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.
Patent No.:
Date of Patent:
Mar. 02, 1999
Filed:
Apr. 19, 1996
Applicant:
Inventors:
Lawrence P Chee, Vancouver, CA;
John David Mulvenna, Delta, CA;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
345113 ; 345114 ;
Abstract
A system and method for processing overlay display data. A display FIFO pipeline processes background graphics display data and a separate overlay FIFO pipeline processes overlay display data stored in an off-screen part of a graphics memory. The overlay FIFO pipeline performs format conversion, interpolation and scaling on the overlay display data and outputs it to an overlay mux. The overlay mux selects between the outputs of the display FIFO pipeline and the overlay FIFO pipeline in the processing of each scan line.