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. 01, 2018
Filed:
Feb. 25, 2016
Applicant:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Inventors:
Parameswaran Ramanathan, Madison, WI (US);
Kewal Saluja, Madison, WI (US);
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/06 (2006.01); G06F 21/62 (2013.01);
U.S. Cl.
CPC ...
H04L 9/0656 (2013.01); G06F 21/6218 (2013.01);
Abstract
A system for creating protected functional descriptions of integrated circuits provides encrypted gate delay information preventing deduction of gate function from gate delay but allowing simulation of the integrated circuit with accurate propagation delay calculation. Individual gate delay values may be modified so that they obscure actual gate delays but so that the modified individual gate delays total to equal the actual cumulative gate delay along a given data propagation path.