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公开(公告)号：US20200322556A1
公开(公告)日：2020-10-08
申请号：US16906446
申请日：2020-06-19
Inventor： TAKEYOSHI TOKUHARA , YASUO MIYAKE , SANSHIRO SHISHIDO
Abstract: An imaging device includes a pixel including a permittivity modulation element that includes opposite and pixel electrodes and a permittivity modulation structure whose permittivity changes according to the radiation of light, a capacitive element that includes first and second electrodes, and a detection circuit that outputs a signal corresponding to the potential of the pixel electrode. Also provided are a voltage supply circuit that applies first and second voltages in different first and second periods to one of the opposite electrode and the first electrode, and a signal processing circuit that generates a third signal being a difference between a first signal output from the detection circuit in the first period and a second signal output from the detection circuit in the second period. The potential difference between the opposite electrode and the first electrode when the second voltage is applied is less than when the first voltage is applied.
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公开(公告)号：US20190113332A1
公开(公告)日：2019-04-18
申请号：US16217076
申请日：2018-12-12
Inventor： KAZUKO NISHIMURA , YASUO MIYAKE , YOSHIAKI SATOU , OSAMU SHIBATA , HIROSHI IWAI
Abstract: A driving control system includes: an imaging device that is installed on a moving body and that images a target object in a first frame period a plurality of times to generate a multiple-exposure image data including a first image data and a second image data; and a processor that detects a relative motion state of the moving body with respect to the target object, based on the first image data and the second image data. The imaging device images the target object with a first sensitivity in a first exposure period in the first frame period to generate the first image data and images the target object with a second sensitivity in a second exposure period in the first frame period to generate the second image data, the second exposure period being different from the first exposure period, the second sensitivity being different from the first sensitivity.
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公开(公告)号：US20170214870A1
公开(公告)日：2017-07-27
申请号：US15404876
申请日：2017-01-12
Inventor： YASUO MIYAKE
IPC: H04N5/355
CPC classification number: H04N5/35554 , H01L27/14665 , H01L27/307 , H04N5/35509 , H04N5/35581 , H04N5/3559 , H04N5/3745 , H04N5/378
Abstract: An imaging device includes: a first unit pixel cell including first and second electrodes, a first photoelectric conversion layer therebetween, and a first signal detection circuit connected to the first electrode; and a voltage supply circuit supplying a voltage to the second electrode. The voltage supply circuit forms exposure periods and one or more non-exposure periods that separate the exposure periods from each other by changing the voltage. The exposure and non-exposure periods are included in each of a first frame period and a second frame period subsequent to the first frame period. Timing of a start and an end of each of the exposure periods in the first frame period is the same as that of each of the exposure periods in the second frame period. Magnitude of change of the voltage in the first frame period is different from that of the voltage in the second frame period.
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公开(公告)号：US20250031512A1
公开(公告)日：2025-01-23
申请号：US18906209
申请日：2024-10-04
Inventor： MORIO MITSUISHI , YASUO MIYAKE
IPC: H10K39/32
Abstract: A photoelectric conversion element includes: a photoelectric conversion layer converting light into signal charge, a first electrode collecting the signal charge, a second electrode, and a first charge blocking layer. The first charge blocking layer blocks charge of polarity opposite to the signal charge. A photocurrent characteristic of the element, with respect to a voltage applied between the first and second electrodes when the photoelectric conversion layer is irradiated with light, exhibits first and second voltage ranges. A photocurrent density at a first voltage in the first voltage range is less than that at a second voltage in the second voltage range. The first voltage is less than the second voltage. A change ratio of photocurrent density at the first voltage is less than that at the second voltage. An absolute value of a difference between the maximum and minimum voltages of the first voltage range is ≥0.5 V.
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公开(公告)号：US20250030963A1
公开(公告)日：2025-01-23
申请号：US18905137
申请日：2024-10-02
Inventor： YASUO MIYAKE , MORIO MITSUISHI
IPC: H04N25/772 , H04N25/57
Abstract: An imaging device includes a pixel that includes a photoelectric converter converting light into a signal charge and a charge accumulator accumulating the signal charge and outputs a pixel signal according to an amount of the signal charge accumulated in the charge accumulator, an AD conversion circuit performing AD conversion of the pixel signal output from the pixel, and a control circuit setting the number of gradations of digital output of the AD conversion. The photoelectric converter has photoelectric conversion characteristics such that photoelectric conversion efficiency changes according to a potential difference between a counter electrode and a pixel electrode. Linearity of a magnitude of the pixel signal with respect to an amount of light incident on the photoelectric converter changes depending on a voltage VITO supplied from a voltage supply circuit to the pixel. The control circuit changes the number of gradations in accordance with the voltage VITO.
