公开(公告)号：US10074679B2

公开(公告)日：2018-09-11

申请号：US14606764

申请日：2015-01-27

Applicant: FUJIFILM Corporation

Inventor： Takashi Tajima

IPC: H05G1/38 ,  H05G1/44 ,  H01L27/146 ,  G01T1/16 ,  G01T7/00 ,  H05G1/28 ,  H04N5/32 ,  A61B6/00

CPC classification number: H01L27/14605 ,  A61B6/4233 ,  A61B6/4283 ,  A61B6/542 ,  A61B6/563 ,  G01T1/1603 ,  G01T7/005 ,  H01L27/14603 ,  H01L27/14607 ,  H01L27/14634 ,  H04N5/32 ,  H05G1/28 ,  H05G1/38 ,  H05G1/44

Abstract: A sensor panel of an electric cassette is provided with detection pixels for AEC to stop X-ray irradiation when an accumulated dose of the X-rays reaches a target dose. A plurality of small blocks each containing a plurality of the detection pixels for calculating the accumulated dose are disposed in each of a plurality of large blocks obtained by dividing an imaging area. The small blocks are disposed so as not to be overlapped with each other in a Y direction.

公开(公告)号：US20180228011A1

公开(公告)日：2018-08-09

申请号：US15888219

申请日：2018-02-05

Applicant: Canon Medical Systems Corporation

Inventor： Hiroshi Hirayama ,  Sanae Harada ,  Takenori Mizuno ,  Masahiro Karahashi

IPC: H05G1/32 ,  H01J35/06 ,  H01J35/08 ,  H05G1/10

CPC classification number: H05G1/32 ,  H01J35/04 ,  H01J35/06 ,  H01J35/08 ,  H05G1/10 ,  H05G1/38 ,  H05G1/58

Abstract: According to one embodiment, an X-ray computed tomography apparatus includes an X-ray tube, a high voltage power supply, and focus size control circuitry. The X-ray tube includes a cathode, an anode, and a deflector configured to deflect the electrons from the cathode. The high voltage power supply generates a tube voltage to be applied between the cathode and the anode. The focus size control circuitry controls a focus size formed in the anode by applying to the deflector a deflecting voltage of a deflecting voltage value based on a tube voltage value of the tube voltage and a predetermined size, in order to form a focus of the predetermined size in the anode during the period where the tube voltage is applied by the high voltage power supply.

公开(公告)号：US09983151B2

公开(公告)日：2018-05-29

申请号：US15320047

申请日：2015-05-07

Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC

Inventor： Christopher P. J. Barty

IPC: H05G2/00 ,  G01N23/04 ,  G01N9/24

CPC classification number: G01N23/04 ,  A61B6/06 ,  A61B6/405 ,  A61B6/4241 ,  A61B6/4258 ,  A61B6/481 ,  A61B6/482 ,  A61B6/542 ,  A61B6/545 ,  A61B6/585 ,  G01N9/24 ,  G01N23/087 ,  G01N2223/206 ,  G01N2223/405 ,  G01N2223/408 ,  G01N2223/423 ,  H01S3/0085 ,  H01S3/10015 ,  H01S3/1003 ,  H05G1/38 ,  H05G1/44 ,  H05G1/56 ,  H05G2/00 ,  H05G2/008

Abstract: Ultralow-dose, x-ray or gamma-ray imaging is based on fast, electronic control of the output of a laser-Compton x-ray or gamma-ray source (LCXS or LCGS). X-ray or gamma-ray shadowgraphs are constructed one (or a few) pixel(s) at a time by monitoring the LCXS or LCGS beam energy required at each pixel of the object to achieve a threshold level of detectability at the detector. An example provides that once the threshold for detection is reached, an electronic or optical signal is sent to the LCXS/LCGS that enables a fast optical switch that diverts, either in space or time the laser pulses used to create Compton photons. In this way, one prevents the object from being exposed to any further Compton x-rays or gamma-rays until either the laser-Compton beam or the object are moved so that a new pixel location may be illumination.

公开(公告)号：US09036785B2

公开(公告)日：2015-05-19

申请号：US13265539

申请日：2009-04-22

Applicant: Tasuku Saito ,  Hideki Fujii

Inventor： Tasuku Saito ,  Hideki Fujii

IPC: H05G1/32 ,  H05G1/10 ,  H01J35/26 ,  H05G1/38 ,  H05G1/46

CPC classification number: H05G1/10 ,  H01J35/26 ,  H05G1/32 ,  H05G1/38 ,  H05G1/46

Abstract: In a high-voltage apparatus according to this invention, a predetermined voltage is applied to a rotating anode after waiting until the number of rotations increases to such an extent that the rotating anode is not damaged. That is, X-rays of desired intensity are already outputted from a point of time when the voltage is applied to the rotating anode. Therefore, diagnosis can be performed immediately after the voltage is applied to the rotating anode. That is, unlike the prior art, there is no need to wait until X-ray intensity becomes suitable for diagnosis after X-ray emission is started, and there is no need to irradiate the patient with unnecessary X-rays. Therefore, the patient can be inhibited from being irradiated with excessive X-rays (with an improvement made in a response from when the operator gives instructions for starting fluoroscopy until emission of X-rays suitable for diagnosis).

