Data handling system for a pattern generator

Details Data handling system for a pattern generator Data handling system for a pattern generator

1983-10-26

1986-10-28

Krass, Errol A.

Boots, shoes, and leggings

364520, 382 1, 340720, 340750, G06K 1500

Patent

active

046202889

ABSTRACT:
This data processing system for a pattern generator receives data specifying each quadrilateral element in a pattern to be generated by laser scanning or other technique. The scanning is accomplished by swaths. In the preprocessor, separate vectors are produced for the portion of each quadrilateral edge in each swath. A real time processor, including a "pipeline" or cascaded set of beam processors, is used to generate a bit map from these clipped edge vectors. The bit map itself is skew compensated to take into account relative movement between the laser scanner and the target during pattern generation.

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Sutherland et al., "Reentrant Polygon Clipping", [Communications of the ACM, Jan. 1974], Tutorial and Selected Readings in Interactive Graphics, 1980, pp. 244-254.
Blinn et al., "Clipping Using Homogeneous Coordinates", [Computer Graphics, vol. 12, No. 3, Aug. 1978], Tutorial: Computer Graphics, 1979, pp. 197-203.

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