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...

2005-08-02

2008-10-21

Lee, M. (Department: 2622)

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

C348S606000, C345S611000, C345S613000

Reexamination Certificate

active

07440037

ABSTRACT:
Anti-aliasing characters for improved display on an interlaced television monitor is described. 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: 6188385 (2001-02-01), Hill et al.
patent: 6421060 (2002-07-01), Luken
patent: 7002597 (2006-02-01), Arnold et al.

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