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61. 发明授权

US5845269A Fuzzy control system, particularly for dose rate control in an X-ray diagnostics apparatus 失效
标题翻译：模糊控制系统，特别是用于X射线诊断装置中的剂量率控制
公开(公告)号：US5845269A
公开(公告)日：1998-12-01
申请号：US714160
申请日：1996-09-23
申请人： Detlef Kortge , Michael Franz
发明人： Detlef Kortge , Michael Franz
IPC分类号： H05G1/26 , H05G1/36 , G06F9/44
CPC分类号： H05G1/36 , H05G1/26 , Y10S706/903 , Y10S706/924
摘要： A fuzzy control system, particularly for dose rate control in an X-ray diagnostics apparatus, such a control system converting input signals into output signals. A first and a second individual module are provided, whereby respectively at least two input signals can be supplied to the first and to the second individual module for generating an output signal. Compared to a fuzzy control system that does not comprise these individual modules, the rule base becomes smaller, only input conditions that have influence on the individual module need be provided with rules, so that a simple check of the rules for completeness is assured.
摘要翻译： PCT No.PCT / DE95 / 00363 Sec。 371日期1996年9月23日 102（e）1996年9月23日PCT 1995年3月15日PCT PCT。公开号WO95 / 25990 日期1995年9月28日一种模糊控制系统，特别是用于X射线诊断装置中的剂量率控制的控制系统，将输入信号转换为输出信号。提供第一和第二单独模块，由此可以分别向第一和第二单独模块提供至少两个输入信号以产生输出信号。与不包含这些单个模块的模糊控制系统相比，规则库变小，仅对单个模块有影响的输入条件需要提供规则，以便确保完整性规则的简单检查。

62. 发明授权

US5809106A X-ray apparatus having a control device for preventing damaging X-ray emissions 失效
标题翻译：具有用于防止有害的X射线发射的控制装置的X射线装置
公开(公告)号：US5809106A
公开(公告)日：1998-09-15
申请号：US808857
申请日：1997-02-28
申请人： Koichi Kitade , Katsuhiro Ono
发明人： Koichi Kitade , Katsuhiro Ono
IPC分类号： G21K5/08 , H01J35/10 , H05G1/26 , H05G1/30 , H05G1/36 , H05G1/54 , H05G1/66 , H05G1/00
CPC分类号： H05G1/66 , H01J35/101 , H05G1/26 , H05G1/36 , H01J2235/106
摘要： In an X-ray tube with a hydrodynamic slide bearing, an electron beam is caused to strike the focal point track area F on its rotary anode, which then emits X rays. An X-ray emission control device that sets the conditions for emitting the X rays stores as data the rises and drops in the temperature at the electron beam incident point and the other part on the focal point track surface of the anode. On the basis of the data, the input permission or inhibition conditions for the X-ray tube at every moment are calculated and the resulting conditions are displayed on a display unit. As a result, it is possible to perform a computing process in advance to determine whether or not X rays can be emitted under specific conditions without a permitting the rotary anode in the X-ray tube with a hydrodynamic slide bearing to melt and then display the results, thereby enabling a safe, efficient photographing control.
摘要翻译：在具有流体动力滑动轴承的X射线管中，使电子束撞击其旋转阳极上的焦点轨迹区域F，然后发射X射线。设置用于发射X射线的条件的X射线发射控制装置作为数据存储电子束入射点的温度和阳极的焦点轨迹表面上的另一部分的上升和下降。基于该数据，计算出每一时刻X射线管的输入许可或禁止条件，并将所得条件显示在显示单元上。结果，可以预先执行计算处理以确定在特定条件下是否能够在具有流体动力滑动轴承的X射线管中的旋转阳极熔化的情况下能够在特定条件下发射X射线，然后显示结果，从而实现安全，有效的拍摄控制。

