Jaewook Shin

Title: Innovations of Jaewook Shin

Introduction

Jaewook Shin is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of frequency synthesis and automatic calibration devices. With a total of 2 patents, his work focuses on enhancing the efficiency and accuracy of frequency synthesizers.

Latest Patents

Jaewook Shin's latest patents include a frequency synthesizer and a high-speed automatic calibration device. The first patent describes an automatic calibration device for a phase-locked loop based frequency synthesizer. This device features a frequency-to-digital converter that converts the frequency of a signal outputted from a voltage-controlled oscillator into a first digital value. It also includes a frequency difference detector that calculates the difference between this first digital value and a second digital value corresponding to a target frequency. The automatic frequency calibration logic selects an optimal control code for a capacitor bank, ensuring that the output frequency of the voltage-controlled oscillator is closer to the target frequency. Additionally, the loop bandwidth calibration logic tunes the charge pump gain to maintain a constant loop bandwidth within the output frequency range.

The second patent focuses on an automatic frequency calibration apparatus and method for a phase-locked loop based frequency synthesizer. This apparatus also includes a frequency-to-digital converter and a target value setting section that provides a second digital value corresponding to a target frequency. A finite state machine is utilized to calibrate the frequency of the VCO output signal by using the difference between the first and second digital values. This innovation enhances both the calibration speed and frequency resolution of the automatic frequency calibration apparatus.

Career Highlights

Jaewook Shin is affiliated with the Kwangwoon University Industry-Academic Collaboration Foundation. His work at this institution allows him to bridge the gap between academic research and practical applications in the industry.

Collaborations

Jaewook collaborates with Hyunchol Shin, contributing to advancements in their respective fields.

Conclusion

Jaewook Shin's innovative patents and contributions to frequency synthesis and calibration technology highlight his role as a significant inventor in the field. His work continues to influence advancements in electronic engineering and related industries.