Anti-aliasing characters for improved display on an...

Details Anti-aliasing characters for improved display on an... Anti-aliasing characters for improved display on an...

2006-02-07

2006-02-07

Lee, Michael H. (Department: 2614)

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

C348S606000, C345S611000, C345S613000

Reexamination Certificate

active

06995803

ABSTRACT:
The described arrangements and procedures anti-alias a character for display on a monitor such as an interlaced television monitor. In one implementation, an expanded character is generated by increasing a character's original dimensions. The expanded character includes multiple sub-blocks and each sub-block includes multiple pixels. The pixels of each sub-block are mapped to a single destination color that is based on specific numbers of foreground pixels in the sub-block and a particular number of gray levels used to represent the character. Subsequent to this mapping, the expanded character is scaled back to its original size.

REFERENCES:
patent: 5910805 (1999-06-01), Hickey et al.
patent: 5940080 (1999-08-01), Ruehle et al.
patent: 6421060 (2002-07-01), Luken

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