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1. 发明授权

US5600699A Panoramic X-ray imaging apparatus 失效
标题翻译：全景X射线成像仪
公开(公告)号：US5600699A
公开(公告)日：1997-02-04
申请号：US598442
申请日：1996-02-08
申请人： Masakazu Suzuki , Keisuke Mori , Akifumi Tachibana , Kazunari Matoba , Hitoshi Asai , Kazuhisa Miyaguchi
发明人： Masakazu Suzuki , Keisuke Mori , Akifumi Tachibana , Kazunari Matoba , Hitoshi Asai , Kazuhisa Miyaguchi
IPC分类号： A61B6/00 , A61B6/14
CPC分类号： A61B6/4233 , A61B6/14
摘要： The present invention provides a panoramic imaging apparatus capable of obtaining a clear tomographic image even when the rotation speed of a swivel member changes. The clock for driving an FFT CCD device in accordance with the TDI method is set on the basis of the angular speed .omega. of the arm detected by a tachogenerator and a function value f (.theta.) which responds to the rotation angle .theta. of the swivel member detected by an angle detector and used to determine a tomographic orbit. The angle detector is provided with a cam having a shape having been set in accordance with the relationship between the rotation angle .theta. and the film feeding speed at the time of performing X-ray panoramic imaging by using photographic films. The signal of the angular speed .omega. and the signal of the function value f (.theta.) corresponding to the angle .theta. are added by an analog multiplier, and subjected to frequency modulation by a V/F converter to create a TDI clock.
摘要翻译：本发明提供了即使在旋转构件的转速变化时也能够获得清晰的断层图像的全景成像装置。根据TDI方法驱动FFT CCD器件的时钟是基于由测速发电机检测到的臂的角速度ω和基于旋转构件的旋转角度θ的函数值f（θ）来设定的由角度检测器检测并用于确定断层摄影轨道。该角度检测器设有凸轮，该凸轮具有根据通过使用照相胶片进行X射线全景成像时的旋转角度θ和胶片输送速度之间的关系而设定的形状。角速度ω的信号和对应于角度θ的函数值f（θ）的信号由模拟乘法器相加，并由V / F转换器进行频率调制以产生TDI时钟。

2. 发明授权

US5640018A Image detecting device and medical X-ray imaging apparatus 失效
标题翻译：图像检测装置和医用X射线成像装置
公开(公告)号：US5640018A
公开(公告)日：1997-06-17
申请号：US598441
申请日：1996-02-08
申请人： Masakazu Suzuki , Keisuke Mori , Akifumi Tachibana , Kazunari Matoba , Hitoshi Asai , Kazuhisa Miyaguchi , Toshitaka Takeguchi
发明人： Masakazu Suzuki , Keisuke Mori , Akifumi Tachibana , Kazunari Matoba , Hitoshi Asai , Kazuhisa Miyaguchi , Toshitaka Takeguchi
IPC分类号： G02B6/00 , A61B6/00 , A61B6/14 , G01T1/02 , H04N5/225 , H04N5/321 , G01N23/04 , G01T1/20
CPC分类号： A61B6/14 , G01T1/026
摘要： Images are to be satisfactorily continued even at joints of image regions.The surface of a fluorescent screen on which an X-ray image is to be formed is partitioned in the longitudinal direction of a slit, into image regions. From the image regions, image information is guided to CCD imaging elements by optical fiber bundles. Boundaries of the image regions are formed so as to be inclined with respect to the longitudinal direction of a slit.
摘要翻译：即使在图像区域的关节处，图像也将令人满意地继续。将要在其上形成X射线图像的荧光屏的表面在狭缝的纵向方向上分隔成图像区域。从图像区域，通过光纤束将图像信息引导到CCD成像元件。图像区域的边界形成为相对于狭缝的纵向方向倾斜。