63. 发明授权

US5533087A X-ray imaging system including brightness control 失效
标题翻译： X射线成像系统包括亮度控制
公开(公告)号：US5533087A
公开(公告)日：1996-07-02
申请号：US314037
申请日：1994-09-28
申请人： Rudolph M. Snoeren
发明人： Rudolph M. Snoeren
IPC分类号： A61B6/00 , H04N5/32 , H05G1/36 , H05G1/64
CPC分类号： H05G1/64 , H05G1/36
摘要： X-ray imaging system is arranged such that the exit screen of the X-ray image intensifier can be imaged, via a beam deflection element, on a pick-up device (CCD sensor) and on a photodiode for automatic dose control or exposure timing. Because the beam deflection element (prism, partly transparent cube or mirror) covers the entire cross-section of the exit screen, a uniformly illuminated exit screen is imaged on the pick-up device as a uniformly illuminated surface. When the pick-up device is arranged transversely of the prolongation of the X-ray image intensifier and the photodiode is arranged in the prolongation of the X-ray image intensifier, a compact system is obtained. When use is made of an anamorphic system comprising two prisms, a part of the light beam can be reflected to the photodiode from a surface of a prism. More accurate exposure timing can be achieved by measurement of the light reflected by the CCD sensors.
摘要翻译： X射线成像系统被布置成使得X射线图像增强器的出射屏可以通过光束偏转元件在拾取装置（CCD传感器）和用于自动剂量控制或曝光定时的光电二极管上成像。由于光束偏转元件（棱镜，部分透明立方体或反射镜）覆盖出射屏幕的整个横截面，所以均匀照射的出射屏幕作为均匀照射的表面被成像在拾取装置上。当拾取装置横置于X射线图像增强器的延长部分并且在X射线图像增强器的延长中设置光电二极管时，获得紧凑的系统。当使用包括两个棱镜的变形系统时，一部分光束可以从棱镜的表面反射到光电二极管。通过测量由CCD传感器反射的光可以获得更准确的曝光时间。

64. 发明授权

US5479468A X-ray diagnostics installation 失效
标题翻译： X光诊断安装
公开(公告)号：US5479468A
公开(公告)日：1995-12-26
申请号：US350677
申请日：1994-12-07
申请人： Heinz Horbaschek , Anton Nekovar
发明人： Heinz Horbaschek , Anton Nekovar
IPC分类号： H04N5/32 , H05G1/36 , H05G1/64
CPC分类号： H05G1/64 , H04N5/32 , H05G1/36
摘要： An x-ray diagnostics installation has an operating voltage generator, an x-ray tube, an x-ray image intensifier, a video camera, a video amplifier having controllable gain, an integration circuit and a control circuit that acts on the operating voltage for dose rate control. The x-ray diagnostics installation is fashioned such that the control circuit is connected to the video amplifier and to the integration circuit and controls these components such that the gain of the video amplifier is raised when a limit value of the dose rate control is reached, with parameters of the integration circuit being simultaneously modified.
摘要翻译： X射线诊断装置具有工作电压发生器，X射线管，x射线图像增强器，摄像机，具有可控增益的视频放大器，集成电路和控制电路，其作用于工作电压剂量率控制。 X射线诊断装置被设计成使得控制电路连接到视频放大器和积分电路并控制这些组件，使得当达到剂量率控制的极限值时视频放大器的增益被提高，同时对积分电路的参数进行修改。

65. 发明授权

US5179582A Exposure control circuit for X-ray generation 失效
标题翻译：用于X射线产生的曝光控制电路
公开(公告)号：US5179582A
公开(公告)日：1993-01-12
申请号：US871233
申请日：1992-04-20
申请人： Thomas P. Keller , William C. Greenway
发明人： Thomas P. Keller , William C. Greenway
IPC分类号： H05G1/36 , H05G1/38
CPC分类号： H05G1/38 , H05G1/36
摘要： An exposure control circuit captures an X-ray generator exposure time for a master exposure and replicates that time for subsequent exposures in a series. In one preferred circuit an read counter bank counts down clock pulses during the master exposure time, and then this count is held and is used by a write counter bank which counts up during subsequent exposures. A control circuit controls loading an enabling functions of the read and write counters. For the subsequent exposures, an output relay circuit terminates the X-ray generator exposure when the write counter bank reaches a predetermined count. This arrangement is used favorably with digital subtractive angiography (DSA).
摘要翻译：曝光控制电路捕获主曝光的X射线发生器曝光时间，并将该时间复制为一系列后续曝光。在一个优选的电路中，读计数器组在主曝光时间期间对时钟脉冲进行计数，然后该计数被保持，并由随后曝光期间向上计数的写计数器组使用。控制电路控制加载读写计数器的启用功能。对于随后的曝光，当写计数器组达到预定计数时，输出继电器电路终止X射线发生器曝光。这种布置有利于数字减影血管造影（DSA）。

