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公开(公告)号：US20240397209A1
公开(公告)日：2024-11-28
申请号：US18774868
申请日：2024-07-16
Inventor： Tsutomu KOBAYASHI , Kazuko NISHIMURA , Yasuo MIYAKE , Sanshiro SHISHIDO
Abstract: A camera system includes: a photoelectric converter including a first electrode, a second electrode, and a photoelectric conversion layer between the first electrode and the second electrode, the photoelectric conversion layer converting incident light into electric charge; voltage application circuitry that supplies a first voltage and a second voltage less than the first voltage between the first electrode and the second electrode in a frame; and a controller that derives a voltage value corresponding to an attenuation ratio set for the frame and that causes the voltage supply circuitry to supply the first voltage having the voltage value and the second voltage between the first electrode and the second electrode in the frame.
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公开(公告)号：US20240040277A1
公开(公告)日：2024-02-01
申请号：US18486802
申请日：2023-10-13
Inventor： Yasuo MIYAKE
IPC: H04N25/65 , H04N25/75 , H04N25/71 , H04N25/772
CPC classification number: H04N25/65 , H04N25/75 , H04N25/745 , H04N25/772
Abstract: An imaging device includes multiple pixels, a first analog-to-digital (AD) converter and a second AD converter that receive analog signals read from the pixels and output digital signals the analog signals, a first frame memory, and an image processor. The analog signals include a reset signal representing a reset level and a pixel signal representing an image of a subject. The first frame memory temporarily stores a first digital signal that is one of the digital signals, corresponding to the reset signal, output from the first AD converter and the second AD converter. The image processor outputs a difference between the first digital signal stored on the first frame memory and a second digital signal that is another one of the digital signals, corresponding to the pixel signal on pixels from which the reset signal is read, output from the first AD converter and the second AD converter.
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公开(公告)号：US20230247315A1
公开(公告)日：2023-08-03
申请号：US18190002
申请日：2023-03-24
Inventor： Yasuo MIYAKE , Masashi MURAKAMI , Tokuhiko TAMAKI , Yoshiaki SATOU
IPC: H04N25/53 , H10K39/32 , H01L27/146
CPC classification number: H04N25/53 , H10K39/32 , H01L27/14609 , H01L27/14612
Abstract: An imaging device including pixels each including a photoelectric converter that converts light into a signal charge; and controller, where the controller causes the pixels to perform global shutter operation in a first frame period and causes the pixels to perform rolling shatter operation in a second frame period different from the first frame period.
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公开(公告)号：US20230133421A1
公开(公告)日：2023-05-04
申请号：US18066675
申请日：2022-12-15
Inventor： Takeyoshi TOKUHARA , Sanshiro SHISHIDO , Yasuo MIYAKE , Shinichi MACHIDA
IPC: H10K39/32 , H01L27/146
Abstract: An imaging device including a semiconductor substrate including a first surface that receives light from outside, and a second surface opposite to the first surface; a first transistor located on the second surface; and a photoelectric converter that faces the second surface and that receives light transmitted through the semiconductor substrate. The semiconductor substrate is a silicon substrate or a silicon compound substrate, and the photoelectric converter includes a first electrode electrically connected to the first transistor, a second electrode, and a photoelectric conversion layer that is located between the first electrode and the second electrode and that contains a material which absorbs light having a first wavelength longer than or equal to 1.1 μm, and the material has a quantum nanostructure.
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公开(公告)号：US20220224847A1
公开(公告)日：2022-07-14
申请号：US17708871
申请日：2022-03-30
Inventor： Masashi MURAKAMI , Kazuko NISHIMURA , Yasuo MIYAKE , Yasunori INOUE
IPC: H04N5/355
Abstract: An imaging device including a pixel that includes: a photoelectric converter that converts light into a charge; a charge accumulation region to which the charge is input; and an amplifier transistor that includes a gate electrically connected to the charge accumulation region. The amplifier transistor being configured to output a signal that corresponds to a potential of the charge accumulation region. The imaging device further including a detection circuit that is configured to detect a level of the signal from the amplifier transistor, wherein a sensitivity of the pixel is caused to be increased, in a case where the level detected by the detection circuit is greater than a first threshold value.
