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:
Feb. 09, 1999

Filed:

Dec. 06, 1996
Applicant:
Inventors:

Bernard Gilbert, Westford, MA (US);

Keith Westgate, Andover, MA (US);

Richard Sayde, Littleton, MA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364578 ; 364488 ;
Abstract

Methods of speeding error analysis of electronic devices under test using simulation software that has the capability of simultaneously executing up to 32 tests on one image of the design model. One embodiment of the method contemplates executing the tests staggered in time so that a larger portion of the test is available for examination and execution at any given time. This allows errors to be found more quickly. Another embodiment contemplates more quickly testing a device initialization sequence by randomly establishing values for each state device, separately for each of the 32 tests, running the simulation, and then determining whether the state device values converge.


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