Dae-gyu Lee

Title: **Inventor Spotlight: Dae-gyu Lee**

Introduction

Dae-gyu Lee is an innovative inventor based in Seongnam-si, South Korea. With a notable contribution to the field of electronics, he holds two patents, including advanced designs for gain control amplifiers. His commitment to improving audio technology has made a significant impact in the industry.

Latest Patents

Dae-gyu Lee's latest patents encompass a gain controlled amplifier and a cascoded gain controlled amplifier. These inventions utilize an operational amplifier to amplify input signals effectively. The design features an input resistor connected to the operational amplifier's input terminal, along with a feedback resistor that connects to its output terminal. Notably, a resistor circuit provides varying voltage levels to the amplifier's terminals based on a digital signal composed of specified bits.

The innovative aspect of these amplifiers lies in their use of an R-2R ladder circuit, which is controlled by digital signals to achieve a gain that correlates linearly with a decibel scale. This design approach enables the gain controlled amplifier to function with a small resistance value, allowing for a reduced chip size, thus making it efficient in both space and performance.

Career Highlights

Dae-gyu Lee is currently employed at Samsung Electronics Co., Ltd., where he is actively engaged in developing cutting-edge electronic solutions. His expertise in amplifier design not only reflects his dedication to innovation but also positions him as a leader in the field of audio technology.

Collaborations

Throughout his career, Dae-gyu Lee has collaborated closely with his coworker, Jae-Joon Moon. This partnership has facilitated the sharing of ideas and expertise, further enhancing the innovative processes within their projects. Together, they contribute to the development of significant technological advancements at Samsung Electronics.

Conclusion

Dae-gyu Lee is a distinguished inventor whose work on gain controlled amplifiers is paving the way for new possibilities in electronic audio applications. His patents demonstrate a profound understanding of digital signal processing and operational amplifier design. As part of a leading company like Samsung Electronics, he continues to shape the future of technology, ensuring that innovation remains at the forefront of his career.