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公开(公告)号：US11935905B2
公开(公告)日：2024-03-19
申请号：US17063187
申请日：2020-10-05
IPC分类号： H01L27/146 , H04N25/704
CPC分类号： H01L27/1461 , H01L27/14603 , H01L27/14643 , H04N25/704
摘要： An imaging device comprises pixels. The pixel includes first semiconductor regions of a first conductivity type provided in a surface part of a semiconductor substrate and a second semiconductor region of a second conductivity type provided in the surface part of the semiconductor substrate between the first semiconductor regions. The pixel includes: a light-receiving unit in which photodiodes each configured between the second semiconductor region and one of the first semiconductor regions; quenching circuits, each connected to a corresponding one of the first semiconductor regions; and a counter unit connected to each of connection nodes between the first semiconductor regions and the quenching circuits and counts a pulse generated in response to a photon being incident on the light-receiving unit. The second semiconductor region is provided across a deeper part of the semiconductor substrate than the first semiconductor regions.
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公开(公告)号：US11044434B2
公开(公告)日：2021-06-22
申请号：US16744317
申请日：2020-01-16
发明人： Hirokazu Kobayashi
IPC分类号： H04N5/378 , H04N5/351 , H04N5/369 , H04N5/3745
摘要： An image sensor having a plurality of pixels each of which comprises: a photoelectric converter that repeatedly generates charge corresponding to an amount of incident light; an A/D converter that A/D converts a voltage corresponding to the charge generated by the photoelectric converter into a digital signal by comparing the voltage with a reference voltage that changes with lapse of time; a capacitor that holds a threshold voltage based on the voltage corresponding to the charge; and a switching circuit that switches whether to perform A/D conversion on a voltage that corresponds to newly generated charge by the photoelectric converter based on a comparison result between the voltage that corresponds to the newly generated charge and the threshold voltage held in the capacitor.
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公开(公告)号：US10834349B2
公开(公告)日：2020-11-10
申请号：US16027651
申请日：2018-07-05
摘要： A solid-state image sensor comprises: a plurality of pixels each provided with a sensor unit that generates a pulse signal at a frequency corresponding to a frequency of reception of photons; a first counter that counts a number of pulses generated by the sensor unit; and an output unit that outputs a signal corresponding to a count value counted by the first counter in a case where change in the number of pulses detected per unit time is greater than a threshold.
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公开(公告)号：US20190289213A1
公开(公告)日：2019-09-19
申请号：US16354933
申请日：2019-03-15
发明人： Satoshi Kumaki , Hirokazu Kobayashi
IPC分类号： H04N5/232
摘要： An image sensor that obtains an image in which shake is corrected, while at the same time suppresses an increase in the circuit size, is disclosed. The image sensor has a plurality of pixels. Each of the plurality of pixels includes a light-sensitive element that detects the incidence of single photons; and a counter that counts a pulse contained in a signal. The image sensor further comprises a control unit that, on the basis of detected shake, switches a signal of the light-sensitive element supplied to the counter in a pixel, or replaces a count value of the counter of the pixel with a count value of the counter in another pixel.
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公开(公告)号：US10063762B2
公开(公告)日：2018-08-28
申请号：US15202790
申请日：2016-07-06
发明人： Hirokazu Kobayashi , Takafumi Kishi
IPC分类号： H04N5/335 , H04N5/232 , H01L27/146 , H04N5/374 , H04N5/3745 , H04N5/378 , H04N9/04 , G02B5/20
CPC分类号： H04N5/23212 , G02B5/201 , H01L27/14621 , H01L27/14641 , H01L27/14645 , H04N5/374 , H04N5/3745 , H04N5/378 , H04N9/045
摘要： An image sensor comprising: a plurality of unit pixels, arranged in matrix, each having a plurality of photoelectric conversion portions for accumulating charge corresponding to a quantity of incident light; color filters, arranged for the plurality of unit pixels, respectively, that mainly pass light of wavelengths corresponding to different colors; first control signal lines arranged between every predetermined number of rows and connected to the unit pixels, included in the predetermined number of rows, corresponding to the color filters of a first color; and second control signal lines arranged between the every predetermined number of rows and connected to the unit pixels, included in the same predetermined number of rows that include the unit pixels corresponding to the color filters of the first color, corresponding to the color filters of a second color.
