Knobbe, Martens Olson & Bear LLP
Hard disk, control unit for a disk device, and method for controlling a disk device
A hard disk includes: a plurality of servo areas which are elongated radially from a center of the hard disk to an outward thereof over tracks thereof; and a plurality of data areas which are respectively provided between the plurality of servo areas; wherein alternative operation is conducted per servo sector containing one of the plurality of servo areas and a data area provided subsequent to the one of the plurality of servo areas and having a defect created therein when a user sector containing at least a portion of the data area and functioning as an access unit has the defect therein.
Kabushiki Kaisha Toshiba
G G G G G
G11B G11B G11B G11B G11B
additional additional inventional additional additional
Kenji Yuuichi
Yoshida Abe