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11.发明授权Radiation imaging apparatus, method for controlling the same, and radiation image detection device 有权辐射成像装置，其控制方法和放射线图像检测装置公开(公告)号：US09322928B2
公开(公告)日：2016-04-26
申请号：US14139306
申请日：2013-12-23
Applicant: FUJIFILM Corporation
Inventor： Naoto Iwakiri , Naoyuki Nishino , Yasunori Ohta , Kouichi Kitano , Haruyasu Nakatsugawa
CPC classification number: G01T1/16 , A61B6/4233 , A61B6/4283 , A61B6/54 , H04N5/32 , H04N5/353 , H04N5/374
Abstract: A determination section of an FPD checks external information against a determination table and determines whether detection of a rise of X-ray pulses is allowed based on an output voltage from a short-circuited pixel. The FPD detects X-ray images. The external information is transmitted from an imaging control device. The X-ray pulses are sequentially generated by an X-ray generating apparatus. A controller selects a pulse irradiation mode in a case where the detection of the rise of the X-ray pulse is allowed. If not, a successive irradiation mode is selected. In the pulse irradiation mode, the rise and the fall of the X-ray pulse are detected and timing of storage operation is synchronized with the detected timing of the rise. In the successive irradiation mode, the storage operation is performed at predetermined time intervals without the detection of the rise and the fall of the X-ray pulse.
Abstract translation: FPD的确定部分根据确定表检查外部信息，并且基于来自短路像素的输出电压来确定是否允许检测X射线脉冲的上升。 FPD检测X射线图像。 外部信息从成像控制装置发送。 X射线脉冲由X射线产生装置依次产生。 在允许检测X射线脉冲的上升的情况下，控制器选择脉冲照射模式。 如果不是，则选择连续的照射模式。 在脉冲照射模式中，检测X射线脉冲的上升和下降，并且存储操作的定时与检测到的上升时间同步。 在连续照射模式中，以预定的时间间隔进行存储操作，而不检测X射线脉冲的上升和下降。
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公开(公告)号：US08983035B2
公开(公告)日：2015-03-17
申请号：US13683428
申请日：2012-11-21
Applicant: FUJIFILM Corporation
Inventor： Kentaro Noma , Kenji Nakamura , Naoto Iwakiri , Kouichi Kitano , Keita Watanabe
Abstract: A flat panel detector has pixels for obtaining image signals and detective pixels for detecting the amount of incident x-rays. A signal processing circuit is of a pipeline-type, wherein first and second buffer memories are connected to the output of an A/D converter. In a dose detecting operation, the signal processing circuit repeats primary cycles alternately with secondary cycles of a shorter length than the primary cycles. In the primary cycle, a dose detection signal based on electric charges from the detective pixels is input in the first buffer memory and, simultaneously, a dummy signal is output from the second buffer memory. In secondary cycle, the dose detection signal is output from the first buffer memory and, simultaneously, a second dummy signal is input in the second buffer memory. On the basis of the dose detection signals, a start-of-radiation detector detects the start of x-ray radiation.
Abstract translation: 平板检测器具有用于获得图像信号的像素和用于检测入射X射线量的检测像素。 信号处理电路是流水线型的，其中第一和第二缓冲存储器连接到A / D转换器的输出端。 在剂量检测操作中，信号处理电路以比主要周期短的次级循环交替重复主循环。 在主循环中，基于来自检测像素的电荷的剂量检测信号被输入到第一缓冲存储器中，同时从第二缓冲存储器输出虚拟信号。 在二次循环中，从第一缓冲存储器输出剂量检测信号，同时在第二缓冲存储器中输入第二伪信号。 基于剂量检测信号，起始辐射检测器检测X射线辐射的开始。
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公开(公告)号：US08879689B2
公开(公告)日：2014-11-04
申请号：US14094234
申请日：2013-12-02
Applicant: FUJIFILM Corporation
Inventor： Yasunori Ohta , Kouichi Kitano , Naoyuki Nishino , Haruyasu Nakatsugawa , Naoto Iwakiri
CPC classification number: A61B6/542 , A61B6/4233 , A61B6/4283 , H04N5/2351 , H04N5/32 , H04N5/353 , H04N5/374
Abstract: An X-ray image detecting device has an FPD having a matrix of pixels each for accumulating signal charge in accordance with an X-ray irradiation amount. An imaging area of the FPD is partitioned into a plurality of divided sections A to I. Each of the divided sections A to I has a short pixel for detecting X-ray irradiation. In a synchronization control for controlling the FPD in synchronization with detection of a start of X-ray emission from an X-ray source, a control unit for controlling the X-ray image detecting device uses all the divided sections A to I. In an automatic exposure control for stopping the X-ray emission from the X-ray source by detecting a total X-ray irradiation amount, the control unit uses part of the divided sections, e.g. the short pixels of the divided sections that are judged to be opposed to an object in the synchronization control.
