Banded magnetic recording disk with equally-angularly-spaced ser

Details Banded magnetic recording disk with equally-angularly-spaced ser Banded magnetic recording disk with equally-angularly-spaced ser

1995-06-07

1996-06-11

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Record medium

Disk

360 48, 360 7708, G11B 582, G11B 509, G11B 5596

Patent

active

055262112

ABSTRACT:
A method and means is described wherein servo sectors written on a disk (or servo sections written on a tape) are 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 (or sections) on a track and lengths of associated data sections, such as data sectors or variable length records, that may be accommodated on the disk or tape in such manner that each of the servo sectors (or sections) equally spaced on a given track is located within a data field of a data sector or within an identification region or immediately after an address indicating mark (such as address mark or index mark). The rate at which the servo sector (or section) is 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 CLD recording, to banded disks using sectored servo as in conventional FBA, and also even to non-sectored architectures, such as count-key-data (CKD), wherein the data is written in records of variable length, and to tape drives formatted in FBA or CKD.

REFERENCES:
patent: 3185972 (1965-05-01), Sippel
patent: 3662353 (1972-05-01), Chertok
patent: 3701846 (1972-10-01), Zenzefilis
patent: 3994016 (1976-11-01), Moghadam
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), Weispfenning et al.
patent: 5121280 (1992-06-01), King
patent: 5134601 (1992-07-01), Greenwell et al.
patent: 5136439 (1992-08-01), Weispfenning 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
patent: 5440474 (1995-08-01), Hetzler
Brett Smith, "Servo Zones Embedded in Data Tracks Solve Old, But Create New Problems", Spring 1988, pp. 45, 46, 48.

Affiliated with

Also associated with

Rating

Banded magnetic recording disk with equally-angularly-spaced ser does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Banded magnetic recording disk with equally-angularly-spaced ser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Banded magnetic recording disk with equally-angularly-spaced ser will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-357762