Disk apparatus for controlling a seek operation of a read/write

Details Disk apparatus for controlling a seek operation of a read/write Disk apparatus for controlling a seek operation of a read/write

1996-06-11

1998-08-18

Dinh, Tan

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7808, 360 7704, G11B 5516

Patent

active

057965463

ABSTRACT:
A disk apparatus in which a seek operation of one of a plurality of heads to a target position on one of a plurality of recording disks is performed by using location data on the one of the recording disks, includes a memory unit in which at least defect location data is stored, the defect location data indicating a location of a defect on the recording disks. A defect location determining unit determines a seek path of one of the heads from a present position to the target position prior to performing the seek operation, and detects whether the defect location is included in the seek path. A seek control unit performs the seek operation of the one of the heads by using the location data on the one of the recording disks, and inhibits using the location data at the defect location when the defect location determining unit detects that the defect location is included in the seek path.

REFERENCES:
patent: 4924331 (1990-05-01), Robinson et al.
patent: 5084789 (1992-01-01), Kamo et al.
patent: 5268884 (1993-12-01), Kiuchi et al.
patent: 5271018 (1993-12-01), Chan
patent: 5434725 (1995-07-01), Hirose et al.

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