Title (en)

METHOD FOR TECHNICALLY UPGRADING A RECEIVER FOR PACKET DATA BROADCAST AND REMOVABLE COMPUTERISED STORAGE MEDIUM FOR IMPLEMENTING SAID METHOD

Title (de)

VERFAHREN ZUR AKTUALISIERUNG EINES RUNDFUNK-DATENPAKETE-EMPFÄNGERS

Title (fr)

PROCEDE DE MISE A NIVEAU TECHNIQUE D'UN RECEPTEUR DE DONNEES DIFFUSEES PAR PAQUETS ET SUPPORT INFORMATIQUE AMOVIBLE POUR LA MISE EN OEUVRE DU PROCEDE

Publication

EP 1145523 A2 20011017 (FR)

Application

EP 99929487 A 19990715

Priority

• FR 9901725 W 19990715
• FR 9809216 A 19980720

Abstract (en)

[origin: FR2781324A1] A server transmits encrypted data from the encryption unit (12) controlled by a managing circuit (11) passing the data to the transmitter (13). A satellite (2) re-transmitted the data which is detected by one of many receivers (3) operated by subscribers (and non-subscribers). The receiver is connected to a personal computer, PC (35), using a bi-directional link (34) and including a reader (36) for diskettes (37) containing decryption information. The receiver also incorporates electronic circuits (31) which accepts an electronic card with microchip (purchased by the subscriber) to modify decryption to gain access to the original data. The cycle times for modification takes typically 10 seconds. The packet signals are re-assembled based on the updated decryption information to provide usable signals.

IPC 1-7

H04L 29/06

IPC 8 full level

H04L 29/06 (2006.01); H04N 5/00 (2011.01)

CPC (source: EP)

H04N 21/4405 (2013.01); H04N 21/4623 (2013.01); H04L 69/22 (2013.01)

Citation (search report)

See references of WO 0005851A2

Designated contracting state (EPC)

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

DOCDB simple family (publication)

FR 2781324 A1 20000121; FR 2781324 B1 20000908; AU 4628899 A 20000214; EP 1145523 A2 20011017; WO 0005851 A2 20000203; WO 0005851 A3 20011025

DOCDB simple family (application)

FR 9809216 A 19980720; AU 4628899 A 19990715; EP 99929487 A 19990715; FR 9901725 W 19990715