Location History:
- Gyeonggi-do, KR (2016)
- Seoul, KR (2016)
- Suwon-si, KR (2018 - 2019)
Company Filing History:
Years Active: 2016-2019
Title: Yi-Ju Roh: Innovator in Wireless Communication Technology
Introduction
Yi-Ju Roh is a prominent inventor based in Suwon-si, South Korea. He has made significant contributions to the field of wireless communication, holding a total of 4 patents. His work focuses on enhancing communication systems to support higher data rates and improve performance.
Latest Patents
One of Yi-Ju Roh's latest patents is a method and device for extending beam area in wireless communication systems. This invention is designed for pre-5th-generation (5G) or 5G communication systems, aiming to support data rates that exceed those of the 4th-generation (4G) systems, such as long-term evolution (LTE). The device includes multiple antenna sets and elements, an RF transceiver with switches and phase shifters, and a control unit that determines beam forming direction and signal phase.
Another notable patent is a method and apparatus for direct conversion receiver correcting direct current offset. This invention addresses the calibration of DC offset in direct conversion receivers. It features variable gain amplifiers, a DC offset monitoring unit, variable Digital to Analog Converters (DACs), and a DC offset cancellation unit. This technology allows for precise cancellation of DC offset without being influenced by external factors, thus enhancing receiver performance.
Career Highlights
Yi-Ju Roh is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in the field of wireless communication. His work has been instrumental in advancing technologies that are critical for the future of communication systems.
Collaborations
He collaborates with talented individuals such as Seung-Pyo Hong and Dong-Yun Jung, contributing to a dynamic and innovative work environment.
Conclusion
Yi-Ju Roh's contributions to wireless communication technology are noteworthy, and his patents reflect his commitment to advancing the field. His work at Samsung Electronics Co., Ltd. continues to influence the future of communication systems.