Company Filing History:
2 out of 6 
1 out of 2,623 
Years Active: 2011-2012
Title: Hyung-Chul Park: Innovator in Image Signal Processing
Introduction
Hyung-Chul Park is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the field of image signal processing, holding a total of 3 patents. His work focuses on enhancing the performance of receivers and improving signal quality.
Latest Patents
One of his latest patents is an "Apparatus for rejecting image in receiver." This invention relates to a device designed to reject image signals in a receiver of a direct conversion structure. It includes a signal mismatch compensation unit that detects gain and phase errors between In-phase (I) and Quadrature (Q) signals. The unit effectively rejects image signals and outputs a refined result. The invention achieves a high image rejection ratio while minimizing adaptation time and preventing the adverse effects of DC offset on the image rejection ratio.
Another significant patent is the "Apparatus and method for duty cycle correction." This apparatus performs a moving sum calculation on square-wave signals and compares the results with a predetermined threshold voltage. It adjusts the threshold voltage based on the mean value of the output signal, ensuring accurate duty cycle correction.
Career Highlights
Hyung-Chul Park has worked with prominent organizations such as Phychips Inc. and the Korea Advanced Institute of Science and Technology. His experience in these companies has contributed to his expertise in signal processing technologies.
Collaborations
He has collaborated with notable coworkers, including Sun A Kim and Dae-Young Yoon, further enhancing his innovative work in the field.
Conclusion
Hyung-Chul Park's contributions to image signal processing through his patents demonstrate his commitment to innovation and technology advancement. His work continues to influence the industry and improve the quality of signal processing systems.