Yijun Duan

Title: Yijun Duan: Innovator in Voltage Differentiation and Multi-Channel Predistortion

Introduction

Yijun Duan is a prominent inventor based in Shenzhen, China. He has made significant contributions to the field of electrical engineering, particularly in the development of innovative circuits and methods. With a total of 5 patents to his name, Duan's work showcases his expertise and creativity in addressing complex technical challenges.

Latest Patents

One of Yijun Duan's latest patents is the "Bidirectional Voltage Differentiator Circuit." This invention comprises start-up circuitry, sensing circuitry, and output circuitry coupled to logic circuitry. The start-up circuitry activates the sensing circuitry when powered on, enhancing its response time. The sensing circuitry detects variations in input voltage, and the output circuitry produces a state change at designated output nodes based on these variations. This voltage sensing circuit is capable of detecting input voltage changes regardless of whether the voltage is rising or falling, and it operates independently of the DC value of the input voltage.

Another notable patent is the "Multi-Channel Predistortion Method and Apparatus." This invention outlines a technical method that includes determining a channel index for processing, collecting forward and reverse data, and estimating a predistortion coefficient. The method improves predistortion efficiency across multiple channels by utilizing a jumping polling mode and enhances resource utilization by allowing multiple channels to share power levels.

Career Highlights

Yijun Duan has worked with several reputable companies, including STMicroelectronics (Shenzhen) R&D Co. Ltd. and ZTE Corporation. His experience in these organizations has contributed to his development as an inventor and has provided him with valuable insights into the industry.

Collaborations

Throughout his career, Duan has collaborated with notable colleagues such as Weiming Pan and James Peroulas. These collaborations have likely enriched his work and fostered innovation in his projects.

Conclusion

Yijun Duan is a distinguished inventor whose contributions to voltage differentiation and multi-channel predistortion have made a significant impact in the field of electrical engineering. His innovative patents reflect his dedication to advancing technology and improving efficiency in electronic circuits.