Chang-Jun Oh

Title: Chang-Jun Oh: Innovator in Electronics and Telecommunications

Introduction

Chang-Jun Oh is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of electronics and telecommunications, holding a total of 6 patents. His work focuses on improving the efficiency and performance of electronic circuits.

Latest Patents

One of his latest inventions is a mixer using a replica voltage-current converter. This invention addresses the inefficiencies of conventional mixers that operate at high speeds, which tend to dissipate a lot of electrical power and have low output impedance. By utilizing an additional amplifier to feedback the output current of the replica voltage-current converter, the linearity of the mixer is significantly improved.

Another notable patent is the CMOS offset trimming circuit and offset generation circuit. This invention aims to obtain the corrected optimum offset value for correcting the offset generated in CMOS analog circuits. The offset trimming circuit includes a flip-flop for loading data to obtain an optimum offset value, a fuse circuit for setting the circuit with the corrected optimum offset value, and a selection logic circuit for outputting a selected signal as a trimming output signal.

Career Highlights

Chang-Jun Oh is affiliated with the Electronics and Telecommunications Research Institute, where he continues to innovate and develop new technologies. His work has been instrumental in advancing the capabilities of electronic systems.

Collaborations

He has collaborated with notable coworkers, including Jong-Ryul Lee and Won-Chul Song, contributing to various projects and enhancing the research output of their institution.

Conclusion

Chang-Jun Oh's contributions to electronics and telecommunications demonstrate his commitment to innovation and improvement in technology. His patents reflect a deep understanding of electronic systems and a drive to enhance their performance.