Paul S Cheung

Title: Paul S. Cheung: Innovator in Phase Locked Loop Technology

Introduction

Paul S. Cheung is a notable inventor based in Woodbridge, CA (US). He has made significant contributions to the field of electronics, particularly in the development of phase locked loop technology. With a focus on improving clock recovery from non-uniformly spaced data pulses, Cheung's work has implications for various applications in communication systems.

Latest Patents

Cheung holds a patent for a "Phase locked loop having constant gain for recovering clock." This innovative design utilizes a programmable current source and charge pump, where the current into the charge pump is proportional to the number of VCO clock periods between data pulses. As the time between pulses increases, the current charging the pump increases, and conversely, when the time between pulses decreases, the current charging the pump decreases. This mechanism maintains a constant loop gain independent of the data pattern, showcasing Cheung's ingenuity in addressing challenges in clock recovery.

Career Highlights

Paul S. Cheung is associated with Minnesota Mining and Manufacturing Company, commonly known as 3M. His work at 3M has allowed him to collaborate with other talented professionals in the field, further enhancing his contributions to technology and innovation.

Collaborations

One of Cheung's notable coworkers is Corey D. Petersen. Their collaboration has likely fostered an environment of innovation and creativity, leading to advancements in their respective projects.

Conclusion

Paul S. Cheung's contributions to phase locked loop technology exemplify the impact of innovative thinking in electronics. His patent and work at 3M highlight the importance of constant gain mechanisms in clock recovery systems. Cheung's achievements continue to influence the field and inspire future innovations.