The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 16, 2007

Filed:

May. 08, 2002
Applicants:

Cyrus Chu, Fremont, CA (US);

Chang-hau Lee, Fremont, CA (US);

Inventors:

Cyrus Chu, Fremont, CA (US);

Chang-Hau Lee, Fremont, CA (US);

Assignee:

Pixelworks, Inc., Tualatin, OR (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01); H04N 5/445 (2006.01); H04N 5/50 (2006.01); G06F 3/00 (2006.01); G06F 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention provides a system and method for mixing graphics and text in an on-screen display application. The system includes font and character memories. The font memory stores bitmaps associated with characters to be displayed on a display device. The character memory, in turn, includes a font portion and an attribute portion. The font portion stores a font index of characters to be displayed, the font index being used to address the font memory. The attribute portion stores a plurality of attributes associated with a character to be displayed. The plurality of attributes includes a text/graphic attribute indicative of a text character or a graphic clip and a redirection attribute indicating mapping of a main color memory using an expanded color memory.


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