Patent · US Active

True random number generator based on period jitter

US11334321B2 · kind B2 · utility

0Cited by

2References

30Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Rui Li · San Diego, US
De Lu · Taipei, TW
Venkat Narayanan · San Diego, US
Srivatsan Chellappa · Tempe, US

Key dates

Filing date	Jun 26, 2020
Grant date	May 17, 2022
Priority date	—
Expiry date	Oct 8, 2040

Classification

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

Abstract

A true random number generator (TRNG) for generating a sequence of random numbers of bits is disclosed. The TRNG includes a TRNG cell configured to generate a sequence of bits logically alternating with a mean frequency and with substantially random period jitter; a period monitor configured to generate a first sequence of random bits based on a set of periods of the sequence of logically alternating bits; and a sampling circuit configured to sample the first sequence of random bits in response to a sampling clock to generate a second sequence of random bits.

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