Ji-Yong Um

Publication Activity (10 Years)

Years Active: 2011-2024
Publications (10 Years): 6

Top Topics

Transient Response

Wide Dynamic Range

Ultrasound Imaging

Cmos Image Sensor

Top Venues

IEEE Trans. Biomed. Circuits Syst.

IEEE Trans. Circuits Syst. II Express Briefs

Publications

Young-Chan Lee, Doo-Hyeon Ko, Min-Hyeong Son, Se-Hwan Yang, Ji-Yong Um
Arterial Distension Monitoring Scheme Using FPGA-Based Inference Machine in Ultrasound Scanner Circuit System. IEEE Trans. Biomed. Circuits Syst. 18 (3) (2024)
Chang-Su Lee, Ji-Yong Um, Mi-Hyang Jeon
Design and implementation of autonomous collaboration service between IoT using distributed platform. ICUFN (2023)
Doo-Hyeon Ko, Young-Chan Lee, Ji-Yong Um
Center Frequency Tracking Scheme to Optimize Pulse-Echo Response of Ultrasonic A-mode Scanner Circuit System. IEEE Access 11 (2023)
Ji-Yong Um
A Compact Variable Gain Amplifier With Continuous Time-Gain Compensation Using Systematic Predistorted Gain Control. IEEE Trans. Circuits Syst. II Express Briefs 69 (2) (2022)
Min-Hyeong Son, Young-Chan Lee, Hyun-Min Baek, Hyo-Jeong Choi, Ji-Yong Um
A Programmable Gain Amplifier with Fast Transient Response for Medical Ultrasound System. ISOCC (2022)
Yoon-Jee Kim, Sung-Eun Cho, Ji-Yong Um, Min-Kyun Chae, Jihoon Bang, Jongkeun Song, Taeho Jeon, Byungsub Kim, Jae-Yoon Sim, Hong-June Park
A Single-Chip 64-Channel Ultrasound RX-Beamformer Including Analog Front-End and an LUT for Non-Uniform ADC-Sample-Clock Generation. IEEE Trans. Biomed. Circuits Syst. 11 (1) (2017)
Peter Ahn, Ji-Yong Um, Eunjung Choi, Hyunmook Park, Jaseung Gou, Kwangjun Cho, Kangbong Seo, Sangdong Yoo
Power noise rejection and device noise analysis at the reference level of ramp ADC. IMSE (2015)
Ji-Yong Um, Yoon-Jee Kim, Seong-Eun Cho, Min-Kyun Chae, Byungsub Kim, Jae-Yoon Sim, Hong-June Park
A Single-Chip 32-Channel Analog Beamformer With 4-ns Delay Resolution and 768-ns Maximum Delay Range for Ultrasound Medical Imaging With a Linear Array Transducer. IEEE Trans. Biomed. Circuits Syst. 9 (1) (2015)
Ji-Yong Um, Eun-Woo Song, Yoon-Jee Kim, Seong-Eun Cho, Min-Kyun Chae, Jongkeun Song, Bae-Hyung Kim, Seunghun Lee, Jihoon Bang, Youngil Kim, Kyungil Cho, Byungsub Kim, Jae-Yoon Sim, Hong-June Park
24.8 An analog-digital-hybrid single-chip RX beamformer with non-uniform sampling for 2D-CMUT ultrasound imaging to achieve wide dynamic range of delay and small chip area. ISSCC (2014)
Ji-Yong Um, Yoon-Jee Kim, Seong-Eun Cho, Min-Kyun Chae, Jongkeun Song, Bae-Hyung Kim, Seung-Hun Lee, Jihoon Bang, Youngil Kim, Kyungil Cho, Byungsub Kim, Jae-Yoon Sim, Hong-June Park
An Analog-Digital Hybrid RX Beamformer Chip With Non-Uniform Sampling for Ultrasound Medical Imaging With 2D CMUT Array. IEEE Trans. Biomed. Circuits Syst. 8 (6) (2014)
Ji-Yong Um, Yoon-Jee Kim, Eun-Woo Song, Jae-Yoon Sim, Hong-June Park
A Digital-Domain Calibration of Split-Capacitor DAC for a Differential SAR ADC Without Additional Analog Circuits. IEEE Trans. Circuits Syst. I Regul. Pap. (11) (2013)
Jae-Hwan Kim, Ji-Yong Um, Jae-Yoon Sim, Hong-June Park
Time-interleaved sample clock generator for ultrasound beamformer application. ISOCC (2011)
Ji-Yong Um, Jae-Hwan Kim, Jae-Yoon Sim, Hong-June Park
Digital-domain calibration of split-capacitor DAC with no extra calibration DAC for a differential-type SAR ADC. A-SSCC (2011)