Dynamic magnetic information storage or retrieval – Head – Core
Patent
1976-01-26
1977-06-07
Grieb, William H.
Dynamic magnetic information storage or retrieval
Head
Core
360 2, 360101, G09B 504, G11B 2102, G11B 2504
Patent
active
040274055
ABSTRACT:
A device having a slot in which removable-insertable flash cards or flexible tape are placed. On the face of the cards or flexible tape are placed, singly or in any combination, braille letters, braille words, printed matter and pictures. On the same face of the cards or flexible tape are placed lengthwise strips of magnetic tape, flexibly held to facilitate maximum utilization of the wavelength "reading" ability of a magnetic head. In alignment with the magnetic tape on an inserted card or flexible tape is a record-reproduce magnetic head. The cards and flexible tape are disposed horizontally in the preferred embodiment to facilitae learning braille. Said head is mechanically driven with uniform and reciprocal motion over the length of magnetic tape, on rods. Amplifier and control means allow the same head to record potential audio messages and also to reproduce said audio messages.
REFERENCES:
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patent: 2677200 (1954-05-01), MacChesney
patent: 2849542 (1958-08-01), MacChesney
patent: 3255537 (1966-06-01), Cole et al.
patent: 3289326 (1966-12-01), Bender
patent: 3307274 (1967-03-01), Glaser
patent: 3412483 (1968-11-01), Jacobs
patent: 3488867 (1970-01-01), Lyon et al.
patent: 3628257 (1971-12-01), Budrose
patent: 3800315 (1974-03-01), Budrose
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