公开(公告)号：US06713769B2

公开(公告)日：2004-03-30

申请号：US09683738

申请日：2002-02-07

申请人： Habib Vafi ,  Richard Gordon Cronce ,  Scott William Petrick ,  Jeffrey Alan Kautzer ,  David Conrad Neumann

发明人： Habib Vafi ,  Richard Gordon Cronce ,  Scott William Petrick ,  Jeffrey Alan Kautzer ,  David Conrad Neumann

IPC分类号： G01T124

CPC分类号： A61B6/42 ,  A61B6/4488

摘要： An X-ray imaging system that utilizes the leakage, or dark current, of a detector panel's photodiodes to provide more accurate data about the temperature and spatial distribution of temperature of the X-ray detector panel. Offset images are taken at known temperatures and recorded for each photodiode at two or more known temperatures. A temperature versus offset image value curve is the created for each photodiode. A second offset image value is determined immediately prior to or immediately after X-ray acquisition to determine the temperature of the detector panel at the time of X-ray acquisition. A coupled closed-loop cooling system utilizes the determined temperature to maintain the detector panel within a preferred temperature range.

摘要翻译： 使用检测器面板的光电二极管的泄漏或暗电流的X射线成像系统提供关于X射线检测器面板的温度和空间分布的更准确的数据。 在已知温度下拍摄偏移图像，并在两个或更多已知温度下记录每个光电二极管。 温度对偏移图像值曲线是为每个光电二极管创建的。 在X射线获取之前或之后立即确定第二偏移图像值，以确定在X射线获取时检测器面板的温度。 耦合的闭环冷却系统利用确定的温度将检测器面板保持在优选的温度范围内。

公开(公告)号：US06798864B2

公开(公告)日：2004-09-28

申请号：US10063181

申请日：2002-03-28

申请人： Scott William Petrick ,  Rowland Frederick Saunders ,  Richard Gordon Cronce ,  Jeffrey Alan Kautzer

发明人： Scott William Petrick ,  Rowland Frederick Saunders ,  Richard Gordon Cronce ,  Jeffrey Alan Kautzer

IPC分类号： H05G164

CPC分类号： H04N5/361 ,  A61B6/583 ,  H04N5/235 ,  H04N5/32

摘要： Methods and apparatus are provided in a diagnostic X-ray system for reducing signal conversion time for a solid-state detector panel of the X-ray system in order to increase frame rate. A measurement of a set of induced signal offsets caused by time varying charge retention associated with the detector panel is performed during a phantom time segment prior to normal signal readout of the detector panel for a current image frame. A set of adjustment values is generated in response to the set of induced signal offsets. Subsets of signal values of the detector panel are read out to a pre-determined signal dynamic range as part of normal signal readout of the detector panel in response to the set of adjustment values, thus generating a set of normalized detector signals.

摘要翻译： 在诊断X射线系统中提供了用于降低X射线系统的固态检测器面板的信号转换时间的方法和装置，以便提高帧速率。 在针对当前图像帧的检测器面板的正常信号读出之前，在幻影时间段期间执行由与检测器面板相关联的时变电荷保持引起的一组感应信号偏移的测量。 响应于感应信号偏移的集合产生一组调整值。 检测器面板的信号值的子集作为响应于该组调整值的检测器面板的正常信号读出的一部分被读出到预定的信号动态范围，从而产生一组归一化的检测器信号。

公开(公告)号：US06989538B2

公开(公告)日：2006-01-24

申请号：US10604454

申请日：2003-07-22

申请人： Scott William Petrick ,  Alan Dean Blomeyer ,  Richard Gordon Cronce ,  Jeffrey Alan Kautzer

发明人： Scott William Petrick ,  Alan Dean Blomeyer ,  Richard Gordon Cronce ,  Jeffrey Alan Kautzer

IPC分类号： G01J1/44 ,  G01T1/24 ,  H01L25/00 ,  H01L27/00 ,  H05G1/64

CPC分类号： H04N5/365 ,  A61B6/585 ,  H04N5/32

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。

公开(公告)号：US06642524B2

公开(公告)日：2003-11-04

申请号：US09683497

申请日：2002-01-09

申请人： Habib Vafi ,  David Conrad Neumann ,  Rowland Frederick Saunders ,  Scott William Petrick

发明人： Habib Vafi ,  David Conrad Neumann ,  Rowland Frederick Saunders ,  Scott William Petrick

