Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head
Patent
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
Dahill Edward Kevin
Howes, Jr. Ronald Bruce
Control Data Corporation
Eddleman Alfred H.
McGinnis, Jr. William J.
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