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ISO 11558 : 1ED 1992

Current
Current

The latest, up-to-date edition.

INFORMATION TECHNOLOGY - DATA COMPRESSION FOR INFORMATION INTERCHANGE - ADAPTIVE CODING WITH EMBEDDED DICTIONARY - DCLZ ALGORITHM
Published date

12-01-2013

1. Scope
2. Conformance
3. Normative references
4. Definitions
4.1 Code Value
4.2 Codeword
4.3 compression ratio
4.4 dictionary
4.5 empty state
4.6 frozen state
5. Conventions and notations
6. Algorithm identifier
7. DCLZ compression algorithm
7.1 Overview
7.2 Principle of operation
7.2.1 Compilation of the dictionary
7.2.2 Frozen dictionary
7.2.3 Resetting the dictionary to the empty state
7.2.4 Boundaries
7.2.5 Re-creation of the dictionary
7.3 Code Values
7.3.1 Control Codes
7.3.2 Encoded Bytes
7.3.3 Dictionary Codes
7.4 Codewords
Annexes
A. Example of a generic DCLZ algorithm
B. Example of Code Values output for a given input
      stream
C. Bibliography

Specifies a lossless compression algorithm, DCLZ (Data Compression according to Lempel and Ziv), to reduce the number of bits required to represent information coded by using 8-bit bytes. Specifies neither the strategy for freezing the dictionary nor that for resetting it, because these are implementation-dependent. Coverage includes: definitions, conventions and notations, and algorithm identifier. Also includes annexes.

Committee
JTC 1
DocumentType
Standard
PublisherName
International Organization for Standardization
Status
Current

Standards Relationship
ECMA 151 : 1ED 91 Corresponds

ANSI INCITS 467 : 2011 INFORMATION TECHNOLOGY - SCSI STREAM COMMANDS - 3 (SSC-3)

ISO 11576 : 1ED 1994 INFORMATION TECHNOLOGY - PROCEDURE FOR THE REGISTRATION OF ALGORITHMS FOR THE LOSSLESS COMPRESSION OF DATA

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