A data track pattern including a built-in servo sector for a magnetoresistive head structure for a disk drive (Data Track Pattern Including Embedded Servo Sector for a Magnetoresistive Head Structure for a Disk Drive)

摘要

A disk drive for reading and writing a magnetic pattern on a rotating magnetic storage disk in a plurality of concentric tracks using a record-light inductive recording element and a read-out coarse-resistive read element in a head transducer assembly, ) Has a servo locator with a servo position offset from the center line of the servo sector and tracking user data sector 508 by an amount related to the offset between the write-light inductive recording element and the magneto-resistive read element in the head transducer assembly (502). In addition, the servo sector includes four servo bursts. The servo bursts are arranged so that each sequential burst is offset from the previous burst by a fractional offset increment. The fractional offset subtraction is typically one-third of the track pitch.