1996-01-20 - Re: Random Number Generators
Header Data
From: “John A. Thomas” <jathomas@netcom.com>
To: “Timothy L. Nali” <tn0s+@andrew.cmu.edu>
Message Hash: 2b201e0e78ac834e8e17f2aa6b0dadf354fd97997e40c6860b2de55885ba4ebe
Message ID: <Pine.3.89.9601200739.A10562-0100000@netcom4>
Reply To: <0kzHl6200bky0_dkQ0@andrew.cmu.edu>
UTC Datetime: 1996-01-20 15:59:51 UTC
Raw Date: Sat, 20 Jan 96 07:59:51 PST
Raw message
From: "John A. Thomas" <jathomas@netcom.com>
Date: Sat, 20 Jan 96 07:59:51 PST
To: "Timothy L. Nali" <tn0s+@andrew.cmu.edu>
Subject: Re: Random Number Generators
In-Reply-To: <0kzHl6200bky0_dkQ0@andrew.cmu.edu>
Message-ID: <Pine.3.89.9601200739.A10562-0100000@netcom4>
MIME-Version: 1.0
Content-Type: text/plain
You might find this article instructive: Herschell F. Murry, "A General
Approach for Generating Natural Random Numbers," IEEE Transactions on
Computers, December 1970, p. 1210.
A fairly recent patent uses your approach of two oscillators: No.
4,855,690 by Dias, assigned to Dallas Semiconductor Corp., "Integrated
Circuit Random Number Generator using sampled output of variable
frequency oscillator."
I'd suggest using Johnson noise; reverse-biased diodes generate noise
which is pink. Ive built devices using amplified Johnson noise, squared
up with a comparator, then averaged by a D flip-flop. The preliminary
results look pretty good.
Please post your results here -- and good luck.
John A. Thomas
jathomas@netcom.com
Thread
Return to January 1996
- Return to “attila <attila@primenet.com>”
- Return to ““John A. Thomas” <jathomas@netcom.com>”
- Return to ““Perry E. Metzger” <perry@piermont.com>”
- Return to “Peter Monta <pmonta@qualcomm.com>”
Return to ““Timothy L. Nali” <tn0s+@andrew.cmu.edu>”
- 1996-01-17 (Thu, 18 Jan 1996 03:00:37 +0800) - Random Number Generators - “Timothy L. Nali” <tn0s+@andrew.cmu.edu>
- 1996-01-17 (Thu, 18 Jan 1996 03:19:50 +0800) - Re: Random Number Generators - “Perry E. Metzger” <perry@piermont.com>
- 1996-01-17 (Thu, 18 Jan 1996 03:31:54 +0800) - Re: Random Number Generators - Peter Monta <pmonta@qualcomm.com>
- 1996-01-17 (Thu, 18 Jan 1996 05:30:37 +0800) - Re: Random Number Generators - attila <attila@primenet.com>
- 1996-01-20 (Sat, 20 Jan 96 07:59:51 PST) - Re: Random Number Generators - “John A. Thomas” <jathomas@netcom.com>