Abstract translation: 在根据本发明的高电压装置中，在等待直到转数增加到旋转阳极未被损坏的程度之后，将预定电压施加到旋转阳极。 也就是说，从施加到旋转阳极的电压的时刻起已经输出了所需强度的X射线。 因此，可以在将电压施加到旋转阳极之后立即进行诊断。 也就是说，与现有技术不同，在X射线发射开始之后，不需要等待X射线强度变得适合于诊断，并且不需要向患者照射不必要的X射线。 因此，可以抑制患者被过量的X射线照射（当从操作者给出用于开始荧光透视的指示直到发射适合于诊断的X射线时的响应而改善）。

公开(公告)号：US20140185764A1

公开(公告)日：2014-07-03

申请号：US14138918

申请日：2013-12-23

Applicant: CANON KABUSHIKI KAISHA

Inventor： Katsuro Takenaka ,  Toshio Kameshima ,  Tomoyuki Yagi ,  Sho Sato ,  Atsushi Iwashita ,  Eriko Sato ,  Hideyuki Okada ,  Takuya Ryu

IPC: A61B6/00

CPC classification number: A61B6/542 ,  A61B6/42 ,  H04N5/32 ,  H05G1/38

Abstract: An imaging apparatus has an AEC function that can prevent irregularities in photographed images, without being increased in size. The imaging apparatus comprises a plurality of pixels arranged in a matrix shape, each of the plurality of pixels including a conversion element for converting radiation or light into an electric charge, a plurality of lines that are connected to the plurality of pixel units and that extend in different directions to each other, a current monitor circuit that monitors currents flowing in the plurality of lines, and an arithmetic unit that calculates a two-dimensional distribution by performing back-projection processing with respect to the currents flowing in the plurality of lines monitored by the current monitor circuit.

Abstract translation: 成像装置具有能够防止拍摄图像中的不规则性而不增加尺寸的AEC功能。 成像装置包括以矩阵形状排列的多个像素，所述多个像素中的每一个包括用于将辐射或光转换成电荷的转换元件，连接到所述多个像素单元并且延伸的多条线 在彼此不同的方向上，监视在多条线路中流动的电流的电流监视电路，以及运算单元，该运算单元通过对在所监视的多条线路中流动的电流进行反向投影处理来计算二维分布 由电流监视电路。

公开(公告)号：US08761864B2

公开(公告)日：2014-06-24

申请号：US11521192

申请日：2006-09-14

Applicant: John Michael Sabol ,  Kadri Nizar Jabri ,  Renuka Uppaluri ,  Gopal B. Avinash

Inventor： John Michael Sabol ,  Kadri Nizar Jabri ,  Renuka Uppaluri ,  Gopal B. Avinash

IPC: A61B6/03 ,  A61B6/00 ,  A61B6/02 ,  H05G1/38 ,  A61B5/113 ,  A61B5/00

CPC classification number: A61B6/025 ,  A61B5/0402 ,  A61B5/113 ,  A61B5/721 ,  A61B6/032 ,  A61B6/405 ,  A61B6/482 ,  A61B6/503 ,  A61B6/505 ,  A61B6/508 ,  A61B6/527 ,  A61B6/5288 ,  A61B6/541 ,  A61B6/542 ,  H05G1/38

Abstract: A method includes automatically determining at least one gating signal based on a physiological signal from a subject being imaged by an imaging system, automatically determining, based upon prior analysis and knowledge of the imaging system's capabilities, a timing of each of a plurality of exposures within a single or multiple cycles of the physiologic signal, and performing the multiple acquisitions.

Abstract translation: 一种方法包括基于来自被成像系统成像的对象的生理信号自动确定至少一个选通信号，基于先前分析和成像系统能力的知识，自动确定多个曝光内的每个曝光的时间 生理信号的单个或多个周期，并执行多次采集。

公开(公告)号：US20130279661A1

公开(公告)日：2013-10-24

申请号：US13865618

申请日：2013-04-18

Applicant: CANON KABUSHIKI KAISHA

Inventor： Toshikazu Tamura ,  Taro Hiroike ,  Tadahiko Iijima ,  Hirokazu Ohguri ,  Toshiya Ishioka

IPC: H05G1/56

CPC classification number: A61B6/542 ,  A61B6/42 ,  A61B6/4208 ,  A61B6/4233 ,  A61B6/4266 ,  A61B6/4283 ,  A61B6/4405 ,  A61B6/4411 ,  A61B6/4441 ,  A61B6/465 ,  A61B6/54 ,  A61B6/548 ,  A61B6/56 ,  A61B6/563 ,  A61B6/566 ,  H05G1/30 ,  H05G1/32 ,  H05G1/34 ,  H05G1/38 ,  H05G1/40 ,  H05G1/42 ,  H05G1/44 ,  H05G1/46 ,  H05G1/56

