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.:

US 8555226 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 08, 2013

Filed:

Sep. 04, 2012
Applicants:

Xiushan Feng, Austin, TX (US);

Jayanta Bhadra, Austin, TX (US);

Ashish Goel, Noida, IN;

Inventors:

Xiushan Feng, Austin, TX (US);

Jayanta Bhadra, Austin, TX (US);

Ashish Goel, Noida, IN;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

An approach is provided in which a formal verification tool sends a condition signal to a first circuit instance and to a second circuit instance, which are both instances of an electric circuit design. The formal verification tool selects a common input port and sends a first input value to the common input port of the first circuit instance and sends a second input value, which is different than the first input value, to the common input port of the second circuit instance. In turn, the first circuit instance generates a first output value and the second circuit instance generates a second instance value, which are utilized to verify dependencies between the electronic circuit's input ports and output ports.


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