PUBLICATIONS & PATENTS

Research Outputs

Selected journal articles, conference papers, workshop presentations, and patents in sensor-interface ICs and intelligent sensing.

2026
LATEST PUBLICATIONSJournal articles · Conference paper
03 PUBLICATIONS
IEEE Transactions on Circuits and Systems I: Regular Papers · Vol. 73, No. 8

A Multi-Step Noise Management TSP Controller IC for a 14.2-inch Single-Routed AMOLED Display

Hamin Lee, Wooseok Jang, Dabin Yun, Junseong Kim, Sangweun Kim, and Minsu Koo · DOI: 10.1109/TCSI.2026.3675862

JOURNAL
IEEE Solid-State Circuits Letters · Vol. 9, pp. 129–132

A Reconfigurable Multimode Readout IC for Nonconductive and Capacitive Sensing with 33.9-dB SNR on 6.5-in AMOLED Panels

Sang Wuen Kim, Jun Seong Kim, Dabin Yun, and Seunghoon Ko · DOI: 10.1109/LSSC.2026.3680164

JOURNAL
2026 IEEE International Symposium on Circuits and Systems · ISCAS

A Strain-Gauge Readout Circuit with SAR-Based Current Calibration for Sensor Variation Compensation in Side-Button Applications

Dabin Yun, Sangweun Kim, Junseong Kim, Sumin Song, Minsoo Koo, and Seunghoon Ko · DOI: 10.1109/ISCAS66217.2026.11562413

CONFERENCE
2025
PUBLICATIONSJournal article · Conference papers
03 PUBLICATIONS
Applied Sciences · Vol. 15, No. 4, 1845

Analog Gaussian-Shaped Filter Design and Current Mode Compensation for Dot-Matrix TSP Readout Systems

Seunghoon Ko · DOI: 10.3390/app15041845

JOURNAL
2025 IEEE Asian Solid-State Circuits Conference · A-SSCC

A Multi-Mode Readout IC Achieving 33.9dB SNR at 131Hz for Non-Conductive Touch on a 6.5” AMOLED Panel

Sang Wuen Kim, Jun Seong Kim, Dabin Yun, and Seunghoon Ko · DOI: 10.1109/A-SSCC67472.2025.11349464

CONFERENCE
2025 IEEE Asia Pacific Conference on Circuits and Systems · APCCAS

A Perspective on Self-Capacitive Readout Architectures for In-Cell Touch Panels

Jun Seong Kim, Dabin Yun, Sang Wuen Kim, Wooseok Jang, Hamin Lee, and Seunghoon Ko · DOI: 10.1109/APCCAS67402.2025.11378381

CONFERENCE
2024
RECENT PUBLICATIONSJournals · Conferences · Workshops
09 PUBLICATIONS
24th RF/Analog Circuit Workshop

Mitigating Noise in Advanced Touch Screen Panels Using a 2nd-order Bandpass Filter with Current Conveyor

H. Lee, J. Ham, W. Jang, S. Kim, D. Yun, J. Kim, and S. Ko

WORKSHOP
24th RF/Analog Circuit Workshop

Robust Touch Screen Readout to Display Noise Using Gaussian Filtering for Flexible AMOLED Display

J. Ham, W. Jang, H. Lee, S. Kim, D. Yun, J. Kim, and S. Ko

WORKSHOP
Journal of the Korean Institute of Electrical and Electronic Material Engineers

Advancements in Capacitive Touch System and Stylus Technologies

H. Lee and S. Ko

JOURNAL
International SoC Design Conference · ISOCC 2024

A Highly Noise-Immune TSP Readout System with 2nd-order Bandpass Filtering Current Conveyor AFE

H. Lee, J. Ham, W. Jang, S. Kim, D. Yun, J. Kim, and S. Ko

CONFERENCE
International SoC Design Conference · ISOCC 2024

Reconfigurable Gaussian Filtering TSP Readout Circuit for Flexible AMOLED Display

J. Ham, W. Jang, H. Lee, S. Kim, D. Yun, J. Kim, and S. Ko

CONFERENCE
IEEE Solid-State Circuits Letters

A 620pF-Compensated Dual-Mode Capacitance Readout IC for Sub-display Panel Applications

H. Lee, J. Ham, W. Jang, J. Lee, and S. Ko

JOURNAL
IEEE Access

Reconfigurable Capacitance Readout IC with Hysteresis Loop Filtering for Enhanced 2-D Touch and 3-D Proximity Sensing

J. Ham, W. Jang, H. Lee, J. Lee, and S. Ko

JOURNAL
IEEE Transactions on Circuits and Systems II · TCAS-II

A Compact and Adjustable Matrix Synthesis Method for Multi-Driving of Capacitive TSP

