公开(公告)号：US20120199750A1

公开(公告)日：2012-08-09

申请号：US13341370

申请日：2011-12-30

Applicant: Kiyoshi KONDOU

Inventor： Kiyoshi KONDOU

IPC: G01T1/24

CPC classification number: H04N5/32 ,  H04N5/361 ,  H04N5/3653

Abstract: In a radiography system, after a radiation dose, signal charges are accumulated in sensor pixels in an imaging area of a flat panel detector corresponding to the dosed amounts of radioactive rays on the pixels. The signal charges are read out from the pixels and converted into voltage signals representative of density levels of respective pixels of a radiographic image. Before reading the signal charges, a dose profile representative of distribution of the dosed amounts of radioactive rays is measured by leak currents from the pixels or bias currents through bias lines for applying a bias voltage to the pixels. Based on the contrast or difference between the maximum value and the minimum value in the dose profile, a gain of amplifiers for the voltage signals is determined such that the gain increases with decreasing contrast.

Abstract translation: 在放射线照相系统中，在辐射剂量之后，信号电荷积聚在对应于像素上的放射线射入量的平板检测器的成像区域中的传感器像素中。 从像素读出信号电荷，并将其转换成表示放射线照相图像的各个像素的浓度水平的电压信号。 在读取信号电荷之前，通过来自像素的泄漏电流或通过用于向像素施加偏置电压的偏置线的偏置电流来测量代表放射线射入量的分布的剂量分布。 基于剂量分布图中的最大值和最小值之间的对比度或差异，确定电压信号的放大器的增益，使得增益随着对比度的降低而增加。

公开(公告)号：US20120138807A1

公开(公告)日：2012-06-07

申请号：US13307901

申请日：2011-11-30

Applicant: Kiyoshi KONDOU

Inventor： Kiyoshi KONDOU

IPC: G01T1/24

CPC classification number: G01T1/247 ,  G01T1/2018 ,  H04N5/32 ,  H04N5/357 ,  H04N5/374

Abstract: A FPD includes a signal processing circuit and noise detecting elements provided for each group containing plural columns of pixels. The signal processing circuit converts signal charges accumulated in the pixels into electric signals and outputs the electric signals. Each of the noise detecting elements has the same structure as that of the pixel, but does not have a function of accumulating the electric charges. A voltage signal of the noise detecting element represents noise components. A subtractor subtracts the voltage signal of the noise detecting elements from a voltage signal of the pixels which is outputted from the noise processing circuit.

Abstract translation: FPD包括为包含多列像素的每个组提供的信号处理电路和噪声检测元件。 信号处理电路将像素中积累的信号电荷转换为电信号并输出​​电信号。 每个噪声检测元件具有与像素相同的结构，但不具有累积电荷的功能。 噪声检测元件的电压信号表示噪声分量。 减法器从噪声处理电路输出的像素的电压信号中减去噪声检测元件的电压信号。

公开(公告)号：US20100135464A1

公开(公告)日：2010-06-03

申请号：US12626697

申请日：2009-11-27

Applicant: Naoyuki NISHINO ,  Keiji TSUBOTA ,  Yasunori OHTA ,  Yutaka YOSHIDA ,  Takashi SHOJI ,  Kiyoshi KONDOU ,  Yuji KURACHI

Inventor： Naoyuki NISHINO ,  Keiji TSUBOTA ,  Yasunori OHTA ,  Yutaka YOSHIDA ,  Takashi SHOJI ,  Kiyoshi KONDOU ,  Yuji KURACHI

IPC: H05G1/56

CPC classification number: A61B6/00 ,  A61B6/4283 ,  A61B6/548 ,  G01T1/00

Abstract: A portable radiographic imaging device includes an operation unit, a controller, and an execution unit. The operation unit is operated when a target function is selected from plural different functions relating to radiographic image capturing. When a first condition, that expresses that a predetermined region has been placed at a predetermined placement portion, is established, the controller carries out control such that a function that should be effective when the first condition is established is selected. When a second condition, that expresses that the predetermined region is not placed at the placement portion, is established, the controller carries out control such that a function that should be effective when the second condition is established is selected. When the operation unit is operated, the execution unit executes a function that is controlled by the controller to be selected.

