Automatic scan tracking using an additional sensing means on a b

Details Automatic scan tracking using an additional sensing means on a b Automatic scan tracking using an additional sensing means on a b

1976-03-19

1979-08-21

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360107, 360109, G11B 552, G11B 2110, G11B 2118

Patent

active

041655230

ABSTRACT:
A magnetic head supported for scanning along tracks of a magnetic medium is mounted on a piezoelectric bender element for movement laterally relative to the tracks as they are scanned. As the head scans a track, the relative position between the track to be reproduced and the head is sensed to determine the tracking position of the heads. A bias control signal is generated by a servo circuit and applied to energize the piezoelectric bender element to position the head relative to the track to maintain the head in the desired tracking position as it scans the magnetic medium.

REFERENCES:
patent: 3126535 (1964-03-01), Streeter
patent: 3526726 (1970-09-01), Corbett et al.
patent: 3636252 (1972-01-01), Kowal
patent: 3787616 (1974-01-01), Falk et al.
IBM Tech. Disc. Bulletin, G.E. Price, Videotape Recorder with Oscillating Head, vol. 12, No. 1, Jun. 1969, pp. 33-34.

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