Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1998-07-07
2000-07-04
Cao, Allen T.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 552
Patent
active
060847514
ABSTRACT:
In a magnetic recording/reproducing apparatus, a power circuit is provided with a transformer having a core with a gap being formed in it, the transformer being positioned so that a direction for connecting a S pole with a N pole created by the leakage magnetic flux from the gap of the core, and a direction for connecting a central portion of the cylinder, where the magnetic head is provided, with the central portion of the gap of the core is substantially normal, and the cylinder and the transformer are positioned at a distance so that a reading signal read by the magnetic head is hardly influenced by the leakage magnetic flux.
REFERENCES:
patent: 5053881 (1991-10-01), Campisi
patent: 5094513 (1992-03-01), Fukuda
patent: 5654778 (1997-08-01), Higuchi et al.
Panasonic PV-1230 Service Manual. (Figs. on pp. 5-7 of vol. 5+2; the 2 Items About Transformer Products on p. 104; Items in 2 are in English on Lower Right Half of the Same Page).
Cao Allen T.
Funai Electric Co. Ltd.
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