Random number generator and random number generating method thereof
US8073888B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2008 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Oct 7, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0866
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A random number generator and a random number generating method thereof are provided. The random number generator includes a signal generating unit and a sampling unit. The signal generating unit is adapted for memorizing a status of a noise generated during a transient of an output signal of an output buffer, and accordingly generating a frequency conversion signal which changes according to time and ambient factors. The sampling unit is coupled to the signal generating unit for receiving the frequency conversion signal, and sampling the frequency conversion signal according to a sampling clock pulse, so as to obtain a plurality of sets of unpredictable random number codes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.