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:
Jun. 12, 2012
Filed:
Nov. 04, 2010
Sandor S. Kalman, Santa Clara, CA (US);
Vinay Verma, Fremont, CA (US);
Gitu Jain, Los Gatos, CA (US);
Taneem Ahmed, Toronto, CA;
Sanjeev Kwatra, Cupertino, CA (US);
Sandor S. Kalman, Santa Clara, CA (US);
Vinay Verma, Fremont, CA (US);
Gitu Jain, Los Gatos, CA (US);
Taneem Ahmed, Toronto, CA;
Sanjeev Kwatra, Cupertino, CA (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
A method is provided for routing a circuit design netlist. Nets of the netlist are grouped into a plurality of sub-netlists. For each sub-netlist, nets of the sub-netlist are routed as a function of congestion between nets of the sub-netlist. Congestion between nets of other sub-netlists in the plurality of sub-netlists is not taken into account. If two or more nets of the netlist are routed through the same routing resource, a global congestion history data set is updated to describe congestion between all nets in the netlist, and the two or more nets of the netlist are unrouted. The two or more nets are each rerouted as a function of the global congestion history data set and congestion between nets of the same sub-netlist as the net.