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:
Jul. 08, 2014
Filed:
Apr. 27, 2011
Sarvesh Bhardwaj, Fremont, CA (US);
Khalid Rahmat, Fremont, CA (US);
Kayhan Kucukcakar, Los Altos, CA (US);
Rachid Helaihel, Mountain View, CA (US);
Sarvesh Bhardwaj, Fremont, CA (US);
Khalid Rahmat, Fremont, CA (US);
Kayhan Kucukcakar, Los Altos, CA (US);
Rachid Helaihel, Mountain View, CA (US);
Synopsys, Inc., Mountain View, CA (US);
Abstract
A system and a method are disclosed for reducing memory used in storing totals during static timing analysis. Totals are stored at various points along paths analyzed in static timing analysis. Some totals may not be merged for reasons including differing clock re-convergence pessimism removal (CRPR) dominators, exceptions, or clocks. Totals at a point may be stored in a super-tag mapping table and replaced at the point with a super-tag. The super-tag includes a super-tag ID referencing the totals stored in the super-tag mapping table. The super-tag also includes a time delay value. The time delay value allows the super-tag ID to be reused in other super-tags at other points while still storing total time delays at the other points. Therefore, the memory used to store totals is reduced in many situations.