Cheol-Hyo Lee

Title: Innovations of Cheol-Hyo Lee in UWB Wireless Communication

Introduction

Cheol-Hyo Lee is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of ultra-wideband (UWB) wireless communication. With a total of 3 patents, his work focuses on enhancing communication systems through innovative technologies.

Latest Patents

One of his latest patents is a "Range measurement apparatus and method using chaotic UWB wireless communication." This invention discloses an apparatus designed to measure range based on chaotic UWB wireless communication technology. The apparatus includes several components, such as a chaotic signal generating/modulating unit, a transceiving unit, a detecting unit, a transform unit, a comparison unit, and a range measurement unit. The transform unit converts the analog voltage signal from the detecting unit into digital signals based on a first sampling period. The comparison unit compares the analog voltage signal from the detecting unit with a predetermined threshold value to output a comparison signal. The range measurement unit calculates a time point corresponding to a leading edge, which is the moment when initial data of a packet payload arrive, using the digital signals based on the threshold value and the comparison signal. This allows for accurate range measurement calculations.

Another notable patent is the "Radio communication system, radio communication apparatus and radio communication method for UWB impulse communication." This patent provides a radio communication system for UWB impulse communications, along with a corresponding radio communication apparatus and method. The system minimizes power consumption by eliminating the need for carrier detection and sharing transmission/reception time information in UWB impulse communications. It includes a network coordinator and one or more devices that communicate on a superframe basis under the network coordinator's guidance. The devices perform data transmission and reception in predetermined time slots and then enter an inactive state to reduce power consumption.

Career Highlights

Cheol-Hyo Lee is affiliated with the Electronics and Telecommunications Research Institute, where he continues to innovate in the field of wireless communication. His work has been instrumental in advancing UWB technologies, which are crucial for various applications in modern communication systems.

Collaborations

He has collaborated with notable colleagues, including Jae-Young Kim and Dong-Jo Park, contributing to the development of cutting-edge technologies in their field.

Conclusion

Cheol-Hyo Lee's contributions to UWB wireless communication through his