Company Filing History:
Years Active: 2003
Title: ChiapHeok Ang: Innovator in Servo Track Writing Technology
Introduction
ChiapHeok Ang is a notable inventor based in Singapore, recognized for his contributions to the field of servo track writing technology. He holds 2 patents that showcase his innovative approach to enhancing data storage systems. His work primarily focuses on improving the accuracy and efficiency of servo writing techniques.
Latest Patents
ChiapHeok Ang's latest patents include two significant inventions. The first is titled "Servo track writing using extended copying with head offset." This invention proposes a new servo track writing technique called Extended Copying with Head Offset (ECHO). The read and write elements of the read/write head are offset from each other, allowing for a more precise writing process. A servo writer writes a guide pattern on the magnetic media disc, and ZAP correction factors are added to this pattern. The actuator arm is then adjusted to align the read head over the guide pattern, enabling the writing of new servo tracks with added correction factors. This process is repeated until the desired number of servo tracks is written.
The second patent is "Detection and cancellation of cage frequency using the clock head in a servowriter." This invention addresses the challenges posed by vibration of the spindle motor's cage. It involves writing multiple servo patterns to a reference track with a clock pattern on the disc. The clock head reads these patterns over several revolutions, identifying the magnitude and frequency of runout due to cage vibration. By detecting periods of low magnitude runout, servo patterns can be effectively written to user tracks, enhancing the overall performance of the system.
Career Highlights
ChiapHeok Ang is currently employed at Seagate Technology Incorporated, a leading company in data storage solutions. His work at Seagate has allowed him to apply his innovative ideas in a practical setting, contributing to advancements in the industry.
Collaborations
ChiapHeok has collaborated with notable colleagues such as Gabor Szita and Karl Arnold Belser, further enriching his work through shared expertise and insights.
Conclusion
ChiapHeok Ang's contributions to servo track writing technology demonstrate his commitment to innovation in the field of data storage. His patents reflect a deep understanding of the challenges in the industry and offer practical solutions that enhance performance. His work continues to influence advancements in data storage technology.