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Patent Agency Ranking
公开(公告)号：US20220174223A1
公开(公告)日：2022-06-02
申请号：US17672287
申请日：2022-02-15
Inventor： Tsutomu KOBAYASHI , Kazuko NISHIMURA , Yasuo MIYAKE , Sanshiro SHISHIDO
Abstract: A camera system includes: a photoelectric converter including a first electrode, a second electrode, and a photoelectric conversion layer between the first electrode and the second electrode, the photoelectric conversion layer converting incident light into electric charge; voltage application circuitry; and a controller that derives a duty cycle corresponding to an attenuation ratio set for a first frame and that causes the voltage application circuitry to apply a pulse voltage having the duty cycle between the first electrode and the second electrode in the first frame.
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公开(公告)号：US20210385366A1
公开(公告)日：2021-12-09
申请号：US17405501
申请日：2021-08-18
Inventor： Yoshiaki SATOU , Sanshiro SHISHIDO , Yasuo MIYAKE , Kazuko NISHIMURA , Hiroshi IWAI , Osamu SHIBATA
Abstract: A camera system including an imaging device that captures a first image by a normal exposure including only one exposure and that captures a second image by a multiple exposure including a plurality of exposures; and a control circuit. The the imaging device captures the second image in a first frame period, and the control circuit determines, based on the second image captured in the first frame period, whether to capture an image by the normal exposure or capture an image by the multiple exposure in a second frame period following the first frame period.
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公开(公告)号：US20210167101A1
公开(公告)日：2021-06-03
申请号：US17173885
申请日：2021-02-11
Inventor： Masashi MURAKAMI , Kazuko NISHIMURA , Yasuo MIYAKE , Yasunori INOUE
IPC: H01L27/146 , H01L27/142 , H01L31/14
Abstract: An imaging device includes: a photoelectric converter including first and second electrodes, and a photoelectric conversion layer located between the first electrode and the second electrode; a voltage supply circuit applying a bias voltage between the first electrode and the second electrode; an amplifier transistor including a gate electrically connected to the second electrode, the amplifier transistor configured to output a signal corresponding to a potential of the second electrode; and a detection circuit configured to detect a level of the signal from the amplifier transistor. The voltage supply circuit applies the bias voltage in a first voltage range when the level detected by the detection circuit is greater than or equal to a first threshold value, and applies the bias voltage in a second voltage range that is greater than the first voltage range when the level detected by the detection circuit is less than a second threshold value.
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公开(公告)号：US20200321365A1
公开(公告)日：2020-10-08
申请号：US16907742
申请日：2020-06-22
Inventor： Masashi MURAKAMI , Kazuko NISHIMURA , Yasuo MIYAKE , Yasunori INOUE
IPC: H01L27/146 , H04N5/3745 , H01L27/142 , H01L31/14 , H04N5/374 , H04N5/355
Abstract: An imaging device includes: a photoelectric converter including first and second electrodes, and a photoelectric conversion layer located between the first electrode and the second electrode; a voltage supply circuit applying a bias voltage between the first electrode and the second electrode: an amplifier transistor including a gate electrically connected to the second electrode, the amplifier transistor configured to output a signal corresponding to a potential of the second electrode; and a detection circuit configured to detect a level of the signal from the amplifier transistor. The voltage supply circuit applies the bias voltage in a first voltage range when the level detected by the detection circuit is greater than or equal to a first threshold value, and applies the bias voltage in a second voltage range that is greater than the first voltage range when the level detected by the detection circuit is less than a second threshold value.
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公开(公告)号：US20190313038A1
公开(公告)日：2019-10-10
申请号：US16444841
申请日：2019-06-18
Inventor： Yasuo MIYAKE , Masashi MURAKAMI , Tokuhiko TAMAKI , Yoshiaki SATOU
Abstract: An electronic device including: a photosensitive layer that converts incident light into a signal charge; a first electrode that collects the signal charge; and a first carrier blocking layer between the photosensitive layer and the first electrode. The carrier blocking layer is configured to block a carrier a polarity of which is different from that of the signal charge. Under a first range of biases on the electronic device, the photosensitive layer is configured to generate photocurrent while illuminated. Under a second range of biases on the electronic device, the photosensitive layer is configured to generate lower photocurrent while illuminated compared to under the first range of biases.
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