Disk with fault-tolerant sample-data servo pattern

Details Disk with fault-tolerant sample-data servo pattern Disk with fault-tolerant sample-data servo pattern

1995-11-01

2000-09-12

Loomis, Paul

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

360 7708, 360 814, G11B 509, G11B 5596

Patent

active

061186031

ABSTRACT:
A headerless, fault-tolerant sample-data servo pattern, comprising an alternating sequence of first and second servo sectors, with the first servo sectors each including a partial track address and circumferential orientation information, and the second servo sectors each including a full track address, provides an absolute indication of a read/write head's circumferential orientation along a given track on a magnetic disk which is robust in the presence of defects in the magnetic recording medium.

REFERENCES:
patent: 4459232 (1985-10-01), Axmear et al.
patent: 4933786 (1990-06-01), Wilson
patent: 5038232 (1991-08-01), Grace
patent: 5255131 (1993-10-01), Coker et al.
patent: 5455721 (1995-10-01), Nemazie et al.
patent: 5459623 (1995-10-01), Blagaila et al.
patent: 5760983 (1998-06-01), Cowen
patent: 5835303 (1998-11-01), Morehouse et al.
B. McKnight, "A Track Locating Servo System Utilizing the Data Heads as Absolute Position Transducers", Jul. 1978, IEEE Transactions on Magnetics, vol. MAC-14, No. 4, pp. 182-187.

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