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:
Apr. 11, 2006
Filed:
Feb. 28, 2002
Applicants:
Michael G. Lavelle, Saratoga, CA (US);
Ewa M. Kubalska, San Jose, CA (US);
Yan Yan Tang, Mountain View, CA (US);
Inventors:
Michael G. Lavelle, Saratoga, CA (US);
Ewa M. Kubalska, San Jose, CA (US);
Yan Yan Tang, Mountain View, CA (US);
Assignee:
Sun Microsystems, Inc., Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/36 (2006.01); G06F 13/00 (2006.01); G06F 12/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An external cache management unit for use with 3D-RAM and suitable for use in a computer graphics system is described. The unit maintains and tracks the status of level one cache memory in the 3D-RAM. The unit identifies dirty blocks of cache memory and prioritizes block cleansing based on a least used algorithm. Periodic block cleansing during empty memory cycles is provided for, and may also be prompted on demand.