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公开(公告)号：US20170126967A1
公开(公告)日：2017-05-04
申请号：US15404773
申请日：2017-01-12
发明人： Satoshi Suzuki , Hirokazu Kobayashi
IPC分类号： H04N5/232
摘要： An image processing apparatus for processing a picked-up image which is output from an image pickup element in which a microlens array for obtaining the picked-up image including ray directional information of an object image formed by a photographing optical system has been arranged has: a refocus processing unit for executing a refocus processing of the obtained picked-up image on the basis of the ray directional information and generating a reconstruction image; and a defect pixel detection unit for detecting a defect pixel from the obtained picked-up image. When the picked-up image is obtained, the detection of the defect pixel of the obtained picked-up image is performed. When a refocus processing is instructed, the refocus processing is executed to the picked-up image in which the detection of the defect pixel is performed.
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公开(公告)号：US11190717B2
公开(公告)日：2021-11-30
申请号：US16930972
申请日：2020-07-16
IPC分类号： H04N5/355 , H04N5/3745
摘要： The present invention provides a solid state image sensor, an image capturing apparatus, and an image capturing method that can realize a wide dynamic range while suppressing an increase in a signal amount. A solid state image sensor includes a sensor that issues pulses at a frequency corresponding to a frequency at which photons are incident; and a counter circuit that thins out the pulses issued from the sensor at a thinning ratio corresponding to the number of pulses issued from the sensor, and counts the pulses.
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公开(公告)号：US20200169684A1
公开(公告)日：2020-05-28
申请号：US16691229
申请日：2019-11-21
发明人： Hideki Ikedo , Hirokazu Kobayashi
IPC分类号： H04N5/3745 , H04N5/378 , H04N5/376
摘要： An image sensor comprises: a plurality of pixels, each pixel including a light-receiving portion that outputs an electrical signal obtained by photoelectrically converting incident light and an A/D converter that AD-converts the electrical signal, the plurality of pixels configured to be capable of AD-converting a signal output from the light-receiving portion of a first pixel, among a predetermined plurality of pixels, using the A/D converter of another pixel, every predetermined plurality of pixels; and a selection circuit that selects a pixel to AD-convert the electrical signal output from the light-receiving portion of the first pixel, every predetermined plurality of pixels. The A/D converters of the predetermined plurality of pixels carry out the AD conversion in parallel.
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公开(公告)号：US10511791B2
公开(公告)日：2019-12-17
申请号：US15608470
申请日：2017-05-30
IPC分类号： H04N5/357 , H04N5/374 , H04N5/365 , H04N5/243 , H04N5/232 , H04N9/04 , H04N5/369 , H04N5/378
摘要： In an image capturing apparatus that comprises a pixel area of pixels arranged in a matrix, output circuits apply preset processing to signals read out in parallel from divided areas obtained by dividing the pixel area in a column direction and output the processed signals, a controller performs control to execute first driving for reading out signals corresponding to a predetermined voltage to the output circuits, and second driving for reading out image signals from the pixel area, and a correction circuit generates gain data based on the predetermined voltage for correcting differences between the signals for correction of different columns output for each of the divided areas, and corrects the image signals of the divided areas using the gain data generated for the corresponding divided areas.
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公开(公告)号：US20190238781A1
公开(公告)日：2019-08-01
申请号：US16376046
申请日：2019-04-05
IPC分类号： H04N5/3745 , H04N5/378 , H04N5/225
CPC分类号： H04N5/37457 , H04N5/225 , H04N5/378
摘要： In a pixel section of an image sensor, pixels are arranged two-dimensionally, each of the pixels including an amplifier transistor that is connected to a power voltage and has a gate into which a voltage of a signal charge generated by a photoelectric conversion area is input and a selection transistor that is connected to the amplifier transistor and a signal line. The image sensor includes an AD conversion circuit having a reference transistor having a gate into which a ramp signal is input and a constant current source that is connected to the reference transistor and the signal line. The voltage of the ramp signal or a driving ability of the reference transistor changes depending on whether one selection transistor or a plurality of selection transistors is/are turned on per signal line to obtain a signal charge to be AD-converted.
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