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:
Nov. 27, 2012
Filed:
Dec. 19, 2008
David Kirk Mcallister, Holladay, UT (US);
Steven E. Molnar, Chapel Hill, NC (US);
Peter B. Holmqvist, Cary, NC (US);
Jerome F. Duluk, Jr., Palo Alto, CA (US);
Cass W. Everitt, Heath, TX (US);
Emmett M. Kilgariff, San Jose, CA (US);
Patrick R. Brown, Raleigh, NC (US);
Christian Johannes Amsinck, Durham, NC (US);
David Kirk McAllister, Holladay, UT (US);
Steven E. Molnar, Chapel Hill, NC (US);
Peter B. Holmqvist, Cary, NC (US);
Jerome F. Duluk, Jr., Palo Alto, CA (US);
Cass W. Everitt, Heath, TX (US);
Emmett M. Kilgariff, San Jose, CA (US);
Patrick R. Brown, Raleigh, NC (US);
Christian Johannes Amsinck, Durham, NC (US);
NVIDIA Corporation, Santa Clara, CA (US);
Abstract
A system and method for performing zero-bandwidth-clears reduces external memory accesses by a graphics processor when performing clears and subsequent read operations. A set of clear values is stored in the graphics processor. Each portion of a color or z buffer may be configured using a zero-bandwidth-clear command to reference a clear value without writing the external memory. The clear value is provided to a requestor without accessing the external memory when a read access is performed.