Abstract: A radiation imaging control apparatus includes an exposure switch configured to instruct radiation emission, an acquisition unit configured to acquire a first signal indicating that the exposure switch is pressed, a first connection unit configured to detachably connect with a control unit of a radiant ray detector to transmit a second signal indicating the driving state of the radiant ray detector, a second connection unit configured to detachably connect with a control unit of a radiant ray generation apparatus to transmit a specific signal, and a control unit configured to perform control to output the specific signal via the second connection unit upon acquisition of the first and second signals, wherein the second connection unit is a connector for making wired connection.

Abstract translation: 一种放射线成像控制装置，包括：被配置为指示放射线发射的曝光开关，被配置为获取表示曝光开关被按压的第一信号的获取单元，被配置为与辐射线检测器的控制单元可拆卸地连接的第一连接单元， 发送指示所述辐射线检测器的驱动状态的第二信号;第二连接单元，被配置为可拆卸地与辐射线发生装置的控制单元连接以发送特定信号;以及控制单元，被配置为执行控制以输出所述特定信号 在获取第一和第二信号时通过第二连接单元发送信号，其中第二连接单元是用于进行有线连接的连接器。

公开(公告)号：US07110501B2

公开(公告)日：2006-09-19

申请号：US11255939

申请日：2005-10-24

Applicant: Junichi Yamayoshi

Inventor： Junichi Yamayoshi

IPC: H05G1/56

CPC classification number: A61B6/00 ,  A61B6/4233 ,  A61B6/5235 ,  H05G1/38 ,  H05G1/44 ,  H05G1/64

Abstract: This invention is to provide a system which has a plurality of sensor units and can efficiently sense an image. A sensing system includes a plurality of sensor units, a plurality of selection switches that are arranged in correspondence with the plurality of sensor units, respectively, and select corresponding sensor units, and a control circuit for setting a sensor unit selected by the selection switch in a ready state and an unselected sensor unit in a sleep state.

公开(公告)号：US20040071264A1

公开(公告)日：2004-04-15

申请号：US10642232

申请日：2003-08-18

Applicant: Canon Kabushiki Kaisha

Inventor： Junichi Yamayoshi

IPC: H05G001/64

CPC classification number: A61B6/00 ,  A61B6/4233 ,  A61B6/5235 ,  H05G1/38 ,  H05G1/44 ,  H05G1/64

Abstract: This invention is to provide a system which has a plurality of sensor units and can efficiently sense an image. A sensing system includes a plurality of sensor units, a plurality of selection switches that are arranged in correspondence with the plurality of sensor units, respectively, and select corresponding sensor units, and a control circuit for setting a sensor unit selected by the selection switch in a ready state and an unselected sensor unit in a sleep state.

Abstract translation: 本发明提供一种具有多个传感器单元并且可以有效地感测图像的系统。 感测系统包括多个传感器单元，分别与多个传感器单元相对应地布置的多个选择开关，并且选择相应的传感器单元，以及控制电路，用于设置由选择开关选择的传感器单元 处于睡眠状态的就绪状态和未选择的传感器单元。

公开(公告)号：US4628355A

公开(公告)日：1986-12-09

申请号：US527553

申请日：1983-08-29

Applicant: Ichiro Ogura ,  Motomu Suzuki ,  Senzo Fujii ,  Michitaka Honda

Inventor： Ichiro Ogura ,  Motomu Suzuki ,  Senzo Fujii ,  Michitaka Honda

IPC: G03B42/02 ,  A61B6/00 ,  G01N23/04 ,  H04N5/32 ,  H05G1/38 ,  H05G1/64

CPC classification number: H05G1/64 ,  H04N5/32 ,  H05G1/38

Abstract: A diagnostic X-ray apparatus emitting pulsed X-ray radiation includes a processor for performing digital X-ray subtraction of a previous mask image from current images. The apparatus includes circuitry for digitization of the video signals from an image intensifier-TV chain, digital subtraction to obtain digital difference signals, and subsequent reconversion of the resultant digital difference video signals to analog signals. Pulsed X-ray exposures are performed during the blanking periods of the TV camera following which the television fields immediately following the pulsed X-ray exposure are scanned and read out, and are supplied to the processor for performing the digital X-ray subtraction.

Abstract translation: 发射脉冲X射线辐射的诊断X射线装置包括用于从当前图像执行先前掩模图像的数字X射线相减的处理器。 该装置包括用于从图像增强器-TV链数字化视频信号的电路，数字减法以获得数字差分信号，以及随后将所得到的数字差分视频信号重新转换为模拟信号。 在电视摄像机的消隐期间执行脉冲X射线曝光，随后扫描并读出紧接在脉冲X射线曝光之后的电视场，并将其提供给处理器进行数字X射线减法。