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. 10, 2002
Filed:
Jun. 20, 2001
Applicant:
Inventor:
Dean Liu, San Jose, CA (US);
Assignee:
Ammocore Technology, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/750 ;
U.S. Cl.
CPC ...
G06F 1/750 ;
Abstract
In a block model abstraction of an integrated circuit developed from a hierarchal netlist, the hierarchal handling of timing exceptions is accomplished by selecting certain nodes not viewable at the top level in accordance with a set of rules, and raising these nodes to the top level so that defined timing exceptions may be applied. The timing model is next generated, and exception signatures created for paths between the selected nodes. Signatures are then removed from paths were such signature would not otherwise be valid.