Head positioning control system for use in a disk drive using di

Details Head positioning control system for use in a disk drive using di Head positioning control system for use in a disk drive using di

1997-08-26

1999-12-14

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7804, G11B 555

Patent

active

060025441

ABSTRACT:
A head positioning control system for use in a HDD and arranged to position a head in a target position has different seek control systems arranged to be operated respectively when a read access is made and when a write access is made. When the read access is made, the system using target velocity data for controlling read seek executes read seek control. When the write access is made, the system using target velocity data for controlling write seek executes write seek control. The read seek control allows the head to be moved to the target position at relatively high velocity. The write seek control allows the head to relatively stably and accurately reach the target position.

REFERENCES:
patent: 5150266 (1992-09-01), Albert
patent: 5754358 (1998-05-01), Yatsu
patent: 5859742 (1999-01-01), Takaishi
"Magnetic Disk Device," Patent Abstracts of Japan, Abstract only of JP5-258487, Oct. 8, 1993.

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