3. 发明授权

US5604781A Medical X-ray imaging apparatus 失效
标题翻译：医用X射线成像仪
公开(公告)号：US5604781A
公开(公告)日：1997-02-18
申请号：US598440
申请日：1996-02-08
申请人： Masakazu Suzuki , Keisuke Mori , Akifumi Tachibana , Kazunari Matoba , Hitoshi Asai , Kazuhisa Miyaguchi , Toshitaka Takeguchi
发明人： Masakazu Suzuki , Keisuke Mori , Akifumi Tachibana , Kazunari Matoba , Hitoshi Asai , Kazuhisa Miyaguchi , Toshitaka Takeguchi
IPC分类号： A61B6/00 , H04N5/32 , H05G1/60 , G01N23/04
CPC分类号： H04N5/3205 , A61B6/501 , A61B6/585 , H04N5/361 , H04N5/3656 , H05G1/60 , H04N5/32 , Y10S378/901
摘要： The present invention provides an X-ray tomographic imaging apparatus, wherein image degrading components caused by a CCD sensor (3c) or the like are reduced so as to obtain high-quality X-ray images. After tomographic imaging, dark current noise is eliminated by subtracting dark current correction data from a specific line of data among image data stored in an image memory. Next, sensitivity correction coefficients are prepared on the basis of data obtained when an X-ray beam having nearly uniform intensity distribution enters an X-ray imaging device 3. The image data obtained after dark current correction is then multiplied by the sensitivity correction coefficients. As a result, noise due to sensitivity variations or the like can be eliminated.
摘要翻译：本发明提供一种X射线断层成像装置，其中由CCD传感器（3c）等引起的图像劣化成分减少，以获得高品质的X射线图像。在断层成像之后，通过从存储在图像存储器中的图像数据中的特定数据线减去暗电流校正数据来消除暗电流噪声。接下来，基于在具有几乎均匀的强度分布的X射线束进入X射线成像装置3时获得的数据来准备灵敏度校正系数。然后将在暗电流校正之后获得的图像数据乘以灵敏度校正系数。结果，可以消除由于灵敏度变化等引起的噪声。

4. 发明授权

US5664001A Medical X-ray imaging apparatus 失效
标题翻译：医用X射线成像仪
公开(公告)号：US5664001A
公开(公告)日：1997-09-02
申请号：US621015
申请日：1996-03-22
申请人： Akifumi Tachibana , Keisuke Mori , Masakazu Suzuki , Kazunari Matoba , Hitoshi Asai , Toshitaka Takeguchi , Kazuhisa Miyaguchi
发明人： Akifumi Tachibana , Keisuke Mori , Masakazu Suzuki , Kazunari Matoba , Hitoshi Asai , Toshitaka Takeguchi , Kazuhisa Miyaguchi
IPC分类号： A61B6/00 , A61B6/14
CPC分类号： A61B6/14
摘要： A medical X-ray imaging apparatus is provided, which comprises an X-ray source, an X-ray imaging device for detecting an image of X-rays having passed through a subject and a swivel member for-rotating the X-ray source and the X-ray imaging device around the subject. The X-ray imaging device comprises a CCD sensor for performing the TDI operation and a dosage sensor for detecting X-rays having passed. Dosage signal Y and transfer speed signal X corresponding to the frequency of a false vertical transfer clock are supplied to a divider, and control signal Z is outputted. When control signal Z is supplied to an X-ray control circuit via a delay circuit, the X-ray irradiation dosage of the X-ray source can be feedback-controlled properly.
摘要翻译：本发明提供一种医用X射线成像装置，其包括X射线源，用于检测穿过被检体的X射线的图像的X射线成像装置和用于使X射线源旋转的旋转构件，以及被摄物体周围的X射线成像装置。 X射线成像装置包括用于执行TDI操作的CCD传感器和用于检测已经通过的X射线的剂量传感器。对应于假垂直传送时钟的频率的剂量信号Y和传送速度信号X被提供给分频器，并且输出控制信号Z。当通过延迟电路将控制信号Z提供给X射线控制电路时，可以适当地反馈控制X射线源的X射线照射量。

