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From: onaka@hubble.ifa.hawaii.edu (Peter Onaka)
Newsgroups: comp.dsp
Subject: Re: A-law and u-law companding
Message-ID: <12672@uhccux.uhcc.Hawaii.Edu>
Date: 26 Apr 91 18:41:00 GMT
References: <1991Mar8.052136.11121@trl.oz.au> <11858@pasteur.Berkeley.EDU> <1991Apr2.232434.8179@oakhill.sps.mot.com>
Sender: news@uhccux.uhcc.Hawaii.Edu
Organization: Institute For Astronomy, Hawaii
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I signed my rights away for a design that I did for the telcom company
I used to work for that did u-law/a-law companding (and addition for
conferencing) in a TDM nonblocking switch for military and air traffic
applications.  It was done in pure synchronous hardware and they have
a patent application in for the whole system.  They are implementing
it in an ASIC right now.  I have to look at the legal agreement that
I signed, but I'd be willing to discuss general ideas if the original
poster has a noncommercial application in mind (I don't have the
original post).