Time domain noise analysis
US6671663B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1998 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Jul 15, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/367
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A circuit simulator is provided for simulating the operation of a circuit in the time domain by accounting for the physical fluctuation (noise) in the time domain. Each of the components (14) in the matrix (10) has associated therewith an active current generator which can be simulated by the simulator in the time domain. In parallel with this active current generator, a stochastic (random) process current generator is provided. This stochastic current generator for each element will utilize a Gaussian random number generator (with 0 mean and a variance equal to 1) that is scaled by the standard deviation (square root of the variance) of the physical noise process that exists within the device. Additionally, this Gaussian random number generator is scaled by a factor that accounts for the time step or discrete operation of the noise simulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.