公开(公告)号：US08471213B2

公开(公告)日：2013-06-25

申请号：US12637579

申请日：2009-12-14

申请人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Masayoshi Akiyama ,  Katsuro Takenaka ,  Keigo Yokoyama

发明人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Masayoshi Akiyama ,  Katsuro Takenaka ,  Keigo Yokoyama

IPC分类号： H01L27/146

CPC分类号： G01T1/00 ,  H04N5/32 ,  H04N5/3658 ,  H04N5/3698

摘要： An apparatus includes a detecting unit having pixels that converts radiation or light to electric signals; a drive circuit that drives the detecting unit; a read circuit that outputs the electric signals as image signals; a power supply unit that supplies voltages to the detecting unit, the drive circuit, and the read circuit; and a control unit that controls at least the drive circuit and the power supply unit. The control unit performs a first process of stopping the voltage supply operation to the detecting unit, with the voltage supply operations to the drive circuit and the read circuit maintained; a second process of driving the detecting unit; and a third process of stopping the voltage supply operations to the drive circuit and the read circuit.

摘要翻译： 一种装置包括具有将辐射或光转换成电信号的像素的检测单元; 驱动所述检测单元的驱动电路; 将电信号作为图像信号输出的读出电路; 电源单元，向检测单元，驱动电路和读取电路提供电压; 以及至少控制驱动电路和电源单元的控制单元。 控制单元执行停止对检测单元的电压供应操作的第一过程，其中维持对驱动电路和读取电路的电压供应操作; 驱动检测单元的第二处理; 以及停止对驱动电路和读取电路的电压供给操作的第三处理。

公开(公告)号：US20120241639A1

公开(公告)日：2012-09-27

申请号：US13424062

申请日：2012-03-19

申请人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Katsuro Takenaka ,  Sho Sato ,  Atsushi Iwashita

发明人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Katsuro Takenaka ,  Sho Sato ,  Atsushi Iwashita

IPC分类号： H01L27/146 ,  G01T1/16

CPC分类号： G01T1/244 ,  A61B6/06 ,  A61B6/4405 ,  A61B6/4411 ,  A61B6/56

摘要： An image pickup apparatus includes a detector that includes a detection unit having a plurality of pixels in which conversion elements are included and a driving circuit that drives the detection unit and that executes an image pickup operation for outputting electrical signals, and a temperature control unit that includes a heating section that heats the conversion elements and that controls, before the image pickup operation begins, the temperature of the conversion elements by controlling the heating section such that the heating section heats the conversion elements in order to cause the temperature of the conversion elements before the image pickup operation begins to be higher than the temperature of the conversion elements during the image pickup operation.

摘要翻译： 一种图像拾取装置，包括检测器，其包括具有多个像素的检测单元，其中包括转换元件;驱动电路驱动检测单元并执行用于输出电信号的图像拾取操作;以及温度控制单元， 包括加热部分，其加热转换元件，并且在图像拾取操作开始之前通过控制加热部分来控制转换元件的温度，使得加热部分加热转换元件以使转换元件的温度 在图像拾取操作开始高于图像拾取操作期间的转换元件的温度之前。

公开(公告)号：US20120075600A1

公开(公告)日：2012-03-29

申请号：US13231062

申请日：2011-09-13

申请人： Sho Sato ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Atsushi Iwashita

发明人： Sho Sato ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama ,  Atsushi Iwashita

IPC分类号： G03B27/02

CPC分类号： G03B42/02 ,  G03B7/08

摘要： An imaging apparatus includes a detector in which a plurality of pixels are arranged in a matrix; each pixel includes a conversion element that converts radiation or light into an electric charge. The detector performs an exposure imaging operation for outputting exposure image data, a correction imaging operation for outputting correction image data, and a correction imaging preparation operation including an initialization operation for initializing the conversion element between the exposure imaging operation and the correction imaging operation. A correction unit corrects the exposure image data using the correction image data; and a control unit controls the operation of the detector so that the detector performs the initialization operation based on an amount of variation in offset of the conversion element at the time of transitioning from an exposure imaging preparation operation to the exposure imaging operation.

