Sang-hyun Do

Title: Innovator Sang-hyun Do: Advancing OFDM Technology

Introduction

Sang-hyun Do is a prominent inventor based in Seoul, South Korea. With a total of five patents to his name, he has made significant contributions to the field of telecommunications, particularly focusing on orthogonal frequency division multiplexing (OFDM) technology.

Latest Patents

Among his latest innovations is the "Guard section length detecting device and method for orthogonal frequency division multiplexing system receiver." This advanced apparatus is designed to detect the guard interval length of transmission symbols within the OFDM system. It ensures the proper operation of a symbol start detector and a fast Fourier transform (FFT) window position controller. The device employs an analog-to-digital converter (ADC) to translate received OFDM signals into digital complex samples.

The system includes a symbol start position detector that identifies the symbol start position based on guard interval information from the ADC's output. Additionally, a symbol start position difference detector calculates the difference between the detected symbol start position and a delayed version of the symbol start position. The guard interval length detector then compares this difference with a preset reference value to ascertain the guard interval length. Finally, the FFT window position controller shifts the FFT window position using the detected guard interval length and corresponding symbol start information, enabling accurate FFT window recovery in the OFDM receiver.

Career Highlights

Sang-hyun Do is currently employed at Samsung Electronics Co., Ltd., a leading global technology company. His role at Samsung has allowed him to explore various innovative approaches in telecommunications, leading to the successful inventions that have been patented under his name.

Collaborations

Throughout his career, Sang-hyun has collaborated with talented professionals such as Hyung-Jin Choi and Dong-kyu Kim. Their combined efforts highlight the importance of teamwork in advancing technological innovations and the creation of groundbreaking inventions.

Conclusion

Sang-hyun Do's contributions to the field of telecommunications, particularly through his patents related to OFDM systems, are noteworthy. His innovative approach to detecting guard interval lengths greatly enhances the performance of OFDM receivers and exemplifies the critical role of inventors in shaping future technologies.