PUBLICATION
Book Chapter
[02] B. Lee and H.-M. Lee, "Wireless Applications: Biomedical Signals Telemetry System," in Handbook of Biochips: Integrated Circuits and Systems for Biology and Medicine, Ed. M. Sawan, Ch. 44, Springer, Feb. 2022.
[01] H.-M. Lee and M. Ghovanloo, "Energy Management Integrated Circuits for Wireless Power Transmission," in Implantable Biomedical Microsystems, Ed. S. Bhunia, Ch. 5, Elsevier Science & Technology, Feb. 2015.
Journal Papers (International)
[47] K. Noh, H. Kwak, J. Son, S. Kim, M. Um, M. Kang, D. Kim, W. Ji, J. Lee, H. Jo, J. Woo, H.-M. Lee, and S. Kim, "Retention-Aware Zero-Shifting Technique for Tiki-Taka Algorithm-Based Analog Deep Learning Accelerator," Science Advances, accepted.
[46] H. Jo, M. Kang, M. Um, J. Kim, K.-W. Kwon, S. Kim, and H.-M. Lee, "Verification of Neuromorphic Processing Accuracy against Non-Ideal Errors in Synapse-based Neural Network Systems," International Journal of Circuit Theory and Applications, accepted.
[45] W. Jung, H. Park, M. Kim, and H.-M. Lee, "A 94.9% Efficiency Always-Power-Delivered SIDO Buck Converter with Continuous Current Balancing and Complementary Adaptive-Switching Regulation," IEEE Journal of Solid-State Circuits, accepted.
[44] J. Song, M. Kim, H. Park, W. Jung, Y. Ahn, T. Nam, Y. Shin, Y.-J. Woo, and H.-M. Lee, "A 96.3%-Efficiency Wide-Voltage-Range Three-Level Boost Converter with Loop-Free Self-Balancing and Dead-Zone PWM Control for Backlight LED Drivers," IEEE Transactions on Power Electronics, vol. 39, no. 6, pp. 7064-7075, Jun. 2024.
[43] K. Eom, H.-S. Lee, M. Park, S. M. Yang, J. C. Choe, S.-W. Hwang, Y.-W. Suh, and H.-M. Lee, "A 92%-Efficiency Inductor-Charging Switched-Capacitor Stimulation System with Level-Adaptive Duty Modulation and Offset Charge Balancing," IEEE Journal of Solid-State Circuits, vol. 59, no. 5, pp. 1521-1531, May 2024.
[42] D. Kim, H. Roh, H.-M. Lee, S. J. Kim, and M. Im, "Localization of hyperpolarization-activated cyclic nucleotide-gated channels in the vertebrate retinas across species and their physiological roles," Frontiers in Neuroanatomy, vol. 18, Mar. 2024.
[41] M. Park, K. Eom, H.-S. Lee, S.-B. Ku, and H.-M. Lee, "A 9-V-Tolerant Stacked-Switched-Capacitor Stimulation System with Level-Adaptive Switch Control and Rapid Stimulus-Synchronized Charge Balancing for Implantable Devices," IEEE Journal of Solid-State Circuits, vol. 59, no. 3, pp. 817-829, Mar. 2024.
[40] W. Jung, M. Kim, H. Park, S.-M. Yoo, J.-H. Yang, M. Choi, J. Shin, and H.-M. Lee, "A 95.4% Hybrid Always-Dual-Path Recursive Step-Down Converter Using Adaptive Switching Level Control with 288mΩ Large-DCR Inductor," IEEE Transactions on Power Electronics, vol. 39, no. 2, pp. 2258-2269, Feb. 2024.
[39] D. Kim, H. Park, I. Yeo, Y. K. Lee, Y. Kim, H.-M. Lee, and K.-W. Kwon, "Rowhammer Attacks in Dynamic Random-Access Memory and Defense Methods," Sensors, vol. 24, no. 2, Jan. 2024.
[38] K. Eom, M. Park, H.-S. Lee, S.-B. Ku, N. Kim, S. Cha, Y. S. Goo, S. Kim, S.-W. Kim, and H.-M. Lee, "A Low-Stimulus-Scattering Pixel-Sharing Sub-Retinal Prosthesis SoC with Time-Based Photodiode Sensing and Per-Pixel Dynamic Voltage Scaling," IEEE Journal of Solid-State Circuits, vol. 58, no. 11, pp. 2976-2989, Nov. 2023.
[37] D. Lee, S. Lee, M. Cho, H.-M. Lee, and Y. Kim, "Security Problems of Latest FPGAs and Reverse Engineering Methods of Xilinx 7-series FPGAs," Journal of Semiconductor Technology and Science, vol. 23, no. 5, pp. 283-294, Oct. 2023.
[36] J. Won, J. Kang, S. Hong, N. Han, M. Kang, Y. Park, Y. Roh, H. Seo, C. Joe, U. Cho, M. Kang, M. Um, K.-H. Lee, J.-E. Yang, M. Jung, H.-M. Lee, S. Oh, S. Kim, and S. Kim, "Device-Algorithm Co-Optimization for an On-Chip Trainable Capacitor-Based Synaptic Device with IGZO TFT and Retention-Centric Tiki-Taka Algorithm," Advanced Science, vol. 10, no. 29, Oct. 2023.
[35] H. Park, W. Jung, M. Kim, and H.-M. Lee, "A Wide-Load-Range and High-Slew Capacitor-Less NMOS LDO with Adaptive-Gain Nested Miller Compensation and Pre-Emphasis Inverse Biasing," IEEE Journal of Solid-State Circuits, vol. 58, no. 10, pp. 2696-2708, Oct. 2023.
[34] K.-H. Lee, J.-H. Kim, K.-S. Shin, C.-U. Cha, and H.-M. Lee, "Complementary Multisplit Ring Resonant MEMS Sensor With Microfilter for Microplastics Concentration Measurement," IEEE Sensors Journal, vol. 23, no. 17, pp. 19105-19116, Sep. 2023.
[33] Y. Lee, W. Jung, S.-M. Yoo, T.-H. Kong, J.-H. Yang, M. Choi, J. Shin, and H.-M. Lee, "A High-Efficiency High-Voltage-Tolerant Buck Converter with Inductor Current Emulator for Battery-Powered IoT Devices," IEEE Transactions on Power Electronics, vol. 38, no. 9, pp. 10917-10932, Sep. 2023.
[32] H.-S. Lee, K. Eom, M. Park, S.-B. Ku, K. Lee, T. Kim, T. Kim, Y.-M. Shon, H. Park, and H.-M. Lee, "A Multi-channel Neural Recording System with Neural Spike Scan and Adaptive Electrode Selection for High-density Neural Interface," IEEE Transactions on Circuits and Systems I, vol. 70, no. 7, pp. 2844-2857, Jul. 2023.
[31] M. Um and H.-M. Lee, "A Fault-Tolerant Current-Starved Ring Oscillator with Signal-Flip Protection Delay Cells against Radiation Effects," IEEE Transactions on Circuits and Systems II, vol. 70, no. 3, pp. 880-884, Mar. 2023.
