Tracking servo control for disc drive

Details Tracking servo control for disc drive Tracking servo control for disc drive

1988-10-27

1990-06-05

Faber, Alan

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 5596

Patent

active

049318888

ABSTRACT:
A tracking servo for a floppy disc drive or the like employs a plurality of servo tracks recorded between adjacent data tracks on the floppy discs, with the signals from adjacent servo tracks on both sides of a data track being used to define the difference between the position of the magnetic head and the center line of the data track being accessed, and an adder is used to add the current position of the head to the product of such difference multiplied by a constant, with the sum delayed by the period of one rotation for comparison with the current position of the head, to derive a tracking control signal.

REFERENCES:
patent: 4412165 (1983-10-01), Case et al.
patent: 4536809 (1985-09-01), Sidman
patent: 4594622 (1986-06-01), Wallis
patent: 4788608 (1988-11-01), Tsujisawa

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