Dot interpolation control system

Details Dot interpolation control system Dot interpolation control system

1985-04-26

1987-12-08

Krass, Errol A.

Boots, shoes, and leggings

364519, 364521, 382 46, 382 47, G06F 15626, G06K 942

Patent

active

047121858

ABSTRACT:
According to a dot interpolation control system for dot-interpolating a character pattern in a predetermined dot matrix form along at least the main scanning direction or the subscanning direction, there is provided a pair of registers for designating initial addresses of interpolated dots along the main scanning direction, another pair of registers for designating a dot pitch along the main scanning direction, and still another pair of registers for designating a dot pitch along the subscanning direction. Data pairs of x and y components, which selectively include trigonometric function data representing a designated rotation or inclination angle, are set in the corresponding registers. Dot interpolation of a character pattern is performed by main scanning and subscanning in accordance with the contents of the respective registers, thereby obtaining a rotated or inclined character on the basis of the designated angle.

REFERENCES:
patent: 4155072 (1979-05-01), Kawa
patent: 4379283 (1983-04-01), Ito et al.
patent: 4434503 (1984-02-01), Tanaka et al.
patent: 4475162 (1984-10-01), Kitamura
patent: 4490789 (1984-12-01), Leban et al.
patent: 4573199 (1986-02-01), Chen et al.
Information Processing Institute 26-th National Meeting, pp. 1411-1412, System for Translating the Configuration of Multi-Gradation Character Fonts the Hitachi General Research Institute Yajima

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