Device and method for generating a random bit sequence
US8531247B2 · kind B2 · utility
14Cited by
1References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2009 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Mar 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/588
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device (1) for generating a random bit sequence has a digital ring oscillator circuit (2) having at least one first feedback path (R8) and one second feedback path (R14). To this end, a changeover is performed between the feedback paths (R8, R14) at times which can be predetermined, and a random signal (OS) having a random level history can be tapped at an output node (4) of the ring oscillator circuit (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.