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:
Jan. 09, 2018

Filed:

Dec. 01, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

David J. Hathaway, Underhill, VT (US);

Kerim Kalafala, Rhinebeck, NY (US);

Stephen G. Shuma, Underhill, VT (US);

Chandramouli Visweswariah, Croton-on-Hudson, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/455 (2006.01); G06F 17/50 (2006.01);
U.S. Cl.
CPC ...
G06F 17/5045 (2013.01); G06F 17/5031 (2013.01); G06F 2217/84 (2013.01);
Abstract

A computer program product for performing selected timing comparisons in a digital electronic design includes propagating from signal sources to timing comparisons of one or multiple signal labels. The signal label includes signal source identifiers and signal path cycle adjust information. Timing comparisons are determined in which signal label values at each input of the timing comparison are required to compute the selected timing comparisons. The propagation back from the timing comparisons are needed signal labels, followed by the propagation and computing timing data from the signal source applied to the propagated signal labels corresponding to the required signal labels.


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