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公开(公告)号：US07839977B2
公开(公告)日：2010-11-23
申请号：US11722221
申请日：2006-10-02
CPC分类号： H04N5/32 , A61B6/4233 , A61B6/563 , H01L27/14676 , H04N5/321 , H04N5/347 , H04N5/374 , H04N5/378
摘要： A radiation imaging apparatus comprises a first diving circuit unit to drive a first switching element connected to a conversion element, wherein the conversion element converting radiation into charges, a second diving circuit unit to drive a second switching element connected to the conversion element, and a control unit to control the first diving circuit and the second diving circuit independently at different timing.
摘要翻译： 辐射成像装置包括：第一潜水电路单元，用于驱动连接到转换元件的第一开关元件，其中所述转换元件将辐射转换成电荷;第二跳跃电路单元，驱动连接到所述转换元件的第二开关元件;以及 控制单元以不同的时间独立地控制第一潜水电路和第二潜水电路。
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公开(公告)号：US07732778B2
公开(公告)日：2010-06-08
申请号：US11608083
申请日：2006-12-07
IPC分类号： G01T1/24
摘要： The invention intends to be able to perform a gain correction fully adequately. Hence, at the time of radiographing an object, a gain correction of the object image is performed based on a gain correction image (XRc1) derived by performing a light reset. On the other hand, at the time of radiographing an object, when a light reset is not performed, a gain correction of the object image is performed based on a gain correction image (XRc2) derived without performing the light reset.
摘要翻译： 本发明旨在能够充分地进行增益校正。 因此，在拍摄物体时，基于通过进行光复位导出的增益校正图像（XRc1）来执行对象图像的增益校正。 另一方面，在拍摄物体时，当不进行光复位时，基于不进行光复位而导出的增益校正图像（XRc2），进行被摄体图像的增益校正。
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公开(公告)号：US07683337B2
公开(公告)日：2010-03-23
申请号：US12263895
申请日：2008-11-03
申请人： Katsuro Takenaka , Tadao Endo , Tomoyuki Yagi , Toshio Kameshima
发明人： Katsuro Takenaka , Tadao Endo , Tomoyuki Yagi , Toshio Kameshima
CPC分类号： H04N5/32 , H01L27/14607 , H01L27/14663 , H04N5/341 , H04N5/353
摘要： If image data is input to an image processor (step S1), the image processor generates an integrated image sum (step S2). The image processor extracts a maximum output max from the integrated image sum (step S3). The image processor compares the maximum output max with a preset threshold (step S4). In this case, the threshold is set to 80% of the saturation amount. When the saturation amount is 3 V, the threshold is 2.4 V. If the maximum value max is smaller than the threshold, imaging continues. If the maximum value max is equal to or larger than the threshold, the integrated image sum is cleared to 0 (step S5), and refresh operation is performed.
摘要翻译： 如果图像数据被输入到图像处理器（步骤S1），则图像处理器生成积分图像和（步骤S2）。 图像处理器从积分图像和提取最大输出最大值（步骤S3）。 图像处理器将最大输出最大值与预设阈值进行比较（步骤S4）。 在这种情况下，将阈值设定为饱和量的80％。 当饱和量为3 V时，阈值为2.4 V.如果最大值max小于阈值，则成像继续。 如果最大值max等于或大于阈值，则将积分图像和清除为0（步骤S5），并且执行刷新操作。
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公开(公告)号：US20100001198A1
公开(公告)日：2010-01-07
申请号：US12556607
申请日：2009-09-10
IPC分类号： H01L27/146
CPC分类号： H04N5/374 , H04N5/32 , H04N5/357 , H04N5/3658
摘要： As a radiation imaging apparatus which can easily and effectively correct line noise, there is provided a radiation imaging apparatus having: a conversion unit having a pixel region in which a plurality of pixels each having a conversion element (202) for converting radiation into an electric charge and a switching element (201) for outputting an electric signal based on the electric charge are arranged in a matrix; a capacitor element (301) arranged outside the pixel region; a reading out circuit unit (108) for reading out the electric signals from the pixels row by row and reading out, in parallel, a signal from the capacitor element and the electric signal from the pixel; and a correction unit for correcting the electric signal based on the signal from the capacitor element.