摘要翻译： 一种成像设备包括其中多个像素被布置成矩阵的检测器; 每个像素包括将辐射或光转换成电荷的转换元件。 检测器执行用于输出曝光图像数据的曝光成像操作，用于输出校正图像数据的校正成像操作以及包括用于在曝光成像操作和校正成像操作之间初始化转换元件的初始化操作的校正成像准备操作。 校正单元使用校正图像数据校正曝光图像数据; 并且控制单元控制检测器的操作，使得检测器基于从曝光成像准备操作转换到曝光成像操作时的转换元件的偏移量的变化量执行初始化操作。

公开(公告)号：US20110024641A1

公开(公告)日：2011-02-03

申请号：US12844554

申请日：2010-07-27

申请人： Keigo Yokoyama ,  Tadao Endo ,  Toshio Kameshima ,  Masayoshi Akiyama ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Sho Sato

发明人： Keigo Yokoyama ,  Tadao Endo ,  Toshio Kameshima ,  Masayoshi Akiyama ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Sho Sato

IPC分类号： H01L27/00 ,  G01T1/26

CPC分类号： A61B6/06 ,  A61B6/4233 ,  A61B6/5241 ,  A61B6/542 ,  A61B6/585 ,  H04N5/32

摘要： An imaging apparatus includes a detector, having a plurality of pixels arranged in a matrix, for performing first and second radiography operations, a bias light source, and a control unit that controls the operation of the detector and the bias light source. In the first radiography operation, image data corresponding to radiation in a first radiation field corresponding to some of the pixels is output. In the second radiography operation, image data corresponding to radiation in a second radiation field larger than the first radiation field is output. In accordance with a change from the first radiation field to the second radiation field, the operation of the bias light source is controlled so that the irradiation with the bias light is performed during a period between the first and second radiography operations at a bias-light integral dose determined based on radiation integral dose information in the first radiography operation.

摘要翻译： 一种成像装置包括具有排列成矩阵的多个像素的检测器，用于执行第一和第二次X射线照相操作，偏置光源和控制检测器和偏置光源的操作的控制单元。 在第一次放射线照相操作中，输出与对应于一些像素的第一辐射场中的辐射对应的图像数据。 在第二次X射线摄影操作中，输出对应于大于第一辐射场的第二辐射场中的辐射的图像数据。 根据从第一辐射场到第二辐射场的变化，控制偏置光源的操作，使得在偏光下的第一和第二射线照相操作期间执行偏置光的照射 在第一次放射照相术中基于辐射积分剂量信息确定的积分剂量。

公开(公告)号：US20090218476A1

公开(公告)日：2009-09-03

申请号：US11500323

申请日：2006-08-08

申请人： Toshio Kameshima ,  Chiori Mochizuki ,  Tadao Endo ,  Tomoyuki Yagi ,  Katsuro Takenaka

发明人： Toshio Kameshima ,  Chiori Mochizuki ,  Tadao Endo ,  Tomoyuki Yagi ,  Katsuro Takenaka

IPC分类号： H01L27/00 ,  H01J40/14

CPC分类号： H01L27/14663 ,  A61B6/00 ,  A61B6/4233 ,  H01L27/14609 ,  H01L27/14692 ,  H04N5/347 ,  H04N5/378

摘要： A radiation image pickup apparatus or the like which realizes improvement of noise resistance characteristics when adding pixel signals is provided. For this purpose, the radiation image pickup apparatus has a switching unit which is arranged between a signal wiring and an amplifier and can switch electrical connection among a plurality of signal wirings and electrical connection between a predetermined one of the plurality of signal wirings and the amplifier corresponding thereto. In accordance with mode setting, the switching unit switches a first state where the plurality of signal wirings are electrically connected and the predetermined signal wiring and the corresponding amplifier are electrically disconnected and a second state where the plurality of signal wirings are electrically disconnected and the predetermined signal wiring and the corresponding amplifier are electrically connected.

摘要翻译： 提供了当添加像素信号时实现噪声特性提高的放射线摄像装置等。 为此，放射线摄像装置具有设置在信号布线与放大器之间的切换单元，能够切换多个信号布线之间的电连接与多个信号布线中的预定的一个信号布线与放大器之间的电连接 对应于此。 根据模式设置，切换单元切换多个信号布线电连接的第一状态，并且预定信号布线和相应的放大器电断开，并且多个信号布线电断开的第二状态和预定的 信号线和相应的放大器电连接。

公开(公告)号：US07573041B2

公开(公告)日：2009-08-11

申请号：US12038346

申请日：2008-02-27

申请人： Toshio Kameshima ,  Tadao Endo ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama

发明人： Toshio Kameshima ,  Tadao Endo ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama

IPC分类号： H01L25/16

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。

公开(公告)号：US07564038B2

公开(公告)日：2009-07-21

申请号：US11846054

申请日：2007-08-28

申请人： Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama

发明人： Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Katsuro Takenaka ,  Keigo Yokoyama

IPC分类号： G01T1/20 ,  G01T1/24

CPC分类号： H04N5/32 ,  H04N5/3658 ,  H04N5/374 ,  H04N5/3742 ,  H04N5/378

摘要： For reducing extremely conspicuous line noise appearing in a picked up image with a simple configuration without complicating the configuration of an apparatus, an imaging apparatus a first sampling and holding circuit for sampling and holding an electric signal from pixels in one column of the detection unit and a second sampling and holding circuit for sampling and holding and electric signal from pixels in the other column of the detection unit, and a control unit for controlling such that the first and second sampling and holding circuits perform the sampling and holding in mutually different timings.

