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    Multiple mode digital X-ray imaging system
    5.
    发明授权
    Multiple mode digital X-ray imaging system 有权
    多模数字X射线成像系统

    公开(公告)号：US06424750B1

    公开(公告)日：2002-07-23

    申请号：US09309725

    申请日：1999-05-11

    申请人： Richard E. Colbeth ,  John M. Pavkovich ,  Edward J. Seppi ,  Edward G. Shapiro

    发明人： Richard E. Colbeth ,  John M. Pavkovich ,  Edward J. Seppi ,  Edward G. Shapiro

    IPC分类号： G06T500

    CPC分类号： H04N5/347 ,  H04N5/32 ,  H04N5/367

    摘要： A multiple mode digital X-ray imaging system providing for preprocessing “binning” of analog pixel signals from a detector array by selectively summing, within the detector array, adjacent pixel charges on a row-by-row basis and selectively summing, within detector array readout circuits, the previously summed pixel charges (by rows) on a column-by-column basis. An array, or mapping, of “defective pixel” flags is used to identify defective pixels within the detector array, with such flags being added to, or inserted into, the incoming data stream for dynamic processing along with the incoming pixel data. A buffer and filter is used to perform still image capture during the radiographic mode of operation and to recursively filter incoming data frames during the fluoroscopic mode of operation by summing a scaled amount of pixel data from prior data frames with a scaled amount of incoming pixel data from the present data frame.

    摘要翻译： 一种多模式数字X射线成像系统，其通过在检测器阵列内以逐行为基础选择性地相加相邻像素电荷并在检测器阵列内进行选择性求和，来提供从检测器阵列“模拟”模拟像素信号 读出电路，先前相加的像素电荷（按行）逐列。 使用“缺陷像素”标志的阵列或映射来识别检测器阵列内的有缺陷的像素，其中这些标记被附加到输入数据流中或插入到输入数据流中，以便与输入像素数据一起进行动态处理。 使用缓冲器和滤波器在放射线照相操作模式下执行静态图像捕获，并且在荧光镜操作模式期间递归滤波输入数据帧，通过将来自先前数据帧的像素数据的缩放量与输入像素数据的标度量相加 从当前的数据帧。

    Multiple mode digital X-ray imaging system
    6.
    发明授权
    Multiple mode digital X-ray imaging system 有权
    多模数字X射线成像系统

    公开(公告)号：US06744912B2

    公开(公告)日：2004-06-01

    申请号：US10167092

    申请日：2002-06-10

    申请人： Richard E. Colbeth ,  John M. Pavkovich ,  Edward J. Seppi ,  Edward G. Shapiro

    发明人： Richard E. Colbeth ,  John M. Pavkovich ,  Edward J. Seppi ,  Edward G. Shapiro

    IPC分类号： G06T500

    CPC分类号： H04N5/367 ,  H04N5/32 ,  H04N5/335 ,  H04N5/347

    摘要： A multiple mode digital X-ray imaging system providing for preprocessing “binning” of analog pixel signals from a detector array by selectively summing, within the detector array, adjacent pixel charges on a row-by-row basis and selectively summing, within detector array readout circuits, the previously summed pixel charges (by rows) on a column-by-column basis. An array, or mapping, of “defective pixel” flags is used to identify defective pixels within the detector array, with such flags being added to, or inserted into, the incoming data stream for dynamic processing along with the incoming pixel data. A buffer and filter is used to perform still image capture during the radiographic mode of operation and to recursively filter incoming data frames during the fluoroscopic mode of operation by summing a scaled amount of pixel data from prior data frames with a scaled amount of incoming pixel data from the present data frame.

    摘要翻译： 一种多模式数字X射线成像系统，其通过在检测器阵列内以逐行为基础选择性地相加相邻像素电荷并在检测器阵列内进行选择性求和，来提供从检测器阵列“模拟”模拟像素信号 读出电路，先前相加的像素电荷（按行）逐列。 使用“缺陷像素”标志的阵列或映射来识别检测器阵列内的有缺陷的像素，其中这些标记被附加到输入数据流中或插入到输入数据流中，以便与输入像素数据一起进行动态处理。 使用缓冲器和滤波器在放射线照相操作模式下执行静态图像捕获，并且在荧光镜操作模式期间递归滤波输入数据帧，通过将来自先前数据帧的像素数据的缩放量与输入像素数据的标度量相加 从当前的数据帧。

    Multiple mode digital X-ray imaging system
    7.
    发明授权
    Multiple mode digital X-ray imaging system 失效

    公开(公告)号：US5970115A

    公开(公告)日：1999-10-19

    申请号：US978177

    申请日：1997-11-25

    申请人： Richard E. Colbeth ,  John M. Pavkovich ,  Edward J. Seppi ,  Edward G. Shapiro

    发明人： Richard E. Colbeth ,  John M. Pavkovich ,  Edward J. Seppi ,  Edward G. Shapiro

