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公开(公告)号：US07872218B2
公开(公告)日：2011-01-18
申请号：US12398528
申请日：2009-03-05
申请人： Tadao Endo , Toshio Kameshima , Tomoyuki Yagi , Katsuro Takenaka
发明人： Tadao Endo , Toshio Kameshima , Tomoyuki Yagi , Katsuro Takenaka
IPC分类号： H01L27/00
CPC分类号： H04N5/32 , H04N5/361 , H04N5/3698 , H04N5/378
摘要： Each pixel is provided with a photoelectric converting device S1(1-1) or the like, a source-follower-type first transistor T1(1-1) or the like, a second transistor Te(1-1) to be turned on when reading an electrical signal from a pixel selected by a shift register SR1 for each line and outputting the signal to a readout circuit unit and a third transistor T3(1-1) to be turned on when resetting a photoelectric converting device set to a pixel selected by a shift register SR1 for each line. Moreover, a bias power source for supplying a photoelectric conversion bias to a photoelectric converting device and a reset power source for supplying a reset bias to a photoelectric converting device are set in the readout circuit unit. By using the radiation image pickup apparatus and its control method, it is possible to improve the S/N ratio while restraining noises and preferably, it is possible to perform stable and high-speed dynamic-image photographing and restrain dark current.
摘要翻译： 每个像素设置有光电转换装置S1（1-1）等，源极跟随器型第一晶体管T1（1-1）等，要接通的第二晶体管Te（1-1） 当从用于每行的移位寄存器SR1选择的像素读取电信号时，将该信号输出到读出电路单元和第三晶体管T3（1-1），以在将光电转换装置设置为像素时复位 由每行的移位寄存器SR1选择。 此外，在读出电路单元中设置用于向光电转换装置提供光电转换偏压的偏置电源和用于向光电转换装置提供复位偏压的复位电源。 通过使用放射线摄像装置及其控制方法，可以在抑制噪声的同时提高S / N比，优选地，可以进行稳定的高速动态图像拍摄并抑制暗电流。
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82.发明申请公开(公告)号：US20100327176A1
公开(公告)日：2010-12-30
申请号：US12824082
申请日：2010-06-25
申请人： Katsuro Takenaka , Daisuke Yoshida , Toshio Kameshima , Tomoyuki Yagi , Keigo Yokoyama , Sho Sato
发明人： Katsuro Takenaka , Daisuke Yoshida , Toshio Kameshima , Tomoyuki Yagi , Keigo Yokoyama , Sho Sato
IPC分类号： G01T1/17
摘要： An image pickup apparatus includes a detection unit in which a matrix of pixels converts radiation or light into analog electrical signals, a reading circuit configured to perform signal processing operation by reading the analog electric signals on a row-by-row basis, an A/D converter configured to convert a pixel signal output from the reading circuit into pixel data, and a correction processing unit configured to correct the pixel data. A control unit performs control processing so that the reading circuit outputs reset signals to the A/D converter in a period in which the signal processing operation of a predetermined row is performed, the A/D converter converts the reset signals into pieces of reset data in the period, and the correction processing unit averages the pieces of reset data output from the A/D converter and performs subtraction with the averaged reset data and the pixel data output from the A/D converter.
摘要翻译： 一种图像拾取装置，包括：检测单元，其中像素矩阵将辐射或光转换为模拟电信号;读取电路，被配置为通过逐行读取模拟电信号来执行信号处理操作; A / D转换器，被配置为将从读取电路输出的像素信号转换为像素数据;以及校正处理单元，被配置为校正像素数据。 控制单元执行控制处理，使得读取电路在执行预定行的信号处理操作的时段中将复位信号输出到A / D转换器，A / D转换器将复位信号转换成多个复位数据 并且校正处理单元对从A / D转换器输出的复位数据进行平均，并且利用平均的复位数据和从A / D转换器输出的像素数据进行减法。
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公开(公告)号：US07791035B2
公开(公告)日：2010-09-07
申请号：US12713389
申请日：2010-02-26
IPC分类号： H01L27/146
CPC分类号： G03B42/04 , A61B6/00 , A61B6/4233 , A61B6/4488 , A61B6/4494 , A61B6/5235 , H04N5/32
摘要： An electronic cassette type of radiation detection apparatus having a sensor array including a plurality of sensors for detecting incident radiation has a connecting portion to which detachable additional function modules are connected. A selection unit is provided for changing a radiographing mode from a still image radiographing mode and a moving image radiographing mode into a selectable state in response to a connection of at least one of the additional function modules changes.
