Thermal noise random pulse generator and random number generator

a random generator and generator technology, applied in pulse generation, pulse technique, instruments, etc., can solve the problems of high manufacturing cost, complex manufacturing process, and difficulty in social acceptance of devices with radioactive sources
US20030090306A1Inactive Publication Date: 2003-05-15SAITO TAKESHI
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SAITO TAKESHI
Publication Date
2003-05-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

A random number generator has a simple configuration using known inexpensive electronic parts and can generate the tine physical random numbers at a required generator speed. Such a random number generator can provide the true physical random numbers to any sectors of society at dramatically low cost A random pulse generator comprises a thermal noise generating element (2) having a resistor, a conductor or a semiconductor such as a diode adapted to generate thermal noises when no electric current is supplied to them, an analog-amplifier circuit for amplifying the irregular potential generated from the thermal noise generating element and a waveform shaping circuit (6) adapted to take out the output of the amplifier circuit as random rectangular pulse signals. A thermal noise random number generator comprises, in addition to the above components, an n-bit counter (n being an integer) for measuring the dine interval between a random pulse signal output from the waveform shaping circuit (6) and the immediately succeeding random pulse signal and is adapted to output the count of the n-bit counter as natural random number.
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Description

CROSS-REFERENCES TO RELATED APPLICATIONS

[0001] This patent application is a continuation of U.S. patent application Ser. No. 09 / 830,927 filed May 2, 2001 entitled Thermal Noise Random Pulse Generator And Random Number Generator which application is incorporated herein by this reference thereto.

[0002] 1. Field of the Invention

[0003] This invention relates to a physical random number generator adapted to generate the true random numbers by taking out thermal noises generated from a thermal noise generating element such as a resistor or a diode when no electric current is supplied to the thermal noise generating element and amplifying it by means of an amplifier. A physical random number generator according to the invention can suitably be used for personal identification, coding and other purposes in computer telecommunications and mail-order business because it can perfectly eliminate frauds. A physical random number generator according to the invention is also suitable for generatin...

Claims

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