Computer graphics processing and selective visual display system – Computer graphics processing – Graph generating
Patent
1997-04-11
1999-09-07
Nguyen, Phu K.
Computer graphics processing and selective visual display system
Computer graphics processing
Graph generating
G06F 1500
Patent
active
059494328
ABSTRACT:
A method and apparatus for producing a translucent image over a base image created on the display screen of a computer system by a selected first application program, and conducting image operations either on said base image created by the selected application program with reference to the translucent image produced, or conducting image operations on said translucent image with reference to said base image of the first application program. The first application program runs on a central processing unit (CPU) of a computer system to produce a base image, and another application program referred to as the overlay program is run to produce the translucent image such that portions of the base image which are overlapped by the overlay image are at least partially visible through the translucent image. There is also a mechanism for blending the first video data and the second video data to produce a blended image on the screen assembly.
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Gilley Thomas S.
Gough Michael L.
Hansen, Jr. Daniel J.
MacDougald Joseph J.
Oswal Abhay
Apple Computer Inc.
Nguyen Phu K.
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