Chang Ho Choi

Title: Chang Ho Choi: Innovator in Aerospace Engineering

Introduction

Chang Ho Choi is a prominent inventor based in Daejeon, South Korea, known for his significant contributions to the field of aerospace engineering. With a remarkable portfolio of 7 patents, he continues to push the boundaries of innovation and technology in liquid rocket engines and transmission control systems.

Latest Patents

One of Chang Ho Choi's latest innovations is a **liquid rocket engine using a booster pump driven by an electric motor**. This cutting-edge invention addresses the challenges of ensuring sufficient inlet pressure for the propellant pump, even when the internal pressure of the propellant tank is diminished. By optimizing the design, the amount of propellant and the weight of the propellant tank can be significantly reduced. Additionally, the electric motor responsible for driving the booster pump can be effectively cooled through an oxidant and cooling lines, enhancing system efficiency.

Another notable patent is his **method and apparatus for controlling frame transmission**. This invention features a comprehensive control system consisting of several key units: a list configuration unit that manages gate control parameters, a cycle timer unit overseeing cycle start timings, and a list executing unit that performs gate control based on those parameters. Within this executing unit, various state machines handle tasks such as setting expiration times, checking gate operation information, and managing control signals for both transmission stopping and resuming in the Medium Access Control (MAC) layer.

Career Highlights

Throughout his career, Chang Ho Choi has made substantial contributions while working at notable institutions such as the Electronics and Telecommunications Research Institute and the Korea Aerospace Research Institute. His work within these esteemed organizations has allowed him to advance his research and innovations in aerospace technology.

Collaborations

Collaborating with talented professionals, Chang Ho Choi has worked alongside colleagues such as Yong Wook Ra and Byung Jun Ahn. This teamwork has enhanced the development and implementation of his innovative ideas, contributing to the field's advancement.

Conclusion

Chang Ho Choi stands out as a visionary inventor whose innovations are shaping the future of aerospace engineering. Through his extensive patent portfolio and collaborative efforts with other skilled professionals, he continues to drive significant changes in technology that can lead to more efficient and effective aerospace solutions. With his ongoing commitment to innovation, the field can expect further advancements from this exceptional inventor.