Random number generator with random sampling
US7904494B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2006 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Aug 18, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/588
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a random number generator, a first converter converts a first analog noise signal into a random digital clock signal and a second converter samples a second analog noise signal asynchronous to the first analog noise signal in response to the random digital clock signal and generates a random digital number stream. In one aspect, a random number generator output block samples the second converter random digital number stream in response to the random digital clock signal and generates a random number generator block output. In another aspect a pseudo noise source state machine generates the random digital clock signal in response to a first seed generated from the first analog noise signal, a second seed from process variation digital amplifier, and a past machine state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.