Magnetic recording disk with equally-spaced servo sectors extend

Details Magnetic recording disk with equally-spaced servo sectors extend Magnetic recording disk with equally-spaced servo sectors extend

1993-11-10

1995-08-08

Young, W. R.

Dynamic magnetic information storage or retrieval

Record medium

Disk

360 48, 360 7708, 369 4426, 3692753, G11B 509, G11B 5596

Patent

active

054404746

ABSTRACT:
A magnetic recording disk has servo sectors that are generally equally spaced on a given track and read during seek, settle, and track-following operations. An algorithm is used to determine the allowable time separation between servo sectors on a track and lengths of associated data sections that may be accommodated on the disk. In such a manner, the servo sectors are equally spaced on a given track and may be located within a data field of a data sector, within an identification region, or immediately after an address indicating mark (such as an address mark or an index mark). The rate at which the servo sectors are sampled is constant and independent of the number and lengths of the data sections. As a result of this independent relationship, this technique is suitable for a banded recording disk using sectored servo. The banded magnetic recording disk with multiple radially-spaced data bands has generally equally angularly-spaced servo sectors extending across the bands to provide a constant servo sample rate independent of the data rate.

REFERENCES:
patent: 3185972 (1961-10-01), Sippel
patent: 3662353 (1972-05-01), Chertor
patent: 3701846 (1972-10-01), Zenzefilis
patent: 3994016 (1976-11-01), Moguadam
patent: 4001883 (1977-01-01), Strout et al.
patent: 4016603 (1977-04-01), Ottesen
patent: 4094013 (1978-06-01), Hill et al.
patent: 4134138 (1979-01-01), Cardot et al.
patent: 4135217 (1979-01-01), Jacques et al.
patent: 4175270 (1979-11-01), Zenzefilis
patent: 4322759 (1982-03-01), Zenzefilis
patent: 4377827 (1983-03-01), Rose
patent: 4388655 (1983-06-01), Zenzefilis
patent: 4589037 (1986-05-01), Jen et al.
patent: 4630140 (1986-12-01), Sugimura et al.
patent: 4692821 (1987-09-01), Zenzefilis
patent: 4714967 (1987-12-01), Bizjak
patent: 4823212 (1989-04-01), Knowles et al.
patent: 4841498 (1989-06-01), Sugimura et al.
patent: 4851933 (1989-07-01), Sugaya et al.
patent: 4858034 (1989-08-01), Hassel et al.
patent: 4873679 (1989-10-01), Murai et al.
patent: 4933786 (1990-06-01), Wilson
patent: 4964009 (1990-10-01), Moriya et al.
patent: 5070421 (1991-12-01), Sumiya et al.
patent: 5073834 (1991-12-01), Best et al.
patent: 5117408 (1992-05-01), Weispfennig et al.
patent: 5121280 (1992-06-01), King
patent: 5134601 (1992-07-01), Greenwoll et al.
patent: 5136439 (1992-08-01), Weispfennig et al.
patent: 5140683 (1992-08-01), Gallo et al.
patent: 5157670 (1992-10-01), Kowal
patent: 5170299 (1992-12-01), Moon
patent: 5196970 (1993-03-01), Seko et al.
patent: 5210660 (1993-05-01), Hetzler
patent: 5241546 (1993-08-01), Peterson et al.
patent: 5255136 (1993-10-01), Machado et al.
patent: 5258933 (1993-11-01), Johnson et al.
patent: 5260703 (1993-11-01), Nguyen et al.
patent: 5285327 (1994-02-01), Hetzler
patent: 5305302 (1994-04-01), Hardwick
Brett Smith, "Servo Zones Embedded in Data Tracks Solve Old, But Create New Problems", Spring 1988, pp. 45, 46, 48.

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