[30] M. Kim, H. Lee, J. Ahn, and H.-M. Lee, "A 13.56-MHz Wireless Power and Data Transfer System with Current-Modulated Energy-Reuse Back Telemetry and Energy-Adaptive Voltage Regulation," IEEE Journal of Solid-State Circuits, vol. 58, no. 2, pp. 400-410, Feb. 2023.
[29] H. Park, W. Jung, M. Kim, S. Kim, H. Lee, S. Kim, J. Lee, and H.-M. Lee, "A 0.3V-VIN, 0.015ps-FoM Fully Integrated Analog-Assisted Digital LDO with Dual-Negative Gate Control and Adaptive Transient Recovery Path," IEEE Transactions on Power Electronics, vol. 38, no. 1, pp. 85-89, Jan. 2023.
[28] H.-S. Lee, J. Ahn, M. Kang, and H.-M. Lee, "A Load-Insensitive Hybrid LSK Back Telemetry System with Slope-Based Demodulation for Inductively Powered Biomedical Devices," IEEE Transactions on Biomedical Circuits and Systems, vol. 16, no. 4, pp. 651-663, Aug. 2022.
[27] H.-S. Lee, K. Eom, M. Park, S.-B. Ku, K. Lee, and H.-M. Lee, "High-Density Neural Recording System Design," Biomedical Engineering Letters, vol. 12, no. 3, Aug. 2022.
[26] K.-D. Kim, S. Park, B. Lee, H.-M. Lee, and G.-H. Cho, "A 80x60 Microbolometer CMOS Thermal Imager Integrated With a Low-Noise 12-B DAC," IEEE Transactions on Industrial Electronics, vol. 69, no. 8, pp. 8604-8608, Aug. 2022.
[25] H.-S. Lee, J. Ahn, K. Eom, W. Jung, S.-J. Lee, Y.-W. Jeong, S.-U. Shin, and H.-M. Lee, "A Power-Efficient Resonant Current Mode Receiver with Wide Input Range over Breakdown Voltages Using Automated Maximum Efficiency Control," IEEE Transactions on Power Electronics, vol. 37, no. 7, pp. 8738-8750, Jul. 2022.
[24] D. Ro, M. Um, and H.-M. Lee, "A Soft-Error-Tolerant SAR ADC with Dual-Capacitor Sample-and-Hold Control for Sensor Systems," Sensors, vol. 21, no. 14, Jul. 2021.
[23] H. Yu, M. Cho, S. Lee, H.-M. Lee, and Y. Kim, "Multi Look-up Table FPGA Reverse Engineering with Bitstream Extraction and Multiple PIP/PLP Matching," Journal of Semiconductor Technology and Science, vol. 21, no. 1, Feb. 2021.
[22] W. Jung, S.-U. Shin, S.-W. Hong, S.-M. Yoo, T.-H. Kong, J.-H. Yang, S.-H. Kim, M. Choi, J. Shin, and H.-M. Lee, "Dual-Path Three-Level Buck Converter with Loop-Free Auto-Calibration for Flying Capacitor Self-Balancing," IEEE Transactions on Power Electronics, vol. 36, no. 1, pp. 51-55, Jan. 2021.
[21] J. Baek, H.-M. Lee, and S.-U. Shin, "Triple-Mode Switched-Inductor-Capacitor DC-DC Buck Converter with Reusable Flying Capacitor and Bang-Bang Zero-Current Detector for Wide Load Current Range," Electronics, vol. 9, no. 8, Aug. 2020.
[20] S.-U. Shin, S.-W. Hong, H.-M. Lee, and G.-H. Cho, "High Efficiency Hybrid Dual-Path Step-Up DC-DC Converter with Continuous Output Delivery Current for Low Output Ripple," IEEE Transactions on Power Electronics, vol. 35, no. 6, pp. 6025-6038, Jun. 2020.
[19] S.-U. Shin, M. Choi, S. Jung, H.-M. Lee, and G.-H. Cho, "A Time-Interleaved Resonant Voltage Mode Wireless Power Receiver with Delay-Based Tracking Loops for Implantable Medical Devices," IEEE Journal of Solid-State Circuits, vol. 55, no. 5, pp. 1374-1385, May 2020.
[18] J. Park, H.-M. Lee, S.-U. Shin, W. Choi, and S.-W. Hong, "A 0.46mm2 On-Chip Compensated Type-III Buck Converter Using an Inner Feedback Loop with a Seamless CCM/DCM Transition Technique," IEEE Transactions on Power Electronics, vol. 35, no. 5, pp. 4477-4482, May 2020.
[17] D. Ro, C. Min, M. Kang, I. J. Chang, and H.-M. Lee, "A Radiation-Hardened SAR ADC with Delay-Based Dual Feedback Flip-Flops for Sensor Readout Systems," Sensors, vol. 20, no. 1, Jan. 2020.
[16] K.-D. Kim, H.-M. Lee, S.-W. Hong, and G.-H. Cho, "A Non-Inverting Buck-Boost Converter with State-Based Current Control for Li-Ion Battery Management in Mobile Applications," IEEE Transactions on Industrial Electronics, vol. 66, no. 12, pp. 9623-9627, Dec. 2019.
[15] H.-M. Lee, Y.-J. Jeon, S.-W. Lee, B. Lee, and G.-H. Cho, "An Area and Power Efficient Interpolation Scheme Using Variable Current Control for 10-bit Data Drivers in Mobile Active-Matrix LCDs," IEEE Transactions on Consumer Electronics, vol. 65, no. 2, pp. 253-262, May 2019.
[14] K. Jeong, D. Ro, G. Lee, M. Kang, and H.-M. Lee, "A Radiation-Hardened Instrumentation Amplifier for Sensor Readout Integrated Circuits in Nuclear Fusion Applications," Electronics, vol. 7, no. 12, Dec. 2018.
[13] H. Yu, H. Lee, S. Lee, Y. Kim, and H.-M. Lee, "Recent Advances in FPGA Reverse Engineering," Electronics, vol. 7, no. 10, Oct. 2018.
[12] H.-M. Lee, B. Howell, W. M. Grill, and M. Ghovanloo, "Stimulation Efficiency with Decaying Exponential Waveforms in a Wirelessly-Powered Capacitive Discharging Stimulation System," IEEE Transactions on Biomedical Engineering, vol. 65, no. 5, pp. 1095-1106, May 2018.
[11] H.-M. Lee, C. S. Juvekar, J. Kwong, and A. P. Chandrakasan, "A Nonvolatile Flip-Flop-Enabled Cryptographic Wireless Authentication Tag with Per-Query Key Update and Power-Glitch Attack Countermeasures," IEEE Journal of Solid-State Circuits, vol. 52, no. 1, pp. 272-283, Jan. 2017.
[10] K.-Y. Kwon, H.-M. Lee, M. Ghovanloo, A. Weber, and W. Li, "Design, Fabrication, and Packaging of an Integrated, Wirelessly-Powered Optrode Array for Optogenetics Application," Frontiers in Systems Neuroscience, vol. 9, no. 69, May 2015.
