Recorders – Magnetographic
Patent
1975-04-02
1976-10-12
Lucas, Jay P.
Recorders
Magnetographic
340174TA, G03G 1900
Patent
active
039861902
ABSTRACT:
A system for generating magnetic images has a recording head positioned opposite the surface of a recording member such as a magnetic tape or drum. The head carries at least two layers of separate meandering electrical conductors. The conductors in each layer are arranged so that segments thereof overlap at a multiplicity of discrete points on the head with each such point being defined by a selected pair of conductors, one from each layer. When current is applied to a selected conductor pair, a magnetic field is generated at the corresponding point on the head which is strong enough to magnetize the area of the recording medium opposite that point. Thus, when selected conductor pairs in the head are energized in accordance with an input pattern using suitable addressing techniques, a corresponding latent pattern is magnetically impressed on the recording medium. Then a suitable magnetic ink or toner is applied to the recording medium, reducing the latent image to a visible form suitable for transfer to paper or the like.
REFERENCES:
patent: 2736880 (1956-02-01), Forrester
patent: 3023402 (1962-02-01), Bittmann
patent: 3030612 (1962-04-01), Rubens
patent: 3058100 (1962-10-01), Hagopian
patent: 3084336 (1963-04-01), Clemons
patent: 3161544 (1964-12-01), Berry
patent: 3185777 (1965-05-01), Rheinfrank
patent: 3456250 (1969-07-01), Barcaro
patent: 3662361 (1972-05-01), Mee
Came Donald M.
Schwabe Eberhard A.
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