Location History:
- Lafayette, CO (US) (1999 - 2000)
- West Lafayette, CO (US) (2000 - 2001)
Company Filing History:
Years Active: 1999-2001
Title: Innovations of Toan Q Doan
Introduction
Toan Q Doan is a notable inventor based in West Lafayette, Colorado, who has made significant contributions to the field of disk drive technology. With a total of four patents to his name, Doan's work focuses on enhancing the performance and reliability of disk drives.
Latest Patents
One of his latest patents is titled "Disk drive with compensation values calculated using a non-causal impulse response." This invention relates to a disk drive servo apparatus and method that maintains a transducer on a substantially non-perturbed path, despite the tracks being written in a perturbed manner by a servo track writer. The invention utilizes a non-causal filter to determine servo track writer repetitive run-out (STW_RRO) values for each sector of each track at the drive level. These STW_RRO values are stored in their respective servo sectors on the surface of the disk for use during track following operations. During read and write operations, the STW_RRO values are retrieved from storage and are used to generate position error signals necessary to maintain the transducer on the desired path.
Another significant patent by Doan is "Efficient drive-level estimation of written-in servo position error." Similar to his previous invention, this patent also focuses on maintaining a transducer on a non-perturbed path despite the challenges posed by a servo track writer. The method involves utilizing a non-causal filter to determine STW_RRO values, which are stored and retrieved during operations to ensure accurate positioning of the transducer.
Career Highlights
Toan Q Doan is currently employed at Maxtor Corporation, where he continues to innovate in the field of disk drive technology. His work has been instrumental in improving the efficiency and accuracy of disk drives, making them more reliable for various applications.
Collaborations
Throughout his career, Doan has collaborated with notable colleagues such as Hai Thanh Ho and Bruce A Liikanen. These collaborations have contributed to the advancement of technology in the disk drive sector.
Conclusion
Toan Q Doan's contributions to disk drive technology through his innovative patents have significantly impacted the industry. His work continues to pave the way for advancements in data storage solutions.