System and method of locating the center of a track on a magneti

Details System and method of locating the center of a track on a magneti System and method of locating the center of a track on a magneti

1982-08-12

1984-11-27

Stellar, George G.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

G11B 556, G11B 2110

Patent

active

044854188

ABSTRACT:
A system and method of accurately locating the center of a previously recorded magnetic track on a rotating magnetic storage disk and moving a transducer to the center of the track. The system measures in increments the amplitude of the feedback signal as the transducer is moved to each side of the recorded track and compares the signal amplitude measured with a predetermined reference level. Through the use of an offset measuring system connected to a computer processor the number of increments moved in each direction is recorded and a simple calculation is made to determine the center of the magnetic track. The transducer for recording and replaying information on the disk is then moved to the center of the track.

REFERENCES:
patent: 4157577 (1979-06-01), Porter, Jr. et al.
patent: 4371960 (1983-02-01), Kroiss

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