Magnetic erasing head

Details Magnetic erasing head Magnetic erasing head

1983-12-22

1986-11-11

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Erase

360 66, 360121, G11B 527

Patent

active

046226141

ABSTRACT:
A magnetic erasing head of a double effective gap type which has gaps different in width to each other, includes a magnetic center core having a predetermined width positioned between the gaps and a winding for inducing a magnetic flux. An erasing signal is supplied to the winding, and a wavelength of the erasing signal having a predetermined relationship relative to a width of the magnetic center core.

REFERENCES:
patent: 4180835 (1979-12-01), Okumura et al.
patent: 4205356 (1980-05-01), Tanaka et al.

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