Track seeking and following

Details Track seeking and following Track seeking and following

1975-12-23

1977-10-04

Kilgore, Robert M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

340173LM, G11B 2110, G11B 5012

Patent

active

040527417

ABSTRACT:
A servo sector record track location pattern provides both seeking and following capability. The durations of servo signals within a servo sector uniquely identify track location lines within a band of such track location lines. A first-appearing servo signal pattern always provides full amplitude readback signals for normalizing track following operations. Subsequently appearing servo signal patterns yield an amplitude representative of energy content which is comparable with the signal amplitude and energy content of the first-appearing servo signal for yielding track position error signals. Apparatus for employing the novel servo pattern is also disclosed.

REFERENCES:
patent: 3185972 (1965-05-01), Sippel
patent: 3812533 (1974-05-01), Kimura
patent: 3838457 (1974-09-01), Palmer
patent: 3919697 (1975-11-01), Walker
patent: 3994016 (1976-11-01), Moghadam

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