IPC分类号： G01T124

CPC分类号： G01T1/2018 ,  H01L31/02322 ,  H01L31/115

摘要： An improved design for a solid state X-ray detector that decreases the amount of moisture diffusion that occurs through seals used to attach a cover to a glass substrate panel, thereby protecting the scintillator from moisture damage. In one embodiment, a second hermetic or semi-hermetic seal is introduced between the scintillator and the outside environment to increase the path moisture must travel to reach the scintillator. In another embodiment, a metal frame, preferably a Kovar® frame, is hermetically or semi-hermetically sealed to the cover and glass substrate panel, thereby decreasing the amount of moisture diffusion through the semi-hermetic seal as compared to the prior art.

摘要翻译： 用于固态X射线检测器的改进的设计，其减少通过用于将盖附接到玻璃基板的密封件发生的水分扩散量，从而保护闪烁体免受水分损害。 在一个实施例中，在闪烁体和外部环境之间引入第二密封或半密封以增加必须行进的路径以到达闪烁体。 在另一个实施例中，与现有技术相比，金属框架，优选科瓦框架被气密或半密封地密封到盖和玻璃基板面板，从而减少了通过半封闭密封件的水分扩散量 。

公开(公告)号：US07132667B2

公开(公告)日：2006-11-07

申请号：US10841010

申请日：2004-05-07

申请人： Scott William Petrick ,  Alan Dean Blomeyer ,  Jingyi Liang ,  Richard Gordon Cronce

发明人： Scott William Petrick ,  Alan Dean Blomeyer ,  Jingyi Liang ,  Richard Gordon Cronce

IPC分类号： G01T1/24

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。

公开(公告)号：US06618604B2

公开(公告)日：2003-09-09

申请号：US09752854

申请日：2000-12-28

申请人： Scott William Petrick ,  John Moore Boudry ,  Richard Gordon Cronce ,  Douglas I. Perry

发明人： Scott William Petrick ,  John Moore Boudry ,  Richard Gordon Cronce ,  Douglas I. Perry

IPC分类号： A61B5058

CPC分类号： A61B6/032 ,  A61B6/583 ,  A61B6/585 ,  H04N5/32 ,  H04N5/3597

摘要： A method and apparatus for correcting the offset induced by Field Effect Transistor (FET) photo-conductive effects in solid state x-ray detectors includes dedicating rows at the beginning and end of an x-ray detector scan. The dedicated rows may be used to measure the “signal” induced by the photo-conductivity of FET switches in solid state x-ray detectors. Since the signal induced by FET photo-conductivity decays over time, the measurements taken at the beginning and end of a detector scan may be used to predict by interpolation the amount of signal contributed by photo-conductive induced offset for each row of the detector scan on a column by column basis.

摘要翻译： 用于校正由固态X射线检测器中的场效应晶体管（FET）光电导效应引起的偏移的方法和装置包括在X射线检测器扫描的开始和结束处专用行。 专用行可用于测量由固态X射线检测器中的FET开关的光电导率引起的“信号”。 由于FET光电导致的信号随着时间的推移衰减，所以在检测器扫描的开始和结束时进行的测量可以用于通过插值来预测由扫描器扫描的每一行的光导感应偏移所贡献的信号量 逐列依据。

公开(公告)号：US08861678B2

公开(公告)日：2014-10-14

申请号：US13469655

申请日：2012-05-11

申请人： James Zhengshe Liu ,  Scott William Petrick ,  Luke Gerard Beno

发明人： James Zhengshe Liu ,  Scott William Petrick ,  Luke Gerard Beno

IPC分类号： H05G1/08

CPC分类号： H05G1/08

摘要： A system for eliminating image artifacts caused by electromagnetic interference (EMI) on a portable digital x-ray detector that is capable of non-contact wireless inductively coupled power transfer and capacitively coupled communication and data transfer. An X-ray imaging system comprising a portable digital X-ray detector inductively and capacitively coupled to a power source and communication device that is coupled to a detector receptacle of the X-ray imaging system when the portable digital X-ray detector is located within the detector receptacle to transfer power from a power supply of the power source and communication device to the portable digital X-ray detector and transfer communication and data between the power source and communication device and the portable digital X-ray detector.