5. 发明授权

US06042267A X-ray image pickup apparatus for intraoral radiography 失效
标题翻译：用于口腔内摄影的X射线摄像装置
公开(公告)号：US06042267A
公开(公告)日：2000-03-28
申请号：US56935
申请日：1998-04-08
申请人： Tetsuhiko Muraki , Hitoshi Asai , Kazuhisa Miyaguchi , Akifumi Tachibana , Masakazu Suzuki , Susumu Kirimura
发明人： Tetsuhiko Muraki , Hitoshi Asai , Kazuhisa Miyaguchi , Akifumi Tachibana , Masakazu Suzuki , Susumu Kirimura
IPC分类号： A61B6/14 , G01T1/20 , G01T1/29 , G03B42/04 , H04N5/32
CPC分类号： H04N5/32 , G01T1/2018 , G03B42/042 , A61B6/145
摘要： A phosphor, an optical fiber plate containing lead particles, a CCD, and an X-ray shielding member consisting of copper tungsten are sequentially stacked on a substrate from an X-ray incident surface side and sealed in a container made of a light-shielding synthetic resin. The substrate has projecting portions projecting toward the direction of X-ray incident along three sides of the X-ray incident surface. Each of these projecting portions has an overhang portion projecting toward the optical fiber plate. The overhang portions are close to or in contact with corresponding side surfaces of the optical fiber plate so that the optical fiber plate is fixed at a predetermined position. The container has, in the inner surface, convex portions corresponding to the projecting portions, so the substrate is fixed in the container. The output signal from the CCD is sent to an external display unit via a cable extracted from the convex portion of the container through an FPC connector and an FPC provided on a surface opposite to the incident surface.
摘要翻译：含有铅粒子的荧光体，含有铜粒子的CCD和X射线屏蔽部件从X射线入射面侧依次层叠在基板上，并密封在由遮光体合成树脂。基板具有沿着X射线入射面的三面入射的X射线方向突出的突出部。这些突出部分中的每一个具有向光纤板突出的突出部分。突出部分靠近或与光纤板的相应侧表面接触，使得光纤板固定在预定位置。该容器在内表面具有与突出部对应的凸部，因此将基板固定在容器中。来自CCD的输出信号经由通过FPC连接器和设置在与入射面相反的表面上的FPC从容器的凸部抽出的电缆发送到外部显示单元。

6. 发明授权

US6030119A Dental X-ray image detecting apparatus and adaptor for same 失效
标题翻译：牙科X线图像检测装置及适配器
公开(公告)号：US6030119A
公开(公告)日：2000-02-29
申请号：US49740
申请日：1998-03-27
申请人： Akifumi Tachibana , Masakazu Suzuki , Hideki Yoshikawa , Susumu Kirimura , Tetsuhiko Muraki , Hitoshi Asai , Kazuhisa Miyaguchi
发明人： Akifumi Tachibana , Masakazu Suzuki , Hideki Yoshikawa , Susumu Kirimura , Tetsuhiko Muraki , Hitoshi Asai , Kazuhisa Miyaguchi
IPC分类号： A61B6/14 , G01T1/20 , G21K4/00
CPC分类号： A61B6/145 , G01T1/2018
摘要： An X-ray detecting element detects an image produced by X-ray irradiation. An apparatus case capable of being inserted into a mouth has an X-ray irradiation face having different dimensions in two directions perpendicular to each other, and houses the X-ray detecting element. A cable is connected to the apparatus case to transmit a signal from the X-ray detecting element to the outside of the apparatus case. The cable is drawn out from the apparatus case in a direction which is parallel with the X-ray irradiation face and perpendicular to the longitudinal direction of the X-ray irradiation face. According to this configuration, the cable does not obstruct the imaging operation in a course of imaging teeth in a mouth, particularly a molar portion. Therefore, an imaging operation can be easily conducted without giving the subject an unpleasant feeling.
摘要翻译： X射线检测元件检测由X射线照射产生的图像。能够插入到口中的装置壳体具有彼此垂直的两个方向上具有不同尺寸的X射线照射面，并容纳X射线检测元件。电缆连接到装置壳体以将信号从X射线检测元件传输到装置壳体的外部。电缆从与X射线照射面平行且垂直于X射线照射面的长度方向的方向从装置壳体中拉出。根据这种结构，电缆在口腔，特别是摩擦部分的成像牙齿的过程中不妨碍成像操作。因此，可以容易地进行成像操作，而不会给对象带来不愉快的感觉。

