Multiple magnetic head rotary transducer drum for simultaneous r

Details Multiple magnetic head rotary transducer drum for simultaneous r Multiple magnetic head rotary transducer drum for simultaneous r

1984-12-31

1987-05-26

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Signal switching

360 84, 360 31, G11B 509, H04N 5782

Patent

active

046690026

ABSTRACT:
A magnetic recorder/reproducer includes a rotary drum supporting first and second playback heads and first and second recording heads for reading information from and writing information in a tape running obliquely to a plane in which the heads rotate, the first playback head, the first recording head, the second playback head, and the second recording head being arranged in the order named in a direction in which the heads rotate, the recording heads being positioned on the rotary drum at a height different from the height at which the playback heads are positioned on the rotary drum, the arrangement being such that while information recorded in a given track on the tape is being reproduced by the ith (i=1, 2) playback head, information is recorded on the same track by the ith recording head. The recording and playback heads are switched over each time the rotary drum makes a half rotation at switching timings that are .pi./2 out of phase.

REFERENCES:
patent: 3051777 (1962-08-01), Lemelson
patent: 3457557 (1969-07-01), Storey
patent: 4197562 (1980-04-01), Kikuya et al.
patent: 4389680 (1983-06-01), Gramling
patent: 4480274 (1984-10-01), Coleman, Jr.
patent: 4535367 (1985-08-01), Kanda

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