[09] H.-M. Lee, K.-Y. Kwon, W. Li, B. Howell, W. M. Grill, and M. Ghovanloo, "A Power-Efficient Switched-Capacitor Stimulating System for Electrical/Optical Deep-Brain Stimulation," IEEE Journal of Solid-State Circuits, vol. 50, no. 1, pp. 360-374, Jan. 2015.
[08] H.-M. Lee and M. Ghovanloo, "A Power-Efficient Wireless Capacitor Charging System Through an Inductive Link," IEEE Transactions on Circuits and Systems II, vol. 60, no. 10, pp. 707-711, Oct. 2013.
[07] H.-M. Lee, H. Park, and M. Ghovanloo, "A Power-Efficient Wireless System with Adaptive Supply Control for Deep Brain Stimulation," IEEE Journal of Solid-State Circuits, vol. 48, no. 9, pp. 2203-2216, Sep. 2013.
[06] H.-M. Lee and M. Ghovanloo, "A High Frequency Active Voltage Doubler in Standard CMOS Using Offset-Controlled Comparators for Inductive Power Transmission," IEEE Transactions on Biomedical Circuits and Systems, vol. 7, no. 3, pp. 213-224, Jun. 2013.
[05] H. Park, M. Kiani, H.-M. Lee, J. Kim, J. Block, B. Gosselin, and M. Ghovanloo, "A Wireless Magnetoresistive Sensing System for an Intraoral Tongue-Computer Interface," IEEE Transactions on Biomedical Circuits and Systems, vol. 6, no. 6, pp. 571-585, Dec. 2012.
[04] H.-M. Lee and M. Ghovanloo, "An Adaptive Reconfigurable Active Voltage Doubler/Rectifier for Extended-Range Inductive Power Transmission," IEEE Transactions on Circuits and Systems II, vol. 59, no. 8, pp.481-485, Aug. 2012.
[03] H.-M. Lee and M. Ghovanloo, "An Integrated Power-Efficient Active Rectifier with Offset-Controlled High Speed Comparators for Inductively-Powered Applications," IEEE Transactions on Circuits and Systems I, vol. 58, no. 8, pp. 1749-1760, Aug. 2011.
[02] S. B. Lee, H.-M. Lee, M. Kiani, U.-M. Jow, and M. Ghovanloo, "An Inductively Powered Scalable 32-ch Wireless Neural Recording System-on-a-Chip with Power Scheduling for Neuroscience Applications," IEEE Transactions on Biomedical Circuits and Systems, vol. 4, no. 6, pp. 360-371, Dec. 2010.
[01] Y.-J. Jeon, H.-M. Lee, S.-W. Lee, G.-H. Cho, H.-R. Kim, Y.-K. Choi, and M. Lee, "A Piecewise Linear 10 bit DAC Architecture with Drain Current Modulation for Compact AMLCD Driver ICs," IEEE Journal of Solid-State Circuits, vol. 44, no. 12, pp.3659-3675, Dec. 2009.
Conference Papers (International)
[47] S.-B. Ku, J. Kim, K.-H. Lee, H.-S. Lee, K. Eom, J. Kang, H. Jung, C. Cha, and H.-M. Lee, "A Fully Integrated Microplastic Detection SoC with 0.1–3 GHz Bandwidth and 35 dB Dynamic Range for Narrow-Band Notch RF MEMS Sensor System," IEEE Radio Frequency Integrated Circuits Symposium (RFIC), Jun. 2024.
[46] M. Kang, M. Um, J. Won, J. Kang, S. Hong, N. Han, S. Kim, S. Kim, H.-M. Lee, "An Analog Neuromorphic On-Chip Training System with IGZO TFT-Based 6T1C 367-State Synaptic Memory Achieving 0.99-R2 Linearity and 104-Times Enhanced Retention Time," IEEE Custom Integrated Circuits Conference (CICC), Apr. 2024.
[45] H.-S. Lee, K. Eom, and H.-M. Lee, "A 90.8%-Efficiency SIMO Resonant Regulating Rectifier Generating 3 Outputs in a Half Cycle with Distributed Multi-Phase Control for Wirelessly-Powered Implantable Devices," IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2024.
[44] M. Kim, W. Jung, H. Park, J. Song, Y. Ahn, T. Nam, Y. Shin, Y.-J. Woo, and H.-M. Lee, "A 96.5% Peak Efficiency Duty-Independent DC-DC Step-Up Converter with Low Input-Level Voltage Stress and Mode-Adaptive Inductor Current Reduction," IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2024.
[43] J. Ahn, S. H. Choi, J. An, K.-D. Kim, and H.-M. Lee, "A Fully Nonlinear Compact 10b Source Driver with Low-Voltage Gamma Slope DAC and Data/Phase Dependent Current Modulation Achieving 2411µm²/Channel for Mobile OLED Displays," IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2024.
[42] J. An, S. H. Choi, J.-Y. Lee, S.-W. Kim, H.-M. Lee, and Y.-K. Choi, "Noise Immunity in Capacitive Sensing: Single-Ended AFE Design with Common-Current Subtraction for Mutual- and Self-Capacitance Sensing in 390pF Load," IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2024.
[41] S. H. Choi, J. Kim, J. Ahn, J. An, J. Kim, O. Kwon, K.-D. Kim, and H.-M. Lee, "An Area and Power Efficient Fully Nonlinear 10-bit Column Driver with Time-Shared Multi-Gamma-Slope DAC and Time-Interleaved Sampling Buffer for Mobile AMOLEDs," IEEE Asian Solid-State Circuits Conference (ASSCC), Nov. 2023.
[40] H.-S. Lee and H.-M. Lee, "A 92.7%-Efficiency 6.78-MHz Dual-Output Energy-Resuscitating Resonant Regulating Rectifier for Wirelessly Powered Systems," IEEE Asian Solid-State Circuits Conference (ASSCC), Nov. 2023.
[39] M. Um, M. Kang, H. Kwak, K. Noh, S. Kim, and H.-M. Lee, "An ECRAM-Based Analog Compute-in-Memory Neuromorphic System with High-Precision Current Readout for Deep Learning," IEEE Biomedical Circuits and Systems Conference (BioCAS), Oct. 2023.
[38] M. Cho, M. Kang, M. Um, H. Park, and H.-M. Lee, "CMOS Leaky Integrate-and-Fire Neurons with Local Dynamic Biasing and Inhibitory Self-Oscillation," IEEE Biomedical Circuits and Systems Conference (BioCAS), Oct. 2023.
[37] S.-B. Ku, K. Lee, H.-S. Lee, K. Eom, M. Park, J. Kim, C. Cha, and H.-M. Lee, "An RF MEMS Sensor Driver/Readout SoC with Resonant Frequency Shift and Closed-Loop Envelope Regulation for Microplastic Detection," IEEE European Solid-State Circuits Conference (ESSCIRC), Sep. 2023.
