Computer graphics processing and selective visual display system – Computer graphics display memory system – Addressing
Reexamination Certificate
2011-08-16
2011-08-16
Nguyen, Hau H (Department: 2628)
Computer graphics processing and selective visual display system
Computer graphics display memory system
Addressing
C345S567000, C345S568000, C345S572000
Reexamination Certificate
active
07999820
ABSTRACT:
Methods and systems for reusing memory addresses in a graphics system are disclosed, so that instances of address translation hardware can be reduced. One embodiment of the present invention sets forth a method, which includes mapping a footprint on a display screen to a group of contiguous physical memory locations in a memory system, determining an anchor physical memory address from a first transaction associated with the footprint, wherein the anchor physical memory address corresponds to an anchor in the group of contiguous physical memory locations, determining a second transaction that is also associated with the footprint, determining a set of least significant bits (LSBs) associated with the second transaction, and combining the anchor physical memory address with the set of LSBs associated with the second transaction to generate a second physical memory address for the second transaction, thereby avoiding a second full address translation.
REFERENCES:
patent: 5943242 (1999-08-01), Vorbach et al.
patent: 6021490 (2000-02-01), Vorbach et al.
patent: 6081903 (2000-06-01), Vorbach et al.
patent: 6119181 (2000-09-01), Vorbach et al.
patent: 6338106 (2002-01-01), Vorbach et al.
patent: 6405299 (2002-06-01), Vorbach et al.
patent: 6425068 (2002-07-01), Vorbach et al.
patent: 6480937 (2002-11-01), Vorbach et al.
patent: 6542998 (2003-04-01), Vorbach et al.
patent: 6571381 (2003-05-01), Vorbach et al.
patent: 6697979 (2004-02-01), Vorbach et al.
patent: 6992679 (2006-01-01), Tillery et al.
patent: 7003660 (2006-02-01), Vorbach et al.
patent: 7210129 (2007-04-01), May et al.
patent: 7266725 (2007-09-01), Vorbach et al.
patent: 7394284 (2008-07-01), Vorbach
patent: 7434191 (2008-10-01), Vorbach et al.
patent: 7444531 (2008-10-01), Vorbach et al.
patent: 2001/0042184 (2001-11-01), Sethi
Everitt Cass W.
French Mark J.
Molnar Steven E.
Weitkemper Adam Clark
Nguyen Hau H
Nvidia Corporation
Patterson & Sheridan LLP
LandOfFree
Methods and systems for reusing memory addresses in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and systems for reusing memory addresses in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and systems for reusing memory addresses in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2763947