EP0489582A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Platemaking process and system for printing of abstract patterns
Assignee: Dai Nippon Printing Co Ltd
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Filing: 1991-12-04
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Granted: —
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Expires: 2011-12-04
Abstract
Abstract This invention seeks to render baby-plate making, confirmation of whether or not there is a glitch and glitch removal easy in printing abstract patterns on architectural materials. A unit material is separated by an input scanner 1 into pixels of given density for reading. Image data on the unit material read are dissolve-composited given times vertically and horizontally in an endless processor 9 to construct pattern data of given size. Some pixels are extracted from the pattern data in a glitch-checking processor 10 for display on the screen of a monitor 14. It is thus possible to confirm if there is an undesired pattern, i.e., a glitch,by viewing the screen of monitor 14. If there is a glitch, then it can be removed by a glitch removal processor 11. The glitch removal process 11 includes glitch removal means working on three, i.e., scramble, pixel copy and Fourier transform schemes, thereby achieving glitch removal effectively depending on what state the glitch is occurring in.
Inventors
- 👤 Michio c/o Dai Nippon Printing Co. Ltd. Kurata
- 👤 Toshio c/o Dai Nippon Printing Co. Ltd. Modegi
- 👤 Hideki c/o Dai Nippon Printing Co. Ltd. Murota
- 👤 Eisuke c/o Dai Nippon Printing Co. Ltd. Arai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 16:50
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; H04N1/3877; H04N1/3878; B; B41; B41M; B41M3/00; B41M3/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
64 words
A platemaking process for printing abstract patterns on architectural materials, wherein image data on a unit material read by an input scanner are dissolve-composited a given plurality of times both vertically and horizontally, to make a rectangular abstract pattern of given size, and said abstract pattern is trimmed at its upper, lower, left and right edges so as to construct the same data thereon.
Claim 2
Dependent Claim
54 words
A platemaking process as claimed in Claim 1, wherein said trimming of said first abstract pattern is carried out to thereby make a second abstract pattern, and a plurality of said second abstract patterns are used to form a pattern array with no space among them, thereby constructing a third abstract pattern for printing.
Claim 3
Dependent Claim
62 words
A platemaking process as claimed in Claim 1, wherein some pixels are extracted out of said first abstract pattern to make a second abstract pattern, and a given number of said abstract patterns are used to form a pattern array with no space among them, which is then displayed to confirm if an undesired pattern has occurred in said first abstract pattern.
Claim 4
Dependent Claim
37 words
A platemaking process as claimed in any preceding claim,wherein the input scanner generates first abstract pattern data of said given size, and any undesired pattern is removed from said first pattern data to generate second pattern data.
Claim 5
Dependent Claim
48 words
A platemaking process as claimed in Claim 4, wherein removal of the undesired pattern from said first pattern data is performed by replacing data lying at a given location on said first pattern data with data lying at another given location on the basis of given mask data.
Claim 6
Dependent Claim
58 words
A platemaking process as claimed in Claim 4, wherein removal of the undesired pattern from said first pattern data is performed by generating mask data from said data lying at said given location on said first pattern data and copying pixel data lying at a desired location to another different location on the basis of said mask data.
Claim 7
Dependent Claim
43 words
A platemaking process as claimed in Claim 4, wherein the removal of the undesired pattern from said first pattern data is performed by subjecting said first pattern data to two-dimensional Fourier transformation to cancel a given frequency region, followed by reverse Fourier transformation.
Claim 8
Dependent Claim
35 words
A printing process wherein a press plate is made from the final abstract pattern obtained from a process as claimed in any preceding claim and the press plate is used for printing onto architectural material.
Claim 9
Dependent Claim
75 words
A platemaking system for printing abstract patterns on architectural materials by the process of Claim 1, which system includes at least an input scanner, a first means for dissolve-compositing data image on a unit material read by said input scanner a plurality of times, thereby generating data on an abstract pattern of given size, and a second means for retouching said data constructed by said first means of an undesired pattern which has occurred therein.
Claim 10
Dependent Claim
54 words
A platemaking system as claimed in Claim 9, wherein said second means is a means for replacing a portion of the pattern data constructed by said first means and lying at a given location by another portion lying at another given location on the basis of given mask data, thereby eliminating said undesired pattern.
Claim 11
Dependent Claim
65 words
A platemaking system as claimed in Claim 9, wherein said second means is a means is a means for constructing mask data from a portion of the pattern data constructed by said first means and lying at a given location and copying pixel data lying at a desired location to another desired location on the basis of said mask data, thereby eliminating said undesired pattern.
Claim 12
Dependent Claim
47 words
A platemaking system as claimed in Claim 9, wherein said second means is a means for subjecting the pattern data constructed by said first means to two-dimensional Fourier transformation to delete a given frequency region therefrom, followed by reverse Fourier transformation, whereby said undesired pattern is eliminated.
Claim 13
Dependent Claim
27 words
A printed material made by a process as claimed in Claim 8 or by means by a system as claimed in any of Claims 9 to 12.
References Cited (Backward Citations)
No citation records indexed.
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