Computer graphics processing and selective visual display system – Computer graphics processing – Character generating
Reexamination Certificate
2006-12-12
2006-12-12
Jankus, Almis R. (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics processing
Character generating
Reexamination Certificate
active
07148893
ABSTRACT:
Automatically positioning of typographical features, such as vertical stems or horizontal segments of a character, on high contrast pixel sub-component boundaries as part of a rendering process that uses separately controllable pixel sub-components of pixels to represent different portions of the character. In order to identify the typographical features of the character that are to be aligned with high contrast pixel sub-component boundaries, topology of the character is analyzed at runtime. In display devices having vertical stripes of same-colored pixel sub-components, character legibility is increased when the left edges of stems are aligned with high contrast boundaries between pixel sub-components. Processing time and resources are conserved by performing a partial, rather than a full, topological analysis of the character. For example, some font files include data structures that define the position of key control points associated with the character, thereby indicating where the stems or other typographical features are located, and the relationship between different typographical features.
REFERENCES:
patent: 5796409 (1998-08-01), Hersch et al.
Betrisey Claude
Conway Matt
Hitchcock Gregory C.
Stamm Beat
Jankus Almis R.
Microsoft Corporation
Workman Nydegger
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