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:
Jul. 18, 2006
Filed:
Feb. 20, 2002
Applicants:
Steven Teig, Menlo Park, CA (US);
Joseph L. Ganley, Vienna, VA (US);
Inventors:
Steven Teig, Menlo Park, CA (US);
Joseph L. Ganley, Vienna, VA (US);
Assignee:
Cadence Design Systems, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
For a placer that partitions a region of a circuit layout into a plurality of sub-regions, some embodiments provide a method of computing placement costs. For a set of sub-regions, the method identifies a connection graph that connects the set of sub-regions. The connection graph has at least one edge that is at least partially diagonal. The method then identifies a placement cost from an attribute of the connection graph.