Selector-based random number generator and method thereof
US11664790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2022 |
| Grant date | May 30, 2023 |
| Priority date | — |
| Expiry date | May 3, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/099
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A random number generator that includes control circuit, an oscillation circuit, an oscillation detection circuit and a latch circuit is introduced. The control circuit sweeps a configuration of a bias control signal among a plurality of configurations. The oscillation circuit generates an oscillation signal based on the configuration of the bias control signal. The oscillation detection circuit detects an onset of the oscillation signal, and outputs a lock signal. The latch circuit latches the oscillation signal according to a trigger signal to output a random number, wherein the trigger signal is asserted after the lock signal is outputted, and the configuration of bias control signal is locked after the lock signal is outputted. A method for generating a random number and an operation method of a random number generator are also introduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.