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- Path: sparky!uunet!spool.mu.edu!yale.edu!yale!mintaka.lcs.mit.edu!ai-lab!life!hqm
- From: hqm@ai.mit.edu (Henry Minsky)
- Newsgroups: comp.dcom.fax
- Subject: Re: I want specs for CCITT group 4 Fax
- Followup-To: comp.dcom.fax
- Date: 2 Jan 93 15:01:03
- Organization: MIT Artificial Intelligence Laboratory
- Lines: 36
- Message-ID: <HQM.93Jan2150103@transit.ai.mit.edu>
- References: <freek.725838286@groucho.phil.ruu.nl> <C05zrt.Gz3@knot.ccs.queensu.ca>
- <1993Jan1.234038.21955@netcom.com>
- <1993Jan2.162021.13885@cbnewsi.cb.att.com>
- NNTP-Posting-Host: transit.ai.mit.edu
- In-reply-to: hrs1@cbnewsi.cb.att.com's message of Sat, 2 Jan 1993 16:20:21 GMT
-
-
- Please note that you are describing CCITT Rec. T.6 encoding. Group 4 is a
- protocol and terminal specification. T.6 specifies a compression method
- called MMR, Modified Modified READ.
-
- Both Group 3 fax and Group 4 fax can use T.6 compression. It is the default
- for G4 and an option for G3.
-
- CCITT is now publishing their recommendations as separate publications.
- However, it will not republish unrevised ones from the Blue Book.
-
- Herman Silbiger
-
-
- If you want a concise tutorial on everything to do with fax protocols,
- compression coding, group 4 standards, as well as a fascinating
- history of the development of fax technology (The first working fax
- machine was built around 1860, before the invention of the electric
- motor or amplifier), get a copy this excellent book:
-
-
- 076 MIT LIBRARIES - GEAC LIBRARY SYSTEM - *AUTHOR SEARCH
- AUTHOR: McConnell, Kenneth R.
- TITLE: FAX : digital facsimile technology & applications / Kenneth R.
- McConnell, Dennis Bodson, Richard Schaphorst.
- IMPRINT: Norwood, MA : Artech House, c1989.
- PHYSICAL FEATURES: xii, 222 p. : ill. ; 24 cm.
- SERIES: The Artech House telecommunication library * Artech House
- telecommunications library.
- NOTES: Bibliography: p. 217. * Includes index.
- OTHER AUTHORS, ETC: Bodson, Dennis. * Schaphorst, Richard.
- SUBJECTS: Facsimile transmission.
- LC CARD: 89-6602
- ISBN: 0890063109 :
-
-
-