摘要翻译： 一种用于消除由便携式数字X射线检测器引起的电磁干扰（EMI）的图像伪像的系统，其能够进行非接触式无线电感耦合功率传输和电容耦合通信和数据传输。 一种X射线成像系统，包括便携式数字X射线检测器，感应和电容耦合到电源和通信设备，当便携式数字X射线检测器位于内部时，该通信设备耦合到X射线成像系统的检测器插座 检测器插座，用于将电源和通信设备的电源传送到便携式数字X射线检测器，并传送电源和通信设备与便携式数字X射线检测器之间的通信和数据。

公开(公告)号：US07488947B1

公开(公告)日：2009-02-10

申请号：US11835534

申请日：2007-08-08

申请人： Scott William Petrick ,  James Zhengshe Liu ,  Frank Gao

发明人： Scott William Petrick ,  James Zhengshe Liu ,  Frank Gao

IPC分类号： G01T1/24

CPC分类号： G01T1/2018 ,  G01T7/005

摘要： Systems, methods and apparatus are provided through which in some embodiments field-effect-transistor (FET) leakage is estimated recursively from a pixel value obtained when the FET is off. The corrected pixel value is then obtained by subtracting the FET leakage estimate from the pixel value read when the FET is on. A weighing factor is introduced for the FET leakage estimation to achieve the balance between image noise and correction resolution.

摘要翻译： 提供了系统，方法和装置，在一些实施例中，从FET关闭时获得的像素值递归地估计场效应晶体管（FET）泄漏。 然后通过从FET接通时读取的像素值减去FET泄漏估计值来获得校正的像素值。 引入了用于FET泄漏估计的称重系数，以实现图像噪声和校正分辨率之间的平衡。

公开(公告)号：US20080029707A1

公开(公告)日：2008-02-07

申请号：US11461760

申请日：2006-08-01

申请人： Nirmal Mukund Kari ,  Scott William Petrick ,  Christopher Unger

发明人： Nirmal Mukund Kari ,  Scott William Petrick ,  Christopher Unger

IPC分类号： G01T1/24

CPC分类号： G06F1/266 ,  A61B6/4405 ,  A61B6/4494 ,  A61B6/563

摘要： Systems, methods and apparatus are provided through which a portable imaging device is operable to communicate to other devices through both a wired communication path and a wireless communication path.

摘要翻译： 提供了系统，方法和装置，通过该系统，方法和装置，便携式成像装置可操作以通过有线通信路径和无线通信路径与其他设备通信。

公开(公告)号：US08779907B2

公开(公告)日：2014-07-15

申请号：US12550965

申请日：2009-08-31

申请人： James Zhengshe Liu ,  Scott William Petrick ,  Donald Fayette Langler ,  Gary Vernon McBroom ,  Roy Allan Schley

发明人： James Zhengshe Liu ,  Scott William Petrick ,  Donald Fayette Langler ,  Gary Vernon McBroom ,  Roy Allan Schley

IPC分类号： G08B23/00 ,  G08B21/00 ,  G06F1/32 ,  A61B6/00 ,  A61B8/00 ,  A61B5/055

CPC分类号： A61B6/56 ,  A61B5/055 ,  A61B6/4233 ,  A61B6/4405 ,  A61B6/4494 ,  A61B6/467 ,  A61B6/508 ,  A61B6/548 ,  A61B8/00 ,  A61B8/4405 ,  A61B2560/0209 ,  G06F1/3206 ,  G06F1/3287 ,  Y02D10/171

摘要： A control circuit for a portable x-ray medical imaging system detector. The control circuit operates to reduce power consumption of the portable x-ray detector. The detector control circuit includes a multi-function switch coupled to the portable detector, and a detector control module installed in the portable detector, the detector control module receiving an input from the multi-function switch and based on the received input reconfiguring the portable detector from a first operational mode to a different second operational mode. A portable detector including the detector control circuit and a method of operating the portable detector are also provided.

摘要翻译： 一种用于便携式X射线医学成像系统检测器的控制电路。 控制电路用于降低便携式x射线检测器的功耗。 检测器控制电路包括耦合到便携式检测器的多功能开关和安装在便携式检测器中的检测器控制模块，检测器控制模块接收来自多功能开关的输入，并且基于所接收的输入，重新配置便携式检测器 从第一操作模式到不同的第二操作模式。 还提供了包括检测器控制电路的便携式检测器和操作便携式检测器的方法。