| Patent application number | Description | Published |
|---|
| 20140112448 | IMAGING APPARATUS, CONTROL METHOD THEREFOR, AND IMAGING SYSTEM - An imaging apparatus comprises: a detecting unit | 04-24-2014 |
| 20140185764 | IMAGING APPARATUS AND IMAGING SYSTEM - 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. | 07-03-2014 |
| 20140239186 | RADIATION IMAGING APPARATUS, RADIATION INSPECTION APPARATUS, METHOD FOR CORRECTING SIGNAL, AND COMPUTER-READABLE STORAGE MEDIUM - A radiation imaging apparatus, comprising a pixel array on which a plurality of pixels are arrayed, a readout unit configured to read out a signal from the pixel array, a first unit configured to specify a portion of the signal read out by the readout unit, at which a saturated signal whose value has reached a saturation level of an output by the readout unit and a non-saturated signal whose value has not reached the saturation level are mixed, and a second unit configured to correct, based on the non-saturated signal, the saturated signal at the portion specified by the first unit. | 08-28-2014 |
| 20140239187 | RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation imaging apparatus includes a pixel array in which a plurality of pixels which detects radiation are arrayed to form a plurality of rows and a plurality of columns, a detection circuit which detects information having correlation to a radiation dose to the pixel array and output a detection signal corresponding to the information, and a control unit which detects radiation irradiation to the pixel array based on a plurality of integrated values obtained by integrating one of the detection signal and a result of processing applied to the detection signal in a plurality of integral intervals and control the pixel array in accordance with the detection. | 08-28-2014 |
| 20140241501 | RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation imaging apparatus includes a pixel array having pixels, a bias line applying a bias potential to converters of the pixels, a detection circuit which detects a current flowing to the bias line, and a control unit which detects a start of radiation irradiation to the pixel array based on an output from the detection circuit and controls a charge accumulation operation of the pixels in accordance with the detection. The detection circuit includes a differential amplifier circuit and a feedback path, and applies a potential corresponding to a reference bias potential to the bias line. The differential amplifier circuit includes a first input terminal receiving the reference bias potential, a second input terminal connected to the bias line, and an output terminal, and the feedback path connects the output terminal and the second input terminal. | 08-28-2014 |
| 20140241506 | RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation imaging apparatus includes a pixel array having pixels including conversion elements and switching elements, a bias line for supplying a bias potential to the conversion elements; driving lines for supplying a signal to control the switching elements, a driving unit for performing an initialization operation of supplying a driving signal to each driving line group, switching each driving signal from an OFF voltage to an ON voltage, and then returning the driving signal to the OFF voltage; an acquisition unit configured to acquire a plurality of times in each driving cycle a signal value representing a current flowing through the bias line; a calculation unit configured to calculate radiation information based on the signal values; and a determination unit configured to determine whether irradiation of the pixel array with radiation is present based on the radiation information. | 08-28-2014 |
| 20140264060 | RADIATION IMAGE PICKUP APPARATUS, RADIATION IMAGE PICKUP SYSTEM, METHOD FOR CONTROLLING RADIATION IMAGE PICKUP APPARATUS, AND PROGRAM - A radiation image pickup apparatus includes a pixel array including a plurality of pixels arranged in a matrix and configured to convert a radiant ray into electric signals, signal processors configured to output digital signals obtained in accordance with the electric signals output from the pixel array in parallel, and a controller configured to operate the signal processors after the signal processors enter a second power consumption state in which power consumption is higher than that of a first power consumption state from the first power consumption state after irradiation of a radiant ray to the pixel array is terminated, and to cause the signal processors to output digital signals after the signal processors are operated. | 09-18-2014 |
| 20140284491 | RADIATION IMAGE PICKUP SYSTEM - A radiation image pickup system includes a correction coefficient calculation unit that calculates a correction coefficient using pixel output values of a plurality of pixels, and a correction unit that corrects pixel output values of a plurality of pixels using the correction coefficient. A drive control unit repeatedly resets an electric charge caused by a dark current of a plurality of pixels until a detection unit detects a start of radiation exposure. The reset operation is performed simultaneously for n rows that are not adjacent to each other, where n is an integer equal to or greater than 2. The correction coefficient calculation unit calculates the correction coefficient using pixel output values of pixels in a row subjected to the reset operation in a period from a start of radiation exposure to a start detection time and pixel output values of pixels in an adjacent row. | 09-25-2014 |
| 20140285689 | IMAGING SYSTEM - An imaging system comprises: a plurality of pixels each for converting light, converted from radiation by a conversion unit, into an electrical signal; an extracting unit that extracts, based on an image formed based on output signals from the pixels, a pixel with noise generated by the radiation that has transmitted through the conversion unit to arrive at the pixels; and a correcting unit that performs correction to remove the noise with respect to an output signal from the extracted pixel, wherein the extracting unit extracts the pixel with the noise by performing division between first and second images, the first image being formed based on the output signals from the pixels in accordance with the radiation to the conversion unit during a first period, the second image being formed based on these output signals in accordance with that radiation during a second period after the first period. | 09-25-2014 |
| 20140320685 | IMAGING APPARATUS AND IMAGING SYSTEM - An imaging apparatus, comprising a sensor array in which a plurality of sensors are arrayed, a first readout unit configured to read out, from each of the plurality of sensors, a first signal corresponding to an amount of one of an electron and a hole of each of electron-hole pairs generated in the sensor array in response to irradiation with radiation or light, and a second readout unit configured to read out, from each of the plurality of sensors, a second signal corresponding to an amount of the other of the electron and the hole of the electron-hole pairs. | 10-30-2014 |
| 20140361184 | RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation imaging apparatus comprises a conversion element and a transistor. A drive unit performs a reset operation at a plurality of times, by supplying a conducting voltage to gates of the transistors, successively, one row by one row, an operation of stopping the supplying of the conducting voltage responsive to detecting the irradiation of the radiation to perform an accumulation operation and, after the reset operation, a read out operation. During the reset operation, a period between the supplying the conducting voltage to the gates of the transistors in one row and the supplying the conducting voltage subsequently to the gates of the transistors in another row is different from a period between the supplying the conducting voltage to the gates of the transistors in the another row and the supplying the conducting voltage subsequently to the gates of the transistors in further another row. | 12-11-2014 |
| 20140361189 | RADIATION IMAGING SYSTEM - A radiation imaging system includes: a sensor unit including a plurality of pixels arranged in a matrix, and configured to convert a radiation into an electric charge and to output a pixel output value; a detecting unit configured to detect an irradiation start of the radiation; and a control unit configured to output image information based on the irradiation of the radiation and to output dark image information for the plurality of pixels. | 12-11-2014 |
