Magnetic storage medium containing at least two different popula

Details Magnetic storage medium containing at least two different popula Magnetic storage medium containing at least two different popula

1990-09-05

1992-07-28

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of inorganic material

428694, 427128, 252 6256, G11B 500

Patent

active

051340410

ABSTRACT:
In order to be able to improve the level or the dynamic ratio and the signal-to-noise ratio of a magnetic storage medium for analog signal recording, with the distortion factor remaining the same, certain rules are formulated for the quality of the magnetic particles in the storage medium. According to these rules the particles shall be of at least two kinds, all particles of one kind having the same structure. Furthermore, the distribution curve (9) which specifies how many particles possess a certain coercive field strength shall be broadened in the range (20) of the most frequent coercive field strength (H.sub.c9), as compared to a Gaussian distribution.

REFERENCES:
patent: 3653962 (1972-04-01), Akashi et al.
patent: 4259392 (1981-03-01), Suzuki
patent: 4281043 (1981-07-01), Deffeyes
patent: 4500599 (1985-02-01), Ogawa et al.

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