J. Ham, W. Jang, H. Lee, J. Lee, and S. Ko

JOURNAL
IEEE International Solid-State Circuits Conference · ISSCC

A 620pF-Compensated Dual-Mode Capacitance Readout IC for Sub-Display TSP with VRR Scan

J. Lee, J. Ham, W. Jang, H. Lee, and S. Ko

CONFERENCE
2023
PUBLICATIONSJournal articles and conference papers
03 PUBLICATIONS
IEEE Sensors

A 145-μW Always-on Touch Screen Readout and Always-on Haptic Driver IC for 1.26-Inch Circular Display of Wearable Device

J. Lee, J. Ham, W. Jang, H. Lee, J. Oh, S. Goo, and S. Ko

JOURNAL
Journal of the Korean Institute of Electrical and Electronic Material Engineers · Vol. 36, No. 5, pp. 423–432

Recent Research Trends in Touchscreen Readout Systems

J. Lee, J. Ham, W. Jang, H. Lee, S. Goo, J. Oh, and S. Ko

JOURNAL
IEEE International Solid-State Circuits Conference · ISSCC · pp. 384–385

Virtual Rotating Gesture Recognizable Touch Readout IC for 1.26” Circular Touch Screen Panel

S. Ko, J. Lee, J. Ham, B. So, D. Cho, H. Kim, B. Kim, W. Sim, and G. Youm

CONFERENCE
2022~
PREVIOUS PUBLICATIONSAll earlier works, listed continuously in reverse chronological order
16 PUBLICATIONS
Sensors · Vol. 22, No. 5178

NaCl Ionization-Based Moisture Sensor Prepared by Aerosol Deposition for Monitoring Respiratory Patterns

M. Cho, I. Kim, M. Kim, D. Hyun, S. Koo, H. Sohn, N. Kim, S. Kim, S. Ko, and J. Oh

JOURNAL
IEIE Summer Annual Conference

Design of Touch Controller IC Based on Differential Current Conveyor Robust to Display Noises

H. Kim, J. Lee, H. Lee, J. Ham, and S. Ko

CONFERENCE
Micromachines · Vol. 13, No. 942

Robust Touch Screen Readout System to Display Noise Using Multireference Differential Sensing Scheme for Flexible AMOLED Display

J. Lee, H. Kim, J. Ham, and S. Ko

JOURNAL
Materials · Vol. 15, No. 4283

Fabrication of Large-Area Mullite–Cordierite Composite Substrates for Semiconductor Probe Cards and Enhancement of Their Reliability

D. Hyun, J. Jeon, Y. Lee, Y. Kim, M. Kim, S. Ko, S. Koo, W. Shin, C. Park, D. Lee, and J. Oh

JOURNAL
The Korean Conference on Semiconductors · KCS 2022

Research Trend of Sensor Readout System in Mobile Devices

S. Ko

CONFERENCE
Micromachines · Vol. 12, No. 922

A Mutual Capacitance Touch Readout IC with Synchronization in Touch and Mobile Display Driving for High Refresh Rate AMOLED Panels

S. Ko

JOURNAL
IEEE Sensors · Vol. 2, No. 9, pp. 4778–4786

A Mutual-Capacitance 3-D Gesture Sensing System Based on 2-D Orthogonal Encoding and an Un-Folding Coordinate Interpolation Schemes

S. Ko

JOURNAL
IEEE Transactions on Circuits and Systems I: Regular Papers · Vol. 67, No. 4, pp. 1126–1135

A −24 dB In-Band Noise-Immunity Mutual Capacitance Readout System for Variable Refresh Rate of Active-Matrix OLED Display

S. Ko

JOURNAL
IEEE Transactions on Circuits and Systems II: Express Briefs · Vol. 66, No. 8, pp. 1321–1325

An Ultra-Compact Low-Power Self-Capacitive Touch Screen Readout IC Embedding Reconfigurable Noise Immunity and Current-Driven Capacitance Compensation

S. Ko and B. Yang

JOURNAL
IEEE Symposium on VLSI Circuits · SOVC · pp. C218–C219

An Automatic Ear Detection Technique in Capacitive Sensing Readout IC Using Cascaded Classifiers and Hovering Function

S. Ko

CONFERENCE
IEEE International Symposium on Circuits and Systems · ISCAS

An Interference-Resilient 31×15 Touch-Screen Panel Read-Out IC Based on Chirp Spread Spectrum and Pseudo-Random Orthogonal Sequences

S. Ko and B. Yang

CONFERENCE
IEEE International Solid-State Circuits Conference · ISSCC · pp. 218–219

