Circuit arrangement for the slow, constant forward or reverse mo

Details Circuit arrangement for the slow, constant forward or reverse mo Circuit arrangement for the slow, constant forward or reverse mo

1977-06-13

1979-04-24

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 556

Patent

active

041515684

ABSTRACT:
A circuit arrangement provides a slow, constant forward or reverse movement of the write/read heads in a cylinder memory and includes a regulating circuit which comprises a track difference register, a digital/analog converter connected to the track difference register, an arrangement for providing a sign for the analog signal, and a function generator for receiving the analog signal. In the digital portion of the regulating circuit one or more of the low-value bits is activated in order to produce a slow, constant speed of the write/read heads.

REFERENCES:
patent: 3427606 (1969-02-01), Black et al.
patent: 3812533 (1974-05-01), Kimura et al.
patent: 3994016 (1976-11-01), Moghadam

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