Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1990-05-18
1992-09-22
Brinich, Stephen
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
H04N 121
Patent
active
051502259
ABSTRACT:
A technique for generating a screened reproduction of an image is disclosed. The technique includes the steps of providing a representation of an original having input density values of the original, storing information representing a plurality of contours of desired dot configurations, corresponding to various possible density values for a multiplicity of screened dots, determining, for each coordinate pair of a plotter, whether the coordinate pair lies inside or outside of the contour of a dot corresponding to the input density value of the original and operating the plotter to write only if the coordinate pair lies inside the contour, thereby to produce the multiplicity of screen dots of sizes representing the input density values of the original. Apparatus employing the method is also provided.
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patent: 4780768 (1988-10-01), Tomohisa et al.
patent: 4825298 (1989-04-01), Ikuta et al.
Brinich Stephen
Scitex Corporation Ltd.
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