Hee-Chan Choi

Title: Hee-Chan Choi: Innovator in Wireless Communication Technologies

Introduction

Hee-Chan Choi is a notable inventor based in Suwon-si, South Korea. He has made significant contributions to the field of wireless communication, holding a total of 3 patents. His work focuses on enhancing the performance and efficiency of communication systems.

Latest Patents

One of his latest patents is an "Apparatus and method for canceling direct current (DC) offset in broadband wireless access communication system." This invention provides a method for canceling a DC offset by performing self-calibration in a modulator/demodulator (modem). The process includes attempting initial synchronization acquisition in the modem, and if successful, it cancels the DC offset through DC offset trace and cancellation.

Another significant patent is the "Apparatus and method for improving receiving sensitivity of portable radio frequency identification." This invention aims to enhance the receive sensitivity of portable RFID systems. It features a variable phase shifter connected between an antenna and a directional coupler, which adjusts the impedance in response to phase shifts. This calibration allows for an optimal antenna reflection coefficient, thereby improving the receiving sensitivity.

Career Highlights

Hee-Chan Choi is currently employed at Samsung Electronics Co., Ltd., a leading company in technology and innovation. His work at Samsung has allowed him to contribute to cutting-edge advancements in wireless communication.

Collaborations

Hee-Chan has collaborated with notable coworkers, including Dong-woo Lee and Seung-Bum Kim. Their teamwork has fostered an environment of innovation and creativity within their projects.

Conclusion

Hee-Chan Choi's contributions to wireless communication technologies demonstrate his expertise and commitment to innovation. His patents reflect a deep understanding of the challenges in the field and provide solutions that enhance communication systems.