| 摘要 |
A track access control system for a magnetic disc system including a magnetic disc having a plurality of servo tracks in a plurality of track zones divided in a radial direction, a logical to physical track address translation unit, a track offset update unit, and a control unit, to access a magnetic head at a physical track with offset correction. The track offset update may be carried out in an initial condition, or when a seek command is received. Also, the track offset update may be compulsorily effected when the update is not effected in a predetermined time. In this case, the system may output a virtual error data. In addition, the track offset update may be effected in response to a temperature change of the system.
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