线图像增强器，中继光学系统和具有雪崩倍增照相机管的摄像机的组合构成。摄像机由图像采集电路，同步信号发生电路和施加电压控制电路控制。用于控制施加到具有雪崩倍增照相机的摄像机的电压的施加电压控制电路基于图像存储器中的图像数据来控制施加电压，从而校正检测到的可见图像的灰度级。

10. 发明授权

US4890310A Spectral type radiation imaging system 失效
标题翻译：光谱辐射成像系统
公开(公告)号：US4890310A
公开(公告)日：1989-12-26
申请号：US106345
申请日：1987-10-09
申请人： Keiji Umetani , Ken Ueda , Ryuichi Suzuki , Hisatake Yokouchi
发明人： Keiji Umetani , Ken Ueda , Ryuichi Suzuki , Hisatake Yokouchi
IPC分类号： A61B6/00 , A61B6/03 , G01T1/36 , G03B42/02 , H05G1/60
CPC分类号： A61B6/482 , A61B6/032 , A61B6/4092 , G01T1/36 , H05G1/60
摘要： An x-ray having the energy bandwidth which extends between above and below the absorption edge energy of an element constituting a contrast agent is emitted from an x-ray source as an x-ray to be projected to an object, the x-ray at the higher energy component than the absorption energy of the contrast-agent constituting element is detected by one x-ray detector, the x-ray, having been transmitted through the one x-ray detector, at the lower energy component than the absorption edge energy of the contrast agent constituting element is detected by another x-ray detector, and a subtraction image is obtained by processing the image data from both detectors.
摘要翻译：从构成造影剂的元件的吸收边缘能量的上方和下方延伸的能量带宽的x射线作为x射线从X射线源发射以投影到物体，X射线在通过一个X射线检测器来检测比造影剂构成元件的吸收能量更高的能量分量，x射线已经通过一个x射线检测器以比吸收边缘能量更低的能量分量由另一X射线检测器检测造影剂构成元件，并且通过从两个检测器处理图像数据来获得减影图像。

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