[36] J. Ahn, H.-S. Lee, K. Eom, W. Jung, and H.-M. Lee, "A 93.5%-Efficiency 13.56-MHz-Bandwidth Optimal On/Off Tracking Active Rectifier with Fully Digital Feedback-Based Delay Control for Adaptive Efficiency Compensation," IEEE Symposium on VLSI Technology and Circuits (VLSI), Jun. 2023.
[35] M. Park, K. Eom, H.-S. Lee, S.-B. Ku, and H.-M. Lee, "A 9V-Tolerant 71.4%-Efficiency Stacked-Switched-Capacitor Stimulation System with Level-Adaptive Switching Control and Rapid Stimulus-Synchronized Charge Balancing," IEEE Custom Integrated Circuits Conference (CICC), Apr. 2023.
[34] K. Eom, M. Park, H.-S. Lee, S.-B. Ku, N. Kim, S. Cha, Y. S. Goo, S. Kim, S.-W. Kim, and H.-M. Lee, "A Stimulus-Scattering-Free Pixel-Sharing Sub-Retinal Prosthesis SoC with 35.8dB Dynamic Range Time-Based Photodiode Sensing and Per-Pixel Dynamic Voltage Scaling," IEEE International Solid-State Circuits Conference (ISSCC), Feb. 2023.
[33] H. Park, W. Jung, M. Kim, and H.-M. Lee, "A Fast-Transient and Wide-Range Output Capacitor-Less NMOS LDO Regulator with Adaptive-Gain Nested Miller Compensation and Pre-Emphasis Inverse Biasing," IEEE Asian Solid-State Circuits Conference (ASSCC), Nov. 2022.
[32] S.-H. Choi, J.-Y. An, J.-Y. Lee, S.-W. Kim, H.-M. Lee, and Y.-K. Choi, "A Circuit Modeling Method of OLED On-Cell Touch Panels Including the Touch Objects for Full-Frame Touch Simulation," SID Eurodisplay Conference, Sep. 2022.
[31] S.-H. Choi, J.-Y. An, J.-Y. Lee, S.-W. Kim, H.-M. Lee, and Y.-K. Choi, "Implementation of Full-Panel Circuit Models for Interference Estimation Between Touch and Display Operation in On-Cell Touch AMOLED," Soceity for Information Display (SID) Symposium, May 2022.
[30] W. Jung, M. Kim, H. Park, S. Yoo, T.-H. Kong, J.-H. Yang, M. Choi, J. Shin, and H.-M. Lee, "A Hybrid Always-Dual-Path Recursive Step-Down Converter Using Adaptive Switching Level Control Achieving 95.4% Efficiency with 288mΩ Large-DCR Inductor," IEEE Custom Integrated Circuits Conference (CICC), Apr. 2022.
[29] K. Eom, H.-S. Lee, M. Park, S. M. Yang, J. C. Choe, S.-W. Hwang, Y.-W. Suh, and H.-M. Lee, "A 92%-Efficiency Inductor-Charging Switched-Capacitor Stimulation System with Level-Adaptive Duty Modulation and Offset Charge Balancing for Muscular Stimulation," IEEE Custom Integrated Circuits Conference (CICC), Apr. 2022.
[28] K. Lee, J. Kim, H.-M. Lee, and C. Cha, "Carbon Black based Resistive Strain Gauge Sensor for Penile Measurement," IEEE International Conference on Industrial Engineering and Engineering Management (IEEM), Dec. 2021.
[27] H.-S. Lee, M. Kim, J. Ahn, and H.-M. Lee, "A Load-Insensitive Hybrid Back Telemetry System for Wirelessly-Powered Implantable Devices," IEEE Biomedical Circuits and Systems Conference (BioCAS), Oct. 2021.
[26] C.-H. Kim and H.-M. Lee, "A 2.45-GHz RF Energy Harvester with On-Chip 8-VCR SC Booster for IoT Devices," IEEE International Symposium on Circuits and Systems (ISCAS), May 2021.
[25] M. Kim, H. Lee, and H.-M. Lee, "An Efficient Wireless Power and Data Transfer System with Current-Modulated Energy-Reuse Back Telemetry and Energy-Adaptive Dual-Input Voltage Regulation," IEEE Custom Integrated Circuits Conference (CICC), Apr. 2021.
[24] H. Lee, H. Park, and H.-M. Lee, "A Multi-Channel Neural Recording System with Adaptive Electrode Selection for High-Density Neural Interface," IEEE Engineering in Medicine and Biology Conference (EMBC), Jul. 2020.
[23] H.-M. Lee, "Energy-Efficient Wireless Neural Stimulation Systems for Implantable Devices," IEEE Engineering in Medicine and Biology Conference (EMBC), Jul. 2020.
[22] H.-M. Lee, "Implantable Biomedical Devices with IC Solutions," Asia-Pacific Workshop on Fundamentals and Applications of Advanced Semiconductor Devices (AWAD), Jul. 2019 (invited).
[21] K.-D. Kim, S. Park, K.-S. Yoon, G.-G. Kang, H.-K. Han, J.-S. Choi, M.-W. Ko, J.-H. Cho, S. Lim, H.-M. Lee, H.-S. Kim, K. Lee, and G.-H. Cho, "A 100mK-NETD 100ms-Startup-Time 80×60 Micro-Bolometer CMOS Thermal Imager Integrated with a 0.234mm2 1.89μVrms Noise 12b Biasing DAC," IEEE International Solid-State Circuits Conference (ISSCC), pp. 192-193, Feb. 2018.
[20] S.-U. Shin, Y. Huh, Y. Ju, S. Choi, C. Shin, Y.-J. Woo, M. Choi, S.-H. Park, Y.-H. Sohn, M.-W. Ko, Y. Jo, H. Han, H.-M. Lee, S.-W. Hong, W. Qu, and G.-H. Cho, "A 95.2% Efficiency Dual-Path DC-DC Step-Up Converter with Continuous Output Current Delivery and Low Voltage Ripple," IEEE International Solid-State Circuits Conference (ISSCC), pp. 430-431, Feb. 2018.
[19] M.-W. Ko, K.-D. Kim, Y.-J. Woo, S.-U. Shin, H.-K. Han, Y. Huh, G.-G. Kang, J.-H. Cho, S. Lim, S.-H. Park, H.-M. Lee, and G.-H. Cho, "A 97% High-Efficiency 6μs Fast-Recovery-Time Buck-Based Step-Up/Down Converter with Embedded 1/2 and 3/2 Charge-Pumps for Li-ion Battery Management," IEEE International Solid-State Circuits Conference (ISSCC), pp. 428-429, Feb. 2018.
[18] C. S. Juvekar, J. Kwong, H.-M. Lee, and A. P. Chandrakasan, "A Nonvolatile Flip-Flop-Enabled Cryptographic Wireless Authentication Tag with Per-Query Key Update and Power-Glitch Attack Countermeasures," Asia and South Pacific Design Automation Conference (ASP-DAC), pp. 279-280, Jan. 2018.
[17] S. Kim, T. Gokmen, H.-M. Lee, and W. E. Haensch, "Analog CMOS-Based Resistive Processing Unit for Deep Neural Network Training," IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), Aug. 2017.