66. 发明授权

US4953189A X-ray radiography method and system 失效
标题翻译： X射线摄影方法和系统
公开(公告)号：US4953189A
公开(公告)日：1990-08-28
申请号：US256846
申请日：1988-10-12
申请人： Shih-Ping Wang
发明人： Shih-Ping Wang
IPC分类号： A61B6/03 , G21K1/04 , H05G1/36 , H05G1/44 , H05G1/60
CPC分类号： A61B6/032 , A61B6/06 , A61B6/4035 , A61B6/544 , G21K1/04 , G21K1/046 , H05G1/36 , H05G1/44 , H05G1/60
摘要： A method and device for producing flux equalized x-ray images for medical radiography through the use of a scanning fan shaped x-ray beam and a feedback control system which regulates the beam intensity at a multiple number of points along the fan beam to compensate for the x-ray attenuation variations of the patient.
摘要翻译：一种用于通过使用扫描扇形X射线束产生用于医学放射照相的磁通均衡x射线图像的方法和装置，以及反馈控制系统，其调节沿着扇形束的多个点处的光束强度以补偿患者的x射线衰减变化。

67. 发明授权

US4797905A X-ray generator incorporating dose rate control 失效
标题翻译：纳入剂量率控制的X射线发生器
公开(公告)号：US4797905A
公开(公告)日：1989-01-10
申请号：US1305
申请日：1987-01-08
申请人： Rudolf Ochmann , Robert H. Zimmermann
发明人： Rudolf Ochmann , Robert H. Zimmermann
IPC分类号： G21K1/00 , G21K5/02 , G21K5/04 , H05G1/30 , H05G1/36 , H05G1/44 , H05G1/46 , H05G1/34
CPC分类号： H05G1/44 , H05G1/36 , H05G1/46
摘要： The invention relates to an X-ray generator including a controller for the dose rate. In order to enable universal use of this controller for different types of examination, use is made of a sampling controller in the form of a microprocessor system. There are provided memories in which the sampling frequency and the adjustment functions are stored for the various types of examination as well as the programs on the basis of which the sampling controller calculates the adjustment values for the various types of examination.
摘要翻译：本发明涉及一种包括用于剂量率的控制器的X射线发生器。为了能够将该控制器通用于不同类型的检查，使用微处理器系统形式的采样控制器。提供存储器，其中存储用于各种类型的检查的采样频率和调整功能以及采样控制器基于该程序计算各种类型的检查的调整值的程序。

68. 发明授权

US4715056A Apparatus for slit radiography 失效
标题翻译：狭缝摄影装置
公开(公告)号：US4715056A
公开(公告)日：1987-12-22
申请号：US713198
申请日：1985-03-18
申请人： Hugo Vlasbloem , Simon Duinker
发明人： Hugo Vlasbloem , Simon Duinker
IPC分类号： G01N23/04 , A61B6/00 , A61B6/03 , A61B6/06 , G03B42/02 , G21K1/04 , G21K3/00 , H05G1/30 , H05G1/36 , H05G1/60 , H05G1/64
CPC分类号： A61B6/032 , A61B6/06 , A61B6/4035 , G21K1/04 , G21K1/043 , H05G1/36 , H05G1/60 , H05G1/64
摘要： An apparatus for slit radiography comprising an X-ray source, an X-ray detector positioned behind a body being irradiated, said detector collecting the radiation passed through the body, and a slit diaphragm placed between the X-ray source and the body being irradiated, through which diaphragm there is formed a planar X-ray fan beam, while for obtaining a complete X-ray shadow image of the desired part of the body at least the fan beam performs a scanning movement. There are provided detection means coacting with the X-ray detector and comprising a plurality of sections juxtaposed in the longitudinal direction of the strip-like portion of the X-ray detector irradiated through the slit diaphragm, each section being adapted to produce an electric signal depending upon the radiation impinging instantaneously on the associated section of the X-ray detector. The slit diaphragm comprises a plurality of sections juxtaposed in the longitudinal direction of the slit, each coacting with at least one controllable attenuation element and corresponding with the number of sections of the detection means, and is provided with control means which during the scanning movement instantaneously and simultaneously adjust the quantity of X-rays passed per section of the diaphragm, under the control of the electric signals generated by the detection means.

