Liyong Chen

Title: Innovations by Liyong Chen: Pioneering Advances in Digital Control Technology

Introduction

Liyong Chen is a notable inventor based in Plano, TX, known for his contributions to digital control technologies. With a total of two patents to his name, Chen has focused on developing methods and apparatus that enhance the performance and reliability of motor systems.

Latest Patents

One of Chen's latest patents is titled "Methods and Apparatus to Lock a Phase Lock Loop to a Motor." This invention discloses innovative mechanisms for synchronizing a phase lock loop with a spindle motor. The controller involves a counter that determines the period of an operating signal from the motor, while an oscillator generates a control signal based on this input. The initializer then creates an input value that ensures the oscillator generates a control signal in sync with the operating signal.

Another significant patent by Liyong Chen is titled "Digital Actuator Control and Method." This invention outlines methods and apparatus for the digital control of a head-disk assembly actuator with dynamic velocity compensation. It entails sampling the actuator voltage in an HDA, determining a velocity error, and applying compensated voltage to the actuator motor. The apparatus for carrying out these methods includes a sampler, a timer, and a digital processing engine, which together facilitate precise control over the actuator motor.

Career Highlights

Chen is currently associated with Texas Instruments Corporation, a globally recognized leader in semiconductor solutions and embedded processors. His work focuses on advancing technologies that optimize motor control systems in hard drive assemblies, showcasing his commitment to innovation in electrical engineering.

Collaborations

Throughout his career, Liyong Chen has collaborated with notable peers such as John Kevin Rote and Irfan Azam Chaudhry. These collaborative efforts have contributed to the development of cutting-edge technologies and have aided in bringing his inventive ideas to fruition.

Conclusion

Liyong Chen stands out as a significant figure in the realm of innovation, particularly in the areas of motor control and digital processing. His patented inventions hold the potential to significantly influence the efficiency and effectiveness of motor systems, underscoring his role as a forward-thinking inventor dedicated to technological advancement.