Hojong Choi

Publication Activity (10 Years)

Years Active: 2014-2024
Publications (10 Years): 37

Top Topics

Cmos Image Sensor

Fourier Transform

Gram Schmidt Orthogonalization

High Frequencies

Top Venues

J. Medical Imaging Health Informatics

J. Medical Syst.

Publications

Hojong Choi
Design of Preamplifier for Ultrasound Transducers. Sensors 24 (3) (2024)
Hojong Choi
A Doherty Power Amplifier for Ultrasound Instrumentation. Sensors 23 (5) (2023)
Hojong Choi
Harmonic-Reduced Bias Circuit for Ultrasound Transducers. Sensors 23 (9) (2023)
Hojong Choi
An Inverse Class-E Power Amplifier for Ultrasound Transducer. Sensors 23 (7) (2023)
Hojong Choi, Junghun Park, Yeon-Mo Yang
Whitening Technique Based on Gram-Schmidt Orthogonalization for Motor Imagery Classification of Brain-Computer Interface Applications. Sensors 22 (16) (2022)
Hojong Choi
Pre-Matching Circuit for High-Frequency Ultrasound Transducers. Sensors 22 (22) (2022)
Jonggi Hong, Yeonji Oh, Hojong Choi, Jungsuk Kim
Low-Area Four-Channel Controlled Dielectric Breakdown System Design for Point-of-Care Applications. Sensors 22 (5) (2022)
Hojong Choi, Seunghyeok Shin
A Mathematically Generated Noise Technique for Ultrasound Systems. Sensors 22 (24) (2022)
Unsang Jung, Jin Hyuck Choi, Han Tae Choo, Gyu Ug Kim, Jaemyung Ryu, Hojong Choi
Fully Customized Photoacoustic System Using Doubly Q-Switched Nd: YAG Laser and Multiple Axes Stages for Laboratory Applications. Sensors 22 (7) (2022)
Hojong Choi, Junghun Park, Yeon-Mo Yang
A Novel Quick-Response Eigenface Analysis Scheme for Brain-Computer Interfaces. Sensors 22 (15) (2022)
Wajahat H. Abbasi, Hojong Choi, Jungsuk Kim
Hexagonal Stimulation Digital Controller Design and Verification for Wireless Subretinal Implant Device. Sensors 22 (8) (2022)
Jungsuk Kim, Jungbeom Ko, Hojong Choi, Hyunchul Kim
Printed Circuit Board Defect Detection Using Deep Learning via A Skip-Connected Convolutional Autoencoder. Sensors 21 (15) (2021)
Kyeongjin Kim, Hojong Choi
A New Approach to Power Efficiency Improvement of Ultrasonic Transmitters via a Dynamic Bias Technique. Sensors 21 (8) (2021)
Hosung Kang, Hojong Choi, Jungsuk Kim
Ambient Light Rejection Integrated Circuit for Autonomous Adaptation on a Sub-Retinal Prosthetic System. Sensors 21 (16) (2021)
Muhammad Nasir Ullah, Yuseung Park, Gyeong Beom Kim, Chanho Kim, Chansun Park, Hojong Choi, Jung-Yeol Yeom
Simultaneous Acquisition of Ultrasound and Gamma Signals with a Single-Channel Readout. Sensors 21 (4) (2021)
Kyeongjin Kim, Hojong Choi
Novel Bandwidth Expander Supported Power Amplifier for Wideband Ultrasound Transducer Devices. Sensors 21 (7) (2021)
Jimin Cheon, Dongmyung Lee, Hojong Choi
A CMOS Image Sensor with a Novel Passive Pixel Array and High Precision Current Amplifier for a Compact Digital X-ray Detector. J. Medical Imaging Health Informatics 10 (11) (2020)
Jungsuk Kim, Kyeongjin Kim, Sun-Ho Choe, Hojong Choi
Development of an Accurate Resonant Frequency Controlled Wire Ultrasound Surgical Instrument. Sensors 20 (11) (2020)
Kiheum You, Hojong Choi
