BE904359A - Systeme de compression de donnees. - Google Patents

Systeme de compression de donnees.

Info

Publication number
BE904359A
BE904359A BE0/216375A BE216375A BE904359A BE 904359 A BE904359 A BE 904359A BE 0/216375 A BE0/216375 A BE 0/216375A BE 216375 A BE216375 A BE 216375A BE 904359 A BE904359 A BE 904359A
Authority
BE
Belgium
Prior art keywords
bytes
sequence
data compression
compression system
transfer
Prior art date
Application number
BE0/216375A
Other languages
English (en)
Inventor
J R Waterworth
Original Assignee
Ferranti Plc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferranti Plc filed Critical Ferranti Plc
Publication of BE904359A publication Critical patent/BE904359A/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3084—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method
    • H03M7/3088—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction using adaptive string matching, e.g. the Lempel-Ziv method employing the use of a dictionary, e.g. LZ78

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Bus Control (AREA)

Abstract

Système de compression de données comprenant une mémoire pour des bytes d'une source extérieure. Un dispositif pour traiter des bytes successifs comprend un dispositif à circuit pour vérifier si une séquence de bytes est identique à une séquence déjà traitée, un dispositif de sortie pour appliquer à un milieu de transfert les bytes ne faisant pas partie d'une telle séquence identiquefication d'une telle séquence pour appliquer un signal d'identification au dispositif de transfert.
BE0/216375A 1985-03-06 1986-03-06 Systeme de compression de donnees. BE904359A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08505790A GB2172127B (en) 1985-03-06 1985-03-06 Data compression system

Publications (1)

Publication Number Publication Date
BE904359A true BE904359A (fr) 1986-06-30

Family

ID=10575531

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/216375A BE904359A (fr) 1985-03-06 1986-03-06 Systeme de compression de donnees.

Country Status (4)

Country Link
US (1) US4701745A (fr)
BE (1) BE904359A (fr)
DE (1) DE3606869C2 (fr)
GB (1) GB2172127B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8779950B2 (en) 2012-03-05 2014-07-15 Dcba, Llc Command encoded data compression

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Also Published As

Publication number Publication date
GB8505790D0 (en) 1985-04-11
DE3606869C2 (de) 1994-12-01
DE3606869A1 (de) 1986-09-11
GB2172127A (en) 1986-09-10
GB2172127B (en) 1988-10-12
US4701745A (en) 1987-10-20

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RE20 Patent expired

Owner name: *STAC ELECTRONICS ENCORPORATED.

Effective date: 20060306