Magnetic head controlling apparatus

Details Magnetic head controlling apparatus Magnetic head controlling apparatus

1984-05-18

1986-11-11

Stellar, George G.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 555

Patent

active

046226044

ABSTRACT:
A controlling apparatus for achieving velocity control in the course of a seeking operation of the magnetic head includes an intended address register for storing intended track addresses. A microprocessor calculates the intended moving distance of the head on the basis of an intended track address applied from the intended address register and track pulses applied from a track detector circuit every time the head crosses a track on the magnetic disk. On the other hand, previously stored in a memory are plural kinds of velocity tables consisting of plural kinds of intended velocity data which correspond to the intended moving distance of the head. The microprocessor reads and sets from the memory appropriate intended velocity data which corresponds to the intended and calculated moving distance of the head. The head is moved by a carriage and performs its seeking operation at an appropriate velocity on the basis of the intended velocity data set by the microprocessor.

REFERENCES:
patent: 4031443 (1977-06-01), Droux et al.
patent: 4096579 (1978-06-01), Black et al.
patent: 4272793 (1981-06-01), Van Landingham

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