Company Filing History:
Years Active: 2002-2006
Title: The Innovations of Tao Zhang
Introduction
Tao Zhang is a prominent inventor based in Kingston, CA. He has made significant contributions to the field of disc drive technology, holding a total of 3 patents. His work focuses on improving the performance and efficiency of servo control systems in disc drives.
Latest Patents
One of Tao Zhang's latest patents is titled "Real-time automatic loop-shaping for a disc drive servo control system." This invention provides an apparatus and method for enhancing servo loop performance in disc drive storage systems. The servo loop includes a voice coil motor actuator that moves the head in response to a received servo control signal. A sensor located in the head senses servo information on the disc and produces a servo signal. This servo signal is combined with a reference signal to create a position error signal. The servo controller receives this position error signal and produces the servo control signal. A real-time adaptive loop shaping circuit detects vibrations in the position error signal and adjusts parameters of a transfer function to reduce vibrations at different frequencies.
Another notable patent is "Active damping of two-stage actuator system in a disc drive." This invention describes an actuator control system for a two-stage actuator system of a disc drive. It consists of a primary stage actuator, which is a voice coil motor that positions the head relative to a disc, and a microactuator that alters the actuator system without operating the voice coil motor. An active damping circuit is coupled to the head to operate the microactuator, effectively dampening resonance modes of the actuator system.
Career Highlights
Tao Zhang is currently employed at Seagate Technology Incorporated, where he continues to innovate in the field of data storage technology. His work has been instrumental in advancing the capabilities of disc drives, making them more reliable and efficient.
Collaborations
Throughout his career, Tao has collaborated with notable colleagues, including Kevin Arthur Gomez and Qiang Bi. These collaborations have further enriched his contributions to the field.
Conclusion
Tao Zhang's innovative work in disc drive technology has led to significant advancements in servo control systems. His patents reflect a deep understanding of the complexities involved in data storage, and his contributions continue to shape the future of this technology.