Dynamic magnetic information storage or retrieval – Record transport with head moving during transducing – Tape record
Patent
1985-10-02
1987-11-24
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head moving during transducing
Tape record
360 70, 360 84, G11B 5584, G11B 1520, G11B 1561
Patent
active
047092807
ABSTRACT:
Apparatus for recording and reading information on a magnetic tape, comprising heads rotating in the median plane of a drum (38) against which the tape can pass over a helical path (11). Means are provided for modifying the pitch of the helical path (11) of the tape, such as two movable rollers (55, 56) disposed respectively downstream and upstream of the drum (38), separated by a fixed difference in height and adapted to move in such a manner as to vary the length of the portion of tape connecting them without varying said difference in height.
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patent: 3697676 (1972-10-01), Protas
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patent: 4275424 (1981-06-01), Maxey
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IBM Technical Disclosure Bulletin, vol. 17, No. 4 (p. 1188).
IBM Technical Disclosure Bulletin, vol. 18, No. 12 (pp. 3931-3934).
Enertec
Gaudier Dale
Tupper Robert S.
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