BS ISO/IEC 15200:1996

Foreword
Introduction
1 Scope
2 Conformance
3 Normative Reference
4 Definitions
    4.1 Compressed Data Stream
    4.2 Copy Pointer
    4.3 Current Address
    4.4 Data Byte
    4.5 Displacement Field
    4.6 End Marker
    4.7 History Buffer
    4.8 Literal
    4.9 Matching String
    4.10 Match Count
    4.11 Match Count Field
    4.12 Pad Bits
5 Conventions and Notations
    5.1 Representation of numbers
    5.2 Names
6 ALDC compression algorithm
    6.1 Encoding description for a 512-byte History Buffer
    6.2 Description of the Compressed Data Stream
Annexes
A ALDC encoding format
B ALDC Overview
C ALDC Encoding Flow Chart
D Bibliography

Defines a lossless compression algorithm for reduction of the number of bytes needed to represent data. Known as Adaptive Lossless Data Compression algorithm (ALDC).

This International Standard specifies a lossless compression algorithm to reduce the number of bytes required to represent data. The algorithm is known as Adaptive Lossless Data Compression algorithm (ALDC). The numerical identifiers according to ISO/IEC11576 allocated to this algorithm are:

ALDC 512-Byte History Buffer: 3

ALDC 1024-Byte History Buffer: 4

ALDC 2048-Byte History Buffer: 5