Global Patent Index - EP 1334557 A2

EP 1334557 A2 20030813 - STATIC INFORMATION KNOWLEDGE USED WITH BINARY COMPRESSION METHODS

Title (en)

STATIC INFORMATION KNOWLEDGE USED WITH BINARY COMPRESSION METHODS

Title (de)

MIT BINÄREN KOMPRESSIONSVERFAHREN VERWENDETE STATISCHE INFORMATIONSKENNTNIS

Title (fr)

CONNAISSANCE D'INFORMATIONS STATIQUES UTILISEE AVEC DES PROCEDES DE COMPRESSION BINAIRE

Publication

EP 1334557 A2 20030813 (EN)

Application

EP 01983894 A 20011115

Priority

  • SE 0102549 W 20011115
  • US 24992300 P 20001116
  • US 81440601 A 20010321

Abstract (en)

[origin: WO0241497A2] A system, method, and apparatus for increasing the efficiency of the compression of a communication protocol for use over bandwidth limited communication links (250, 255, 550). One aspect of the present invention uses the knowledge of the structure and content of communication protocols to form a static dictionary (220, 420, 430) or static binary code tree. As a result, the compression efficiency can be greatly increased. Another aspect of the present invention provides a combined static and dynamic dictionary (520, 540) or binary code tree to perform communication protocol compression. In one aspect of the invention, the static binary code tree or static dictionary (220, 420, 430) is constructed by studying flows of data protocols in the conditions of their intended usage.

IPC 1-7

H03M 7/00

IPC 8 full level

H03M 7/30 (2006.01); H03M 7/40 (2006.01); H04L 29/06 (2006.01)

CPC (source: EP)

H03M 7/30 (2013.01); H04L 69/04 (2013.01); H04L 69/18 (2013.01)

Citation (search report)

See references of WO 0241497A2

Citation (examination)

  • EP 0788239 A2 19970806 - HITACHI LTD [JP]
  • LILJEBERG M ET AL: "Using CORBA to support terminal mobility", GLOBAL CONVERGENCE OF TELECOMMUNICATIONS AND DISTRIBUTED OBJECT COMPUT ING, 1997. PROCEEDINGS., TINA 97 SANTIAGO, CHILE 17-20 NOV. 1997, LOS ALAMITOS, CA, USA,IEEE COMPUT. SOC, US, 17 November 1997 (1997-11-17), pages 59 - 67, XP010805193, ISBN: 978-0-8186-8335-0
  • HANNU H ET AL: "ROBUST GENERIC MESSAGE SIZE REDUCTION (ROGER)", INTERNET DRAFT, XX, XX, 1 February 2001 (2001-02-01), pages 1 - 23, XP002902393
  • BELL T ET AL: "LONGEST-MATCH STRING SEARCHING FOR ZIV-LEMPEL COMPRESSION", SOFTWARE PRACTICE & EXPERIENCE, WILEY & SONS, BOGNOR REGIS, GB, vol. 23, no. 7, 1 July 1993 (1993-07-01), pages 757 - 771, XP000655855, ISSN: 0038-0644, DOI: DOI:10.1002/SPE.4380230705

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 0241497 A2 20020523; WO 0241497 A3 20020829; AU 1528702 A 20020527; CA 2428788 A1 20020523; CA 2428788 C 20100914; CN 1316749 C 20070516; CN 1486536 A 20040331; EP 1334557 A2 20030813; JP 2004514366 A 20040513; JP 3958211 B2 20070815; TW 543311 B 20030721

DOCDB simple family (application)

SE 0102549 W 20011115; AU 1528702 A 20011115; CA 2428788 A 20011115; CN 01822069 A 20011115; EP 01983894 A 20011115; JP 2002543788 A 20011115; TW 90126862 A 20011030