Font filter using bilinear interpolation

Details Font filter using bilinear interpolation Font filter using bilinear interpolation

2007-06-21

2011-10-04

Tung, Kee M (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S581000, C345S582000, C345S587000, C345S606000, C345S467000, C345S468000

Reexamination Certificate

active

08031204

ABSTRACT:
Systems and methods used for bilinear texture filtering may also be used to perform font filtering. Font data stored as a texture is read from memory in blocks that are coarsely aligned. Font alignment units may be used to provide a finely aligned region of the font data within a font filter footprint. The finely aligned region is then filtered using bilinear filtering to produce font coverage information representing a grayscale value for a pixel. Using existing bilinear filtering engines in conjunction with font alignment and sample units reduces the need for having a specific engine to perform each of the font filtering operations, possibly saving die area in a graphics system.

REFERENCES:
patent: 6400370 (2002-06-01), Lee et al.
patent: 6967659 (2005-11-01), Jayavant et al.
patent: 7737988 (2010-06-01), Toksvig et al.
patent: 2004/0102245 (2004-05-01), Escalera et al.
patent: 2004/0183817 (2004-09-01), Kaasila
patent: 2007/0080972 (2007-04-01), Gruber
patent: 2007/0182753 (2007-08-01), Isidoro et al.

Affiliated with

Also associated with

Rating

Font filter using bilinear interpolation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Font filter using bilinear interpolation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Font filter using bilinear interpolation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4288045