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ITU-T V.44

Data compression procedures

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Organization: ITU-T
Publication Date: 1 November 2000
Status: active
Page Count: 59
scope:

General

This Recommendation describes a lossless data compression procedure for use with V-series data circuit-terminating equipment (DCEs).

The principal characteristics of the data compression procedure are:

a) a compression procedure based on an algorithm that encodes strings of characters input from data terminal equipment (DTE) as binary codes of variable length;

b) a decoding procedure that recovers the strings of characters from received binary codes of variable length;

c) a string-building mechanism that rapidly extends existing strings;

d) an automatically invoked transparent mode of operation when uncompressible data are detected.

Annex B describes the implementation of this data compression procedure in packet networks.

A summary of the set of parameters used in this Recommendation is given in clause 8.

Clause I.7 summarizes the main differences between the algorithms of ITU-T V.44 and V.42 bis.

This Recommendation contains examples for illustrative purposes; in any case in which an example appears to contradict the normative text, the normative text shall take precedence.

Document History

March 1, 2002
Data Compression Procedures Corrigendum 1 - Series V: Data Communication over the Telephone Network Error Control
A description is not available for this item.
ITU-T V.44
November 1, 2000
Data compression procedures
General This Recommendation describes a lossless data compression procedure for use with V-series data circuit-terminating equipment (DCEs). The principal characteristics of the data compression...

References

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