Abstract translation: 便携式放射线照相成像装置包括操作单元，控制器和执行单元。 当从与放射线图像拍摄相关的多个不同功能中选择目标功能时，操作单元被操作。 当建立表示预定区域已经被放置在预定放置部分的第一条件时，控制器执行控制，使得选择在建立第一条件时应当有效的功能。 当建立表示预定区域未放置在放置部分的第二条件时，控制器执行控制，使得当建立第二条件时应当有效的功能被选择。 当操作单元被操作时，执行单元执行由要被选择的控制器控制的功能。

公开(公告)号：US20120211662A1

公开(公告)日：2012-08-23

申请号：US13358333

申请日：2012-01-25

Applicant: Shou SHIMIZUKAWA ,  Kiyoshi KONDOU

Inventor： Shou SHIMIZUKAWA ,  Kiyoshi KONDOU

IPC: G01T1/20 ,  G01T1/00

CPC classification number: A61B6/4283 ,  A61B6/4208 ,  A61B6/4233 ,  H04N5/232 ,  H04N5/32 ,  H04N5/367

Abstract: A radiographic image capturing apparatus includes a radiation conversion panel for converting radiation into radiographic images, an A/D converter for performing an A/D conversion process on image signals depending on the radiographic image output from the radiation conversion panel, and a number-of-sampling determiner for determining a number of times of sampling for the A/D conversion process performed by the A/D converter, based on the dose of radiation, which is applied to the radiation conversion panel.

Abstract translation: 放射线照相图像拍摄设备包括用于将辐射转换成放射线照相图像的辐射转换面板，用于根据从辐射转换面板输出的放射线照相图像对图像信号执行A / D转换处理的A / D转换器，以及多个 采样确定器，用于基于施加到辐射转换面板的辐射剂量来确定由A / D转换器执行的A / D转换处理的采样次数。

公开(公告)号：US20120140892A1

公开(公告)日：2012-06-07

申请号：US13308090

申请日：2011-11-30

Applicant: Kiyoshi KONDOU

Inventor： Kiyoshi KONDOU

IPC: H05G1/64

CPC classification number: G01T1/17 ,  G01T1/2018 ,  G01T1/24 ,  G01T1/2928 ,  H04N5/32 ,  H04N5/353 ,  H04N5/374

Abstract: An FPD is provided with an ammeter for measuring current on a wired connection of a bias line that applies a bias voltage to pixels. A control circuit compares the measured value of the ammeter and a threshold value. When the measured value of the ammeter is equal to or larger than the threshold value, the control circuit judges that an emission of X-rays from an X-ray source is started. Until before the start of the X-ray irradiation is detected, the control circuit stops supplying electric power to a signal processing circuit, and turns on all TFTs. Once the start of the X-ray irradiation is detected, the control circuit turns off all the TFTs, and makes the FPD shift to a charge accumulation operation. Thereafter, the control circuit turns on a processing power source to start supplying the electric power to the signal processing circuit.

Abstract translation: FPD设置有用于测量向像素施加偏置电压的偏置线的有线连接上的电流的电流表。 控制电路将电流表的测量值与阈值进行比较。 当电流表的测量值等于或大于阈值时，控制电路判断从X射线源的X射线的发射开始。 直到检测到X射线照射开始之前，控制电路停止向信号处理电路供电，并打开所有TFT。 一旦检测到X射线照射的开始，则控制电路关闭所有TFT，并使FPD移动到电荷累积操作。 此后，控制电路接通处理电源，开始向信号处理电路供电。

公开(公告)号：US20100140490A1

公开(公告)日：2010-06-10

申请号：US12626694

申请日：2009-11-27

Applicant: Keiji TSUBOTA ,  Takashi SHOJI ,  Yutaka YOSHIDA ,  Naoyuki NISHINO ,  Kiyoshi KONDOU ,  Yuji KURACHI ,  Yasunori OHTA

Inventor： Keiji TSUBOTA ,  Takashi SHOJI ,  Yutaka YOSHIDA ,  Naoyuki NISHINO ,  Kiyoshi KONDOU ,  Yuji KURACHI ,  Yasunori OHTA

IPC: G01T1/16

CPC classification number: G01T1/2928 ,  G01T1/17 ,  G01T1/247

Abstract: There is provided a radiographic imaging device including: a radiation detector; a switching power supply; a storage section; a reading section; and a control section that controls the switching power supply so as to implement switching control and cause electricity to be accumulated in the storage section at a time when charge is not being read by the reading section, and stop switching control at a time when charge is being read by the reading section.

Abstract translation: 提供了一种放射线照相成像装置，包括：放射线检测器; 一个开关电源; 存储部分; 阅读部分 以及控制部分，其控制开关电源以便在读取部分未读取电荷的时刻实现切换控制并且在存储部分中积累电力，并且在充电为止时停止切换控制 由阅读部分阅读。