Abstract
A microprocessor-based sector servosystem, which uses servo information derived only from each data surface, has been developed. Applying this servosystem to a 5.25-in hard disk drive, a 12-ms average seek time (at 1500 TPI) and +or-0.5- mu m head-positioning accuracy were achieved. The system controls the read/write head position more swiftly and accurately then in conventional head-positioning systems with a dedicated servo surface.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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