摘要翻译： 具有包括用于检测入射辐射的多个传感器的传感器阵列的电子盒式放射线检测装置具有可拆卸附加功能模块连接到的连接部分。 提供选择单元，用于响应于至少一个附加功能模块改变的连接，将放射照相模式从静止图像摄影模式和运动图像摄影模式改变为可选择状态。
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84.发明授权公开(公告)号：US07791034B2
公开(公告)日：2010-09-07
申请号：US12366354
申请日：2009-02-05
IPC分类号： G01T1/24
CPC分类号： H04N5/3658 , H01L27/14663 , H04N5/32 , H04N5/378
摘要： An imaging apparatus capable of reducing a line noise artifact in a simple configuration without complicated operations includes: a plurality of pixels arranged in row and column directions and having a photoelectric conversion element and a switch element; a plurality of signal wirings connected to the plurality of switch elements in the column direction; a read-out circuit connected to the plurality of signal wirings; and a power source for supplying a voltage to the photoelectric conversion element. With the configuration, the plurality of pixels are classified into a plurality of groups, and the power sources are independently provided for each of the plurality of groups.
摘要翻译： 能够以简单的结构减少线路噪声伪影而不需要复杂的操作的成像设备包括：排列成行和列方向并具有光电转换元件和开关元件的多个像素; 在列方向上连接到多个开关元件的多个信号布线; 连接到所述多个信号布线的读出电路; 以及用于向光电转换元件提供电压的电源。 利用该配置，将多个像素分成多个组，并且为多个组中的每一个独立地提供电源。
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85.发明授权Radiation imaging apparatus, apparatus control method, and computer-readable storage medium storing program for executing control 失效辐射成像装置，装置控制方法和用于执行控制的存储程序的计算机可读存储介质公开(公告)号：US07750309B2
公开(公告)日：2010-07-06
申请号：US12464162
申请日：2009-05-12
IPC分类号： G01T1/24
CPC分类号： A61B6/4488 , A61B6/4405 , A61B6/4441 , A61B6/548 , H04N5/32 , H04N5/3698
摘要： To provide a radiation imaging apparatus which is capable of both connecting state radiographing for radiographing with a C arm connected and non-connecting state radiographing for radiographing with the C arm disconnected, and is convenient and obtains high quality images, the apparatus includes: a flat panel detector; a holding unit for holding at least the flat panel detector; and a control unit for controlling the flat panel detector. With the configuration, the flat panel detector can be connected to and disconnected from the holding unit; connecting state radiographing can be performed with the flat panel detector connected to the holding unit, and non-connecting state radiographing can be performed with the flat panel detector disconnected from the holding unit; the control unit controls the flat panel detector such that a heat generation quantity of the flat panel detector during the non-connecting state radiographing can be lower than a heat generation quantity of the flat panel detector during the connecting state radiographing.
摘要翻译： 为了提供一种辐射成像装置，其能够将用于X射线照相的状态X射线照相用C臂连接和非连接状态X射线照相用于用C摄影机断开的X射线照相，并且便于获得高质量图像，该装置包括： 面板检测器 保持单元，用于至少保持平板检测器; 以及用于控制平板检测器的控制单元。 通过该配置，平板检测器可以连接到保持单元并从保持单元断开; 可以在与保持单元连接的平板检测器进行连接状态放射照像，并且可以在平板检测器与保持单元断开的情况下进行非连接状态的X线照相; 控制单元控制平板检测器，使得在连接状态放射照相期间平板检测器的发热量可以低于连接状态放射照相期间的平板检测器的发热量。
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公开(公告)号：US20100148077A1
公开(公告)日：2010-06-17
申请号：US12713389
申请日：2010-02-26
CPC分类号： G03B42/04 , A61B6/00 , A61B6/4233 , A61B6/4488 , A61B6/4494 , A61B6/5235 , H04N5/32
摘要： An electronic cassette type of radiation detection apparatus having a sensor array including a plurality of sensors for detecting incident radiation has a connecting portion to which detachable additional function modules are connected. A selection unit is provided for changing a radiographing mode from a still image radiographing mode and a moving image radiographing mode into a selectable state in response to a connection of at least one of the additional function modules changes.
摘要翻译： 具有包括用于检测入射辐射的多个传感器的传感器阵列的电子盒式放射线检测装置具有可拆卸附加功能模块连接到的连接部分。 提供选择单元，用于响应于至少一个附加功能模块改变的连接，将放射照相模式从静止图像摄影模式和运动图像摄影模式改变为可选择状态。
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公开(公告)号：US07696484B2
公开(公告)日：2010-04-13
申请号：US11765124
申请日：2007-06-19
IPC分类号： G01T1/24
CPC分类号： G03B42/04 , A61B6/00 , A61B6/4233 , A61B6/4488 , A61B6/4494 , A61B6/5235 , H04N5/32
摘要： An electronic cassette type of radiation detection apparatus having a sensor array including a plurality of sensors for detecting incident radiation has a connecting portion to which detachable additional function modules are connected. A selection unit is provided for changing a radiographing mode from a still image radiographing mode and a moving image radiographing mode into a selectable state in response to a connection of at least one of the additional function modules changes.