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Patent Agency Ranking
公开(公告)号：US20240214700A1
公开(公告)日：2024-06-27
申请号：US18599298
申请日：2024-03-08
Inventor： YOSHIAKI SATOU , YASUO MIYAKE , YUSUKE OKADA , KAZUKO NISHIMURA
IPC: H04N25/47 , H04N25/772
CPC classification number: H04N25/47 , H04N25/772
Abstract: An imaging device is provided with a pixel array section including multiple pixels arranged in a matrix of rows and columns, and a column signal processor. The multiple pixels include multiple imaging pixels that each output a pixel signal corresponding to incident light and multiple reference pixels which are aligned in the column direction in at least two columns and which each output a reset signal corresponding to the output signal at reset of each of the multiple first pixels. The column signal processor outputs the difference between the pixel signal outputted by one imaging pixel from among the multiple imaging pixels and a reference signal based on the reset signals outputted by at least two reference pixels, from among the multiple reference pixels, located in the same row as the one imaging pixel.
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公开(公告)号：US20230085674A1
公开(公告)日：2023-03-23
申请号：US18058908
申请日：2022-11-28
Inventor： TAKAYUKI NISHITANI , SOGO OTA , YASUO MIYAKE , YOSHIHIRO SATO , KAZUKO NISHIMURA , TSUTOMU KOBAYASHI
IPC: H01L27/148 , H01L27/146
Abstract: An image sensor includes a semiconductor substrate, a first photoelectric converter, and a second photoelectric converter. The semiconductor substrate has an electric-charge storage region. The second photoelectric converter is located between the first photoelectric converter and the semiconductor substrate. The first photoelectric converter includes a first counter electrode, a first pixel electrode, and a first photoelectric conversion layer. The first photoelectric conversion layer is located between the first counter electrode and the first pixel electrode. The second photoelectric converter includes a second counter electrode, a second pixel electrode, and a second photoelectric conversion layer. The second photoelectric conversion layer is located between the second counter electrode and the second pixel electrode. The electric-charge storage region is electrically connected to the first pixel electrode and the second pixel electrode.
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公开(公告)号：US20210084248A1
公开(公告)日：2021-03-18
申请号：US17098505
申请日：2020-11-16
Inventor： YUSUKE OKADA , TAKEYOSHI TOKUHARA , YOSHIAKI SATOU , YASUO MIYAKE
IPC: H04N5/378 , H04N5/369 , H04N5/355 , H01L27/146 , H01L27/148
Abstract: An imaging device 100 includes a pixel array PA. A first period, a third period, and a second period appear in this order in one frame. During the first period, pixel signal readout is performed on at least one first row in the pixel array PA. During the second period, pixel signal readout is performed on at least one second row in the pixel array PA. At least one of the at least one first row or the at least one second row includes two rows in the pixel array PA. During the third period, no pixel signal readout is performed on the rows in the pixel array PA. Each of the first period and the second period is one of the high-sensitivity exposure period and the low-sensitivity exposure period. The third period is the other of the high-sensitivity exposure period and the low-sensitivity exposure period.
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9.发明申请公开(公告)号：US20180343373A1
公开(公告)日：2018-11-29
申请号：US15985951
申请日：2018-05-22
Inventor： YOSHIAKI SATOU , KAZUKO NISHIMURA , YASUO MIYAKE , OSAMU SHIBATA , HIROSHI IWAI
Abstract: An imaging device includes: an imager that includes first pixels having sensitivity to visible light and second pixels having sensitivity to non-visible light, the imager acquiring first image data from the first pixels and acquiring second image data from the second pixels, each of the first image data and the second image data containing an image of an object that displays a code through non-visible light; and an image processor. The image processor performs a correction process including a process of multiplying at least either the first image data or the second image data by a correction factor, generates third image data from a difference between a pair of image data obtained by the correction process, and extracts the code on the basis of the third image data.
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公开(公告)号：US20170332025A1
公开(公告)日：2017-11-16
申请号：US15497157
申请日：2017-04-25
Inventor： KATSUYA NOZAWA , YASUO MIYAKE
IPC: H04N5/374 , H04N5/378 , H01L27/144 , H04N5/225 , H01L27/146 , H04N5/369 , H04N5/351
Abstract: An imaging system includes a first illuminator that irradiates a subject with light whose intensity varies over time; and a first imaging device that includes a first imaging cell having a variable sensitivity, and a first sensitivity control line electrically connected to the first imaging cell. The first imaging cell includes a photoelectron conversion area that receives light from the subject to generate a signal charge, and a signal detection circuit that detects the signal charge. During an exposure period, the first sensitivity control line supplies to the first imaging cell a first sensitivity control signal having a waveform expressed by a first function that takes only positive values by adding a first constant to one basis from among bases of a system of functions constituting an orthogonal system
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