Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1982-03-12
1983-10-04
Britton, Howard
Facsimile and static presentation processing
Facsimile
Recording apparatus
358166, H04N 140, H04N 514
Patent
active
044082339
ABSTRACT:
A method and apparatus for accentuating the features of a monochrome image reproduced by means of a digital transcription.
The apparatus includes an analog portion disposed between the digital-to-analog converter DAC (5) and an analog-to-digital converter (15) with analog sampling units (6,7), comparators (10,11,12), a subtractor (9) an amplifier (13) and a limiter to select and calculate the corrective term depending on the difference and on the digital processing means (17,18,19 and 20) to add the corrective terms to the numbers of the digital transcription.
REFERENCES:
patent: 3536826 (1978-10-01), McMann
patent: 3814847 (1974-06-01), Longuet
patent: 3996421 (1976-12-01), Pruznick
patent: 4091420 (1978-05-01), Omori
patent: 4210936 (1980-07-01), Cinque
patent: 4258394 (1981-03-01), Kennedy
patent: 4360830 (1982-11-01), Poetsch
patent: 4365304 (1982-12-01), Ruhman
Rundfunktechnische Mitteilungern vol. 10 No. 5, Oct. 1966, Hamburg (DE) P. Martinez and al: "Neue Schaltungen fur Eine Plumbicon"* Studiokamara (Schwarzweiss)", pp. 247-250 *pp. 249, 250, para 3*.
Decuyper Jean-Claude
Nahon Richard
Britton Howard
Societe Anonyme dite Compagnie Industrielle des Telecommunicatio
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