Sung Ryong Lee

Title: Innovations of Sung Ryong Lee

Introduction

Sung Ryong Lee is a notable inventor based in Seongnam-Si, South Korea. He has made significant contributions to the field of electronics, particularly in the development of advanced clock and data recovery devices. With a total of three patents to his name, Lee's work showcases his expertise and innovative spirit.

Latest Patents

One of his latest patents is a "Clock and Data Recovery Device." This device includes an equalizer that compensates for channel loss of input data, a phase detector that compares data output from the equalizer and a fed-back clock, and outputs an up signal and a down signal. It also features a charge pump that operates according to these signals to output a control signal, a loop filter that removes high-frequency components from the control signal, and a voltage-controlled oscillator that adjusts the clock frequency based on the control signal. Additionally, it includes a voltage-controlled oscillator buffer that adjusts the slew rate of the clock output.

Another significant patent is the "Phase Locked Loop Having Fast Lock Function." This invention includes a main voltage-controlled oscillator whose oscillation frequency is adjusted by an offset current and a control voltage. The offset current is set by an offset current setting code, and a phase frequency detector adjusts the control voltage by comparing the output signal of the main voltage-controlled oscillator with an input data signal. The offset current setter generates the offset current setting code based on the comparison results from multiple sample voltage-controlled oscillators.

Career Highlights

Sung Ryong Lee has worked with prominent companies in the semiconductor industry, including Silicon Mitus, Inc. and Hangzhou Silicon-Magic Semiconductor Technology Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to cutting-edge technologies.

Collaborations

Throughout his career, Lee has collaborated with talented individuals such as Young Jae Chang and Jae Sam Shim. These partnerships have likely enhanced his innovative capabilities and led to the successful development of his patents.

Conclusion

Sung Ryong Lee is a distinguished inventor whose work in clock and data recovery devices has made a significant impact in the electronics field. His patents reflect his innovative approach and dedication to advancing technology.