Patent · US Expired

Random number generator and method for generating a random number

US7426527B2 · kind B2 · utility

2Cited by

3References

14Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Thomas Strum · Tauberbischofsheim, DE
Guido Stromberg · Birkenfeld, DE
Ralf Brederlow · Poing, DE
Werner Weber · Munich, DE

Key dates

Filing date	Sep 23, 2004
Grant date	Sep 16, 2008
Priority date	—
Expiry date	May 27, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG06F7/588
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Random number generator having a transistor that generates an analog random telegraph signal (RTS) having a first or second signal state, a RTS detection unit for detecting the RTS generated by the transistor, a RTS sampling unit that supersamples the RTS detected by the RTS detection unit and thus generates a digitized RTS, a signal state duration detection unit that determines, from the digitized RTS, a first time variable representing the time duration of at least one first signal state of the generated RTS and a second time variable representing the time duration of at least one second signal state of the generated RTS, and a random number conversion unit, which is coupled to the signal state duration detection unit, and that generates a random number from the first time variable and the second time variable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.