Production of properly oriented copies of transparent masters

Details Production of properly oriented copies of transparent masters Production of properly oriented copies of transparent masters

1991-09-13

1994-04-05

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Facsimile measuring, testing, or calibrating

358444, 358487, 358302, H04N 104, H04N 121, H04N 123, H04N 1387, G01B 528

Patent

active

053010345

ABSTRACT:
A transparent master is mechanically sensed to detect the emulsion. The master is then advanced into a projection arrangement where a scanner scans the master point-by-point and line-by-line to generate signals containing data on the master. The signals are entered in a memory and electronically enhanced. The enhanced signals are sent to a cathode ray tube which produces a printing beam responsive to the signals. The printing beam prints an image of the master on copy material. If sensing of the emulsion indicates that the master is inverted, the image of the master is electronically inverted in the projection arrangement to thereby obtain a normal copy. The electronic inversion can be accomplished in any one of several ways as follows: (i) reversing the order in which the signals are generated by the scanner; (ii) reversing the order in which the signals are entered in the memory; (iii) reversing the order in which the signals are retrieved from the memory; or (iv) reversing the direction of movement of the printing beam.

REFERENCES:
patent: 3934081 (1976-01-01), Schumacher
patent: 4106333 (1978-08-01), Salje et al.
patent: 4659213 (1991-04-01), Matsumoto
patent: 4765181 (1988-08-01), Numoto et al.
patent: 4776212 (1988-10-01), Parsons et al.
patent: 4888984 (1989-12-01), Marumo et al.
patent: 5001513 (1991-03-01), Tokuda
patent: 5092676 (1992-03-01), Harata et al.

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