[16] C. S. Juvekar, H.-M. Lee, J. Kwong, and A. P. Chandrakasan, "A Keccak-Based Wireless Authentication Tag with Per-Query Key Update and Power-Glitch Attack Countermeasures," IEEE International Solid-State Circuits Conference (ISSCC), pp. 290-291, Feb. 2016.
[15] H.-M. Lee, M. Kiani, and M. Ghovanloo, "Advanced Wireless Power and Data Transfer Techniques for Implantable Medical Devices," IEEE Custom Integrated Circuits Conference (CICC), Sep. 2015.
[14] H.-M. Lee, K.-Y. Kwon, W. Li, and M. Ghovanloo, "A Wireless Implantable Switched-Capacitor Based Optogenetic Stimulating System," IEEE Engineering in Medicine and Biology Conference (EMBC), pp. 878-881, Aug. 2014.
[13] H.-M. Lee, K.-Y. Kwon, W. Li, and M. Ghovanloo, "A Power-Efficient Switched-Capacitor Stimulating System for Electrical/Optical Deep-Brain Stimulation," IEEE International Solid-State Circuits Conference (ISSCC), pp. 414-415, Feb. 2014.
[12] K.-Y. Kwon, H.-M. Lee, M. Ghovanloo, A. Weber, and W. Li, "A Wireless Slanted Optrode Array with Integrated Micro LEDs for Optogenetics," IEEE International Conference on Micro Electro Mechanical Systems (MEMS), Jan. 2014.
[11] H.-M. Lee and M. Ghovanloo, "An Adaptive Reconfigurable Active Voltage Doubler/Rectifier for Extended-Range Inductive Power Transmission," IEEE International Solid-State Circuits Conference (ISSCC), pp. 286-287, Feb. 2012.
[10] H. Park, B. Gosselin, M. Kiani, H.-M. Lee, J. Kim, X. Huo, and M. Ghovanloo, "A Wireless Magnetoresistive Sensing System for an Intra-Oral Tongue-Computer Interface," IEEE International Solid-State Circuits Conference (ISSCC), pp. 124-125, Feb. 2012.
[09] H.-M. Lee and M. Ghovanloo, "Fully Integrated Power-Efficient AC-to-DC Converter Design in Inductively-Powered Biomedical Applications," IEEE Custom Integrated Circuits Conference (CICC), Sep. 2011.
[08] S. B. Lee, H.-M. Lee, M. Kiani, U.-M. Jow, and M. Ghovanloo, "An Inductively Powered Scalable 32-ch Wireless Neural Recording System-on-a-Chip with Power Scheduling for Neuroscience Applications," IEEE International Solid-State Circuits Conference (ISSCC), pp. 120-121, Feb. 2010.
[07] H.-M. Lee, Y.-J. Jeon, S.-W. Lee, G.-H. Cho, H.-R. Kim, Y.-K. Choi, and M. Lee, "A 10b Column Driver with Variable-Current-Control Interpolation for Mobile Active-Matrix LCDs," IEEE International Solid-State Circuits Conference (ISSCC), pp. 266-267, Feb. 2009.
[06] Y.-J. Jeon, H.-M. Lee, S.-W. Lee, G.-H. Cho, H.-R. Kim, Y.-K. Choi, and M. Lee, "A Piecewise Linear 10 bit DAC Architecture with Drain Current Modulation for Compact AMLCD Driver ICs," IEEE International Solid-State Circuits Conference (ISSCC), pp. 264-265, Feb. 2009.
[05] J.-Y. Jeon, Y.-J. Jeon, Y.-S. Son, K.-C. Lee, H.-M. Lee, S.-C. Jung, K.-H. Lee, and G.-H. Cho, "Direct-Type Fast Feedback Current Driver for Medium to Large Size AMOLED Displays," IEEE International Solid-State Circuits Conference (ISSCC), pp.174-175, Feb. 2008.
[04] H.-M. Lee, Y.-S. Son, Y.-J. Jeon, J.-Y. Jeon, S.-C. Jung, and G.-H. Cho, "Area and Power Efficient 10-Bit Column Driver with Interpolating DAC and Push-Pull Amplifier for AMLCDs," Society for Information Display Symposium (SID), pp.889-891, May 2008.
[03] J.-Y. Jeon, Y.-S. Son, Y.-J. Jeon, G.-H. Lee, H.-M. Lee, S.-C. Jung, and G.-H. Cho, "A Multi-Chip Reference Current Generating Circuit for Current-Mode Column Driver ICs," Society for Information Display Symposium (SID), pp.350-352, May 2007.
[02] Y.-J. Jeon, Y.-S. Son, J.-Y. Jeon, G.-H. Lee, H.-M. Lee, S.-C. Jung, and G.-H. Cho, "A Cascaded-Dividing Current DAC with Fine Pitch for High-Resolution AMOLED Display Drivers," Society for Information Display Symposium (SID), pp.1644-1646, May 2007.
[01] H.-M. Lee, Y.-S. Son, Y.-J. Jeon, J.-Y. Jeon, G.-H. Lee, S.-C. Jung, and G.-H. Cho, "A 10 Bit Gray Scale Digital-to-Analog Converter with an Interpolating Buffer Amplifier for AMLCD Column Drivers," Society for Information Display Symposium (SID), pp.346-349, May 2007.
Journal/Conference Papers (Other)
[16] M. Cho, D. Lee, S. Lee, Y. Kim, and H.-M. Lee, "Automated Bitstream Analysis Method for FPGA Reverse Engineering," Korean Conference on Semiconductors (KCS), Jan. 2024.
[15] S. Lee, K. Eom, and H.-M. Lee, "Adaptive Power Management IC for Sensor Readout Systems," IDEC Journal of Integrated Circuits and Systems, vol. 9, no. 1, Jan. 2023.
[14] J. Song, M. Kim, and H.-M. Lee, "A Three-Level Boost Converter With Peak Current Mode Control for Flying Capacitor Self-Balancing," International SoC Design Conference (ISOCC), Oct. 2022.
[13] M. Cho, D. Lee, S. Lee, Y. Kim, and H.-M. Lee, "Automated Reverse Engineering Tools for FPGA Bitstream Extraction and Logic Estimation," International SoC Design Conference (ISOCC), Oct. 2022.
[12] H. Jo, M. kang, M. Um, and H.-M. Lee, "Analog Read/Update Peripheral Circuits for Neuromorphic Systems," IEEE/IEIE International Conference on Electronics, Information, and Communication (ICEIC), Feb. 2022.
[11] W. Jung, Y. Lee, S. Yoo, T.-H. Kong, J.-H. Yang, and H.-M. Lee, "A High-Efficiency Li-ion Battery Switching Charger with Dual-Path Three-Level Buck Converter," IDEC Journal of Integrated Circuits and Systems, vol. 7, no. 4, Oct. 2021.
[10] M. Um, D. Ro, M. Kang, I. J. Chang, and H.-M. Lee, "Recent Advances in Radiation-Hardened Sensor Readout Integrated Circuits," Journal of Semiconductor Engineering, vol. 1, no. 3, Dec. 2020.
