Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!crdgw1!crdos1!davidsen
From: davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr)
Newsgroups: comp.arch
Subject: Re: RE: Hamming code (or other) for 4-bit correction?
Message-ID: <3290@crdos1.crd.ge.COM>
Date: 25 Mar 91 21:56:10 GMT
References: <16045.27ed2f20@levels.sait.edu.au> <24MAR91.12343947@uc780.umd.edu> <16047.27edd518@levels.sait.edu.au>
Reply-To: davidsen@crdos1.crd.ge.com (bill davidsen)
Organization: GE Corp R&D Center, Schenectady NY
Lines: 15

In article <16047.27edd518@levels.sait.edu.au> marwk@levels.sait.edu.au writes:

| I am trying to understand how to create error detection and correction codes
| so that I can devise my own given a variety of circumstances.
| If I have have methods of solution to the above questions then I think I could
| devise my own for, say, detection of 3-bit and correction of 2-bit errors.

  I think a check of the literature will show some better approaches
than hamming, and you don't even have to invent them. And if you want to
roll your own it would be nice if it wasn't identical to something
already known.
-- 
bill davidsen	(davidsen@crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen)
        "Most of the VAX instructions are in microcode,
         but halt and no-op are in hardware for efficiency"