Method and apparatus for storing position offset information on

Details Method and apparatus for storing position offset information on Method and apparatus for storing position offset information on

1996-09-13

1999-02-02

Tran, Thang V.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7704, G11B 5596

Patent

active

058673431

ABSTRACT:
A method and apparatus for storing position offset information not used for aligning the read element of an MR head with the centerline of written data, during a read operation. The skew or offset between the read and the write elements on a read head is first calibrated. The offset information then stored on one or more dedicated tracks of the disk. To accomplish this, the write element is aligned with the centerline of the dedicated track. The position offset information is then written in the data field of the dedicated track. During the power-on process, the read element is aligned with the centerline of the dedicated track and the position offset information may be retrieved by simply reading the information previously stored on the dedicated track.

REFERENCES:
patent: 4890172 (1989-12-01), Watt et al.
patent: 5453887 (1995-09-01), Negishi et al.
patent: 5500776 (1996-03-01), Smith
patent: 5523902 (1996-06-01), Pederson
patent: 5570247 (1996-10-01), Brown et al.
patent: 5606469 (1997-02-01), Kosugi et al.

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