[09] M. Um, D. Ro, I. J. Chang, and H.-M. Lee, "A Radiation-Hardened Readout Integrated Circuits for Sensor Systems," IEEE/IEIE International Conference on Consumer Electronics Asia (ICCE-Asia), Nov. 2020.
[08] Y. Lee and H.-M. Lee, "A Wide Input Voltage Range Buck Converter Using Adaptive Ripple Compensation," IEIE Summer Conference, Aug. 2020.
[07] C.-H. Kim and H.-M. Lee, "A WLAN 2.45GHz RF Energy Harvester with DC-DC Converter for Wireless Sensor Network", Korean Conference on Semiconductors (KCS), Feb. 2020.
[06] M.-J. Kim and H.-M. Lee, "Low-Power Bidirectional Wireless Data Telemetry for Inductively-Powered Devices," Korean Conference on Semiconductors (KCS), Feb. 2020.
[05] H. Yu, H.-M. Lee, Y. Shin, and Y. Kim, "FPGA Reverse Engineering in Vivado Design Suite Based on X-ray Project," International SoC Design Conference (ISOCC), Oct. 2019.
[04] S. Lee, H. Yu, M. Cho, Y. Kim, and H.-M. Lee, "FPGA Security and Reverse Engineering," IEIE Magazine, vol. 46, no. 7, Jul. 2019.
[03] S. Lee, H. Yu, M. Cho, Y. Kim, and H.-M. Lee, "FPGA Identification and Reverse Engineering with Analysis of Bitstream Structures," IEIE Summer Conference, Jun. 2019.
[02] S. Lee, H. Lee, H. Yu, Y. Kim, and H.-M. Lee, "Experimental Verification and Analysis of FPGA Reverse Engineering Tools," IEIE Fall Conference, Nov. 2018.
[01] D. Ro and H.-M. Lee, "A Radiation-Hardened SAR-Based Analog-to-Digital Converter IC for Sensor Readout Systems," KPS Fall Conference, Oct. 2018.
Patents (International)
[42] H.-M. Lee, J. Ahn, S. H. Choi, J. An, "Display data driver", PCT patent, PCT/KR2024/003906 filed on Mar. 28, 2024.
[41] H.-M. Lee, S.-B. Ku, "Micro concentration monitoring apparatus", US patent, US18472371 filed on Sep. 22, 2023.
[40] H.-M. Lee, H. Park, W. Jung, "LDO regulator capable of being operated at low voltage and semiconductor device including the same", CN patent, 202310785392.6 filed on Jun. 29, 2023.
[39] H.-M. Lee, H. Park, W. Jung, "LDO regulator capable of being operated at low voltage and semiconductor device including the same", EU patent, 23182484.8 filed on Jun. 29, 2023.
[38] H.-M. Lee, H. Park, W. Jung, "LDO regulator capable of being operated at low voltage and semiconductor device including the same", US patent, US18342415 filed on Jun. 27, 2023.
[37] H.-M. Lee, J. Ahn, "Digital feedback based adaptive delay time control method and apparatus for high efficiency active rectifier", US patent, US18190509 filed on Mar. 27, 2023.
[36] H.-M. Lee, S.-W. Kim, K. Eom, "Sub-retinal prosthesis using multi-photodiode sensing technology", US patent, US18078471 filed on Dec. 9, 2022.
[35] H.-M. Lee, M. Kim, W. Jung, S. Yoo, T. Kong, J. Yang, "DC-DC converter and power device including the same", US patent, US17993603 filed on Nov. 23, 2022.
[34] H.-M. Lee, H. Park, "Capacitor-less low dropout regulator using dual feedback loop structure", US patent, US17885848 filed on Aug. 11, 2022.
[33] H.-M. Lee, M. Kang, M. Um, "Error compensation circuit for analog capacitor memory circuits", US patent, US17851696 filed on Jun. 28, 2022.
[32] H.-M. Lee, W. Jung, Y. Lee, S. Yoo, T. Kong, J. Yang, "DC-DC buck converter and operating method thereof", US patent, US17828829 filed on May 31, 2022.
[31] H.-M. Lee, K. Eom, H.-S. Lee, M. Park, "Switched capacitor-based electrical stimulation device and method", US patent, US17825605 filed on May 26, 2022.
[30] H.-M. Lee, H.-S. Lee, "Back data transmission circuit and method that is robust to the load changes", US patent, US17825586 filed on May 26, 2022, and US11870277B2 issued on Jan. 9, 2024.
[29] H.-M. Lee, M. Kang, M. Um, "Neuromorphic circuit capable of setting negative weights and back propagation", US patent, US17825574 filed on May 26, 2022.
[28] H.-M. Lee, K.-D. Kim, S. Choi, J. Kim, Y. Hwang, J.-C. Goh, O. Kwon, B. You, "Data driver and display device including the same", CN patent, 202111204618.6 filed on Oct. 15, 2021.
[27] H.-M. Lee, K.-D. Kim, S. Choi, J. Kim, Y. Hwang, J.-C. Goh, O. Kwon, B. You, "Data driver with sample/hold circuit and display device including the same", US patent, US17471997 filed on Sep. 10, 2021, and US11705046B2 issued on Jul. 18, 2023.
[26] H.-M. Lee, Y. Lee, W. Jung, S. Yoo, T. Kong, S. Kim, J. Yang, "DC-to-DC converter and integrated circuit including the same", US patent, US17389806 filed on Jul. 30, 2021, and US11804778B2 issued on Oct. 31, 2023.
[25] H.-M. Lee, J. Kim, S. Choi, Y. Hwang, J.-C. Goh, O. Kwon, B. You, "Data driver, display apparatus including the same and method of driving display panel using the same", CN patent, 202110467251.0 filed on Apr. 28, 2021.
[24] H.-M. Lee, J. Kim, S. Choi, Y. Hwang, J.-C. Goh, O. Kwon, B. You, "Data driver, display apparatus including the same and method of driving display panel using the same", EU patent, 21170575.4 filed on Apr. 27, 2021.
[23] H.-M. Lee, J. Kim, S. Choi, Y. Hwang, J.-C. Goh, O. Kwon, B. You, "Data driver, display apparatus including the same and method of driving display panel using the same", US patent, US17241746 filed on Apr. 27, 2021, and US11443672B2 issued on Sep. 13, 2022.
[22] H.-M. Lee, K.-D. Kim, S. Choi, J. Kim, Y. Hwang, J.-C. Goh, O. Kwon, B. You, "Data driver and display device including a data driver", CN patent, 202110458114.0 filed on Apr. 27, 2021.
[21] H.-M. Lee, K.-D. Kim, S. Choi, J. Kim, Y. Hwang, J.-C. Goh, O. Kwon, B. You, "Data driver and display device including a data driver", EU patent, 21168507.8 filed on Apr. 15, 2021.
[20] H.-M. Lee, K.-D. Kim, S. Choi, J. Kim, Y. Hwang, J.-C. Goh, O. Kwon, B. You, "Data driver and display device including a data driver", US patent, US17232061 filed on Apr. 15, 2021, and US11200853B2 issued on Dec. 14, 2021.
