Joonsang Choi

Title: Joonsang Choi: Innovator in Wireless Communication Technology

Introduction

Joonsang Choi is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of wireless communication, holding a total of four patents. His work focuses on improving the efficiency and accuracy of data transmission in digital communication systems.

Latest Patents

One of Joonsang Choi's latest patents is an "Apparatus for estimating and compensating carrier frequency offset and data receiving method in receiver of wireless communication system." This invention relates to a method for estimating and compensating a carrier frequency offset, which is crucial for maintaining the integrity of received signals. The apparatus correlates a received signal with a delayed version of itself within a correlation window, which is determined based on a Cycle Prefix (CP) and a preamble repetition length. This innovative approach allows for the estimation of an initial carrier frequency offset value, enhancing the performance of wireless communication systems.

Another notable patent is the "Method of detecting a frame boundary of a received signal in digital communication system and apparatus of enabling the method." This method involves generating a delayed signal from the received signal and calculating a correlation value to determine the frame boundary index. By performing correlation calculations in a time domain without oversampling, the accuracy of frame boundary detection is improved while reducing the complexity of both hardware and software.

Career Highlights

Joonsang Choi is currently employed at Posdata Company Ltd., where he continues to develop innovative solutions in wireless communication technology. His expertise and dedication to research have positioned him as a key figure in his field.

Collaborations

Throughout his career, Joonsang Choi has collaborated with talented individuals such as Jungnam Yun and Jaehyeong Kim. These partnerships have contributed to the advancement of his projects and the successful development of his patents.

Conclusion

Joonsang Choi is a distinguished inventor whose work in wireless communication technology has led to significant advancements in the field. His innovative patents demonstrate his commitment to enhancing data transmission methods, making him a valuable contributor to the industry.