Magnetic recording device with rotating head

Details Magnetic recording device with rotating head Magnetic recording device with rotating head

1986-07-28

1988-12-13

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 2104

Patent

active

047915145

ABSTRACT:
The magnetic recording device with rotating head according to the invention comprises a magnetic recording medium, a cylindrical and rotating head, a fixed magnetic excitation circuit; the head comprising, on its surface, two movable pole pieces separated by a gap and each magnetically linked to an initial and a second magnetic circuit in the shape of a portion of a ring and providing a rotating joint to the passage of the magnetic flux, with the fixed, magnetic excitation circuit possessing an excitation coil that induces an magnetic field in a magnetic circuit having two fixed pole pieces, each magnetically coupled by a gap to one of the said rings.
Application: Video tape recorders in particular.

REFERENCES:
patent: 2800384 (1957-07-01), Parker
patent: 2909616 (1959-10-01), Marty
patent: 3081381 (1963-03-01), Merry

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