Patent ID: 11862204
Assignee: TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A method for controlling a magnetic disk device including:
a magnetic disk including a track having a plurality of sectors;
a motor configured to rotate the magnetic disk; and
a magnetic head, the method comprising:
performing a first read operation of reading target sectors among the sectors of the track, with the magnetic head during a first revolution of the magnetic disk;
detecting an off-track state of the magnetic head during the first revolution of the magnetic disk;
performing a first error correction with respect to data read from the target sectors during the first read operation; and
performing a second read operation of selectively reading a part of the target sectors for which the off-track state has been detected or the first error correction is unsuccessful, with the magnetic head during a second revolution of the magnetic disk.