Magnetic recording method involving core pieces of different thi

Details Magnetic recording method involving core pieces of different thi Magnetic recording method involving core pieces of different thi

1986-10-22

1989-04-11

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Specifics of biasing or erasing

360119, 360118, G11B 5187

Patent

active

048211265

ABSTRACT:
Based on the fact that the recording track width depends on the width of a core at the trailing side relative to the moving direction of magnetic recording medium, narrower track recording and wider track erasing, or a two-mode recording operation either for high-density recording or normal-density recording are realized using a single magnetic head having a narrower core and a wider core opposing to each other through a gap by changing the moving direction of the magnetic recording medium relative to the magnetic head.

REFERENCES:
patent: 2468782 (1949-05-01), Ross et al.
patent: 2987582 (1961-06-01), Naiman
patent: 3373249 (1968-03-01), Schager
patent: 3668332 (1972-06-01), Anderson
patent: 4405959 (1983-09-01), Chabrolle

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