Method and apparatus providing spiral servo control for...

Details Method and apparatus providing spiral servo control for... Method and apparatus providing spiral servo control for...

2005-11-22

2005-11-22

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

06967809

ABSTRACT:
The invention provides magnetic disks with the ability for consecutive tracks to be read or written continuously, removing the traversal of the gap between tracks which degrades bandwidth delivery performance. The invention includes a disk surface formatted with tracks, and sectors within these tracks, which vary in radius. The ending radius of a sector differs significantly from its starting radius. The ending radius of the last sector of one track is very close to the starting radius of its successor track, providing a spiral arrangement of tracks, each possessing a fixed number of sectors, and supporting continuous accessing of successive tracks.

REFERENCES:
patent: 5619387 (1997-04-01), Ottesen et al.
patent: 6073189 (2000-06-01), Bounsall et al.
patent: 6091686 (2000-07-01), Caffarelli et al.

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