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公开(公告)号：US07629587B2
公开(公告)日：2009-12-08
申请号：US11814749
申请日：2007-01-24
IPC分类号： G01T1/20
CPC分类号： A61B6/4488 , A61B6/4233 , A61B6/4405 , A61B6/4411 , A61B6/4429 , A61B6/56
摘要： A single flat panel detector provides radiation images which can correspond with various radiographic modes. In a radiation imaging apparatus including a flat panel detector which derives a radiation image according to incident radiation, a holding unit which holds the flat panel detector and a connecting mechanism capable of performing a connecting and a disconnecting between the holding unit and the flat panel detector, the flat panel detector can be controlled so that the maximum number of radiation images that the flat panel detector can derive when the flat panel detector is disengaged from the holding unit is smaller than the maximum number of radiation images that the flat panel detector can derive when the flat panel detector is held by the holding unit.
摘要翻译： 单个平板检测器提供可以对应于各种放射照相模式的辐射图像。 在包括根据入射辐射导出放射线图像的平板检测器的放射线成像装置中，保持平板检测器的保持单元和能够执行保持单元和平板检测器之间的连接和断开的连接机构 可以对平板检测器进行控制，使得当平板检测器与保持单元分离时，平板检测器可以获得的最大数量的辐射图像小于平板检测器可获得的最大辐射图像数 当平板检测器被保持单元保持时。
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公开(公告)号：US07541591B2
公开(公告)日：2009-06-02
申请号：US11563806
申请日：2006-11-28
IPC分类号： G01T1/20
摘要： An object hereof is to restrain occurrence of artifact in an acquired radiation image with comparatively simple configuration without providing wiring between a radiation source and a radiation imaging apparatus to thereby obtain a radiation image with extremely good quality. Therefore, a controller selectively carries out real read operation of reading an electric signal obtained by activating a drive circuit from a signal processing circuit unit in case of detecting X-ray irradiation with an X-ray detecting circuit and dummy read operation of reading an electric signal obtained by activating a drive circuit from a signal processing circuit unit in case of detecting X-ray non-irradiation with an X-ray detecting circuit; discontinues the dummy read operation at the time of detecting the start of X-ray irradiation with the X-ray detecting unit in dummy read operation; and starts real read operation at the time of detecting the finish of X-ray irradiation with the X-ray detecting unit.
摘要翻译： 本发明的目的是通过比较简单的结构来抑制所获取的放射线图像中的伪像的发生，而不需要在辐射源和放射线摄像装置之间提供布线，从而获得具有极好质量的辐射图像。 因此，控制器选择性地执行读取在用X射线检测电路检测X射线照射的情况下从信号处理电路单元激活驱动电路而获得的电信号的实际读取操作，以及读取电 在用X射线检测电路检测X射线不照射的情况下，从信号处理电路单元激活驱动电路而获得的信号; 在伪读取操作中用X射线检测单元检测X射线照射的开始时，停止虚拟读取操作; 并且在用X射线检测单元检测X射线照射的完成时开始真实的读取操作。
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90.发明授权公开(公告)号：US07532706B2
公开(公告)日：2009-05-12
申请号：US11319910
申请日：2005-12-27
申请人： Toshio Kameshima , Tadao Endo , Tomoyuki Yagi , Katsuro Takenaka
发明人： Toshio Kameshima , Tadao Endo , Tomoyuki Yagi , Katsuro Takenaka
IPC分类号： H05G1/64 , H05G1/58 , H03G3/00 , H01L27/146
CPC分类号： H04N5/378 , A61B6/00 , A61B6/5235 , A61B6/585 , H04N5/32 , H04N5/3651
摘要： A correction process is performed using different gain correction signals (GSA, GSB) in accordance with radiographic modes (moving image radiographic mode/still image radiographic mode) set in an X-ray imaging apparatus, respectively. This makes it possible to acquire an image with decreased correction errors even when the X-ray imaging apparatus is configured using an imaging unit having different gain characteristics in the still image radiographic mode and moving image radiographic mode.
摘要翻译： 根据设置在X射线成像装置中的放射线照相模式（运动图像摄影模式/静止图像摄影模式），分别使用不同的增益校正信号（GSA，GSB）进行校正处理。 这使得即使当在静止图像放射照相模式和运动图像放射照相模式中使用具有不同增益特性的成像单元来配置X射线成像装置时，也可以获得具有降低的校正误差的图像。
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