Wide Bandwidth Class-S Power Amplifiers for Ultrasonic Devices. Sensors 20 (1) (2020)
Jungsuk Kim, Kiheum You, Sun-Ho Choe, Hojong Choi
Wireless Ultrasound Surgical System with Enhanced Power and Amplitude Performances. Sensors 20 (15) (2020)
Jungsuk Kim, Kiheum You, Hojong Choi
Post-Voltage-Boost Circuit-Supported Single-Ended Class-B Amplifier for Piezoelectric Transducer Applications. Sensors 20 (18) (2020)
Kiheum You, Seung-Hwan Kim, Hojong Choi
A Class-J Power Amplifier Implementation for Ultrasound Device Applications. Sensors 20 (8) (2020)
Kiheum You, Hojong Choi
Inter-Stage Output Voltage Amplitude Improvement Circuit Integrated with Class-B Transmit Voltage Amplifier for Mobile Ultrasound Machines. Sensors 20 (21) (2020)
Seunghyeok Shin, Hojong Choi
Image Formation Technique Using Advanced Matrix Pattern in Fourier Transform for Medical Ultrasound Machine. J. Medical Imaging Health Informatics 9 (9) (2019)
Hojong Choi, Se-woon Choe, Jaemyung Ryu
A Macro Lens-Based Optical System Design for Phototherapeutic Instrumentation. Sensors 19 (24) (2019)
Hojong Choi
Prelinearized Class-B Power Amplifier for Piezoelectric Transducers and Portable Ultrasound Systems. Sensors 19 (2) (2019)
Hojong Choi, Se-woon Choe
Acoustic Stimulation by Shunt-Diode Pre-Linearizer Using Very High Frequency Piezoelectric Transducer for Cancer Therapeutics. Sensors 19 (2) (2019)
Hojong Choi
Class-C Linearized Amplifier for Portable Ultrasound Instruments. Sensors 19 (4) (2019)
Hojong Choi
Stacked Transistor Bias Circuit of Class-B Amplifier for Portable Ultrasound Systems. Sensors 19 (23) (2019)
Hojong Choi, Se-woon Choe
Therapeutic Effect Enhancement by Dual-Bias High-Voltage Circuit of Transmit Amplifier for Immersion Ultrasound Transducer Applications. Sensors 18 (12) (2018)
Se-woon Choe, Hojong Choi
Suppression Technique of HeLa Cell Proliferation Using Ultrasonic Power Amplifiers Integrated with a Series-Diode Linearizer. Sensors 18 (12) (2018)
Hojong Choi, Jung-Yeol Yeom, Jaemyung Ryu
Development of a Multiwavelength Visible-Range-Supported Opto-Ultrasound Instrument Using a Light-Emitting Diode and Ultrasound Transducer. Sensors 18 (10) (2018)
Hojong Choi, Chulwoo Park, Jungsuk Kim, Hayong Jung
Bias-Voltage Stabilizer for HVHF Amplifiers in VHF Pulse-Echo Measurement Systems. Sensors 17 (10) (2017)
Hojong Choi, Park Chul Woo, Jung-Yeol Yeom, Changhan Yoon
Power MOSFET Linearizer of a High-Voltage Power Amplifier for High-Frequency Pulse-Echo Instrumentation. Sensors 17 (4) (2017)
Hojong Choi, Jaemyung Ryu, Jung-Yeol Yeom
Development of a Double-Gauss Lens Based Setup for Optoacoustic Applications. Sensors 17 (3) (2017)
Hojong Choi, Jaemyung Ryu, Jungsuk Kim
A Novel Fisheye-Lens-Based Photoacoustic System. Sensors 16 (12) (2016)
Wansu Lim, Pandelis Kourtessis, Milos Milosavljevic, John M. Senior, Hojong Choi
Parallel dynamic subcarrier and time allocation protocol for long-reach OFDMA-PONs. ICC (2015)
Hojong Choi, K. Kirk Shung
Protection Circuits for Very High Frequency Ultrasound Systems. J. Medical Syst. 38 (4) (2014)