Disk drive apparatus and head switching method in a disk drive a

Details Disk drive apparatus and head switching method in a disk drive a Disk drive apparatus and head switching method in a disk drive a

1997-03-26

1999-10-19

Young, W. R.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

360 7704, G11B 555

Patent

active

059698950

ABSTRACT:
The present invention provides a method and apparatus to efficiently switch heads in a disk drive. A disk drive comprises a plurality of recording surfaces and a plurality of heads and each head is opposed to a recording surface. The heads are used for reading data from or writing data to the plurality of recording surfaces. An offset quantity table stores an offset quantity for each of the plurality of heads. The offset quantity is a value representative of the distance of a head with respect to a reference head. A head sequence table stores a predetermined head switching sequence. Head switching operations use the head switching sequence stored in the head sequence table.

REFERENCES:
patent: 5208711 (1993-05-01), Kitamura et al.
Patent Abstracts of Japan, for JP 8-287,439, 1996.

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