Hojong Choi

According to our database, Hojong Choi authored at least 38 papers between 2014 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Design of Preamplifier for Ultrasound Transducers.

Hojong Choi

Sensors, February, 2024

2023

An Inverse Class-E Power Amplifier for Ultrasound Transducer.

Hojong Choi

Sensors, April, 2023

A Doherty Power Amplifier for Ultrasound Instrumentation.

Hojong Choi

Sensors, March, 2023

Harmonic-Reduced Bias Circuit for Ultrasound Transducers.

Hojong Choi

Sensors, 2023

2022

Fully Customized Photoacoustic System Using Doubly Q-Switched Nd: YAG Laser and Multiple Axes Stages for Laboratory Applications.

Unsang Jung, Jin Hyuck Choi, Han Tae Choo, Gyu Ug Kim, Jaemyung Ryu, Hojong Choi

Sensors, 2022

Low-Area Four-Channel Controlled Dielectric Breakdown System Design for Point-of-Care Applications.

Jonggi Hong, Yeonji Oh, Hojong Choi, Jungsuk Kim

Sensors, 2022

A Mathematically Generated Noise Technique for Ultrasound Systems.

Hojong Choi, Seunghyeok Shin

Sensors, 2022

Whitening Technique Based on Gram-Schmidt Orthogonalization for Motor Imagery Classification of Brain-Computer Interface Applications.

Hojong Choi, Junghun Park, Yeon-Mo Yang

Sensors, 2022

A Novel Quick-Response Eigenface Analysis Scheme for Brain-Computer Interfaces.

Hojong Choi, Junghun Park, Yeon-Mo Yang

Sensors, 2022

Pre-Matching Circuit for High-Frequency Ultrasound Transducers.

Hojong Choi

Sensors, 2022

Hexagonal Stimulation Digital Controller Design and Verification for Wireless Subretinal Implant Device.

Wajahat H. Abbasi, Hojong Choi, Jungsuk Kim

Sensors, 2022

2021

Simultaneous Acquisition of Ultrasound and Gamma Signals with a Single-Channel Readout.

Muhammad Nasir Ullah, Yuseung Park, Gyeong Beom Kim, Chanho Kim, Chansun Park, Hojong Choi, Jung-Yeol Yeom

Sensors, 2021

Printed Circuit Board Defect Detection Using Deep Learning via A Skip-Connected Convolutional Autoencoder.

Jungsuk Kim, Jungbeom Ko, Hojong Choi, Hyunchul Kim

Sensors, 2021

A New Approach to Power Efficiency Improvement of Ultrasonic Transmitters via a Dynamic Bias Technique.

Kyeongjin Kim, Hojong Choi

Sensors, 2021

Novel Bandwidth Expander Supported Power Amplifier for Wideband Ultrasound Transducer Devices.

Kyeongjin Kim, Hojong Choi

Sensors, 2021

Ambient Light Rejection Integrated Circuit for Autonomous Adaptation on a Sub-Retinal Prosthetic System.

Hosung Kang, Hojong Choi, Jungsuk Kim

Sensors, 2021

2020

A Class-J Power Amplifier Implementation for Ultrasound Device Applications.

Kiheum You, Seung-Hwan Kim, Hojong Choi

Sensors, 2020

Inter-Stage Output Voltage Amplitude Improvement Circuit Integrated with Class-B Transmit Voltage Amplifier for Mobile Ultrasound Machines.

Kiheum You, Hojong Choi

Sensors, 2020

Wide Bandwidth Class-S Power Amplifiers for Ultrasonic Devices.

Kiheum You, Hojong Choi

Sensors, 2020

Wireless Ultrasound Surgical System with Enhanced Power and Amplitude Performances.

Jungsuk Kim, Kiheum You, Sun-Ho Choe, Hojong Choi

Sensors, 2020

Post-Voltage-Boost Circuit-Supported Single-Ended Class-B Amplifier for Piezoelectric Transducer Applications.

Jungsuk Kim, Kiheum You, Hojong Choi

Sensors, 2020

Development of an Accurate Resonant Frequency Controlled Wire Ultrasound Surgical Instrument.

Jungsuk Kim, Kyeongjin Kim, Sun-Ho Choe, Hojong Choi

Sensors, 2020

A CMOS Image Sensor with a Novel Passive Pixel Array and High Precision Current Amplifier for a Compact Digital X-ray Detector.

Jimin Cheon, Dongmyung Lee, Hojong Choi

J. Medical Imaging Health Informatics, 2020

2019

A Macro Lens-Based Optical System Design for Phototherapeutic Instrumentation.

Hojong Choi, Se-woon Choe, Jaemyung Ryu

Sensors, 2019

Acoustic Stimulation by Shunt-Diode Pre-Linearizer Using Very High Frequency Piezoelectric Transducer for Cancer Therapeutics.

Hojong Choi, Se-woon Choe

Sensors, 2019

Stacked Transistor Bias Circuit of Class-B Amplifier for Portable Ultrasound Systems.

Hojong Choi

Sensors, 2019

Class-C Linearized Amplifier for Portable Ultrasound Instruments.

Hojong Choi

Sensors, 2019

Prelinearized Class-B Power Amplifier for Piezoelectric Transducers and Portable Ultrasound Systems.

Hojong Choi

Sensors, 2019

Image Formation Technique Using Advanced Matrix Pattern in Fourier Transform for Medical Ultrasound Machine.

Seunghyeok Shin, Hojong Choi

J. Medical Imaging Health Informatics, 2019

2018

Development of a Multiwavelength Visible-Range-Supported Opto-Ultrasound Instrument Using a Light-Emitting Diode and Ultrasound Transducer.

Hojong Choi, Jung-Yeol Yeom, Jaemyung Ryu

Sensors, 2018

Therapeutic Effect Enhancement by Dual-Bias High-Voltage Circuit of Transmit Amplifier for Immersion Ultrasound Transducer Applications.

Hojong Choi, Se-woon Choe

Sensors, 2018

Suppression Technique of HeLa Cell Proliferation Using Ultrasonic Power Amplifiers Integrated with a Series-Diode Linearizer.

Se-woon Choe, Hojong Choi

Sensors, 2018

2017

Power MOSFET Linearizer of a High-Voltage Power Amplifier for High-Frequency Pulse-Echo Instrumentation.

Hojong Choi, Park Chul Woo, Jung-Yeol Yeom, Changhan Yoon

Sensors, 2017

Development of a Double-Gauss Lens Based Setup for Optoacoustic Applications.

Hojong Choi, Jaemyung Ryu, Jung-Yeol Yeom

Sensors, 2017

Bias-Voltage Stabilizer for HVHF Amplifiers in VHF Pulse-Echo Measurement Systems.

Hojong Choi, Chulwoo Park, Jungsuk Kim, Hayong Jung

Sensors, 2017

2016

A Novel Fisheye-Lens-Based Photoacoustic System.

Hojong Choi, Jaemyung Ryu, Jungsuk Kim

Sensors, 2016

2015

Parallel dynamic subcarrier and time allocation protocol for long-reach OFDMA-PONs.

Wansu Lim, Pandelis Kourtessis, Milos Milosavljevic, John M. Senior, Hojong Choi

Proceedings of the 2015 IEEE International Conference on Communications, 2015

2014

Protection Circuits for Very High Frequency Ultrasound Systems.

Hojong Choi, K. Kirk Shung

J. Medical Syst., 2014