Method and apparatus for color separation scanning
AssigneeItek Graphix Corp.
InventorsJohn S. Wirtz, Peter J. Neilson
Life of this patent
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Abstract
A method and apparatus for color separation scanning wherein a workpiece is movably supported and scanned by a linear detector. At least one color filter is interposed in the optical path between the workpiece and the linear detector and multiple scans are taken of a linear portion of the workpiece. The data obtained from multiple scans are averaged and stored in memory. A second memory may be provided to accept data input during a scan of a subsequent portion of the workpiece while the data in the first memory is output to a print device.
Claims29
A data input apparatus for a color separation scanner, comprising
- (a) a continuously movable support for a workpiece;
- (b) a linear detector adapted to scan individual pixels across a linear portion of said workpiece;
- (c) means for interposing at least one color filter between said workpiece and said linear detector;
- (d) means for averaging individual pixel data received from multiple successive scans of said workpiece by said linear detector;
- and
- (e) means for storing said averaged data.
A data input method for a color separation scanner, comprising the steps of:
- (a) continuously movable supporting a workpiece;
- (b) scanning individual pixels across a linear portion of said workpiece with a linear detector;
- (c) interposing at least one color filter between said workpiece and said linear detector;
- (d) averaging individual pixel data received from multiple successive scanning of said workpiece with said linear detector;
- and
- (e) storing said averaged individual pixel data.
A color separation scanner, comprising:
- (a) a continuously movable support for a workpiece;
- (b) a linear detector for scanning a linear portion of said workpiece;
- (c) means for interposing at least one color filter between said workpiece and said linear detector;
- (d) first storage means for storing data from said linear detector;
- (e) second storage means for storing data from said linear detector;
- (f) switching means for switching between said first storage means and said second storage means;
- (g) a continuously movable support for photosensitive material;
- and
- (h) means for printing said stored data on said photosensitive material, wherein said printing means travels in conjunction with said continuously movable support for said workpiece.
A method of color separation scanning, comprising the steps of:
- (a) movably supporting a workpiece;
- (b) scanning a linear portion of said workpiece with a linear detector;
- (c) interposing at least one color filter between said workpiece and said linear detector;
- (d) storing data obtained from said scan in a first storage means
- (e) switching the storage of data to a second storage means at the completion of a scan;
- (f) outputting data from the first storage means to be printed while data is being stored in said first storage means.
Dependencies are inferred from the claim text.