Patent ID: 6091566
Filing Date: 2000-07-18
Classification: G11B

Abstract:
A method of positioning a magnetoresistive head for reading and writing information from and to a disk, the magnetoresistive head including a magnetoresistive read element and a write element, the write clement being spaced a predetermined distance from the read clement, the disk including at least one track having at least one servo area for stoning servo information for identifying a track location, at least one identification area for storing sector information for identifying a sector, and at least one data area for writing or reading data information, the method comprising the steps of:(a) obtaining a position error signal from the servo area;(b) adjusting said position error signal by adding a first offset amount when said write element is writing information on said disk;(c) adjusting said position error signal by adding a second offset amount when said read element is reading data from said disk,wherein said first and second offsets are non-zero in magnitude and of opposite directions; and(d) positioning said magnetoresistive head on said disk in response to the adjusted position error signal.