Apparatus for converting character outline data into dot data, having means for correcting reproduction width of strokes of rotated or italicized characters
US5105471A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1991 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Feb 11, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0054
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data converting apparatus for converting outline data of a character into dot data including dot-forming bits each indicative of an image dot to be formed at a position of a corresponding dot-forming picture element which lies within the outline of each stroke of the character, when the character outline is superimposed on a pixel screen wherein picture elements are defined by x-axis and y-axis pixel lines perpendicular to each other. The apparatus includes a device for changing width direction data indicative of a direction of a nominal width of each stroke, if the outline data of the character are subjected to a conversion for rotation or italicization of the character as represented by the converted outline data. The width direction data is changed depending upon the specific condition of the outline data conversion, before at least one of two segments of the character outline which define the width of the stroke is moved in the direction indicated by the width direction data so that the reproduction width of the rotated or italicized character is equal to the nominal width.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.