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公开(公告)号：US20230239592A1
公开(公告)日：2023-07-27
申请号：US18190023
申请日：2023-03-24
发明人： Jiaju Ma , Saleh Masoodian
摘要： First and second readout circuits, each having a respective floating diffusion node, are coupled to a photodetection element within a pixel of an integrated-circuit image sensor. Following an exposure interval in which photocharge is accumulated within the photodetection element, a first portion of the accumulated photocharge is transferred from the photodetection element to the first floating diffusion node to enable generation of a first output signal within the first readout circuit, and a second portion of the accumulated photocharge is transferred from the photodetection element to the second floating diffusion node to enable generation of a second output signal within the second readout circuit. A digital pixel value is generated based on the first and second output signals.
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公开(公告)号：US20220303487A1
公开(公告)日：2022-09-22
申请号：US17716176
申请日：2022-04-08
发明人： Jiaju Ma , Saleh Masoodian
摘要： First and second readout circuits, each having a respective floating diffusion node, are coupled to a photodetection element within a pixel of an integrated-circuit image sensor. Following an exposure interval in which photocharge is accumulated within the photodetection element, a first portion of the accumulated photocharge is transferred from the photodetection element to the first floating diffusion node to enable generation of a first output signal within the first readout circuit, and a second portion of the accumulated photocharge is transferred from the photodetection element to the second floating diffusion node to enable generation of a second output signal within the second readout circuit. A digital pixel value is generated based on the first and second output signals.
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公开(公告)号：US20200020735A1
公开(公告)日：2020-01-16
申请号：US16513653
申请日：2019-07-16
发明人： Saleh Masoodian , Jiaju Ma
IPC分类号： H01L27/146
摘要： A sensing device includes a light source to emit light, a light sensor to detect reflection of the emitted light and distance determination circuitry responsive to reflected-light detection within the light sensor. The light sensor includes a photodetector having a photocharge storage capacity in excess of one electron and an output circuit that generates an output signal responsive to light detection within the photodetector with sub-hundred nanosecond latency. The distance determination circuitry measures an elapsed time based on transition of the output signal in response to photonic detection within the photodetector and determines, based on the elapsed time, a distance between the sensing device and a surface that yielded the reflection of the emitted light.
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公开(公告)号：US12015862B2
公开(公告)日：2024-06-18
申请号：US17058506
申请日：2019-05-24
发明人： Jiaju Ma , Saleh Masoodian
IPC分类号： H04N25/75 , H01L27/146 , H04N25/59 , H04N25/616 , H04N25/65 , H04N25/778
CPC分类号： H04N25/75 , H01L27/14612 , H04N25/59 , H04N25/616 , H04N25/65 , H04N25/778
摘要： According to some embodiments, an image sensor pixel includes a floating diffusion, a transistor gate configured to transfer charge with respect to the floating diffusion, and a doped pinning region disposed between the floating diffusion and the transistor gate, to reduce or eliminate the effective capacitive coupling between the floating diffusion and the transistor gate. The transistor gate may be an in-pixel transfer gate configured to selectively transfer photocharge from an in-pixel charge accumulation region to the floating diffusion. Alternatively, or additionally, the transistor gate may be an in-pixel reset gate configured to selectively reset the electrostatic potential of the floating diffusion.
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公开(公告)号：US11729528B2
公开(公告)日：2023-08-15
申请号：US17716320
申请日：2022-04-08
发明人： Jiaju Ma , Saleh Masoodian
摘要： Shared-readout pixels conventionally disposed in two or more physical columns of a pixel array are spatially interleaved (merged) within a single physical column to yield a pixel array in which each physical pixel column includes two or more logical columns of shared-readout pixels coupled to respective logical-column output lines.
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公开(公告)号：US20230207602A1
公开(公告)日：2023-06-29
申请号：US18052886
申请日：2022-11-04
发明人： Saleh Masoodian , Jiaju Ma
IPC分类号： H01L27/146
CPC分类号： H01L27/14643 , H01L27/14614 , H01L27/14616 , H01L27/1464
摘要： A sensing device includes a light source to emit light, a light sensor to detect reflection of the emitted light and distance determination circuitry responsive to reflected-light detection within the light sensor. The light sensor includes a photodetector having a photocharge storage capacity in excess of one electron and an output circuit that generates an output signal responsive to light detection within the photodetector with sub-hundred nanosecond latency. The distance determination circuitry measures an elapsed time based on transition of the output signal in response to photonic detection within the photodetector and determines, based on the elapsed time, a distance between the sensing device and a surface that yielded the reflection of the emitted light.
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公开(公告)号：US11330220B2
公开(公告)日：2022-05-10
申请号：US17006187
申请日：2020-08-28
发明人： Jiaju Ma , Saleh Masoodian
摘要： Shared-readout pixels conventionally disposed in two or more physical columns of a pixel array are spatially interleaved (merged) within a single physical column to yield a pixel array in which each physical pixel column includes two or more logical columns of shared-readout pixels coupled to respective logical-column output lines.
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公开(公告)号：US20210152767A1
公开(公告)日：2021-05-20
申请号：US17006187
申请日：2020-08-28
发明人： Jiaju Ma , Saleh Masoodian
摘要： Shared-readout pixels conventionally disposed in two or more physical columns of a pixel array are spatially interleaved (merged) within a single physical column to yield a pixel array in which each physical pixel column includes two or more logical columns of shared-readout pixels coupled to respective logical-column output lines.
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公开(公告)号：US20200275043A1
公开(公告)日：2020-08-27
申请号：US16871720
申请日：2020-05-11
发明人： Jiaju Ma , Saleh Masoodian
摘要： First and second readout circuits, each having a respective floating diffusion node, are coupled to a photodetection element within a pixel of an integrated-circuit image sensor. Following an exposure interval in which photocharge is accumulated within the photodetection element, a first portion of the accumulated photocharge is transferred from the photodetection element to the first floating diffusion node to enable generation of a first output signal within the first readout circuit, and a second portion of the accumulated photocharge is transferred from the photodetection element to the second floating diffusion node to enable generation of a second output signal within the second readout circuit. A digital pixel value is generated based on the first and second output signals.
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公开(公告)号：US20240267653A1
公开(公告)日：2024-08-08
申请号：US18638493
申请日：2024-04-17
发明人： Jiaju Ma , Saleh Masoodian
摘要： First and second readout circuits, each having a respective floating diffusion node, are coupled to a photodetection element within a pixel of an integrated-circuit image sensor. Following an exposure interval in which photocharge is accumulated within the photodetection element, a first portion of the accumulated photocharge is transferred from the photodetection element to the first floating diffusion node to enable generation of a first output signal within the first readout circuit, and a second portion of the accumulated photocharge is transferred from the photodetection element to the second floating diffusion node to enable generation of a second output signal within the second readout circuit. A digital pixel value is generated based on the first and second output signals.
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