Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2005-11-29
2005-11-29
Rogers, Scott A. (Department: 2626)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S003060
Reexamination Certificate
active
06970273
ABSTRACT:
Tone jumps are eliminated in all areas ranging from a highlight area through an intermediate tone area to a shadow area for thereby achieving a smoother tone reproduction. Halftone dots are grown in a circular shape from a halftone percentage of 0% to a first highlight percentage. Halftone dots are grown while changing from the circular shape to a square shape from the first highlight percentage to a second highlight percentage greater than the first highlight percentage. Halftone dots are grown in a square shape from the second highlight percentage to a second shadow percentage. Halftone dots are grown while changing from the square shape to a circular shape from the second shadow percentage to a first shadow percentage greater than the second shadow percentage. Halftone dots are grown in a circular shape from the first shadow percentage to a percentage of 100%. The dots stick well to the print sheet in the highlight area and clearly define inter-dot spaces in the shadow area, and no tone jumps occur in the vicinity of the halftone percentages of 50% and 78.5%.
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“Postscript Screening: Adobe Accurate Screens” by Peter Fink, MDN Corporation, Aug. 11, 1994, pp. 68-73 (Japanese version) and pp. 63-69 (English version).
Fuji Photo Film Co. , Ltd.
Rogers Scott A.
Sughrue & Mion, PLLC
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