| 摘要 |
A disk which incorporates a variable-phase servo burst pattern is disclosed. The disk has servo information thereon. The servo information includes a first servo burst pattern written on a first track and a second servo burst pattern written on a second track. Both the first servo burst pattern and the second servo burst pattern have a plurality of transition pulses. The corresponding transition pulses of the first servo burst pattern and the second servo burst pattern are 180 degrees out of phase from one another. Furthermore, a method of writing servo-information which is used to position a magneto-resistive head on a centerline of a track is also disclosed. The method includes the steps of (1) writing a first servo burst pattern on a first track, the first servo burst pattern having a plurality of transition pulses; and (2) writing a second servo burst pattern on a second track, the second servo burst pattern having a plurality of transition pulses, wherein the corresponding transition pulses of the first servo burst pattern and the second servo burst pattern are 180 degrees out of phase from one another.
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