SYSTEM AND METHOD FOR COMMON HISTORY PESSIMISM RELIEF DURING STATIC TIMING ANALYSIS
Patent №
US 8,141,014
Granted
2012-03-20
Filed 2009
Owner
INTERNATIONAL BUSINESS MACHINES CORPORATION
Lab
AI components
2
planning · hardware
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
12538229
A system and method for adjustment of modeled timing data variation as a function of past state and/or switching history during static timing analysis. One illustrative embodiment may include inputting and asserting at least one of initial signal history bound and explicit device history bound constraints for at least one signal of a circuit design and evaluating for a segment processed during a forward propagation of block based static timing analysis whether any input signal to a current segment has a bounded history, at least one of propagated and asserted. The method may further include evaluating for the segment whether history bounds are downstream from a gating restriction, and processing a next segment until there are no further segments.
AI classification
Ownership
INTERNATIONAL BUSINESS MACHINES CORPORATION
assignment · 230710762
Assignors
FOREMAN, ERIC A., HABITZ, PETER A., HATHAWAY, DAVID J., HEMMETT, JEFFREY G., KALAFALA, KERIM, SOREFF, JEFFREY P.
On an employer assignment, the assignors are typically the inventors.