Head positioning control system for use in a disk drive

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

1997-09-22

2000-06-20

Klimowicz, William

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 5596

Patent

active

060784601

ABSTRACT:
A head positioning control system for use with a disk drive having a head unit with separate read and write heads is disclosed. A CPU executes the seek control for moving a head to a target track on the basis of the servo data prerecorded on the disk. After the seek control, the CPU executes the track following control operation for positioning the read head within a range of a target track at the time of read operation and positioning the write head within a range of the target track at the time of write operation on the basis of the positional information based on the servo data and the table information prepared in an EEPROM. The table information includes the positioning control reference information for determining the final set point of the read gap or the write gap in accordance with the read operation or the write operation, respectively, for each track.

REFERENCES:
patent: 5235478 (1993-08-01), Hoshimi et al.
patent: 5757574 (1998-05-01), Chainer et al.
patent: 5801908 (1998-09-01), Akiyama et al.
patent: 5847907 (1998-12-01), Hashimoto

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