Zobrazeno 1 - 10 of 31 pro vyhledávání: '"Jimin Cheon"'
3
A CMOS Image Sensor with a Novel Passive Pixel Array and High Precision Current Amplifier for a Compact Digital X-ray Detector
Autor: Jimin Cheon, Hojong Choi, Dongmyung Lee
Publikováno v: Journal of Medical Imaging and Health Informatics. 10:2745-2753
An active pixel sensor (APS) in a digital X-ray detector is the dominant circuitry for a CMOS image sensor (CIS) despite its lower fill factor (FF) compared to that of a passive pixel sensor (PPS). Although the PPS provides higher FF, its overall sig
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::480da1b141098a7326eea3379dc1a50b
https://doi.org/10.1166/jmihi.2020.3210
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4
A 640 $\times$ 640 Fully Dynamic CMOS Image Sensor for Always-On Operation
Autor: Jimin Cheon, Chanmin Park, Byungchoul Park, Youngcheol Chae, Woojin Jo, Injun Park
Publikováno v: IEEE Journal of Solid-State Circuits. 55:898-907
This article presents a 640 $\times $ 640 fully dynamic CMOS image sensor for the always-on operation. It consists of a dynamic pixel source follower (SF), whose output signal is sampled into a parasitic column capacitor and then read out by a dynami
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::30693607db02b93efd138ecb77c0da6f
https://doi.org/10.1109/jssc.2019.2959486
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5
Decoupling the contributions to the enhancement of electrical conductivity in transparent silver nanowire/zinc oxide composite electrodes
Autor: Dongwook Ko, Jae-Seung Roh, Bongjun Gu, Dong Choon Hyun, Jimin Cheon, Sung Jin Jo, Chang Su Kim, Jong Bok Kim
Publikováno v: Materials Chemistry and Physics. 223:634-640
Electrical properties of silver nanowire (AgNW)-based transparent electrodes have been improved without transmittance loss by forming a composite with zinc oxide (ZnO). Here, we identified the dominant effect responsible for the improvement of electr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9ec81f90067e40c056813a81c2f0a2a
https://doi.org/10.1016/j.matchemphys.2018.11.053
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8
A 640×640 Fully Dynamic CMOS Image Sensor for Always-On Object Recognition
Autor: Woojin Jo, Byungchoul Park, Jimin Cheon, Youngcheol Chae, Injun Park, Chanmin Park
Publikováno v: VLSI Circuits
This paper presents a $640\times 640$ fully dynamic CMOS image sensor for always-on object recognition. A pixel output is sampled with a dynamic source follower (SF) into a parasitic column capacitor, which is readout by a dynamic single-slope (SS) A
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea14f8c7c543781744223f18a9380a51
https://doi.org/10.23919/vlsic.2019.8778169
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9
5.4 A 76mW 500fps VGA CMOS Image Sensor with Time-Stretched Single-Slope ADCs Achieving 1.95e- Random Noise
Autor: Chanmin Park, Jimin Cheon, Youngcheol Chae, Injun Park
Publikováno v: ISSCC
The demand for high-frame-rate CMOS image sensors is steadily increasing. Column-parallel single-slope (SS) ADCs are widely used in CMOS image sensors, because they can be implemented with small area, low noise, and high energy efficiency. To achieve
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b526ed656892707102476d9c11bec60
https://doi.org/10.1109/isscc.2019.8662388
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10
Instrumentation for Time-of-Flight Positron Emission Tomography
Autor: Eva Pratiwi, Jimin Cheon, Hojong Choi, Muhammad Nasir Ullah, Jung Yeol Yeom
Publikováno v: Nuclear Medicine and Molecular Imaging. 50:112-122
Positron emission tomography (PET) is a molecular imaging modality that provides information at the molecular level. This system is composed of radiation detectors to detect incoming coincident annihilation gamma photons emitted from the radiopharmac
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddffa11641425e2bd5e675f54a0743d2
https://doi.org/10.1007/s13139-016-0401-5
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