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公开(公告)号：US09756267B2
公开(公告)日：2017-09-05
申请号：US13948699
申请日：2013-07-23
CPC分类号： H04N5/357 , H04N5/2173 , H04N5/32 , H04N5/363 , H04N5/3653 , H04N5/378
摘要： An image sensor driving apparatus extracts an image signal from an image sensor including a plurality of photoelectric conversion elements two-dimensionally arrayed, and includes a conversion unit which converts the image signal into digital data by performing offset correction for the image signal. The apparatus obtains digital data corresponding to a first sampling count by causing the conversion unit to process a reference voltage signal in accordance with a synchronization signal which determines an imaging frame rate, and obtains digital data corresponding to a second sampling count by causing the conversion unit to process a reference voltage signal every time extracting an image signal from a photoelectric conversion element group obtained by dividing a plurality of photoelectric conversion elements. The apparatus generates a correction value used for offset correction based on the obtained digital data corresponding to the first and second sampling counts.
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2.发明申请公开(公告)号：US20140036118A1
公开(公告)日：2014-02-06
申请号：US13948699
申请日：2013-07-23
IPC分类号： H04N5/217
CPC分类号： H04N5/357 , H04N5/2173 , H04N5/32 , H04N5/363 , H04N5/3653 , H04N5/378
摘要： An image sensor driving apparatus extracts an image signal from an image sensor including a plurality of photoelectric conversion elements two-dimensionally arrayed, and includes a conversion unit which converts the image signal into digital data by performing offset correction for the image signal. The apparatus obtains digital data corresponding to a first sampling count by causing the conversion unit to process a reference voltage signal in accordance with a synchronization signal which determines an imaging frame rate, and obtains digital data corresponding to a second sampling count by causing the conversion unit to process a reference voltage signal every time extracting an image signal from a photoelectric conversion element group obtained by dividing a plurality of photoelectric conversion elements. The apparatus generates a correction value used for offset correction based on the obtained digital data corresponding to the first and second sampling counts.
摘要翻译： 图像传感器驱动装置从包括多个二维排列的光电转换元件的图像传感器提取图像信号，并且包括通过对图像信号执行偏移校正将图像信号转换为数字数据的转换单元。 该设备通过使转换单元根据确定成像帧速率的同步信号处理参考电压信号来获得对应于第一采样计数的数字数据，并通过使转换单元获得与第二采样计数相对应的数字数据 每当从通过划分多个光电转换元件获得的光电转换元件组提取图像信号时，处理参考电压信号。 该装置基于获得的与第一和第二采样计数相对应的数字数据产生用于偏移校正的校正值。
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3.发明授权Radiation imaging apparatus, control method therefor, and radiation inspection apparatus 有权辐射成像装置及其控制方法和放射线检查装置公开(公告)号：US09578262B2
公开(公告)日：2017-02-21
申请号：US14590139
申请日：2015-01-06
发明人： Kanako Dowaki
CPC分类号： H04N5/32 , G01T1/247 , H04N5/343 , H04N5/3456 , H04N5/3559
摘要： A radiation imaging apparatus, comprising a plurality of sensors, a holding unit configured to hold a signal level of each sensor, a monitor unit configured to monitor the signal levels, and a control unit configured to control each sensor so as to detect radiation with a first sensitivity and a second sensitivity higher than the first sensitivity, wherein the control unit performs first control to cause the monitor unit to monitor signal levels with the second sensitivity, and performs second control to select some sensors out of the plurality of sensors based on monitoring results obtained in the first control.
摘要翻译： 一种辐射成像装置，包括多个传感器，保持单元，其被配置为保持每个传感器的信号电平;监视单元，被配置为监视信号电平;以及控制单元，被配置为控制每个传感器以便以 第一灵敏度和比第一灵敏度高的第二灵敏度，其中控制单元执行第一控制以使监视单元以第二灵敏度监视信号电平，并且基于监视执行第二控制以从多个传感器中选择一些传感器 在第一个控制中获得的结果。
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4.发明申请RADIATION IMAGING APPARATUS, METHOD OF DRIVING THE SAME, AND RADIATION INSPECTION APPARATUS 有权辐射成像装置，其驱动方法和辐射检查装置公开(公告)号：US20150296151A1
公开(公告)日：2015-10-15
申请号：US14669182
申请日：2015-03-26
发明人： Kanako Dowaki , Kazumasa Matsumoto
CPC分类号： H04N5/343 , H04N5/23245 , H04N5/351 , H04N5/3765 , H04N5/378
摘要： A radiation imaging apparatus comprising a sensor and a driving unit, the sensor including a detection element and a holding unit, wherein the driving unit drives the sensor so as to perform a first operation of making a first sampling unit sample a first signal corresponding to a voltage of the holding unit which has changed in accordance with a dose of radiation detected by the detection element after the holding unit holds a voltage corresponding to a signal from the detection element when a first reset unit resets the detection element, and a second operation, after the first operation, of making the first reset unit reset the detection element after a second sampling unit samples a second signal corresponding to a voltage of the reset holding unit while a second reset unit resets the holding unit.
