This inventor holds 5 USPTO granted patents. Top assignee: Samsung Electronics Co., Ltd.. Active years: 2009-2010.
Location History:
- Yongin-si, KR (2009)
- Suwon-si, KR (2009 - 2010)
Company Filing History:
Years Active: 2009-2010
Title: Innovations of Yun-young Kim
Introduction
Yun-young Kim is a prominent inventor based in Suwon, South Korea. He has made significant contributions to the field of orthogonal frequency division multiplexing (OFDM) systems. With a total of 5 patents to his name, his work has advanced the technology used in communication systems.
Latest Patents
One of his latest patents is a "Sampling frequency offset estimation apparatus and method for OFDM system." This invention provides a method to estimate sampling frequency offsets in OFDM systems. The apparatus includes an analog-to-digital converter (ADC) that samples a received signal based on a predetermined frequency. It also features a Fast Fourier Transform (FFT) unit that transforms the sampled signal into the frequency domain. Additionally, a phase calculator computes phase shifts of pilot subcarriers, while a determiner calculates the times at which samples shift due to these phase shifts. A time offset calculator and a frequency offset calculator further enhance the accuracy of the sampling frequency offset estimation.
Another notable patent is the "Sampling frequency offset tracking method and OFDM system using the same." This method involves determining a search direction for maximum likelihood estimation (MLE) using a carrier frequency offset estimated from pilot subcarriers. It calculates the size of the MLE search region and tracks the sampling frequency offset by maximizing correlation between pilot subcarriers and reference pilot subcarriers. This innovation effectively reduces the estimation error in OFDM systems.
Career Highlights
Yun-young Kim is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in the field of telecommunications. His work has been instrumental in enhancing the performance and reliability of communication systems.
Collaborations
Throughout his career, Yun-young has collaborated with notable colleagues, including Jae-Ho Roh and Yeon-gon Cho. These collaborations have contributed to the successful development of his patents and innovations.
Conclusion
Yun-young Kim's contributions to the field of OFDM systems through his patents demonstrate his expertise and commitment to advancing communication technology. His work continues to influence the industry and pave the way for future innovations.