Home track position acquisition system and method

Details Home track position acquisition system and method Home track position acquisition system and method

1986-11-13

1988-07-26

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 70, 360 73, G11B 5588, G11B 2110

Patent

active

047604751

ABSTRACT:
A system and method are described for aligning a set of tracks which have been recorded simultaneously on a magnetic medium by a multichannel transducer mounted in a rotating scanner, with transducing channels of a corresponding multichannel transducer for reproduction. A scan identifier signal is recorded simultaneously by a rotating multichannel transducer at a predetermined location along each track. Means are provided for reproducing and summing simultaneously accessed scan identifier signals during consecutive scans of the multichannel transducer over the medium. The relative position of the recorded medium to the rotating multichannel transducer is changed in a direction across the length of the tracks. That relative position in which the largest amplitude of the summed scan identifier signals is obtained corresponds to the desired alignment with the set of tracks.

REFERENCES:
patent: 3925816 (1975-12-01), Kihara
patent: 4127881 (1978-11-01), Wakami et al.
patent: 4484236 (1984-11-01), Wilkinson
patent: 4525750 (1985-06-01), Hamalainen
patent: 4563710 (1986-01-01), Baldwin
patent: 4597023 (1986-06-01), Rijckaert
patent: 4638379 (1987-01-01), Teshima
patent: 4672470 (1987-06-01), Morimoto et al.

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