Tracking servo system for magnetic recording and reproducing app

Details Tracking servo system for magnetic recording and reproducing app Tracking servo system for magnetic recording and reproducing app

1982-08-11

1985-11-05

Cardillo, Jr., Raymond F.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360121, 360 78, G11B 2110, G11B 527

Patent

active

045517770

ABSTRACT:
A tracking servo system for a magnetic recording and reproducing apparatus uses a flexible magnetic disk having thereon at least first, second and third tracks each of which includes a data track portion and a pair of servo track portions located on both sides of the data track portion. Tracking signals having different frequencies are recorded on the first, second and third servo track pairs. Servo and data heads are formed in a unitary structure. When the data head records an information signal on the second data track portion or reads out the recorded information signal therefrom, the servo head reads out the tracking signals recorded on the first and third servo track portions.

REFERENCES:
patent: 3263031 (1966-07-01), Welsh
patent: 3292168 (1966-12-01), Gray
patent: 3491347 (1970-01-01), Farrand
patent: 4056832 (1977-11-01), de Boer et al.
patent: 4149198 (1979-04-01), Behr et al.
patent: 4164781 (1979-08-01), Brown
patent: 4297733 (1981-10-01), Sanderson

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