Method and apparatus for recording latent images for magnetograp

Details Method and apparatus for recording latent images for magnetograp Method and apparatus for recording latent images for magnetograp

1978-02-03

1979-07-17

Lucas, Jay P.

Recorders

Magnetographic

358301, 360 41, G03G 1900, G11B 509

Patent

active

041617380

ABSTRACT:
Disclosed is a method wherein, in order to prevent background stains in the conventional NRZ system latent image recording method for Magnetography, the latent image recording is effected in such a manner that, in response to a black color representation signal, the direction of the magnetizing field along a generated magnetizing track is periodically reversed, while in response to a white color representation signal, a saturation magnetizing field of a uniform predetermined polarity is applied to adjacent tracks lying in a white region of the signal.

REFERENCES:
patent: 3012232 (1961-12-01), Eckert
patent: 3823405 (1974-07-01), Andreaggi
patent: 3986190 (1976-10-01), Schwabe
patent: 4072957 (1978-02-01), Kokaji

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