7. 发明授权

US5677940A Digital X-ray imaging apparatus 失效
标题翻译：数字X射线成像装置
公开(公告)号：US5677940A
公开(公告)日：1997-10-14
申请号：US618991
申请日：1996-03-20
申请人： Masakazu Suzuki , Keisuke Mori , Akifumi Tachibana , Kazunari Matoba , Koei Yamamoto , Seiichiro Mizuno
发明人： Masakazu Suzuki , Keisuke Mori , Akifumi Tachibana , Kazunari Matoba , Koei Yamamoto , Seiichiro Mizuno
IPC分类号： A61B6/00 , A61B6/06 , A61B6/14 , H04N5/32
CPC分类号： H04N5/32 , A61B6/14
摘要： A digital X-ray imaging apparatus comprises an X-ray generator 6 for generating X-rays toward a subject, an X-ray imaging device 7 for detecting an image of X-rays having passed through the subject, a swivel member 4 and a horizontal movement means 8 provided with the X-ray generator 6 and the X-ray imaging device 7 opposed to each other to relatively move the X-ray generator 6 and the X-ray imaging device 7 with respect to the subject, a CPU 21 for producing a tomographic image in accordance with an imaging signal from the X-ray imaging device 7, frame memories and an image display unit 26 for displaying the tomographic image. The X-ray imaging device 7 includes a MOS image sensor having a plurality of two-dimensional light-receiving pixels. With this configuration, a tomographic image along a given tomographic plane can be produced by a signal X-ray imaging operation, and the imaging sensitivity of the digital X-ray imaging apparatus can be enhanced.
摘要翻译：数字X射线成像装置包括用于向被检体产生X射线的X射线发生器6，用于检测穿过被检体的X射线的图像的X射线成像装置7，旋转构件4和设置有彼此相对的X射线发生器6和X射线摄像装置7的相对于被摄体使X射线发生器6和X射线摄像装置7相对移动的水平移动机构8，CPU21 用于根据来自X射线成像装置7的成像信号，帧存储器和用于显示断层图像的图像显示单元26产生断层图像。 X射线成像装置7包括具有多个二维光接收像素的MOS图像传感器。利用这种配置，可以通过信号X射线成像操作来产生沿着给定的断层摄影平面的断层图像，并且可以提高数字X射线成像装置的成像灵敏度。

8. 发明授权

US5519751A Medical X-ray image processing apparatus 失效
标题翻译：医用X射线图像处理装置
公开(公告)号：US5519751A
公开(公告)日：1996-05-21
申请号：US435274
申请日：1995-05-05
申请人： Koei Yamamoto , Kazuhisa Miyaguchi , Keisuke Mori , Akifumi Tachibana , Takao Makino
发明人： Koei Yamamoto , Kazuhisa Miyaguchi , Keisuke Mori , Akifumi Tachibana , Takao Makino
IPC分类号： A61B6/00 , B82B1/00 , G01T1/20 , H04N5/32 , A61B6/14
CPC分类号： G01T1/2018 , H04N5/32
摘要： A medical X-ray image processing apparatus, comprising an X-ray sensor which converts an image of X-rays penetrated an object into an electric signal using a solid-state image sensor and a data processor which processes the electric signal to generate an electric image signal corresponding to the X-ray image, compares the data of each picture element derived from the above-mentioned solid-state image sensor with the data of picture elements being adjacent to the picture element and present within a certain region, and corrects the data of the picture element referring to the data of the above-mentioned adjacent picture elements only when the data of the picture element is exceptionally different from the data of the adjacent picture elements by a predetermined reference value or more. Consequently, the apparatus eliminates only the exceptionally large noise, such as spike noise caused by the X-rays having directly reached the solid-state image sensor and also caused by the secondary X-rays, thereby being capable of generating images having high resolution.
摘要翻译：一种医用X射线图像处理装置，包括：X射线传感器，其使用固态图像传感器和数据处理器将X射线的图像转换成电信号，所述X射线传感器处理所述电信号以产生电对应于X射线图像的图像信号将从上述固态图像传感器导出的每个图像元素的数据与与图像元素相邻并且存在于某一区域内的图像元素的数据进行比较，并校正只有当图像元素的数据与相邻图像元素的数据异常地超过预定参考值或更大时才参考上述相邻图像元素的数据。因此，该装置仅消除例如由直接到达固态图像传感器的X射线引起的尖峰噪声并且也由次级X射线引起的特别大的噪声，从而能够产生高分辨率的图像。

