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:
Oct. 07, 1997
Filed:
Jul. 12, 1996
Ramachandra P Kunda, Milpitas, CA (US);
Saied Bozorgui-Nesbat, Belmont, CA (US);
Hong Hao, Sunnyvale, CA (US);
Sun Microsystems, Inc., Mountain View, CA (US);
Abstract
A method for identifying false paths in a digital circuit. A list of paths corresponding to the digital circuit is either provided or generated. For each path, an AND gate is created. For each element in the path, the off-path signals of the monitor circuits corresponding to the elements of the path are coupled to the input of the AND gate. A plurality of different signals are input to the digital circuit in an attempt to generate a '1' at the output of the AND gate. A false timing path signal is generated for that path if the AND gate does not output a '1' within a pre-determined amount of time. This process is repeated for each path of the digital circuit to identify all false timing paths.