Servo positioning error control for magnetic disk file

Details Servo positioning error control for magnetic disk file Servo positioning error control for magnetic disk file

1975-04-21

1976-03-30

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 77, G11B 558, G11B 2108, G11B 1914

Patent

active

039478815

ABSTRACT:
In a magnetic disk file head positioning control system, the servo loop controlling the fine positioning of magnetic heads for a particular head track is responsive to a servo error signal. The servo error signal consists of a low pass filtered head position error signal summed with a pseudo velocity signal derived from the same head position error signal.

REFERENCES:
patent: 3246307 (1966-04-01), Stanley
patent: 3534344 (1970-10-01), Santana
patent: 3737883 (1973-06-01), Sordello et al.
patent: 3864740 (1975-02-01), Sordello et al.
patent: 3883894 (1975-04-01), Johnson

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