摘要翻译： 一种辐射成像装置，包括传感器和驱动单元，所述传感器包括检测元件和保持单元，其中所述驱动单元驱动所述传感器，以便执行第一操作，使得第一采样单元采样对应于 在第一复位单元复位检测元件时，保持单元保持与来自检测元件的信号相对应的电压之后，根据由检测元件检测到的放射线量而发生变化的保持单元的电压和第二操作， 在第一操作之后，在第二复位单元复位保持单元之后，在第二采样单元对对应于复位保持单元的电压的第二信号进行采样之后使第一复位单元复位。
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公开(公告)号：US09565384B2
公开(公告)日：2017-02-07
申请号：US14619988
申请日：2015-02-11
IPC分类号： H04N5/3745 , H04N5/361 , H04N5/347
CPC分类号： H04N5/37457 , H04N5/347 , H04N5/361 , H04N5/37452
摘要： A radiation imaging apparatus includes: a radiation detection unit in which a plurality of photoelectric conversion units to convert radiation signals into charge signals and store the charge signals is located; a storage control unit configured to control the storage of the charge signals executed by the plurality of photoelectric conversion units; a reading control unit configured to control reading of the charge signals stored by the plurality of photoelectric conversion units; and a control unit configured to fix an indefinite potential generated at the radiation detection unit while at least one of the storage control of the charge signals by the storage control unit and the reading control of the charge signals by the reading control unit is not carried out.
摘要翻译： 辐射成像装置包括：放射线检测单元，其中定位将辐射信号转换成电荷信号并存储电荷信号的多个光电转换单元; 存储控制单元，被配置为控制由所述多个光电转换单元执行的所述电荷信号的存储; 读取控制单元，被配置为控制由所述多个光电转换单元存储的所述充电信号的读取; 以及控制单元，其被配置为固定在所述放射线检测单元处产生的不确定电位，同时由所述存储控制单元进行的所述充电信号的存储控制和所述读取控制单元的所述充电信号的读取控制中的至少一个不被执行 。
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公开(公告)号：US20140037056A1
公开(公告)日：2014-02-06
申请号：US13945068
申请日：2013-07-18
IPC分类号： G01N23/04
CPC分类号： G01N23/04 , A61B6/5258 , H04N5/32 , H04N5/361 , H04N5/363 , H04N5/3655
摘要： An imaging apparatus determines, based on a frame interval associated with imaging of the object, the number of output values to be measured, and inputs an electric signals of a given value to amplifiers to measure the determined number of output values during a time after a readout circuit performs a readout operation for a photoelectric conversion elements of one line and before the readout circuit performs a readout operation for the photoelectric conversion elements of the next one line, calculates a difference between the measured output value and a predetermined reference value, and corrects a measurement value of one line of the object by increasing or decreasing the measurement value by the difference.
摘要翻译： 成像装置基于与对象的成像相关联的帧间隔来确定要测量的输出值的数量，并且将给定值的电信号输入到放大器，以测量在确定的输出值之后的确定的输出值的数量 读出电路对一行的光电转换元件执行读出操作，并且在读出电路对下一行的光电转换元件执行读出操作之前，计算测量的输出值与预定的参考值之间的差，并校正 通过将测量值增加或减小该差异来对象的一行的测量值。
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7.发明申请公开(公告)号：US20170019617A1
公开(公告)日：2017-01-19
申请号：US15281448
申请日：2016-09-30
CPC分类号： H04N5/357 , H04N5/2173 , H04N5/32 , H04N5/363 , H04N5/3653 , H04N5/378
摘要： An image sensor driving apparatus extracts an image signal from an image sensor including a plurality of photoelectric conversion elements two-dimensionally arrayed, and includes a conversion unit which converts the image signal into digital data by performing offset correction for the image signal. The apparatus obtains digital data corresponding to a first sampling count by causing the conversion unit to process a reference voltage signal in accordance with a synchronization signal which determines an imaging frame rate, and obtains digital data corresponding to a second sampling count by causing the conversion unit to process a reference voltage signal every time extracting an image signal from a photoelectric conversion element group obtained by dividing a plurality of photoelectric conversion elements. The apparatus generates a correction value used for offset correction based on the obtained digital data corresponding to the first and second sampling counts.
