Company Filing History:
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1 out of 7,603 Years Active: 2009-2011
Title: Innovations of Hyunchol Shin
Introduction
Hyunchol Shin is a notable 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 five patents to his name, his work has advanced the technology in this specialized area.
Latest Patents
Hyunchol Shin's latest patents include a frequency synthesizer and a high-speed automatic calibration device. The frequency synthesizer 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 digital value. It also includes a frequency difference detector that calculates the difference between this digital value and a target frequency. The automatic frequency calibration logic selects an optimal control code for a capacitor bank, ensuring that the output frequency is closer to the target frequency. Additionally, the loop bandwidth calibration logic tunes the charge pump gain to maintain a constant loop bandwidth. This innovation significantly increases calibration speed while keeping the loop bandwidth constant within the output frequency range.
Another patent focuses on an automatic frequency calibration apparatus and method for a phase-locked loop based frequency synthesizer. This apparatus also utilizes a frequency-to-digital converter and includes a target value setting section that provides a digital value corresponding to a target frequency. A finite state machine calibrates the frequency of the VCO output signal by using the difference between the two digital values. This advancement enhances both the calibration speed and frequency resolution of the automatic frequency calibration apparatus.
Career Highlights
Hyunchol Shin has worked with esteemed organizations such as Kwangwoon University Industry-Academic Collaboration Foundation and Integrant Technologies Inc. His experience in these institutions has allowed him to collaborate on various innovative projects.
Collaborations
Some of his notable coworkers include Jaewook Shin and Jongsik Kim. Their collaborative efforts have contributed to the success of the projects they have undertaken together.
Conclusion
Hyunchol Shin's contributions to frequency synthesis and automatic calibration devices have made a significant impact in the field. His innovative patents and collaborations highlight his expertise and dedication to advancing technology.