[19] T. Gokmen, S. Kim, H.-M. Lee, W. Lee, P. M. Solomon, "Circuit methodology for highly linear and symmetric resistive processing unit", US patent, US17137615 filed on Dec. 30, 2020, and US11842770B2 issued on Dec. 12, 2023.
[18] H.-M. Lee, M. Kim, "Device and method for low-power bidirectional wireless data telemetry", US patent, US17006991 filed on Aug. 31, 2020, and US11342963B2 issued on May 24, 2022.
[17] H.-M. Lee, W. Jung, S.-U. Shin, S. Yoo, T. Kong, J. Yang, S. Kim, "Power switching circuit, a DC-DC converter including the same and a voltage conversion method", EU patent, 20157701.2 filed on Feb. 17, 2020.
[16] H.-M. Lee, W. Jung, S.-U. Shin, S. Yoo, T. Kong, J. Yang, S. Kim, "Power switching circuit, a DC-DC converter including the same and a voltage conversion method", US patent, US16788783 filed on Feb. 12, 2020, and US11196344B2 issued on Dec. 7, 2021.
[15] T. Gokmen, S. Kim, H.-M. Lee, W. Lee, P. M. Solomon, "Circuit methodology for highly linear and symmetric resistive processing unit", US patent, US16367497 filed on Mar. 28, 2019, and US10950304B2 issued on Mar 16, 2021.
[14] H.-M. Lee, D. Ro, K.-S. Jeong, "Radiation-hardened analog-to-digital converter circuit, digital signal calibration method thereof, and recording medium for performing the method," US patent, US16363316 filed on Mar. 25, 2019, and US10666280B2 issued on May 26, 2020.
[13] S. Kim, H.-M. Lee, T. Gokmen, S.-J. Han, "In-cell differential read-out circuitry for reading signed weight values in resistive processing unit architecture," US patent, US16353111 filed on Mar. 14, 2019, and US10468098B2 issued on Nov. 5, 2019.
[12] S. Kim, H.-M. Lee, T. Gokmen, S.-J. Han, "In-cell differential read-out circuitry for reading signed weight values in resistive processing unit architecture," US patent, US16352230 filed on Mar. 13, 2019, and US10453527B1 issued on Oct. 22, 2019.
[11] S. Kim, T. Gokmen, H.-M. Lee, W. Haensch, "Circuit methodology for differential weight reading in resistive processing unit devices," US patent, US16241606 filed on Jan. 7, 2019, and US10726895B1 issued on Jul. 28, 2020.
[10] S. Kim, H.-M. Lee, T. Gokmen, S.-J. Han, "In-cell differential read-out circuitry for reading signed weight values in resistive processing unit architecture," US patent, US15941558 filed on Mar. 30, 2018, and US10340002B1 issued on Jul. 2, 2019.
[09] T. Gokmen, S. Kim, H.-M. Lee, W. Lee, P. M. Solomon, "Circuit methodology for highly linear and symmetric resistive processing unit", US patent, US15831059 filed on Dec. 4, 2017, and US10269425B2 issued on Apr. 23, 2019.
[08] H.-M. Lee, J. Proesel, M. Meghelli, "Neural spike scanning for high-density implantable neural recording systems", US patent, US15695408 filed on Sep. 5, 2017, and and US10694964B2 issued on Jun. 30, 2020 (+ filed in JP, DE, WO, CN, GB).
[07] T. Gokmen, S. Kim, H.-M. Lee, W. Lee, P. M. Solomon, "Circuit methodology for highly linear and symmetric resistive processing unit", US patent, US15335171 filed on Oct. 26, 2016, and US9852790B1 issued on Dec. 26, 2017.
[06] J. U. Knickerbocker, H.-M. Lee, K.-W. Lee, "Wearable blood pressure monitoring system", US patent, US15272663 filed on Sep. 22, 2016, and US10448830B2 issued on Oct. 22, 2019.
[05] J. U. Knickerbocker, H.-M. Lee, K.-W. Lee, "Wearable blood pressure monitoring system", US patent, US15269040 filed on Sep. 19, 2016, and US10531797B2 issued on Jan. 14, 2020.
[04] H.-R. Kim, Y.-J. Jeon, G.-H. Cho, S.-W. Lee, H.-M. Lee, Y.-K. Choi, "Digital-to-analog converter, source driving circuit and display device having the same", US patent, US12639117 filed on Dec. 16, 2009, and US8462145B2 issued on Jun. 11, 2013.
[03] G.-H. Cho, Y.-K. Choi, H.-R. Kim, Y.-J. Jeon, H.-M. Lee, S.-W. Lee, "Digital-to-analog conversion circuit and column driver including the same", US patent, US12630978 filed on Dec. 4, 2009, and US7948418B2 issued on May 24, 2011.
[02] H.-M. Lee, G.-H. Cho, Y.-S. Son, Y.-J. Jeon, J. Y. Jeon, S.-C. Jung, "Driving apparatus for display", US patent, US11930850 filed on Oct. 31, 2007, and US7764212B2 issued on Jul. 27, 2010.
[01] G.-H. Cho, H.-M. Lee, Y.-S. Son, Y.-J. Jeon, J. Y. Jeon, S.-C. Jung, "Driving apparatus for display", US patent, US11930888 filed on Oct. 31, 2007.
Patents (Domestic)
[39] 이형민, 이현수, "포락선 검출기가 필요 없는 정방향 데이터 수신 장치", 출원번호 10-2024-0052317, 출원일 2024.04.18.
[38] 이형민, 이현수, "하이브리드 비교기 회로 장치", 출원번호 10-2024-0037826, 출원일 2024.03.19.
[37] 이형민, 이현수, "단일-입력 다중-출력 공진 조정 정류기", 출원번호 10-2024-0032569, 출원일 2024.03.07.
[36] 이형민, 이현수, "공진 조정 정류기", 출원번호 10-2023-0137743, 출원일 2023.10.16.
[35] 이형민, 구승범, "RF MEMS 센서 드라이버 및 센서 판독 시스템", 출원번호 10-2023-0101257, 출원일 2023.08.02.
[34] 이형민, 안재웅, 최승훈, 안준열, "디스플레이 데이터 드라이버", 출원번호 10-2023-0042173, 출원일 2023.03.30.
[33] 이형민, 김영민, 조만희, 이동찬, 이상현, "역공학을 사용하여 FPGA를 분석하는 장치 및 그의 동작 방법", 출원번호 10-2023-0018130, 출원일 2023.02.10.
[32] 이형민, 박민주, "저전압 소자를 이용한 고전압 내압형 스택 스위치드 커패시터 기반 전기 자극기", 출원번호 10-2023-0013375, 출원일 2023.02.01.
[31] 이형민, 구승범, "미세 입자 농도 모니터링 장치", 출원번호 10-2022-0144107, 출원일 2022.11.02.
[30] 이형민, 박현준, 정우중, "저전압 동작이 가능한 LDO 레귤레이터 및 이를 포함하는 반도체 장치", 출원번호 10-2022-0100499, 출원일 2022.08.11.
