Zobrazeno 1 - 10 of 33 pro vyhledávání: '"Ji Yong Jeong"'
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Akademický článek
Daily life activities of young adults with obesity living in highly accessible and compact urban environments in Seoul, South Korea: a spatiotemporal qualitative study protocol
Autor: Jihyun Lee, Dong Ha Kim, Seunghyun Yoo, Eunice Hong Lim Lee, Ji Yong Jeong
Publikováno v: BMJ Open, Vol 14, Iss 3 (2024)
Introduction Amid the growing global concern about obesity, young adults in South Korea are particularly affected, with 30.8% of people aged 19–34 classified as obese. Given the urban-centric lifestyle of Korean youth, understanding the relationshi
Externí odkaz: https://doaj.org/article/e86c7e9c2da5485492af2b70e5501314
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2
Akademický článek
A High Frame Rate Analog Front-End IC With Piezoelectric Micromachined Ultrasound Transducers Using Analog Multi-Line Acquisition for Ultrasound Imaging Systems
Autor: Ji-Yong Jeong, Jong-Keun Song, Min-Seog Choi, Seong-Kwan Hong, Oh-Kyong Kwon
Publikováno v: IEEE Access, Vol 9, Pp 119298-119309 (2021)
This paper proposes a high frame rate analog front-end (AFE) IC combined with a piezoelectric micromachined ultrasonic transducer (PMUT) for ultrasound imaging systems (UISs). The proposed AFE IC, which consists of 8-channel transceivers and a periph
Externí odkaz: https://doaj.org/article/98ddb0833a994070bc98f49b4b679ae2
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4
A High-Speed and Energy-Efficient Multi-Bit Cyclic ADC Using Single-Slope Quantizer for CMOS Image Sensors
Autor: Ji-Yong Jeong, Oh-Kyong Kwon, Junbo Shim, Seong-Kwan Hong
Publikováno v: IEEE Transactions on Circuits and Systems II: Express Briefs. 68:2322-2326
This brief proposes a high-speed and power-efficient multi-bit cyclic analog-to-digital converter (MC ADC) for CMOS image sensor applications. The proposed 13-bit MC ADC, which uses a 4-bit single-slope (SS) quantizer as a sub-ADC, resolves the sampl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a920e39eb6fe3542beb18b2ca37a608f
https://doi.org/10.1109/tcsii.2021.3062139
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8
A Low-Power Analog Delay Line Using a Current-Splitting Method for 3-D Ultrasound Imaging Systems
Autor: Ji-Yong Jeong, Seong-Kwan Hong, Sung-Jin Jung, Jae-Sung An, Oh-Kyong Kwon
Publikováno v: IEEE Transactions on Circuits and Systems II: Express Briefs. 65:829-833
We propose an analog delay line (ADL) that adopts a current-splitting method (CSM) to reduce power consumption. The proposed ADL employs a pipelined sample-and-hold architecture and includes a buffer in the analog memory cell to prevent a charge shar
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d7aa6ad17e0bd9d71df95e5d49d5da2c
https://doi.org/10.1109/tcsii.2017.2717042
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10
A 3.9-kHz Frame Rate and 61.0-dB SNR Analog Front-End IC With 6-bit Pressure and Tilt Angle Expressions of Active Stylus Using Multiple-Frequency Driving Method for Capacitive Touch Screen Panels
Autor: Dong-Hyun Yoon, Kwang-Hyun Baek, Seung Hwan Lee, Jae-Sung An, Ji-Yong Jeong, Han-Hee Hong, Sang-Hyun Han, Oh-Kyong Kwon, Young-Hwan Kim, Sung-Jin Jung, Ju Eon Kim, Jae-Hun Ye, Seong-Kwan Hong
Publikováno v: IEEE Journal of Solid-State Circuits. 53:187-203
This paper proposes an analog front-end (AFE) IC using a multiple-frequency driving method (MFDM). The proposed AFE IC achieves a high signal-to-noise ratio (SNR) by using an external noise spectrum and locating the frequencies of the excitation sign
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cc7cb47192259c286ecb9c5a42ed3ed2
https://doi.org/10.1109/jssc.2017.2759191
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