Method of controlling the position of a write-read head and devi

Details Method of controlling the position of a write-read head and devi Method of controlling the position of a write-read head and devi

1979-01-24

1980-12-02

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 78, G11B 2110

Patent

active

042375002

ABSTRACT:
A method and apparatus for controlling the position of write-read heads with which information is recorded in a plurality of parallel tracks on a record carrier. In accordance with the invention a tracking signal is recorded in at least selected tracks during a first time interval. When the next track is written the supply of write signals to the write-read heads is interrupted for a second time interval, the first and second time intervals being selected in such a way that the track portions corresponding to said two time intervals adjoin each other. During the second time interval the cross-talk signal produced in the write-read head by the recorded tracking signal is measured and employed to produce a control signal for positioning the write-read heads.

REFERENCES:
patent: 4141047 (1979-02-01), Kambara et al.
patent: 4141048 (1979-02-01), Kubota et al.
patent: 4143405 (1979-03-01), Kubota

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