Dynamic magnetic information storage or retrieval – Recording on or reproducing from an element of diverse utility – Card
Patent
1976-03-26
1977-07-26
Lucas, Jay P.
Dynamic magnetic information storage or retrieval
Recording on or reproducing from an element of diverse utility
Card
352 26, 360 63, 360 82, G11B 5008, G11B 2344
Patent
active
040386910
ABSTRACT:
Means providing stationary images have associated therewith sound related to each of the images. A plural number of non-translatable magnetic heads are used in conjunction with a control circuit so as to extend the recording time by enabling the recording or reproducing of independent sound tracks, one sound track per head, and switching such heads in sequence at end of each record or reproduce period. The control circuit may be electronic or electromechanical.
REFERENCES:
patent: 2924668 (1960-02-01), Hoshino
patent: 3248717 (1966-04-01), Mayhew
patent: 3271777 (1966-09-01), Davis
patent: 3315041 (1967-04-01), Sampson
patent: 3332319 (1967-07-01), Gerry
patent: 3751151 (1973-08-01), Petterson
patent: 3790265 (1974-02-01), Ogiso
patent: 3891830 (1975-06-01), Goldman
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