Polar halftone methods for radial printing

Details Polar halftone methods for radial printing Polar halftone methods for radial printing

2006-08-01

2006-08-01

Zimmerman, Mark (Department: 2624)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003060, C358S003110, C358S003300

Reexamination Certificate

active

07085017

ABSTRACT:
Disclosed are apparatus and methods for implementing polar halftone techniques that substantially reduce or eliminate interference patterns while printing on rotating circular media with a radial print system. In one embodiment, Cartesian image pixels are selected such that screen pixels or “dots” are arranged fan-shaped along radii (or “spokes”) and in annular ring segments (or “arcs”). Halftone sampling frequency may be varied along spokes and arcs or along a polynomial curve relative to the center of spinning media, in order to reduce distortion and artifacts.

REFERENCES:
patent: 4051536 (1977-09-01), Roestling
patent: 4149194 (1979-04-01), Holladay
patent: 4185304 (1980-01-01), Holladay
patent: 4339774 (1982-07-01), Temple
patent: 4413286 (1983-11-01), Boston
patent: 5274473 (1993-12-01), Kidd et al.
patent: 5285291 (1994-02-01), Schiller

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