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:
May. 25, 2010
Filed:
Nov. 01, 2007
Tetse Jang, San Jose, CA (US);
Kevin Chung, Toronto, CA;
Tetse Jang, San Jose, CA (US);
Kevin Chung, Toronto, CA;
Xilinx, Inc., San Jose, CA (US);
Abstract
A computer-implemented method of improving timing of a circuit design for a programmable logic device can include identifying a timing critical wire of the circuit design and determining a fanout free cone coupled to a plurality of leaf nodes, wherein the critical wire links a critical leaf node of the plurality of leaf nodes with the fanout free cone. At least one leaf node set can be selected, wherein the leaf node set includes a plurality of symmetric leaf nodes including the critical leaf node and at least one non-critical leaf node. At least two leaf nodes of a leaf node set can be swapped in the circuit design. The circuit design can be output.