Static noise analysis with noise window estimation and propagation
US6836873B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2002 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Dec 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/367
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Static noise analysis simulates crosstalk functional noise by estimating a crosstalk functional noise window and by calculating the propagation of the noise window through a network. For example, the analysis can include simulations of injecting a noise window onto a network, propagating the noise window through the network until it reaches a register, and comparing the noise window with a register's sensitive window. The noise window for the net is calculated based on a duration of time in which noise glitches caused by capacitive coupling to aggressor nets can occur. The noise window is propagated through the net in a forward direction until the noise is attenuated or reaches a register's input. At the register's input, a sensitive window can filter the noise window so that only the portion of the noise window that coincides with the register's clock trigger time is considered in the noise analysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.