摘要翻译： 作为可以容易且有效地校正线路噪声的放射线摄像装置，提供了一种放射线摄像装置，其具有：具有像素区域的转换单元，其中多个像素分别具有用于将辐射转换成电的转换元件（202） 电荷和用于基于电荷输出电信号的开关元件（201）排列成矩阵; 布置在像素区域外的电容器元件（301） 读出电路单元（108），用于并行地读出来自像素的电信号，并且并行地读出来自电容器元件的信号和来自像素的电信号; 以及校正单元，用于基于来自电容器元件的信号校正电信号。
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45.发明申请IMAGING APPARATUS, RADIATION IMAGING SYSTEM, CONTROLLING METHOD OF IMAGING APPARATUS, AND RECORDING MEDIUM RECORDING CONTROL PROGRAM OF IMAGING APPARATUS 有权成像装置，放射成像系统，成像装置的控制方法和记录装置的中间记录控制程序公开(公告)号：US20090272909A1
公开(公告)日：2009-11-05
申请号：US12422474
申请日：2009-04-13
CPC分类号： G01T1/2928
摘要： An imaging apparatus according to the present invention includes a transmitting path transmitting the output electric signal, and a read out circuit performing a sampling and holding operation for holding the electric signal read out through the transmitting path, and performing a reset operation for reset of the transmitting path, and includes a control unit for controlling an outputting drive circuit and a read out circuit so as to perform row by row the sampling and holding operation after a start of the output operation, to perform the reset operation after the sampling and holding operation, and to perform a termination of the output operation after the reset operation. This can provide an imaging apparatus and a radiation imaging apparatus that can reduce a frame time without reducing an S/N ratio of an image signal.
摘要翻译： 根据本发明的成像装置包括发送输出电信号的发送路径和执行用于保持通过发送路径读出的电信号的采样保持操作的读出电路，并且执行用于复位的复位操作 并且包括用于控制输出驱动电路和读出电路的控制单元，以便在开始输出操作之后逐行地进行采样和保持操作，以在采样和保持操作之后执行复位操作 并且在复位操作之后执行输出操作的终止。 这可以提供可以在不降低图像信号的S / N比的情况下减少帧时间的成像装置和放射线成像装置。
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46.发明授权Radiation imaging apparatus, radiation imaging system, and method of controlling radiation imaging apparatus 有权辐射成像装置，放射线成像系统和控制辐射成像装置的方法公开(公告)号：US07613277B2
公开(公告)日：2009-11-03
申请号：US12175495
申请日：2008-07-18
IPC分类号： H05G1/58
CPC分类号： G01T1/244 , H04N5/32 , H04N5/3698 , H04N5/374 , H04N5/378
摘要： A radiation imaging apparatus is capable of taking a moving picture by acquisition by a reading circuit of a plurality of radiation image signals on the basis of a plurality of successive times of irradiation of a radiation detector with radiation rays. The radiation detector has a two-dimensional array of pixels. In a period between a start of an n-th time of irradiation with radiation rays and a start of an (n+1)-th time of irradiation with radiation rays, where n is a natural number, a controller switches an operation status of an analog-to-digital converter that converts electric signals read by the reading circuit into digital signals so that power consumption of the analog-to-digital converter is reduced.
