Company Filing History:
Years Active: 1999-2003
Title: Innovations of Wing Hung Chan
Introduction
Wing Hung Chan is a notable inventor based in Singapore, SG. He has made significant contributions to the field of data storage technology, holding a total of 5 patents. His work focuses on improving the efficiency and reliability of disc drives.
Latest Patents
One of his latest patents is titled "Implementation of variable bit density recording in storage disc drives." This invention pertains to an apparatus and method for recording data in a variable bit density disc drive. The disc drive includes recording surfaces, each having a corresponding head for recording data. At least one head operates at a different recording frequency from the other heads, creating a variable bit density for the different recording surfaces. The combination of head recording frequencies is determined following an error testing operation, and a unique physdisc lookup table is created based on the determined recording frequencies. This lookup table is used to allocate data sectors and convert between logical and physical block addresses.
Another significant patent is the "Method to eliminate reassignments." This method involves copying data stored at one sector, referred to as a moving sector, to another sector, known as a moving spare. The logical address associated with the moving sector is then assigned to the moving spare. The elimination process is repeated until the reassignments are eliminated, with verification of the copied data conducted to ensure data integrity. This process is preferably executed only when the disc drive is in an idle mode, and records are kept and updated throughout the process.
Career Highlights
Wing Hung Chan is currently employed at Seagate Technology Incorporated, a leading company in data storage solutions. His innovative work has contributed to advancements in the efficiency and reliability of storage devices.
Collaborations
He has collaborated with notable coworkers, including Wei Loon Ng and Beng Wee Quak, who have also contributed to the field of data storage technology.
Conclusion
Wing Hung Chan's contributions to the field of data storage through his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to impact the efficiency and reliability of disc drives in the industry.