69. 发明授权

US4703496A Automatic x-ray image brightness control 失效
标题翻译：自动X射线图像亮度控制
公开(公告)号：US4703496A
公开(公告)日：1987-10-27
申请号：US8089
申请日：1987-01-22
申请人： Thomas V. Meccariello , Gary F. Relihan
发明人： Thomas V. Meccariello , Gary F. Relihan
IPC分类号： H05G1/64 , A61B6/00 , G01N23/04 , H04N5/32 , H04N7/18 , H05G1/36 , H05G1/46 , H05G1/60
CPC分类号： H05G1/46 , H04N5/32 , H05G1/36 , H05G1/60
摘要： A voltage signal proportional to the brightness of an x-ray image is derived. In a mA loop the ratio of a reference voltage to brightness is determined. If the brightness ratio does not equal 1 it causes the x-ray tube current controller to adjust current (mA) to eliminate the error. A command proportionate to the ratio is stored until the next image frame. In a kV loop a ratio of the last mA command and a set limit for mA is taken. This error ratio is multiplied by the brightness ratio to provide a kV control ratio indicative of how much of the brightness error the kV loop is obliged to correct. The kV control ratio is corrected for nonlinearity between kV change and brightness change and the resulting command is used to adjust the kV applied to the x-ray tube anode. In a video gain control loop a ratio is taken between the stored last brightness ratio or mA command and maximum mA command limit and the brightness change resulting from the last kV control command is ratioed to the maximum brightness factor limit. The result of multiplying the last two mentioned ratios and the brightness ratio is the new video gain (VG) control signal. The VG signal is used to adjust the f-stop of the video camera and the electronic gain to change brightness.
摘要翻译：导出与X射线图像的亮度成比例的电压信号。在mA环路中，确定参考电压与亮度的比值。如果亮度比不等于1，则X射线管电流控制器调节电流（mA）以消除误差。与比例成比例的命令被存储直到下一个图像帧。在一个kV环路中，采用最后的mA指令和mA的设定极限的比例。该误差比乘以亮度比，以提供kV控制比，其指示kV环必须校正多少亮度误差。对kV变化和亮度变化之间的非线性校正了kV控制比，并且所得到的命令用于调整施加到x射线管阳极的kV。在视频增益控制环路中，存储的最后一个亮度比或mA指令与最大mA指令极限之间取一个比例，并且由最后一个kV控制指令得到的亮度变化与最大亮度因子限制相比。乘以最后两个比例和亮度比的结果是新的视频增益（VG）控制信号。 VG信号用于调整摄像机的f-stop和电子增益以改变亮度。

70. 发明授权

US4677652A Apparatus for slit radiography 失效
标题翻译：狭缝摄影装置
公开(公告)号：US4677652A
公开(公告)日：1987-06-30
申请号：US729617
申请日：1985-05-02
申请人： Simon Duinker , Hugo Vlasbloem
发明人： Simon Duinker , Hugo Vlasbloem
IPC分类号： G03B42/02 , A61B6/00 , A61B6/06 , G01N23/04 , G21K1/04 , H04N5/32 , H05G1/36
CPC分类号： G21K1/043 , A61B6/06 , G21K1/04 , H05G1/36
摘要： There is disclosed an improved control circuit for a slit radiographic apparatus wherein the slit radiographic apparatus is comprised of an X-ray source adapted to scan a body to be radiographed through a slit diaphragm with a planar fan beam wherein the slit diaphragm is divided into a plurality of attenuating sections each associated with a controllable X-ray attenuating member and wherein there is provided a detection assembly for detecting the intensity of the radiation having passed through the body and divided into sections corresponding to attenuating sections of the slit diaphragm wherein each X-ray attenuating member is controlled by the control circuit including an energizing circuit and a comparison circuit for each attenuating member of the slit diaphragm whereby the comparison circuit compares an output signal of an associated section of the detection means to a reference signal to form an output coupled to the energizing circuit to control the attenuating member of a respective attenuating section of the slit diaphragm so that the difference between the output signal of the section of the detection assembly and the reference signal continously pursues zero value.
摘要翻译：公开了一种用于狭缝放射线照相设备的改进的控制电路，其中狭缝放射线照相设备包括适于通过平面扇形光束扫描通过狭缝光阑进行射线照相的身体的X射线源，其中狭缝光阑被分成多个衰减部分，其各自与可控X射线衰减部件相关联，并且其中设置有检测组件，用于检测已经穿过所述主体的辐射的强度，并被分成对应于狭缝光阑的衰减部分的部分，射线衰减构件由包括用于狭缝光阑的每个衰减构件的激励电路和比较电路的控制电路控制，由此比较电路将检测装置的相关部分的输出信号与参考信号进行比较，以形成输出耦合到激励电路以控制其中的衰减构件使得狭缝光阑的输出信号与参考信号之间的差继续为零值。

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