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公开(公告)号：US10701295B2
公开(公告)日：2020-06-30
申请号：US16144989
申请日：2018-09-27
发明人： Makoto Shouho , Masashi Murakami
IPC分类号： H04N5/365 , H01L27/146 , H04N5/3745 , H04N5/369 , H04N5/378
摘要： An imaging device provided with: a pixel including a photoelectric converter that converts light into charges, the pixel outputting a first signal corresponding to an amount of the charges; an output signal line coupled to the pixel, the first signal being transmitted through the output signal line; a load transistor having a source, a drain, and a gate, one of the source and the drain being coupled to the output signal line; and a voltage supply circuit coupled to the gate of the load transistor, the voltage supply circuit selectively supplying either a first voltage or a second voltage to the gate.
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公开(公告)号：US11019289B2
公开(公告)日：2021-05-25
申请号：US16575030
申请日：2019-09-18
发明人： Makoto Shouho , Masaaki Yanagida
摘要： An imaging device includes: a pixel including a photoelectric converter that generates signal charge by photoelectric conversion, and a charge accumulation region that accumulates the signal charge, the pixel being configured to output a signal corresponding to a voltage of the charge accumulation region; a signal line electrically connected to the pixel, the signal being transmitted through the signal line; a first switch that is electrically connected to the signal line and that has input-output characteristics in which an output is linear with respect to an input up to a clipping voltage and the output is clipped at the clipping voltage with respect to the input exceeding the clipping voltage; and a second switch that is electrically connected to the signal line and that has input-output characteristics in which an output is linear with respect to an input.
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公开(公告)号：US10659704B2
公开(公告)日：2020-05-19
申请号：US16408692
申请日：2019-05-10
发明人： Masaaki Yanagida , Makoto Shouho
IPC分类号： H04N5/359 , H04N5/369 , H01L27/146
摘要： There is provided an imaging device including: a pixel that outputs a pixel signal corresponding to an amount of incident light; an output signal line that is connected to the pixel to allow the pixel signal from the pixel to be output to the output signal line; a first transistor that has a first gate, a first source, and a first drain, one of the first source and the first drain being connected to the output signal line; and a first circuit that is connected to the first gate, the first circuit being configured to generate a third voltage that is a voltage between a first voltage and a second voltage, the first voltage being a voltage for turning on the first transistor, the second voltage being a voltage for turning off the first transistor.
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公开(公告)号：US10462396B2
公开(公告)日：2019-10-29
申请号：US15986478
申请日：2018-05-22
发明人： Makoto Shouho , Masaaki Yanagida
摘要： An imaging device includes: a pixel; a signal line electrically connected to the pixel; and a first and second sample-and-hold circuits electrically connected to the signal line. The pixel includes: a photoelectric converter that generates signal charge; a charge accumulation region that accumulates the signal charge; a reset transistor that resets a voltage of the charge accumulation region; and an amplifier transistor that amplifies a signal voltage. The first sample-and-hold circuit includes: a first switch that is electrically connected to the signal line and has input-output characteristics in which an output is clipped at a clipping voltage with respect to an input exceeding the clipping voltage; and a first capacitor electrically connected to the signal line through the first switch. The second sample-and-hold circuit includes: a second switch electrically connected to the signal line; and a second capacitor electrically connected to the signal line through the second switch.
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