摘要翻译： 为了以简单的配置减少出现在拾取图像中的非常明显的线路噪声，而不会使设备的配置复杂化，成像设备具有用于从检测单元的一列中的像素采样和保持电信号的第一采样和保持电路，以及 用于从检测单元的另一列中的像素采样和保持电信号的第二采样和保持电路;以及控制单元，用于控制使得第一和第二采样保持电路在相互不同的定时执行采样和保持。

公开(公告)号：US20090166547A1

公开(公告)日：2009-07-02

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： G01T1/24

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。

公开(公告)号：US20090121143A1

公开(公告)日：2009-05-14

申请号：US12247491

申请日：2008-10-08

申请人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama

发明人： Katsuro Takenaka ,  Tadao Endo ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Keigo Yokoyama

IPC分类号： G01T1/20 ,  G06F15/00

CPC分类号： H04N5/32 ,  H01L27/14663 ,  H04N5/361 ,  H04N5/365

摘要： Provided is a radiation imaging apparatus including: a conversion unit including a plurality of pixels arranged two dimensionally, wherein each of the pixels includes a conversion element (S1-1) for converting an incident radiation into an electric charge and a switching element (T1-1) for transferring an electric signal based on the electric charge; a drive circuit unit (106) for outputting, to the switching element, a drive signal having a voltage for turning on the switching element; a read out circuit unit (A1, CL1, 100 and 101) for reading out the electric signal from the pixel; a calculating unit (103) for calculating S/N ratio of the electric signal read out by the read out circuit unit; and a determination unit (104, 105 and LUT) capable of changing the voltage of the drive signal output from the drive circuit unit according to the S/N ratio calculated. As a result, the radiation imaging apparatus capable of improving the S/N ratio of the derived image is provided.

摘要翻译： 本发明提供一种放射线摄像装置，包括：转换单元，包括二维排列的多个像素，其中每个像素包括用于将入射辐射转换为电荷的转换元件（S1-1）和开关元件（T1- 1）用于基于电荷传送电信号; 驱动电路单元（106），用于向开关元件输出具有用于接通开关元件的电压的驱动信号; 读出电路单元（A1，CL1,100和101），用于从像素读出电信号; 计算单元，用于计算读出电路单元读出的电信号的S / N比; 以及能够根据所计算的S / N比来改变从驱动电路单元输出的驱动信号的电压的判定单元（104,105和LUT）。 结果，提供了能够提高导出图像的S / N比的放射线摄像装置。

公开(公告)号：US07514663B2

公开(公告)日：2009-04-07

申请号：US11765107

申请日：2007-06-19

申请人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Katsuro Takenaka ,  Keigo Yokoyama

发明人： Tomoyuki Yagi ,  Tadao Endo ,  Toshio Kameshima ,  Katsuro Takenaka ,  Keigo Yokoyama

IPC分类号： H01L27/00

CPC分类号： H04N5/376 ,  A61B6/503 ,  H04N5/32 ,  H04N5/343 ,  H04N5/3454 ,  H04N5/3456 ,  H04N5/347 ,  H04N5/374

摘要： An image apparatus capable of improving a frame rate to prevent resolution in the predetermined area from decreasing and forming image signals outside the predetermined area has an area sensor in which a plurality of pixels is arranged in a matrix, a drive circuit unit, a read out circuit unit and a processing unit processing signals transferred from the read out circuit unit. The drive circuit unit and the read out circuit unit perform a first operation in which signals are simultaneously read out from N pixels in a first area of the area sensor (where N is an integer equal to one or more) and a second operation in which signals are simultaneously read out from M pixels in a second area except the first area of the area sensor (where M is an integer equal to two or more and always greater than N), the first and second read out operations are continuously performed in one frame period, and a first and a second signal obtained by the first and the second read out operations are continuously transferred from the read out circuit unit to the processing unit.

摘要翻译： 能够提高帧速率以防止预定区域中的分辨率降低和形成预定区域外的图像信号的图像装置具有其中多个像素排列成矩阵的区域传感器，驱动电路单元，读出 电路单元和处理单元，处理从读出电路单元传送的信号。 驱动电路单元和读出电路单元执行第一操作，其中从区域传感器的第一区域（其中N是等于一个或多于一个的整数）的N个像素同时读出信号，其中第二操作 信号同时从除了区域传感器的第一区域（其中M是等于两个或更多且总是大于N的整数）的第二区域中的M个像素读出，第一和第二读出操作在一个 并且通过第一和第二读出操作获得的第一和第二信号从读出电路单元连续地传送到处理单元。