An Improved Channel Estimation Method for Cell-Free Uplink Systems With Scalar Quantizers. - Bumjun Kim; Daesung Yu; Seok-Hwan Park (ICTC, 2020)

7.2 A 48 ×4013.5 mm Depth Resolution Flash LiDAR Sensor with In-Pixel Zoom Histogramming Time-to-Digital Converter. - Bumjun Kim; Seonghyeok Park; Jung-Hoon Chun; Jaehyuk Choi 001; Seong-Jin Kim (ISSCC, 2021)

An 80×60 Flash LiDAR Sensor with In-Pixel Histogramming TDC Based on Quaternary Search and Time-Gated Δ-Intensity Phase Detection for 45m Detectable Range and Background Light Cancellation. - Seonghyeok Park; Bumjun Kim; Junhee Cho; Jung-Hoon Chun; Jaehyuk Choi 001; Seong-Jin Kim (ISSCC, 2022)

A 100×80 CMOS Flash LiDAR Sensor with 0.0011mm2 In-Pixel Histogramming TDC Based on Analog Counter and Self-Calibrated Single-Slope ADC. - Su-Hyun Han 001; Bumjun Kim; Seonghyeok Park; Yongjae Park; Jung-Hoon Chun; Jaehyuk Choi 001; Seong-Jin Kim (VLSI Technology and Circuits, 2022)

An 80 × 60 Flash LiDAR Sensor With In-Pixel Delta-Intensity Quaternary Search Histogramming TDC. - Seonghyeok Park; Bumjun Kim; Su-Hyun Han 001; Junhee Cho; Jung-Hoon Chun; Jaehyuk Choi 001; Seong-Jin Kim (IEEE J. Solid State Circuits, 2022)

Small Language Models are Equation Reasoners. - Bumjun Kim; Kunha Lee; Juyeon Kim; Sangam Lee (CoRR, 2024)

A CMOS Flash LiDAR Sensor With In-Pixel Zoom Histogramming Time-to-Digital Converters. - Bumjun Kim; Seonghyeok Park; Su-Hyun Han 001; Jung-Hoon Chun; Jaehyuk Choi 001; Seong-Jin Kim (IEEE J. Solid State Circuits, 2025)

Communication-Efficient Wireless Federated Fine-Tuning for Large-Scale AI Models. - Bumjun Kim; Wan Choi (CoRR, 2025)

A 100 × 80 Flash LiDAR Sensor With In-Pixel Zoom-Histogramming TDC and Self-Referenced Single-Slope ADC Based on Analog Counters. - Su-Hyun Han 001; Seonghyeok Park; Bumjun Kim; Jung-Hoon Chun; Jaehyuk Choi 001; Seong-Jin Kim (IEEE J. Solid State Circuits, 2025)