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1.发明授权Systems, methods and apparatus for adaptive cancellation of induced row noise in X-ray detector 有权用于X射线探测器中感应行噪声自适应消除的系统，方法和装置公开(公告)号：US07408168B1
公开(公告)日：2008-08-05
申请号：US11738440
申请日：2007-04-20
IPC分类号： G01T25/00
CPC分类号： G01T1/29
摘要： Systems, methods and apparatus are provided through which in some embodiments the line time of an X-Ray detector is dynamically selected so as to nullify an aliased interference signal. The frequency of a noise signal generated by a source external to the digital X-ray detector is determined and, based on the determined frequency, the line time of the digital X-ray is adjusted so as to compensate for the interfering noise. The frequency of the noise can be directly determined from an electromagnetic interference (EMI) sensor or derived through analysis of the power spectrum of the noise signal.
摘要翻译： 提供了系统，方法和装置，在一些实施例中，动态地选择X射线检测器的线路时间，以便消除混叠的干扰信号。 确定由数字X射线检测器外部的源产生的噪声信号的频率，并且基于确定的频率来调整数字X射线的行时间以补偿干扰噪声。 噪声的频率可以直接由电磁干扰（EMI）传感器确定，或通过分析噪声信号的功率谱得出。
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2.发明申请Method and means for reducing electromagnetic noise induced in X-ray detectors 有权降低X射线探测器感应电磁噪声的方法和装置公开(公告)号：US20050254624A1
公开(公告)日：2005-11-17
申请号：US10846971
申请日：2004-05-14
申请人： Jeffrey Kautzer , Richard Cronce , Olgun Kukrer
发明人： Jeffrey Kautzer , Richard Cronce , Olgun Kukrer
IPC分类号： G01T1/20 , A61B6/00 , A61B6/12 , G01T1/24 , G06T11/00 , H01L27/14 , H01L31/09 , H04N5/32 , H04N5/357 , H05G1/26
CPC分类号： A61B6/547 , A61B6/00 , A61B6/12 , A61B6/4233 , H04N5/32 , H04N5/3577
摘要： The present invention relates to a system and method by which the magnitude of an interfering electrical and/or magnetic field may be sampled locally (in the X-ray detector for example) and reduced or eliminated. More specifically, embodiments comprise a system and method by which an interfering field may be sampled within the same orientation as the X-ray detector panel, and then subtracted out of each respective element sample.
摘要翻译： 本发明涉及一种系统和方法，通过该系统和方法可以局部地（例如在X射线检测器中）对干扰电场和/或磁场的大小进行采样并减少或消除。 更具体地，实施例包括系统和方法，通过该系统和方法可以在与X射线检测器面板相同的取向下对干扰场采样，然后从每个相应的元件样本中减去。
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3.发明申请Sampling methods and systems that shorten readout time and reduce lag in amorphous silicon flat panel x-ray detectors 失效采样方法和系统缩短了非晶硅平板x射线探测器的读出时间并减少滞后公开(公告)号：US20050040352A1
公开(公告)日：2005-02-24
申请号：US10646107
申请日：2003-08-22
CPC分类号： G01T1/2928
摘要： Sampling methods and systems that shorten readout time and reduce lag in amorphous silicon flat panel x-ray detectors are described. Embodiments comprise: (a) activating a reset switch to discharge any residual signal being held in a feedback capacitor; (b) deactivating the reset switch; (c) activating a field effect transistor; (d) sampling an electrical signal from the amorphous silicon flat panel x-ray detector, while the field effect transistor is activated; (e) activating a reset switch, after the electrical signal has been sampled and while the field effect transistor is still activated, to discharge any residual signal being held in the feedback capacitor; (f) deactivating the field effect transistor, while the reset switch is still activated; (g) deactivating the reset switch; and (h) repeating steps (c)-(g) as necessary to obtain a predetermined radiographic image.
摘要翻译： 描述了缩短非晶硅平板X射线检测器的读出时间和减少滞后的采样方法和系统。 实施例包括：（a）激活复位开关以放电保持在反馈电容器中的任何残留信号; （b）禁用复位开关; （c）激活场效应晶体管; （d）在场效应晶体管被激活的同时，从非晶硅平板x射线检测器取样电信号; （e）在电信号被采样之后并且当场效应晶体管仍被激活时激活复位开关，以放电保持在反馈电容器中的任何残留信号; （f）当复位开关仍然被激活时，去激活场效应晶体管; （g）停用复位开关; 和（h）根据需要重复步骤（c） - （g）以获得预定的放射照相图像。
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4.发明授权Sampling methods and systems that shorten readout time and reduce lag in amorphous silicon flat panel x-ray detectors 失效采样方法和系统缩短了非晶硅平板x射线探测器的读出时间并减少滞后公开(公告)号：US07005663B2
公开(公告)日：2006-02-28
申请号：US10646107
申请日：2003-08-22
CPC分类号： G01T1/2928
摘要： Sampling methods and systems that shorten readout time and reduce lag in amorphous silicon flat panel x-ray detectors are described. Embodiments comprise: (a) activating a reset switch to discharge any residual signal being held in a feedback capacitor; (b) deactivating the reset switch; (c) activating a field effect transistor; (d) sampling an electrical signal from the amorphous silicon flat panel x-ray detector, while the field effect transistor is activated; (e) activating a reset switch, after the electrical signal has been sampled and while the field effect transistor is still activated, to discharge any residual signal being held in the feedback capacitor; (f) deactivating the field effect transistor, while the reset switch is still activated; (g) deactivating the reset switch; and (h) repeating steps (c)–(g) as necessary to obtain a predetermined radiographic image.
