Doh-Young Kim

Title: Innovations of Doh-Young Kim

Introduction

Doh-Young Kim is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of electronics, particularly in the development of advanced locking mechanisms for delay-locked loops.

Latest Patents

Doh-Young Kim holds 2 patents that showcase his innovative work. His latest patents include a lock detector and a delay-locked loop circuit. The lock detector of a delay-locked loop (DLL) features a lock detection unit and a bias unit. The lock detection unit generates a charge control signal based on a reference current from an external source and a series of delay signals from a voltage-controlled delay line (VCDL). This unit controls a charge current based on the charge control signal and detects the lock state of the DLL based on a voltage that varies with the charge current. The bias unit provides a bias voltage to control the magnitude of the charge current, ensuring stable detection of the DLL's lock state. The delay-locked loop circuit includes a phase frequency detector, a charge pump, a loop filter, a voltage-controlled delay line, and a coarse lock detector. The phase frequency detector generates signals corresponding to phase and frequency differences between an input clock signal and a feedback signal, facilitating precise clock signal generation.

Career Highlights

Doh-Young Kim is currently employed at Samsung Electronics Co., Ltd., where he continues to push the boundaries of technology through his innovative designs and solutions. His work has been instrumental in enhancing the performance and reliability of electronic systems.

Collaborations

Doh-Young collaborates with Phil-Jae Jeon, a talented woman in the same field, contributing to the advancement of their projects and innovations.

Conclusion

Doh-Young Kim's contributions to the field of electronics through his patents and work at Samsung Electronics Co., Ltd. highlight his role as a leading inventor in the industry. His innovative designs continue to influence the development of advanced electronic systems.