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

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.

PlanningAI hardwareG06F 30/3312G06F 2119/12

AI classification

AI hardware0.98
Planning0.74
Knowledge representation0.01
Vision0.00
Natural language0.00
Machine learning0.00
Evolutionary computation0.00
Speech0.00

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.

From the same owner

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