摘要翻译： 描述了缩短非晶硅平板X射线检测器的读出时间和减少滞后的采样方法和系统。 实施例包括：（a）激活复位开关以放电保持在反馈电容器中的任何残留信号; （b）禁用复位开关; （c）激活场效应晶体管; （d）在场效应晶体管被激活的同时，从非晶硅平板x射线检测器取样电信号; （e）在电信号被采样之后并且当场效应晶体管仍被激活时激活复位开关，以放电保持在反馈电容器中的任何残留信号; （f）当复位开关仍然被激活时，去激活场效应晶体管; （g）停用复位开关; 和（h）根据需要重复步骤（c） - （g）以获得预定的放射照相图像。
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5.发明申请Method and appartus for improved data acquisition using a solid state digital X-ray detector 有权使用固态数字X射线检测器改进数据采集的方法和应用公开(公告)号：US20050173642A1
公开(公告)日：2005-08-11
申请号：US10841010
申请日：2004-05-07
申请人： Scott Petrick , Alan Blomeyer , Jingyi Liang , Richard Cronce
发明人： Scott Petrick , Alan Blomeyer , Jingyi Liang , Richard Cronce
IPC分类号： G01T1/20 , A61B6/00 , G01J1/00 , G01N23/04 , G01T1/24 , G01T1/29 , H01L27/14 , H01L27/146 , H04N5/32 , H04N5/345 , H04N5/369
CPC分类号： H04N5/32 , H01L27/14658 , H04N5/3415
摘要： Certain embodiments provide a method and system for improved x-ray image data acquisition using a digital x-ray detector. The method and system include defining groups of scan lines in a detector, associating data lines in the detector with the groups of scan lines, and reading image data from the groups of scan lines using the associated data lines. The scan lines are connected with a plurality of pixels. A region of interest may be defined in the detector. The pixels obtain image data regarding the region of interest. The image data may be read from at least one scan line in each of the groups of scan lines using the associated data lines. Alternatively, the image data may be read from alternating groups of the scan lines using the associated data lines. Image data may also be binned from adjacent pixels read using a plurality of data lines.
摘要翻译： 某些实施例提供了一种使用数字X射线检测器改进X射线图像数据采集的方法和系统。 该方法和系统包括在检测器中定义扫描线组，将检测器中的数据线与扫描线组相关联，并使用相关联的数据线从扫描线组读取图像数据。 扫描线与多个像素连接。 感兴趣区域可以在检测器中定义。 像素获得关于感兴趣区域的图像数据。 可以使用相关联的数据线从每组扫描线中的至少一条扫描线读取图像数据。 或者，可以使用相关联的数据线从扫描线的交替组读取图像数据。 也可以使用多条数据线从相邻像素读取图像数据。
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公开(公告)号：US20050017187A1
公开(公告)日：2005-01-27
申请号：US10604454
申请日：2003-07-22
申请人： Scott Petrick , Alan Blomeyer , Richard Cronce , Jeffrey Kautzer
发明人： Scott Petrick , Alan Blomeyer , Richard Cronce , Jeffrey Kautzer
摘要： A method of maintaining an initial bias of an x-ray detector (12) includes setting the initial bias of the x-ray detector. Operating state of a readout circuit (30) is altered. A photodiode common contact voltage potential is adjusted by a data line drift amount to approximately maintain the initial bias. An x-ray imaging system (10) includes a detector (12) that has multiple pixels, multiple data lines (50), and a common contact (62) that is at a common contact voltage potential. The readout circuit (30) is electrically coupled to the data lines (50) and has a multiple power states. A controller (36) is electrically coupled to the readout circuit (30), detects a change in operating state of the readout circuit (30), and adjusts voltage potential of the common contact (62) in response to the change in operating state.
摘要翻译： 保持x射线检测器（12）的初始偏置的方法包括设置x射线检测器的初始偏置。 改变读出电路（30）的工作状态。 通过数据线漂移量来调节光电二极管公共接触电压电位，以大致维持初始偏压。 X射线成像系统（10）包括具有多个像素的检测器（12），多个数据线（50）和处于公共接触电压电位的公共接触（62）。 读出电路（30）电耦合到数据线（50）并且具有多个功率状态。 控制器（36）电耦合到读出电路（30），检测读出电路（30）的工作状态的改变，并且响应于操作状态的改变来调节公共触头（62）的电压电位。
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