Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1985-11-12
1991-03-26
Groody, James J.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358298, 355202, H04N 146
Patent
active
050033816
ABSTRACT:
The transparencies of an original for the primary colors are measured at a series of discrete points. The transparency values are processed to adjust for the characteristics of the copy material and the characteristics of the light source used to form an image of the original on the copy material. The light source is a cathode ray tube which generates an image forming beam having a Gaussian intensity distribution with a maximum at the longitudinal axis of the beam. The copy material is a hard copy material having three layers each of which is sensitized to light of a different primary color. Each layer responds to light of the corresponding color having an intensity in excess of a corresponding threshold level but exhibits no response to light having an intensity below this level. An image of the original is formed on the copy material point-by-point using the image forming beam from the cathode ray tube. The size of each image point depends upon the intensity of the beam relative to the threshold levels. By regulating the intensity of the beam on the basis of the adjusted transparency values of the original, the sizes of the image points are such that the tones of the image correspond to those of the original.
REFERENCES:
patent: 1717781 (1929-06-01), Ives
patent: 2757571 (1956-08-01), Loughren
patent: 2972012 (1961-02-01), Farber
patent: 3536403 (1968-06-01), Strickholm
patent: 3564131 (1971-02-01), Herold et al.
patent: 3651246 (1972-03-01), Bergero
patent: 3671666 (1972-06-01), Hennig
patent: 3842195 (1974-10-01), Takahashi et al.
patent: 4025189 (1977-05-01), Pugsley
patent: 4032969 (1977-06-01), Ueda
patent: 4081828 (1978-03-01), Jones et al.
patent: 4198154 (1980-04-01), Masegi et al.
patent: 4285580 (1981-08-01), Murr
patent: 4308326 (1981-12-01), Wirth
patent: 4395108 (1983-07-01), Morse
patent: 4402015 (1983-08-01), Yamada
patent: 4551751 (1985-11-01), Jung
Biedermann, Klaus, "Ermittlung des Zusammenhanges zwischen der subjektiven Gute und den physikalischen Eigenschaften des photographischen Bildes", Photographische Korrespondenz, vol. 103, Nos. 1-3, 1967, pp. 5-14, 26-31, 42-48.
Gove, Philip Babcock, Editor in Chief, Webster's Third New International Dictionary of the English Language Unabridged, G. & C. Merriam Company, date unknown, p. 1023, see entry for "Halogenide".
AGFA -Gevaert Aktiengesellschaft
Groody James J.
Kontler Peter K.
LandOfFree
Method and apparatus for point-by-point reproduction of an origi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for point-by-point reproduction of an origi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for point-by-point reproduction of an origi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-621489