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. 19, 2006
Filed:
May. 01, 2002
Applicant:
Zhaoyun Xing, San Jose, CA (US);
Inventor:
Zhaoyun Xing, San Jose, CA (US);
Assignee:
Sun Microsystems, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A shape-based geometric database uses R-trees to compactly and efficiently represent design objects. Such R-trees may be populated in an efficient and balanced manner to improve the efficient use of such R-trees in various stages of circuit design, for example. For example, tiles are assigned to bins depending at least partially on orientation of the tiles and on proximity of the tiles to reference tracks having similar orientations. Bin R-trees may be defined, along with direction and layer R-trees using a level sequential process from lower levels to higher levels until a root node is defined in each case.