Chang Hyun Hong

Title: Chang Hyun Hong: Innovator in Optical Wireless Communication

Introduction

Chang Hyun Hong is a notable inventor based in Goyang, South Korea. He has made significant contributions to the field of optical wireless communication, holding a total of 3 patents. His work focuses on enhancing communication methods through innovative technologies.

Latest Patents

One of his latest patents is the "S2-PSK optical wireless communication method and apparatus." This invention includes a modulator that generates a reference signal with periodically repeating binary zeros and ones. It receives an input of a first binary data signal and outputs a second binary data signal. The second binary data signal matches the frequency of the reference signal and has a corresponding phase depending on the input data. Additionally, a transmitter controls light sources based on the reference and data signals.

Another significant patent is the "Image sensor communication system and communication method using rolling shutter modulation." This invention enables communication between an LED and a rolling shutter camera. It utilizes a coding unit to encode transmission data, which is then used to control the LED. The rolling shutter camera captures images based on the LED's on/off states, allowing for data extraction from the brightness signals generated.

Career Highlights

Chang Hyun Hong is affiliated with Kookmin University, where he continues to advance research in optical communication technologies. His work has garnered attention for its practical applications in modern communication systems.

Collaborations

He collaborates with talented individuals such as Yeong Min Jang and Van Trang Nguyen, contributing to a dynamic research environment.

Conclusion

Chang Hyun Hong's innovative patents and contributions to optical wireless communication highlight his role as a leading inventor in the field. His work continues to influence advancements in communication technology.