Ki-yun Kim

Title: Ki-yun Kim: Innovator in OFDM Transmission Technologies

Introduction

Ki-yun Kim is a notable inventor based in Kwangmyeong-si, South Korea. With a keen focus on advancements in communication systems, he holds two patents that contribute significantly to the field of orthogonal frequency division multiplexing (OFDM) technologies. His innovative approaches to frequency offset estimation and channel equalization have broad implications for the telecommunications industry.

Latest Patents

One of Ki-yun Kim's latest patents is titled "Preamble design for frequency offset estimation and channel equalization in burst OFDM transmission system." This invention presents a method for creating a transmission data frame that varies the length of the guard interval in accordance with the channel environment. By utilizing only the ending part of the guard interval for frequency offset estimation, this innovative method enhances frequency estimation efficiency, even with a small number of samples. Additionally, it efficiently reduces Gaussian random noise during channel equalization by averaging two symbols in the time area and referencing weights from adjacent subcarriers.

Another significant patent is the "Device and method for symbol frame synchronization of OFDM transmitter and receiver." This patent addresses frame synchronization by incorporating a unique synchronization pattern at the beginning of a symbol frame within the OFDM transmitter. The pattern enhances the accuracy and efficiency of synchronization procedures in the communications system, irrespective of frequency and phase offset. The creation and detection of a free-length code pattern enable improved start point detection in fading channels, marking a significant advancement over previous OFDM symbol standards.

Career Highlights

Ki-yun Kim has made substantial contributions to the field of telecommunications while working at Samsung Thales Co., Ltd. His expertise in OFDM technologies has positioned him as a key figure within the company, driving innovations that enhance communication reliability and efficiency. With two patents to his name, he exemplifies the role of inventors in shaping modern communication systems.

Collaborations

Throughout his career, Ki-yun Kim has worked alongside talented colleagues, including Ho Jun Kim and Hyung-Jin Choi. Collaborating with such professionals has undoubtedly enriched his work and contributed to the advancement of their shared goals in telecommunications innovation.

Conclusion

Ki-yun Kim's contributions to OFDM transmission technologies showcase his commitment to advancing communication systems. Through his innovative patents, he significantly enhances the efficiency and reliability of telecommunications processes. As technology continues to evolve, inventors like Ki-yun Kim will play a crucial role in shaping the future of communication.