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公开(公告)号：US20220191981A1
公开(公告)日：2022-06-16
申请号：US17474834
申请日：2021-09-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： JEONGHO PARK , Raeyoung KIM , Juhwa KIM , Long YAN , Sungjin JUNG
Abstract: An electronic device includes a light source, a light sensor, and a controller that senses an amount of a coarse ambient light by turning off the light source and performing sensing in a coarse mode by using the light sensor and senses an amount of a fine ambient light by performing sensing in a fine mode by using the light sensor. The controller senses an amount of a target light by turning on the light source and performing sensing by using the light sensor while the light source emits a light, and outputs information based on the amount of the coarse ambient light, the amount of the fine ambient light, and the amount of the target light.
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公开(公告)号：US20240348950A1
公开(公告)日：2024-10-17
申请号：US18486372
申请日：2023-10-13
Applicant: Samsung Electronics Co., Ltd.
Inventor： Junseok KIM , Raeyoung KIM , Keun Joo PARK , Bongki SON , Se-Hoon LIM , Hee-Jae JO
Abstract: A dynamic vision sensor (DVS) including a plurality of substrates electrically connected to one another and stacked vertically includes a photoelectric conversion device configured to generate charges in response to incident light from an external environment that is external to the DVS sensor, a bipolar junction transistor (BJT) device including a base connected to the photoelectric conversion device and configured to output a current based on amplifying a current output from the photoelectric conversion device, and a DVS pixel circuit that detects a change in intensity of the incident light and to output an event signal based on the current. The photoelectric conversion device is on a first substrate among the plurality of substrates. At least part of the DVS pixel circuit is on a different substrate from the first substrate among the plurality of substrates.
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