Apparatus for making a screen reproduction of an image

Facsimile and static presentation processing – Facsimile – Recording apparatus

Patent

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Details

358299, H04N 586, G11B 708

Patent

active

040125840

ABSTRACT:
In apparatus for making a half-tone reproduction of an image and having a row of light source elements which together expose a line across a component screen area of a film to be exposed, screen-representing signals are electronically generated when pulses exist in corresponding locations of a pair of shift register devices having trains of pulses moving in opposite directions. Each shift register device may comprise a pair of shift registers having trains of pulses moving in the same direction, the relative phase of the pulse trains in the two shift registers varying with the picture signal.

REFERENCES:
patent: 3657472 (1972-04-01), Taudt
patent: 3725574 (1973-04-01), Gast
patent: 3767850 (1973-10-01), McMillian
patent: 3795013 (1974-02-01), McKinley
patent: 3878559 (1975-04-01), Dugsley
patent: 3886308 (1975-05-01), Costello

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