Abstract translation: X射线图像检测装置具有按照X射线照射量累积信号电荷的像素矩阵的FPD。 FPD的成像区域被划分为多个分割区域A至I.分割区域A至I中的每一个具有用于检测X射线照射的短像素。 在与从X射线源开始的X射线发射的检测同步地控制FPD的同步控制中，用于控制X射线图像检测装置的控制单元使用所有分割部分A至I.在 通过检测总X射线照射量来停止来自X射线源的X射线发射的自动曝光控制，控制单元使用分割部分的一部分，例如 被判断为与同步控制中的对象相对的分割部分的短像素。
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公开(公告)号：US11064966B2
公开(公告)日：2021-07-20
申请号：US16727849
申请日：2019-12-26
Applicant: FUJIFILM Corporation
Inventor： Naoto Iwakiri , Kouichi Kitano , Syo Shimizukawa
Abstract: In an AED operation of detecting irradiation start of X-rays, a control unit of an electronic cassette selectively outputs the analog voltage signal from a part of the charge amplifiers including a detection CA connected to the detection channel of a detection pixel for irradiation start detection among the plurality of CAs connected to the MUX, to the ADC, causes the ADC to perform only the AD conversion process for the analog voltage signal selectively output from the multiplexer, and reduces the number of pulses NPU_A per unit time in a clock signal defining an operation timing of the ADC compared to that in the image reading operation.
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公开(公告)号：US10992885B2
公开(公告)日：2021-04-27
申请号：US16726967
申请日：2019-12-26
Applicant: FUJIFILM Corporation
Inventor： Naoto Iwakiri , Kouichi Kitano , Syo Shimizukawa
IPC: H01L27/146 , H04N5/32 , A61B6/00 , G01T1/24 , G01T7/00
Abstract: A control unit of an electronic cassette has a function of switching a power supply state to an ADC between an operating state corresponding to a first state in which first power is supplied and a non-operating state corresponding to a second state in which second power that is lower than the first power per unit time is supplied. The control unit reduces the number of ADCs in the operating state per unit time T in an AED operation for detecting the start of the emission of X-rays to be less than that in an image reading operation for outputting an X-ray image provided for diagnosis.
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Patent Agency Ranking
公开(公告)号：US10667670B2
公开(公告)日：2020-06-02
申请号：US14290480
申请日：2014-05-29
Applicant: FUJIFILM CORPORATION
Inventor： Yasunori Ohta , Naoyuki Nishino , Haruyasu Nakatsugawa , Naoto Iwakiri , Kouichi Kitano
Abstract: In a portable apparatus of a medical system, in a case where an operation unit receives an operation from a physician on the basis of the display contents of a display unit, the medical apparatus controlled as a result of the operation of the operation unit by an operator is defined by an operation control unit, and a signal in response to the operation contents received by the operation unit is transmitted from a transmission unit to the defined medical apparatus.
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公开(公告)号：US09316746B2
公开(公告)日：2016-04-19
申请号：US14228638
申请日：2014-03-28
Applicant: FUJIFILM Corporation
Inventor： Naoyuki Nishino , Yasunori Ohta , Haruyasu Nakatsugawa , Kouichi Kitano , Naoto Iwakiri
CPC classification number: G01T1/17 , A61B6/4007
Abstract: The present invention pertains to a radiography system and a radiography method. A radiation output device has a plurality of radiation sources disposed along a predetermined plane. Also, in accordance with whether an imaging state is a still image mode or a moving picture mode, at least one of the radiation sources that outputs radiation among the plurality of radiation sources is selected.
Abstract translation: 本发明涉及射线照相系统和射线照相方法。 辐射输出装置具有沿预定平面设置的多个辐射源。 此外，根据成像状态是静态图像模式还是运动图像模式，选择在多个辐射源中输出辐射的辐射源中的至少一个。
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18.发明授权Radiographic imaging device, radiographic imaging system, control method, and non-transitory computer readable medium 有权射线成像设备，放射成像系统，控制方法和非暂时性计算机可读介质公开(公告)号：US08970755B2
公开(公告)日：2015-03-03
申请号：US14478833
申请日：2014-09-05
Applicant: FUJIFILM Corporation
Inventor： Naoyuki Nishino , Naoto Iwakiri , Kouichi Kitano , Yasunori Ohta , Haruyasu Nakatsugawa
IPC: H01L27/146 , G01T1/20 , H04N3/14 , G01T1/24
CPC classification number: H01L27/14612 , A61B6/42 , A61B6/4233 , A61B6/4283 , A61B6/486 , A61B6/488 , A61B6/54 , A61B6/542 , A61B6/56 , A61B6/585 , G01T1/2018 , G01T1/24 , H01L27/14609 , H01L27/14676 , H04N5/32 , H04N5/357 , H04N5/365 , H04N5/3745
Abstract: The present invention may suppress feedthrough components in video imaging. Namely, TFT driving waveforms are plurally overlapped, and an integration period of capacitors C of amplification circuits is set so as to encompass a generation period of a feedthrough component (OFF), a generation period of a feedthrough component (ON), and a period in which charges (a signal component) are read out from storage capacitors of pixels by ON states of the TFTs. A number of driving waveforms to be overlapped is determined in accordance with a frame rate, the integration period and a reset period, or the like.
