Magnetic disk unit

Details Magnetic disk unit Magnetic disk unit

2007-08-21

2007-08-21

Sniezek, Andrew L. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

11312975

ABSTRACT:
In a magnetic disk unit, a number of heads that is settable to a usable setting is less than a maximum number of heads providable in the magnetic disk unit. The magnetic disk unit includes a storage part to provide a buffer region that is usable as a data buffer, a reading part to read head information from a magnetic disk, and a control part to reserve a storage region in the storage part for storing the head information based on the maximum number of heads included in the head information. The control part also stores parameters with respect to the heads having the usable setting in reserved storage region, and releases a region of the storage part other than a storage region occupied by the parameters of the reserved storage region, when storing the head information in the storage part.

REFERENCES:
patent: 6385000 (2002-05-01), Ottesen et al.
patent: 6781786 (2004-08-01), Ishii
patent: 2003-249044 (2003-09-01), None

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