Computer graphics processing and selective visual display system – Computer graphics display memory system – Plural storage devices
Reexamination Certificate
2005-01-06
2009-12-01
Caschera, Antonio A (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Plural storage devices
C345S001100, C345S506000, C345S545000, C345S548000, C345S682000, C382S295000, C382S298000, C715S778000
Reexamination Certificate
active
07626587
ABSTRACT:
A computer system including a processor, a display, and a graphics unit coupled between the processor and the display, in which the processor is configured to perform multi-display operations which generate multiple frames of display data for simultaneous display, and a graphics unit for use in such a system. Typically, the graphics unit includes graphics memory that includes at least two frame buffers, and the processor operates as if it were independently asserting multiple streams of display data to multiple frame buffers for driving multiple displays independently. Another aspect of the invention is a system that displays data from a frame buffer on a screen. The frame buffer holds data indicative of a virtual desktop that is larger than can be displayed on the screen or available portion thereof, the system can display on the screen any of a number of different subsets of the frame buffer data, each subset indicative of a different portal of the desktop, and the system includes a processor including texture processing circuitry operable to filter a subset of the frame buffer data that is indicative of a portal to be displayed.
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de Waal Abraham B.
Donovan Walter E.
Caschera Antonio A
NVIDIA Corporation
Patterson & Sheridan LLP
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