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- Path: mips.pfalz.de!not-for-mail
- From: naddy@mips.pfalz.de (Christian Weisgerber)
- Newsgroups: comp.dcom.modems
- Subject: Re: v34 speed on txt files???
- Date: 1 Apr 1996 23:24:48 +0200
- Message-ID: <4jphj0$9lk@mips.pfalz.de>
- References: <4hqq0e$eqn@sam.inforamp.net> <4hr16a$bci@nntp1.best.com> <4i4rhk$672@news.ios.com> <Pine.SUN.3.91.960313071128.12637A-100000@access5.digex.net> <4i9p1b$s1e@news.ios.com> <Pine.SUN.3.91.960315115620.14771A-100000@access2.digex.net> <4ih8n0$eqq@nnrp1.news.primenet.com> <4ihj2q$rk4@news3.digex.net> <4iimcj$gj6@hg.oro.net> <4il84j$8g3@news3.digex.net> <4in44i$7e7@hg.oro.net> <Pine.SUN.3.91.960320065625.4105A-100000@access2.digex.net>
- NNTP-Posting-Host: mips.pfalz.de
-
- Eric Fairbank <fairbank@access2.digex.net> writes:
-
- > MNP 5 is a compression protocol that provides a maximum compression of
- > 2:1
-
- The maximum compression ratio of MNP5 is well beyond 2:1, given
- sufficiently redundant input data.
-
- [ V.42bis "8:1" compression ]
- > These modems use what is called "enhanced v.42bis". The v.42bis
- > standard states the exact process to use for compression. This
- > process can, and has been tweeked and modified by some modem
- > manufacturers to allow DTE speeds as you have indicated.
-
- They have increased the dictionary size, which depending on the data may
- or may not improve throughput, and they've decided that a fictitious
- figure of "8:1" would fare well in marketing.
-
- --
- Christian 'naddy' Weisgerber naddy@mips.pfalz.de
- See another pointless homepage at <URL:http://home.pages.de/~naddy/>.
- -- currently reading: Greg Egan, Our Lady of Chernobyl --
-