Sang Jung Ra

Title: **Inventor Sang Jung Ra: A Pioneer in Telecommunications Innovations**

Introduction

Sang Jung Ra is a prominent inventor based in Daejeon, South Korea, recognized for his contributions to the field of telecommunications. With a total of three patents to his name, he has made significant advancements that enhance communication technologies and signal processing methods.

Latest Patents

Among his latest innovations are two notable patents. The first patent, titled "Method for Acquiring Synchronization", focuses on improving synchronization in a cable network. It details a method where a PHY receiver receives a signal from a PHY transmitter and acquires channel synchronization through the detection of a symbol containing a channel preamble. This involves performing a cross-correlation operation on the received signal to ensure effective synchronization.

The second patent, "Method and Apparatus for Compensating for Variable Symbol Timing using Cyclic Prefix in Non-Synchronized OFDM System", presents a technique for estimating the symbol timing in an unsynchronized Orthogonal Frequency-Division Multiplexing (OFDM) system. This innovation addresses the challenges related to symbol timing due to phase differences and frequency offsets, ultimately contributing to improved channel equalization.

Career Highlights

Sang Jung Ra works at the Electronics and Telecommunications Research Institute (ETRI), where he plays a crucial role in advancing research and development in telecommunications. His expertise in synchronization and signal processing has positioned him as a leader in his field, making valuable contributions to the industry.

Collaborations

Throughout his career, Ra has collaborated with esteemed colleagues, including Dong Joon Choi and Nam Ho Hur. Together, they have worked on various projects aimed at enhancing communication systems and technologies, contributing to their respective fields through innovative research and development.

Conclusion

Sang Jung Ra stands out as a key figure in the telecommunications sector, with his patents showcasing his ability to address complex challenges in signal synchronization and timing. His work at the Electronics and Telecommunications Research Institute, combined with his collaborative efforts, illustrates a commitment to advancing technological innovation in communication systems.