Location History:
- Suwon-si, KR (2021 - 2022)
- Seoul, KR (2023)
Company Filing History:
Years Active: 2021-2025
Title: Innovations of Hongmin Choi
Introduction
Hongmin Choi is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of electronic devices, holding a total of 7 patents. His work primarily focuses on enhancing the performance of power amplifiers and wireless communication technologies.
Latest Patents
One of his latest patents is the "ACLR adjustable electronic device and operation method therefor." This invention includes a predistorter that modifies an input signal based on a predistortion coefficient to generate a predistortion signal. A power amplifier then amplifies this signal to produce an output signal. An error correction unit updates the predistortion coefficient to minimize the Normalized Mean Square Error (NMSE) between the input and output signals. Additionally, an ACLR adjustment unit calculates the Adjacent Channel Leakage Ratio (ACLR) from the output signal and updates the predistortion coefficient to minimize a defined cost function based on the ACLR.
Another notable patent is the "Device and method for compensating for nonlinearity of power amplifier." This device is designed for wireless communication and includes a pre-distortion circuit that generates a pre-distorted input signal. The power amplifier amplifies the RF signal based on this pre-distorted input. A parameter obtaining circuit gathers second memory polynomial modeling information to create a parameter set using an indirect learning structure.
Career Highlights
Hongmin Choi is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate and develop advanced electronic solutions. His work has significantly impacted the efficiency and effectiveness of wireless communication technologies.
Collaborations
He collaborates with talented coworkers, including Junse Lee and Hyunseok Yu, who contribute to the innovative projects at Samsung Electronics.
Conclusion
Hongmin Choi's contributions to electronic devices and wireless communication are noteworthy, showcasing his expertise and commitment to innovation. His patents reflect a deep understanding of technology and its applications in modern communication systems.