摘要翻译： 辐射成像装置能够通过基于放射线检测器的多次连续照射时间的多个辐射图像信号的读取电路进行拍摄来拍摄运动图像。 辐射检测器具有二维像素阵列。 在用放射线照射的第n次开始与第n + 1次放射线照射开始之间的期间，其中n是自然数，控制器切换操作状态 将由读取电路读取的电信号转换成数字信号的模拟 - 数字转换器，从而降低模数转换器的功耗。
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47.发明申请RADIATION IMAGING APPARATUS, APPARATUS CONTROL METHOD, AND COMPUTER-READABLE STORAGE MEDIUM STORING PROGRAM FOR EXECUTING CONTROL 失效放射成像装置，装置控制方法以及用于执行控制的计算机可读存储介质存储程序公开(公告)号：US20090224163A1
公开(公告)日：2009-09-10
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像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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48.发明授权Radiation image pickup apparatus, radiation image pickup system, their control method and their control program 失效辐射摄像装置，放射摄像系统，其控制方法及其控制程序公开(公告)号：US07573038B2
公开(公告)日：2009-08-11
申请号：US11502541
申请日：2006-08-11
CPC分类号： H01L27/14663 , H01L27/12 , H01L27/14609 , H01L31/095 , H01L31/105 , H01L31/1085 , H01L31/119 , H04N5/32 , H04N5/357 , H04N5/365 , H04N5/3742
摘要： A radiation image pickup apparatus which selectively executes a first reading operation driving a detection unit irradiated with the radiation to read a first signal value, a second reading operation driving the detection unit without being irradiated with any radiations before the first reading operation to read a second signal value, and a third reading operation driving the detection unit without being irradiated with any radiations after the first reading operation to read a third signal value, and subtracts a signal value produced by the processing of the second signal value and the third signal value from the first signal value, thereby reducing an offset component and random noises without lowering a frame rate and its control method are provided.
摘要翻译： 一种放射线图像拾取装置，其选择性地执行驱动用辐射照射的检测单元读取第一信号值的第一读取操作，驱动检测单元的第二读取操作，而不在第一读取操作之前照射任何辐射以读取第二信号值 信号值，以及驱动检测单元的第三读取操作，而不用在第一读取操作之后的任何辐射照射以读取第三信号值，并且将从第二信号值和第三信号值的处理产生的信号值相减 第一信号值，从而降低偏移分量和随机噪声而不降低帧速率，并提供其控制方法。
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公开(公告)号：US07514690B2
公开(公告)日：2009-04-07
申请号：US11127077
申请日：2005-05-12
申请人： Tadao Endo , Toshio Kameshima , Tomoyuki Yagi , Katsuro Takenaka
发明人： Tadao Endo , Toshio Kameshima , Tomoyuki Yagi , Katsuro Takenaka
CPC分类号： H04N5/32 , H04N5/361 , H04N5/3698 , H04N5/378
摘要： Each pixel is provided with a photoelectric converting device or the like, a source-follower-type first transistor or the like, a second transistor to be turned on when reading an electrical signal from a pixel selected by a shift register for each line and outputting the signal to a readout circuit unit and a third transistor to be turned on when resetting a photoelectric converting device set to a pixel selected by a shift register 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等，源极跟随器型第一晶体管等，当从用于每行的移位寄存器选择的像素读取电信号时将被接通的第二晶体管，并且输出 当将每个行的移位寄存器选择的像素设置为光电转换装置复位时，将信号发送到读出电路单元和第三晶体管。 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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公开(公告)号：US07381963B2
公开(公告)日：2008-06-03
申请号：US11535726
申请日：2006-09-27
IPC分类号： G01T1/24
CPC分类号： G01T1/2018 , G01T1/247
摘要： It is made possible that, in accordance with a plurality of radiographing modes such as the still image radiographing mode and the moving image radiographing mode, the outputs both in the irradiation period and in the non-irradiation period are made to fall within the dynamic range of the radiographing system, whereby an accurate, high-S/N-ratio X-ray radiographic image is obtained. For that purpose, in accordance with the plurality of radiographing modes, an arithmetic operation unit adjusts a power source to control voltage to be applied to a reading circuit unit or an Analogue-Digital conversion unit, such that, in each of the radiographing modes, both an electric signal in the X-ray irradiation period and an electric signal in the X-ray non-irradiation period fall within the dynamic ranges of the reading circuit unit and the Analogue-Digital conversion unit.
摘要翻译： 有可能根据诸如静止图像放射照相模式和运动图像放射照相模式的多种放射照相模式，使得在照射期间和非照射期间的输出都落在动态范围内 的X射线照相系统，从而获得准确的高S / N比X射线照相图像。 为此，根据多个放射照相模式，算术运算单元调整电源以控制要施加到读取电路单元或模拟数字转换单元的电压，使得在每个放射照相模式中， X射线照射期间的电信号和X射线不照射期间的电信号都在读取电路部和模拟数字转换部的动态范围内。
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