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.

Date of Patent:
Dec. 17, 2013

Filed:

Jan. 11, 2008
Applicants:

Pradeep Goyal, Uttar Pradesh, IN;

Alok Jain, Delhi, IN;

Manu Chopra, Delhi, IN;

Anurag Gupta, Uttar Pradesh, IN;

Deepak Yadav, Uttar Pradesh, IN;

Inventors:

Pradeep Goyal, Uttar Pradesh, IN;

Alok Jain, Delhi, IN;

Manu Chopra, Delhi, IN;

Anurag Gupta, Uttar Pradesh, IN;

Deepak Yadav, Uttar Pradesh, IN;

Assignee:

Cadence Design Systems, Inc., San Jose, CA (US);

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

A method and apparatus for producing a vacuity detection report to reduce false positive verification results for digital circuits provided. In an exemplary embodiment, a design description of the digital design is generated. From the design description, a vacuity detection problem is derived by introducing an assertion into the design description. By introducing an assertion into the design description, the vacuity detection problem is solvable by formal assertion based verification engines. A verification engine is then used to solve the vacuity detection problem and produce a vacuity detection report. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.


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