Devices and methods for offset and similar printing systems

Details Devices and methods for offset and similar printing systems Devices and methods for offset and similar printing systems

1998-02-20

2000-12-19

Lee, Thomas D.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358456, H04N 140

Patent

active

061633828

ABSTRACT:
A method for producing a half-tone image faithfully representing a continuous-tone original includes a step of forming in the image a pattern of substantially continuous, substantially parallel lines at a frequency of between about 100 and 400 lines per inch, such that the width of the lines at a given point in the image varies in relation to the optical density of at least one color component at a corresponding point in the continous-tone original. The method may be used for color separations with each separation produced by scanning at a different angle. The method may be implemented using photomechanical or electronic scanning techniques.

REFERENCES:
patent: 498396 (1893-05-01), Kurtz
patent: 2914407 (1959-11-01), Meyer
patent: 3152528 (1964-10-01), Pendry
patent: 3332775 (1967-07-01), Mandler
patent: 3657472 (1972-04-01), Taudt et al.
patent: 3916096 (1975-10-01), Everett et al.
patent: 3928038 (1975-12-01), Bergin
patent: 3948171 (1976-04-01), O'Connell
patent: 3983319 (1976-09-01), Moe et al.
patent: 4003649 (1977-01-01), Goren et al.
patent: 4007981 (1977-02-01), Goren
patent: 4081828 (1978-03-01), Jones et al.
patent: 4084183 (1978-04-01), Keller et al.
patent: 4142462 (1979-03-01), Gilgore
patent: 4236809 (1980-12-01), Kermisch
patent: 4262070 (1981-04-01), Liu
patent: 4543613 (1985-09-01), Sakamoto
patent: 4547812 (1985-10-01), Waller et al.
patent: 4598040 (1986-07-01), Netz et al.
patent: 4700235 (1987-10-01), Gall
patent: 4768101 (1988-08-01), Webb
patent: 4800442 (1989-01-01), Riseman
patent: 4903123 (1990-02-01), Kawamura et al.
patent: 4987498 (1991-01-01), Shimazaki
patent: 5055923 (1991-10-01), Kitagawa et al.
patent: 5283140 (1994-02-01), Netz et al.
patent: 5323245 (1994-06-01), Rylander
patent: 5383033 (1995-01-01), Takahashi
patent: 5471543 (1995-11-01), Ng et al.
patent: 5793500 (1998-08-01), Netz et al.
"Photographische Mitteilungen Fur Fachmanner and Liebhaber von Professor Dr. H.W. Vogel," 31.Jahrgang (1894-1895).
"A Half-Century of Color", by Louis Walton Sipley.
Dainippon SG-818 Direct Scanagraph Brochure.
Crossfield Magnascan 626/636/646 Operator's Manual 6500-8690-01 A
"Filme und Platten Rasterphotographie," Moderne Chemigraphie in Theorie und Praxis, Polygraph Verlag GmBH, Frankfurt 1957, pp. 91-100.
"Publish," Jun. 1994, p. 76.
Bringdahl, O., "Halftone images: Spatial resolution and tone reproduction," J. Opt. Soc. Am., vol. 68, No. 3, Mar. 1978, pp. 416-422.
Sheet Entitled "Caprock Special Effect Contact Screens"; date unknown but assumed to be more than a year before the effective filing date of the first U.S. application in chain leading to this application.
Sheet entitled "Rasterkonfigurationen"; date unknown but assumed to be more than a year before the effective filing date of the first U.S. application in chain leading to this application; see item 8 on the left side referring to Linenraster and Effektraster.
Yule, J.A.C., "principles of Color Reproduction", John Wiley 7 Sons, Inc., NY, 1967, Forewars v and pp. 328-345.
Stucki, P., "Image Processing for Document Reproduction", found in "Advances in Digital Image Processing", Plenum Press, pp. 178-218.
Postcript Language Reference Manual, by Adobe Systems, Inc. p.82.
Goren, R.N., "High Quality Pictorial Xerographic Reproduction by Halftone Screening", SPSE, Electrophotography 4th Int. Conf., 1981, pp. 299-317.
Morgenstern, D., "Rasterungstechnik Fotomechanisch Und Elektroniish", Polygraph verlag GmbH (1985).
Sipley, L.W., The Photomechanical Halftone, (1958), pp. 18-62.
Molia, R.K., "lectronic Color Separation", pp. 90-93, 1988.
"Rasters en hun toepassing", brochure by Raster-UnionEFHA Kohinoor GmbH, pp5,35,41.
Ulichney, R., "Digital Halftoning", MIT Press, 1988, Preface pp. 2Chap. 5.
Gygax, A.F., Moderne Chemigraphie in Theorie Und Praxis, Polygraph Verlag GmbH, pp. 91-100.
Dessauer and Clark, pp. 485-487 (1965).

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