Global Patent Index - EP 1738516 A1

EP 1738516 A1 20070103 - DATA TRANSMISSION NETWORK WITH SECRET PRESERVATION

Title (en)

DATA TRANSMISSION NETWORK WITH SECRET PRESERVATION

Title (de)

DATENÜBERTRAGUNGSNETZ MIT GEHEIMNIS-ERHALTUNG

Title (fr)

RESEAU DE TRANSMISSION DE DONNEES A PRESERVATION DU SECRET.

Publication

EP 1738516 A1 20070103 (FR)

Application

EP 04742498 A 20040414

Priority

FR 2004000915 W 20040414

Abstract (en)

[origin: WO2005112339A1] The invention relates to a data transmission network comprising a memory (1), with an identification file (2) and a data file (3), transceiver devices (TCK), connected to the memory and a management computer (6), connected to the memory (1), the arrangement being such that the devices (TCK) can perform read/write operations on a file sheet (3), after having provided a code and presented a chip card by means of a given identification chaining code, whilst the manager (G) does not have access to said chaining code.

IPC 8 full level

H04L 9/32 (2006.01); H04L 29/06 (2006.01)

CPC (source: EP)

H04L 9/321 (2013.01); H04L 9/3226 (2013.01); H04L 2209/60 (2013.01)

Citation (search report)

See references of WO 2005112339A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005112339 A1 20051124; EP 1738516 A1 20070103

DOCDB simple family (application)

FR 2004000915 W 20040414; EP 04742498 A 20040414