9. 发明授权

US6118842A X-ray imaging apparatus 失效
标题翻译： X射线成像装置
公开(公告)号：US6118842A
公开(公告)日：2000-09-12
申请号：US987218
申请日：1997-12-09
申请人： Yoshinori Arai , Keisuke Mori , Masakazu Suzuki , Akifumi Tachibana
发明人： Yoshinori Arai , Keisuke Mori , Masakazu Suzuki , Akifumi Tachibana
IPC分类号： A61B6/03 , A61B6/06 , A61B6/14
CPC分类号： A61B6/032 , A61B6/14 , A61B6/06 , Y10S378/901
摘要： An object of the invention is to provide a dual-purpose X-ray imaging apparatus capable of partial CT imaging in addition to panoramic tomographic imaging. Another object of the invention is to provide a dedicated partial X-ray CT imaging apparatus. An X-ray imaging apparatus comprises an X-ray source 28 which irradiates an object with X-rays; an image sensor 38 which detects X-rays having passed through the object; a support arm 24 which supports the X-ray source 28 and the image sensor 38; and a plurality of motors for moving the support arm 24. These motors move the X-ray source 28 and image sensor 38 along a CT image formation locus in the CT mode, and the X-ray source 28 and the image sensor 38 along a panoramic image formation locus in the case of the panorama mode.
摘要翻译：本发明的一个目的是提供一种能够进行全景断层摄影成像的部分CT成像的双用途X射线成像装置。本发明的另一个目的是提供专用的部分X射线CT成像装置。 X射线成像装置包括用X射线照射物体的X射线源28; 检测穿过物体的X射线的图像传感器38; 支撑X射线源28和图像传感器38的支撑臂24; 以及用于移动支撑臂24的多个电动机。这些电动机沿CT模式沿着CT成像轨迹移动X射线源28和图像传感器38，并且沿着X射线源28和图像传感器38沿着全景图像形成轨迹在全景模式的情况下。

10. 发明授权

US5644650A Method and apparatus for digitally displaying an enhanced X-ray image 失效
标题翻译：用于数字显示增强型X射线图像的方法和装置
公开(公告)号：US5644650A
公开(公告)日：1997-07-01
申请号：US397581
申请日：1995-03-02
申请人： Masakazu Suzuki , Keisuke Mori , Akifumi Tachibana
发明人： Masakazu Suzuki , Keisuke Mori , Akifumi Tachibana
IPC分类号： A61B6/00 , A61B6/14 , G06T1/00 , G06T5/00 , G06T5/40 , G09G5/00 , G09G5/36 , H04N5/32 , G06K9/36
CPC分类号： G06T5/008 , G06T2207/10116 , H04N5/32
摘要： An X-ray image displaying apparatus including a CPU, a video memory for storing image data, palette registers to which conducts the gradient conversion on image data stored in the video memory, DA converters for converting image data output from the palette registers into a color video signal, a monitoring device for receiving the color video signal and color-displaying an X-ray image, and a video printer for displaying the image on a recording medium. An interested region width setting switch and an interested region position setting switch are connected to a keyboard. The gradient characteristics of the palette registers are set to be .gamma.>1 in an interested region, and to be y=1 in an uninterested region.
摘要翻译：一种X射线图像显示装置，包括CPU，用于存储图像数据的视频存储器，对存储在视频存储器中的图像数据进行梯度变换的调色板寄存器，用于将从调色板寄存器输出的图像数据转换为颜色的DA转换器视频信号，用于接收彩色视频信号和彩色显示X射线图像的监视装置，以及用于在记录介质上显示图像的视频打印机。感兴趣的区域宽度设置开关和感兴趣区域位置设置开关连接到键盘。调色板寄存器的梯度特性在感兴趣区域设置为gamma> 1，在不感兴趣的区域中设置为y = 1。

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