Random number generating method and random number generating device
US7080106B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2002 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Jul 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F7/588
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A random number generating method and a random number generating device are provided which are capable of generating uniform random numbers. Random pulses are generated by comparing a voltage level obtained by amplifying a voltage level of a thermal noise produced by a thermal noise generating device with a reference voltage level. A pulse controller, if time intervals among random pulses are within a predetermined time, excludes random pulses occurred within the predetermined time and if time intervals among random pulses exceed the predetermined time, random numbers are generated based on time intervals among pulses measured by a counter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.