2D Coded-Aperture-Based Ultra-Compact Capacitive Touch-Screen Controller with 40 Reconfigurable Channels

H. Jang, H. Shin, S. Ko, I. Yun, and K. Lee

CONFERENCE
IEEE Symposium on VLSI Circuits · SOVC · pp. C216–C217

A 70 dB SNR Capacitive Touch Screen Panel Readout IC Using Capacitor-Less Trans-Impedance Amplifier and Coded Orthogonal Frequency-Division Multiple Sensing Scheme

S. Ko, H. Shin, H. Jang, I. Yun, and K. Lee

CONFERENCE
IEEE International Solid-State Circuits Conference · ISSCC · pp. 388–389

A 55 dB SNR with 240 Hz Frame Scan Rate Mutual Capacitor 30×24 Touch-Screen Panel Read-Out IC Using Code-Division Multiple Sensing Technique

H. Shin, S. Ko, H. Jang, I. Yun, and K. Lee

CONFERENCE
International SoC Design Conference · ISOCC

A Compact and Low-Noise Analog Front-End for Capacitive Touch-Panel Controller

H. Jang, S. Ko, H. Shin, and K. Lee

CONFERENCE
IEEE Asian Solid-State Circuits Conference · A-SSCC

Low-Noise Capacitive Sensor for Multi-Touch Mobile Handset Applications

S. Ko, H. Shin, J. Lee, H. Jang, B. So, and K. Lee

CONFERENCE

INTELLECTUAL PROPERTY

Patents

Granted and published United States patents related to touch sensing, pressure sensing, haptics, and electronic-device interaction.

202301 PATENT
US11709564B2

Electronic Device Comprising Sensor for Touch Recognition and Sensor for Hovering Recognition, and Method for Operating Same

Hoondo Heo, Sangheon Park, Seunghoon Ko, Minuk Kim, and Keunsik Lee

US PATENT
202206 PATENTS
US11422666B2

Electronic Device Including Touch Sensor IC and Operation Method Thereof

Seunghoon Ko, Hoondo Heo, Dongchul Kim, Jooyoung Park, and Eunsung Cho

US PATENT
US11347393B2

Electronic Device for Processing Wheel Input and Operation Method Thereof

Seungwan Woo, Chulheon Jeong, Hyuksoon Choi, Hyunseok Yang, Seunghoon Ko, and Sangheon Kim

US PATENT
US11302258B2

Method for Operating Electronic Device and Electronic Device for Supporting the Same

Jong Kon Bae, Yo Han Lee, Dong Hwy Kim, Seunghoon Ko, Tae Sung Kim, and Dong Kyoon Han

US PATENT
US11294496B2

Operation Method Based on Touch Input and Electronic Device Thereof

Seunghoon Ko and Daehyun Yoo

US PATENT
US11243634B2

Flexible Display and Electronic Device Equipped with Same

Seunghoon Ko, Gidae Kim, Jungchul An, Joungmin Cho, Kwangtai Kim, and Hyungsup Byeon

US PATENT
US20220019332A1

Electronic Device Including Touch Sensor and Method for Driving Touch Sensor Included in Electronic Device

Seunghoon Ko and Bongjun Ko

US PATENT
2021—202006 PATENTS
US11209949B2

Electronic Device Including Touch Sensor IC and Operation Method Thereof

Seunghoon Ko, Hoondo Heo, Dongchul Kim, Jooyoung Park, and Eunsung Cho

US PATENT
US11204645B2

Method for Providing Haptic Feedback, and Electronic Device for Performing Same

Seunghoon Ko, Dae Hyun Yoo, Heon Seok Lee, and Eun Mi Cha

US PATENT
US11169619B2

Electronic Device Comprising Flexible Display, and Key Button Arrangement Structure Applied to Same

Gidae Kim, Seunghoon Ko, Jungchul An, Joungmin Cho, Kwangtai Kim, and Hyungsup Byeon

US PATENT
US11163404B2

Device and Method for Compensating for Temperature Change in Strain-Gauge Pressure Sensor and Method for Implementing Strain-Gauge Pressure from Touchscreen Element

Seunghoon Ko, Bongjun Ko, Aram Song, and Hoondo Heo

US PATENT
US11086447B2

Electronic Device and Method for Controlling Touch Sensor Controller on Basis of Image Synchronization Signal

Jongkon Bae, Donghui Kim, Seunghoon Ko, Wooyoung Oh, and Dongkyoon Han

US PATENT
US10643545B2

Method and Apparatus for Merging Images by Electronic Device

JongKon Bae, Yo Han Lee, Dong Hwy Kim, SeungHoon Ko, Tae Sung Kim, and Dong Kyoon Han

US PATENT