Recorders – Magnetographic
Patent
1986-01-02
1987-02-24
Goldberg, E. A.
Recorders
Magnetographic
346 743, 346 745, 346139C, G11B 900, G01D 1516
Patent
active
046461078
ABSTRACT:
An XY plotter apparatus includes a magnetic panel, a writing tool for applying a magnetic field, a writing tool drive and an erasing magnetic field generator. The writing tool consists of an electromagnet which is arranged so that specified characters and figures may be displayed at a high speed on a magnetic panel by the writing tool. Data of a figure to be displayed is inputted into the writing tool drive so as to generate signals for position control and a signal for actuating a switch for a coil inside the electromagnet.
REFERENCES:
patent: 3591939 (1971-07-01), Payne et al.
patent: 3968498 (1976-07-01), Uchiyama
patent: 4288936 (1981-09-01), Okutsu
patent: 4380768 (1983-04-01), Palombo et al.
patent: 4536770 (1985-08-01), Allen et al.
T. M. Berry and J. P. Hanna, "Ferromagnetography-High Speed; General Electric Review, Jul. 1952, pp. 20-22, 61.
Ikeda Masahiko
Shimizu Takanori
Goldberg E. A.
Peco Linda M.
Pilot Man-nen Hitsu Kabushiki Kaisha
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