POSITION ERROR SIGNAL COMPENSATION TO PREVENT ADJACENT TRACK ERASURE

摘要

Technologies are described herein for preventing adjacent track erasure in a storage device using position error signal compensation from a previously written track in a storage device. A first data track is written to a recording medium in the storage device while position error signal information regarding deviations of a read/write head from an ideal center of the first data track are recorded. The recorded position error signal information is then utilized during the writing of a second, adjacent data track to the recording medium to position the read/write head in order to compensate for non-uniformities in the writing of the first data track.

主权项

1. A method comprising steps of:
writing data to a first data track on a recording medium in a storage device; recording position error signal information while writing the first data track, the position error signal information regarding deviations of a read/write head from an ideal center of the first data track; and writing data to a second data track on the recording medium using compensation values for a servo mechanism in the storage device generated from the recorded position error signal information to position the read/write head, the second data track being adjacent to the first data track, wherein only compensation values reflecting positive deviation of the read/write head from the first track towards the second track are used in positioning the read/write head while writing the second track and wherein the compensation values are adjusted by a weighting factor to produce a smaller corresponding compensation in the read/write head while writing the second track.