True random number generator with repeatedly activated oscillator
US9606771B2 · kind B2 · utility
7Cited by
6References
20Claims
0Family size
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Key dates
| Filing date | Aug 18, 2014 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Aug 26, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/84
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A true random number generator (RNG) has one or more oscillators and an output register for storing a random number output. Each of the oscillators is activated, successively, in a free-running oscillation phase, and a capture phase during which the oscillator is quiescent. The output register latches during the capture phase of each oscillator an end state of that oscillator at or close to the end of its oscillation phase. The random number output is derived from the latched end states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.