Cheng-Hao Quan

Title: Innovations of Cheng-Hao Quan in RFID Technology

Introduction

Cheng-Hao Quan is a notable inventor based in Daejeon, China. He has made significant contributions to the field of Radio Frequency Identification (RFID) technology. With a total of 4 patents to his name, his work focuses on enhancing the efficiency and effectiveness of RFID systems.

Latest Patents

One of his latest patents is titled "RFID reader and method for suppressing transmission leakage signal thereof." This invention provides an RFID reader that includes a first loop, a second loop, and a digital signal processor. The first loop is designed to suppress a first transmission leakage signal of an RX signal in response to a first leakage control signal. The second loop further suppresses a second transmission leakage signal of the RX signal, which is received through the first loop, in response to a second leakage control signal. The digital signal processor plays a crucial role by generating both leakage control signals until the level of the first transmission leakage signal is equal to or lower than a predetermined reference level.

Another significant patent by Cheng-Hao Quan is the "Passive RFID reader and operation control method therefor." This invention aims to minimize collisions among multiple RFID readers operating in a limited environment. It achieves this by allowing each RFID reader to select a communication channel at different delay times based on a random value. The RFID reader comprises several components, including a random value generating unit, a reader control unit, an anti-collision unit, a reader transmitting unit, a reader receiving unit, and a channel operation control unit.

Career Highlights

Cheng-Hao Quan is affiliated with the Electronics and Telecommunications Research Institute, where he continues to innovate in the field of RFID technology. His work has been instrumental in advancing the capabilities of RFID systems, making them more reliable and efficient.

Collaborations

Throughout his career, Cheng-Hao Quan has collaborated with several talented individuals, including Ji-Hoon Bae and Jong-Suk Chae. These collaborations have contributed to the successful development of his innovative technologies.

Conclusion

Cheng-Hao Quan's contributions to RFID technology through his patents demonstrate his commitment to innovation and excellence in the field. His work not only enhances the functionality of RFID systems but also paves the way for future advancements in this critical area of technology.