摘要翻译： 图像传感器驱动装置从包括多个二维排列的光电转换元件的图像传感器提取图像信号，并且包括通过对图像信号执行偏移校正将图像信号转换为数字数据的转换单元。 该设备通过使转换单元根据确定成像帧速率的同步信号处理参考电压信号来获得对应于第一采样计数的数字数据，并通过使转换单元获得与第二采样计数相对应的数字数据 每当从通过划分多个光电转换元件获得的光电转换元件组提取图像信号时，处理参考电压信号。 该装置基于获得的与第一和第二采样计数相对应的数字数据产生用于偏移校正的校正值。
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公开(公告)号：US09482628B2
公开(公告)日：2016-11-01
申请号：US13945068
申请日：2013-07-18
CPC分类号： G01N23/04 , A61B6/5258 , H04N5/32 , H04N5/361 , H04N5/363 , H04N5/3655
摘要： An imaging apparatus determines, based on a frame interval associated with imaging of the object, the number of output values to be measured, and inputs electric signals of a given value to amplifiers to measure the determined number of output values during a time after a readout circuit performs a readout operation for the photoelectric conversion elements of one line and before the readout circuit performs a readout operation for the photoelectric conversion elements of the next one line, calculates a difference between the measured output value and a predetermined reference value, and corrects a measurement value of one line of the object by increasing or decreasing the measurement value by the difference.
摘要翻译： 成像装置基于与物体的成像相关联的帧间隔，确定要测量的输出值的数量，并且将放大器的给定值的电信号输入到放大器，以在读出后的时间内测量所确定的输出值的数量 电路对一行的光电转换元件执行读出操作，并且在读出电路对下一行的光电转换元件执行读出操作之前，计算测量的输出值与预定的参考值之间的差，并校正一个 通过增加或减少测量值的差异来测量物体的一行的测量值。
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9.发明申请RADIATION IMAGING APPARATUS, DRIVING METHOD FOR THE SAME, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM 有权辐射成像装置，其驱动方法以及非中间计算机可读介质公开(公告)号：US20150378034A1
公开(公告)日：2015-12-31
申请号：US14741565
申请日：2015-06-17
发明人： Kanako Dowaki , Kazumasa Matsumoto
CPC分类号： G01T1/2018 , G01T1/208 , H04N5/32 , H04N5/361
摘要： A radiation imaging apparatus, comprising a plurality of sensors and a driving unit, each sensor including a detection element, a sampling unit and a reset unit, wherein the driving unit performs an operation of causing the reset unit to initialize the detection element, an operation of causing the sampling unit to sample a signal from the detection element in accordance with radiation irradiation started after the operation of initializing, and an operation of outputting a signal sampled by the operation of sampling, and wherein the driving unit changes, in accordance with a frame rate, a timing of the operation of outputting while maintaining constant a time from the operation of initializing to the operation of sampling.
摘要翻译： 一种辐射成像装置，包括多个传感器和驱动单元，每个传感器包括检测元件，采样单元和复位单元，其中所述驱动单元执行使所述复位单元初始化所述检测元件的操作， 使得采样单元根据在初始化操作之后开始的辐射照射从检测元件采样信号，以及输出通过采样操作采样的信号的操作，并且其中驱动单元根据 帧速率，输出操作的定时，同时保持从初始化操作到采样操作的时间恒定。
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公开(公告)号：US20150156438A1
公开(公告)日：2015-06-04
申请号：US14619988
申请日：2015-02-11
IPC分类号： H04N5/3745 , H04N5/347 , H04N5/361
CPC分类号： H04N5/37457 , H04N5/347 , H04N5/361 , H04N5/37452
摘要： A radiation imaging apparatus includes: a radiation detection unit in which a plurality of photoelectric conversion units to convert radiation signals into charge signals and store the charge signals is located; a storage control unit configured to control the storage of the charge signals executed by the plurality of photoelectric conversion units; a reading control unit configured to control reading of the charge signals stored by the plurality of photoelectric conversion units; and a control unit configured to fix an indefinite potential generated at the radiation detection unit while at least one of the storage control of the charge signals by the storage control unit and the reading control of the charge signals by the reading control unit is not carried out.
摘要翻译： 辐射成像装置包括：放射线检测单元，其中定位将辐射信号转换成电荷信号并存储电荷信号的多个光电转换单元; 存储控制单元，被配置为控制由所述多个光电转换单元执行的所述电荷信号的存储; 读取控制单元，被配置为控制由所述多个光电转换单元存储的所述充电信号的读取; 以及控制单元，其被配置为固定在所述放射线检测单元处产生的不确定电位，同时由所述存储控制单元进行的所述充电信号的存储控制和所述读取控制单元的所述充电信号的读取控制中的至少一个不被执行 。
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