Magnetic recording apparatus for positioning magnetic head to tr

Details Magnetic recording apparatus for positioning magnetic head to tr Magnetic recording apparatus for positioning magnetic head to tr

1989-01-05

1991-01-15

Wolff, John H.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360106, 360 7712, G11B 555

Patent

active

049857878

ABSTRACT:
The magnetic recording apparatus according to the present invention is arranged such that its magnetic head is discretely shifted a pluarlity of times during one revolution of its magnetic tape so that continuous recording or reproduction is performed on a spiral track when the magnetic tape is viewed broadly and it includes a detector portion for detecting a mark every revolution of the magnetic tape so that the start position of a carrier motor is adjusted by the detected signal, and thereby it is achieved to have the tracking accuracy enhanced with an economical structure. Further, the motor for the tape drive portion and the carrier motor are arranged to be independent of each other, so that the angle of rotation of the carrier motor at a time can be increased and the carrier together with the magnetic head can be shifted to a desired track position of a high speed.

REFERENCES:
patent: 3979773 (1976-09-01), Sawazaki et al.
patent: 4303953 (1981-12-01), Sanderson
patent: 4313143 (1982-01-01), Zarr
patent: 4333116 (1982-06-01), Schoettle et al.
patent: 4378575 (1983-03-01), Komatsu et al.
patent: 4394696 (1983-07-01), Yoshimaru
patent: 4446492 (1984-05-01), Yoshimaru
patent: 4468712 (1984-08-01), Mueller et al.

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