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:
Dec. 23, 2003
Filed:
Jun. 12, 2002
Applicant:
Inventor:
Stewart Carlton, Harvest, AL (US);
Assignee:
3Dlabs, Inc., Ltd., Hamilton, BM;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 8/00 ;
U.S. Cl.
CPC ...
G11C 8/00 ;
Abstract
An enhanced checkerboard pattern for optimizing performance when accessing a four-bank SDRAM. The screen is mapped using the enhanced checkerboard pattern, and each enhanced checkerboard pattern is composed of 16 squares. The enhanced checkerboard is made from two basic blocks, each block having 4 squares, and each square representing a distinct memory bank. The two basic blocks are mirror image of each other.