a00.de

www.a00.de
 > tcpgroup
 > 1994
 > msg00083

TCP-group 1994

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Does NOS SMTP LZW mode infringe on Welch patent?

To: tcp-group@ucsd.edu
Subject: Does NOS SMTP LZW mode infringe on Welch patent?
From: bruce@pixar.com (Bruce Perens)
Date: Fri, 9 Dec 94 20:56 PST

A naive' question that's probably been answered long ago:

When Terry Welch wrote the old Unix "compress" program, his employer
patented his improvement on Lempel and Ziv's compression algorithm. I
understand this patent is now owned by Unisys.

Does the Lempel-Ziv-Welch compression used in NOS compressed SMTP service
infringe upon this patent?

	Thanks

	Bruce Perens AB6YM

--
<a href="http://www.rahul.net/perens>Bruce Perens AB6YM</a>
Voice phone: 510-215-3502  Internet: Bruce@Pixar.com
Amateur Radio TCP/IP: Bruce@ab6ym.ampr.org
Amateur Radio BBS network: ab6ym@n0ary.#nocal.ca.usa.noam

Follow-Ups:
- Re: Does NOS SMTP LZW mode infringe on Welch patent?
  - From: iialan@iifeak.swan.ac.uk (Alan Cox)

Prev by Date: GPL-ed code from NOS
Next by Date: Re: Patents and AX.25
Previous by thread: GPL-ed code from NOS
Next by thread: Re: Does NOS SMTP LZW mode infringe on Welch patent?
Index(es):
- Date
- Thread

Document URL : http://www.a00.de/tcpgroup/1994/msg00083.php
Ralf D. Kloth, Ludwigsburg, DE (QRQ.software). < hostmaster at a00.de > [don't send spam]
Created 2004-10-04. Last modified 2004-10-04. Your visit 2024-11-24 01:25.50. Page created in 0.0177 sec.

[Go to the top of this page] [... to the index page]