Abstract translation: 本发明可以抑制视频成像中的馈通分量。 即，TFT驱动波形多重叠，并且放大电路的电容器C的积分周期被设定为包含馈通分量（OFF）的产生周期，馈通分量（ON）的产生周期，以及周期 其中通过TFT的ON状态从像素的存储电容器读出电荷（信号分量）。 要重叠的多个驱动波形根据帧速率，积分周期和复位周期等来确定。
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19.发明授权公开(公告)号：US08933413B2
公开(公告)日：2015-01-13
申请号：US14267192
申请日：2014-05-01
Applicant: FUJIFILM Corporation
Inventor： Kouichi Kitano , Yasunori Ohta , Kentaro Noma , Naoto Iwakiri , Katsumi Shimada , Keita Watanabe , Shou Shimizukawa , Takahiro Iwamoto
CPC classification number: A61B6/548 , A61B6/4233 , A61B6/4266 , A61B6/467 , G01N23/04 , G01T1/247 , G06T7/0012 , H01L27/14663 , H01L27/14676 , H04N5/217 , H04N5/32 , H04N5/37213 , H04N5/374 , H04N5/378 , H04N7/18
Abstract: A radiological image-capturing device includes: a first read control section that executes a first read mode in which electric signals stored in a plurality of pixels are read out simultaneously in units of a plurality of rows; and an emission-start determining section that determines that the emission of radiation from a radiation source onto an image-capturing panel has started when the values of the electric signals read by the first read control section have become greater than an arbitrarily settable threshold. If it is determined by the emission-start determining section that the emission of the radiation has started, the first read control section terminates the reading of the electric signals, and thereby brings the image-capturing panel into an exposure state.
Abstract translation: 放射线图像捕获装置包括：执行第一读取模式的第一读取控制部分，其中以多个行为单位同时读出存储在多个像素中的电信号; 以及发射开始判定部，其在由所述第一读取控制部读取的电信号的值变得大于任意设定的阈值时，判定从所述照射源向所述摄像面板发射的放射线已经开始。 如果由发光开始确定部确定发射的辐射已经开始，则第一读取控制部分终止电信号的读取，从而使图像拍摄面板成为曝光状态。
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公开(公告)号：US08903048B2
公开(公告)日：2014-12-02
申请号：US14080575
申请日：2013-11-14
Applicant: FUJIFILM Corporation
Inventor： Kouichi Kitano , Naoyuki Nishino , Yasunori Ohta , Naoto Iwakiri , Haruyasu Nakatsugawa
CPC classification number: A61B6/542 , A61B6/4233 , A61B6/4283 , A61B6/56 , A61B8/54
Abstract: An X-ray imaging apparatus includes an FPD and short-circuited pixels. The FPD has pixels arranged in arrays for detecting an X-ray image. The short-circuited pixels detect a radiation dose of X-rays in the FPD. The X-ray imaging apparatus is changed over between first and second operating modes. The first operating mode is selected in case of combining with an X-ray generating apparatus with communication compatibility, and performs an exposure control for controlling a total radiation dose according to a detection signal from the short-circuited pixels. The second operating mode is selected in case of combining with an X-ray generating apparatus with communication incompatibility, and performs control of start synchronization for synchronizing operation of the FPD with the emission start of X-rays according to a detection signal from the short-circuited pixels. Thus, control of the X-ray imaging apparatus is changed over appropriately.
Abstract translation: X射线成像装置包括FPD和短路像素。 FPD具有排列成用于检测X射线图像的阵列的像素。 短路像素检测FPD中X射线的辐射剂量。 X射线成像装置在第一和第二操作模式之间切换。 在与具有通信兼容性的X射线产生装置组合的情况下选择第一操作模式，并且根据来自短路像素的检测信号执行用于控制总辐射剂量的曝光控制。 在与具有通信不兼容性的X射线产生装置组合的情况下选择第二操作模式，并且根据来自短路的检测信号，执行FPD的同步操作的开始同步的控制与X射线的发射开始， 电路像素。 因此，适当地改变对X射线摄像装置的控制。
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