Operator selectable multiple gradation scanner and engraver appa

Details Operator selectable multiple gradation scanner and engraver appa Operator selectable multiple gradation scanner and engraver appa

1985-02-05

1987-06-09

Goldberg, E. A.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358283, 358284, H04N 122, H04N 140

Patent

active

046724664

ABSTRACT:
A system for optically scanning copy and engraving a printing plate, having a carrier for a plurality of sets of copy and a plurality of optical scanners, one for each set of copy, a scanner having an electrical signal output representing the scanned copy, a plurality of engravers one for each of said scanners, responsive to an input signal to engrave the printing plate to produce copy, an improvement wherein a circuit interconnects the output of each scanner with the input of the associated engraver, a circuit having a plurality of transfer functions, each transfer function matching a characteristic of the set of copy scanned by said scanner, and means are included for selecting for each scanner and associated engraver one of the plurality of transfer functions for said circuit.

REFERENCES:
patent: 2813925 (1957-01-01), Farber
patent: 4245260 (1981-01-01), Doelves
patent: 4422101 (1983-12-01), Takei
patent: 4484232 (1984-11-01), Gast

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