In-wook Hwang

Title: In-wook Hwang: Innovator in Optical Recording Technology

Introduction

In-wook Hwang is a notable inventor based in Gyeonggi-do, South Korea. He has made significant contributions to the field of optical recording technology, holding 2 patents that showcase his innovative approaches to improving optical systems.

Latest Patents

Hwang's latest patents include a tracking error signal detecting method that selectively utilizes a push-pull method, an improved push-pull method, and a three-beam method. This optical recording/reproducing apparatus features an optical pickup and a signal processor. The optical pickup is designed with an optical splitting device that divides light from a first light source into a main light beam and symmetrical sub-light beams. These beams are directed onto a recording medium, while a light detection device captures the reflected beams to detect tracking error signals using the three-beam method and one of the push-pull methods. This selective detection allows for optimal tracking servo-control, regardless of the optical disc type.

Another patent focuses on an optical recording and reproducing apparatus that adjusts the tilt of an optical pickup based on the jitter amount of a reproduction signal. This system includes a tilt adjusting unit, a jitter detecting unit, and a tilt controlling unit that minimizes jitter by adjusting the tilt angle of the object lens. This innovation eliminates the need for additional space for a displacement sensor, enhancing the efficiency of the optical recording process.

Career Highlights

In-wook Hwang is currently employed at Samsung Electronics Co., Ltd., where he continues to develop cutting-edge technologies in optical recording. His work has significantly advanced the capabilities of optical systems, making them more efficient and reliable.

Collaborations

Hwang has collaborated with notable colleagues, including Pyong-yong Seong and Yong-ki Son, contributing to the advancement of optical technologies through teamwork and shared expertise.

Conclusion

In-wook Hwang's contributions to optical recording technology through his innovative patents demonstrate his commitment to enhancing the efficiency and effectiveness of optical systems. His work at Samsung Electronics Co., Ltd. continues to influence the field positively.