Company Filing History:
Years Active: 2005
Title: Innovations of Shuzhi Ge in Hard Disk Drive Technology
Introduction
Shuzhi Ge is a notable inventor based in Singapore, recognized for his contributions to the field of hard disk drive technology. With a total of 2 patents, he has developed innovative solutions that address critical challenges in the performance and reliability of disk drives.
Latest Patents
One of his latest patents is titled "Robust triple-mode compensator for hard disk drives with dynamic friction." This invention tackles the complexities of nonlinear friction that occurs between surfaces in relative motion, particularly in the actuator pivot of hard disk drives. The conventional two-mode proximate time optimal servomechanism (PTOS) is insufficient for modern HDDs due to design limitations. Ge's triple-mode control scheme introduces a proximate time-optimal controller for track seeking, a robust compensator for track following, and a bridging control to ensure continuity of control signals. This innovative approach simplifies the design and enhances performance by not relying on friction models.
Another significant patent is "Disturbance attenuation in a precision servomechanism by a frequency-separated acceleration soft sensor." This invention replaces the traditional current control loop with an acceleration feedback control loop that utilizes a frequency-separated acceleration soft sensor. This method effectively mitigates disturbances such as friction and vibration that hinder positioning accuracy. By estimating the required acceleration signal, Ge's invention eliminates the need for physical accelerometers, thereby improving system reliability and reducing costs.
Career Highlights
Shuzhi Ge is affiliated with the National University of Singapore, where he continues to advance research in the field of engineering and technology. His work has significantly impacted the design and functionality of hard disk drives, making them more efficient and reliable.
Collaborations
Ge has collaborated with esteemed colleagues, including Tong Heng Lee and Yaolong Luo, contributing to the advancement of innovative technologies in their field.
Conclusion
Shuzhi Ge's innovative patents reflect his commitment to enhancing hard disk drive technology. His work not only addresses existing challenges but also paves the way for future advancements in the industry.