    IPC分类号： H04N5/217 ,  H04N5/32 ,  H04N5/347 ,  H04N5/367 ,  G01N23/04

    CPC分类号： H04N5/347 ,  H04N5/32 ,  H04N5/367

    摘要： A multiple mode digital X-ray imaging system providing for preprocessing "binning" of analog pixel signals from a detector array by selectively summing, within the detector array, adjacent pixel charges on a row-by-row basis and selectively summing, within detector array readout circuits, the previously summed pixel charges (by rows) on a column-by-column basis. An array, or mapping, of "defective pixel" flags is used to identify defective pixels within the detector array, with such flags being added to, or inserted into, the incoming data stream for dynamic processing along with the incoming pixel data. A buffer and filter is used to perform still image capture during the radiographic mode of operation and to recursively filter incoming data frames during the fluoroscopic mode of operation by summing a scaled amount of pixel data from prior data frames with a scaled amount of incoming pixel data from the present data frame.

    METHOD AND APPARATUS FOR EXCESS SIGNAL CORRECTION IN AN IMAGER
    8.
    发明申请
    METHOD AND APPARATUS FOR EXCESS SIGNAL CORRECTION IN AN IMAGER 有权
    用于图像中超越信号校正的方法和装置

    公开(公告)号：US20100118166A1

    公开(公告)日：2010-05-13

    申请号：US12619624

    申请日：2009-11-16

    申请人： Larry D. Partain ,  Ivan Mollov ,  Carlo Tognina ,  Richard E. Colbeth

    发明人： Larry D. Partain ,  Ivan Mollov ,  Carlo Tognina ,  Richard E. Colbeth

    IPC分类号： H04N5/217

    CPC分类号： H04N5/32 ,  H04N5/361

    摘要： A method and apparatus for excess signal compensation in an imaging system is described. In one particular embodiment, the invention provides for non-linear background, offset (due to time dependent dark current) and/or lag (including constant, linear and non-linear terms, due to image persistence) corrections of large area, flat panel imaging sensors.

    摘要翻译： 描述了一种用于成像系统中的多余信号补偿的方法和装置。 在一个特定实施例中，本发明提供了大面积平板的非线性背景，偏移（由于时间依赖的暗电流）和/或滞后（包括恒定的，线性和非线性项，由于图像持续性）校正 成像传感器。

    Current mode analog signal multiplexor
    9.
    发明授权
    Current mode analog signal multiplexor 失效
    电流模式模拟信号多路复用器

    公开(公告)号：US5801571A

    公开(公告)日：1998-09-01

    申请号：US758528

    申请日：1996-11-29

    申请人： Max J. Allen ,  Richard E. Colbeth ,  Martin Mallinson

    发明人： Max J. Allen ,  Richard E. Colbeth ,  Martin Mallinson

    IPC分类号： H03K17/041 ,  H03K17/62 ,  H03K17/56 ,  H03F3/68

    CPC分类号： H03K17/6264 ,  H03K17/04113

    摘要： A current mode analog signal multiplexor includes multiple input multiplexed differential amplifiers, and an output differential current amplifier. An input multiplex control signal selects and enables one of the input multiplexed differential amplifiers for buffering and steering the input signal current to one side of the output differential current amplifier. The reference amplifier drives the other side of the output differential current amplifier. The output node of the output differential current amplifier remains at a substantially constant voltage potential while providing an output current which varies in relation to the selected input signal.

    摘要翻译： 电流模式模拟信号多路复用器包括多输入多路复用差分放大器和输出差分电流放大器。 输入多路复用控制信号选择并使得其中一个输入多路复用差分放大器用于缓冲并将输入信号电流转向输出差分电流放大器的一侧。 参考放大器驱动输出差分电流放大器的另一侧。 输出差分电流放大器的输出节点保持在基本恒定的电压电位，同时提供相对于所选择的输入信号而变化的输出电流。

    Method and apparatus for correcting excess signals in an imaging system
    10.
    发明授权
    Method and apparatus for correcting excess signals in an imaging system 有权
    用于校正成像系统中的多余信号的方法和装置

    公开(公告)号：US08658960B2

    公开(公告)日：2014-02-25

    申请号：US13220577

    申请日：2011-08-29

    申请人： Larry D. Partain ,  Ivan Mollov ,  Carlo Tognina ,  Richard E. Colbeth

    发明人： Larry D. Partain ,  Ivan Mollov ,  Carlo Tognina ,  Richard E. Colbeth

    IPC分类号： H05G1/64

    CPC分类号： H04N5/32 ,  H04N5/361

    摘要： A method and apparatus for excess signal compensation in an imaging system is described. In one particular embodiment, the invention provides for non-linear background, offset (due to time dependent dark current) and/or lag (including constant, linear and non-linear terms, due to image persistence) corrections of large area, flat panel imaging sensors.

    摘要翻译： 描述了一种用于成像系统中的多余信号补偿的方法和装置。 在一个特定实施例中，本发明提供了大面积平板的非线性背景，偏移（由于时间依赖的暗电流）和/或滞后（包括恒定的，线性和非线性项，由于图像持续性）校正 成像传感器。