Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1988-06-02
1989-09-26
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 552
Patent
active
048705225
ABSTRACT:
A device for providing rotary electric coupling for a recorder/reader of magnetic tape including at least one magnetic head (21, 22) which is rotated at the periphery of an equatorial slot in a cylindrical drum over which the helically wound tape is caused to run. Said device is intended to transmit electrical signals representative of information recorded on or read from said tape, between a rotor-forming rotating portion connected to the head and a stator-forming stationary portion connected to electronic means respectively for emitting and/or receiving said information. The device further includes a two-plate capacitor (29, 42) for each of its heads (21, 22), said capacitor plates being disposed facing each other in pairs and one plate in each pair being fixed to the rotor and the other to the stator.
REFERENCES:
patent: 4364098 (1982-12-01), Hirota et al.
patent: 4497004 (1985-01-01), Shibata
Asman Sanford J.
Schlumberger Industries
Tupper Robert S.
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