Global Patent Index - EP 1999569 A1

EP 1999569 A1 20081210 - RANDOM NUMBER GENERATOR

Title (en)

RANDOM NUMBER GENERATOR

Title (de)

ZUFALLSZAHLENGENERATOR

Title (fr)

GENERATEUR DE NOMBRES ALEATOIRES

Publication

EP 1999569 A1 20081210 (FR)

Application

EP 07731202 A 20070326

Priority

  • FR 2007000519 W 20070326
  • FR 0602728 A 20060329

Abstract (en)

[origin: WO2007110506A1] The invention concerns a random number generator comprising a n-bit LSFR (300), at least one oscillator (100) having at least one delay element (110) introducing a variable delay in the counter feedback loop, and at least on sampling/holding device (200) having at least one input coupled to an output of the oscillator, and at least one output coupled to an input of the LSFR, and a clock input receiving a sampling clock signal (CLKI) at a much lower frequency than the oscillator frequency. Said generator is for example configured to vary the delay introduced by the oscillator delay based on a number q of feedback bits among the n bits of the LSFR output, where q is an integer such that 1 = q =n.

IPC 8 full level

G06F 7/58 (2006.01)

CPC (source: EP US)

G06F 7/588 (2013.01 - EP US)

Citation (search report)

See references of WO 2007110506A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2007110506 A1 20071004; EP 1999569 A1 20081210; FR 2899352 A1 20071005; FR 2899352 B1 20080620; US 2009172055 A1 20090702; US 8209367 B2 20120626

DOCDB simple family (application)

FR 2007000519 W 20070326; EP 07731202 A 20070326; FR 0602728 A 20060329; US 28076707 A 20070326