[29] 이형민, 안지산, "AC-DC 정류회로의 효율 개선을 위한 디지털 피드백 기반 적응적 딜레이 조절 방법 및 장치", 출원번호 10-2022-0051783, 출원일 2022.04.27.
[28] 이형민, 김민수, 정우중, 유성민, 공태황, 양준혁, "DC-DC 컨버터 및 이를 포함하는 전원 장치", 출원번호 10-2022-0020801, 출원일 2022.02.17.
[27] 이형민, 김성우, 엄경호, "멀티-광다이오드 감지 기술을 이용한 서브형 인공망막장치", 출원번호 10-2021-0178354, 출원일 2021.12.14.
[26] 이형민, 서영우, 황석원, 엄경호, 이한솔, 박민주, 양승민, 최종찬, "마비사시 치료를 위한 신경 자극 장치 및 전류 조절 방법", 출원번호 10-2021-0135946, 출원일 2021.10.13, 등록번호 10-2557813, 등록일 2023.07.17.
[25] 이형민, 박현준, "이중 피드백 루프 구조를 이용한 캡리스 저전압 강하 레귤레이터", 출원번호 10-2021-0124327, 출원일 2021.09.16, 등록번호 10-2533075, 등록일 2023.05.11.
[24] 이형민, 강민일, 엄민성, "아날로그 캐패시터 메모리 회로의 오차 보상 회로", 출원번호 10-2021-0103839, 출원일 2021.08.06.
[23] 이형민, 이현수, "부하 변화에 견고한 백 데이터 전송 회로 및 방법", 출원번호 10-2021-0089783, 출원일 2021.07.08, 등록번호 10-2492319, 등록일 2023.01.19.
[22] 이형민, 엄경호, 이한솔, 박민주, "스위치드 커패시터 기반 전기 자극 장치 및 방법", 출원번호 10-2021-0088377, 출원일 2021.07.06, 등록번호 10-2557821, 등록일 2023.07.17.
[21] 이형민, 정우중, 김민수, "커패시터를 이용한 SIMO 직류-직류 컨버터 및 이의 제어방법", 출원번호 10-2021-0088362, 출원일 2021.07.06, 등록번호 10-2574144, 등록일 2023.08.30.
[20] 이형민, 강민일, 엄민성, "역전파와 음수 가중치 설정이 가능한 뉴로모픽 회로", 출원번호 10-2021-0088327, 출원일 2021.07.06, 등록번호 10-2574156, 등록일 2023.08.30.
[19] 이형민, 정우중, 이윤호, 유성민, 공태황, 양준혁, "DC-DC 벅 컨버터 및 이의 동작 방법", 출원번호 10-2021-0070890, 출원일 2021.06.01.
[18] 이형민, 이윤호, 정우중, 유성민, 공태황, 양준혁, 김상호, "DC-DC 컨버터 및 이를 포함하는 집적 회로", 출원번호 10-2020-0138595, 출원일 2020.10.23.
[17] 이형민, 김기덕, 최승훈, 김정민, 황영수, 고준철, 권오조, 유봉현, "데이터 드라이버 및 이를 포함하는 표시 장치", 출원번호 10-2020-0135436, 출원일 2020.10.19.
[16] 이형민, 김기훈, 김정민, 이상일, "발바닥 전기자극장치 및 발바닥 전기자극방법", 출원번호 10-2020-0116768, 출원일 2020.09.11, 등록번호 10-2430159, 등록일 2022.08.03.
[15] 이형민, 김영민, 조만희, 유호영, 김현주, 이상일, 엄민성, "역공학 방법", 출원번호 10-2020-0063832, 출원일 2020.05.27, 등록번호 10-2290427, 등록일 2021.08.10.
[14] 이형민, 김정민, 최승훈, 황영수, 고준철, 권오조, 유봉현, "데이터 구동부, 이를 포함하는 표시 장치 및 이를 이용한 표시 패널의 구동 방법", 출원번호 10-2020-0051673, 출원일 2020.04.28.
[13] 이형민, 김기덕, 최승훈, 김정민, 황영수, 고준철, 권오조, 유봉현, "데이터 드라이버 및 데이터 드라이버를 포함하는 표시 장치", 출원번호 10-2020-0051555, 출원일 2020.04.28.
[12] 이형민, 엄민성, 노덕훈, "외부 간섭에 견고한 디지털 로직 회로 및 이를 포함하는 장치", 출원번호 10-2019-0152648, 출원일 2019.11.25, 등록번호 10-2116486, 등록일 2020.05.22.
[11] 이형민, 김민재, "저전력 양방향 무선 데이터 텔레메트리 장치 및 방법", 출원번호 10-2019-0125611, 출원일 2019.10.10, 등록번호 10-2206796, 등록일 2021.01.19.
[10] 이형민, 정우중, 신세운, 유성민, 공태황, 양준혁, 김상호, "파워 스위칭 회로, 이를 포함하는 DC-DC 컨버터 및 전압 전환 방법", 출원번호 10-2019-0068840, 출원일 2019.06.11.
[09] 이형민, 김영민, 이한솔, 유호영, 이상일, 김희동, "FPGA 역공학 장치 및 방법", 출원번호 10-2019-0032385, 출원일 2019.03.21, 등록번호 10-2172338, 등록일 2020.10.26.
[08] 이형민, 노덕훈, 정경수, "내방사선 아날로그-디지털 변환 회로 및 디지털 신호 보상 방법, 상기 방법을 수행하기 위한 기록 매체", 출원번호 10-2018-0042945, 출원일 2018.04.12, 등록번호 10-1886717, 등록일 2018.08.02.
[07] 이형민, "다채널 이식형 신경 신호 측정 시스템을 위한 신경 신호 검색 및 측정 장치 및 그 방법", 출원번호 10-2017-0137638, 출원일 2017.10.23, 등록번호 10-1970692, 등록일 2019.04.15.
[06] 조규형, 최윤경, 김형래, 전용준, 이형민, 이성우, "디지털-아날로그 변환 회로 및 이를 포함하는 컬럼 드라이버", 등록번호 10-1640448, 등록일 2016.07.12.
[05] 김형래, 전용준, 조규형, 이성우, 이형민, 최윤경, "디지털-아날로그 변환기, 이를 포함하는 소스 구동회로, 및 소스 구동회로를 포함하는 표시 장치", 등록번호 10-1532268, 등록일 2015.06.23.
[04] 이형민, 조규형, 손영석, 전용준, 전진용, 정승철, "디스플레이 구동 장치", 등록번호 10-0892250, 등록일 2009.04.01.
[03] 조규형, 이형민, 손영석, 전용준, 전진용, 정승철, "디스플레이 구동 장치", 등록번호 10-0885162, 등록일 2009.02.17.
[02] 조규형, 이형민, 손영석, 전용준, 전진용, 정승철, "디스플레이 구동 장치", 등록번호 10-0885161, 등록일 2009.02.17.
[01] 조규형, 이형민, 손영석, 전용준, 전진용, 정승철, "디스플레이 구동 장치", 등록번호 10-0819427, 등록일 2008.03.28.