Disk controller, disk drive device, and disk control method

Details Disk controller, disk drive device, and disk control method Disk controller, disk drive device, and disk control method

2011-07-26

2011-07-26

Sniezek, Andrew L (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S075000, C711S112000

Reexamination Certificate

active

07986489

ABSTRACT:
According to one embodiment, a disk controller includes a receiver, a read-modify-write controller, and a wait controller. The receiver receives data in units of predetermined data length. The read-modify-write controller performs a read-modify-write operation when the receiver receives the data to write the data to a sector on a disk medium the rotation of which is controlled. The sector is longer than the predetermined data length. The wait controller delays the start of the read-modify-write operation by the read-modify-write controller for within the time which the disk medium takes to rotate once and which is substantially the same as the time required to control the read-modify-write operation.

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Notice of Reasons for Rejection for the Japanese Patent Application No. 2009-119132 issued by the Japan Patent Office on May 18, 2010.

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