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Machine translation
1. (WO1980001634) SUBSCRIBER CARD FOR VIDEOTEX RECEIVER AND LOADING SET FOR THIS CARD
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001634    International Application No.:    PCT/FR1980/000017
Publication Date: 07.08.1980 International Filing Date: 05.02.1980
IPC:
H04N 7/025 (2006.01), G06K 19/07 (2006.01), G07C 9/00 (2006.01), G07F 7/00 (2006.01), G07F 7/08 (2006.01), G07F 7/10 (2006.01), H04N 7/03 (2006.01), H04N 7/035 (2006.01), H04N 7/08 (2006.01), H04N 7/081 (2006.01), H04N 7/167 (2011.01)
Applicants:
Inventors:
Priority Data:
7902996 06.02.1979 FR
Title (EN) SUBSCRIBER CARD FOR VIDEOTEX RECEIVER AND LOADING SET FOR THIS CARD
(FR) CARTE D"ABONNEMENT POUR RECEPTEUR DE VIDEOTEX ET POSTE DE CHARGEMENT DE LADITE CARTE
Abstract: front page image
(EN)This card is characterized in that it comprises a programmable memory comprising a plurality of locations to receive subscription digital block (Ci), a read-only-memory containing instructions, a computer circuit receiving, from the receiver where the card is introduced, digital messages (Mi) and receiving from said programmable memory a subscription digital block (Ci), said circuit being capable to develop a parameter algorithm by subscription keys (Ci) upon instructions from the second read-only-memory and providing after calculation a digital signal representative of a service key (K). Application to videotex systems, particularly of the ANTIOPE type.
(FR)Cette carte est caracterisee en ce qu"elle comprend une memoire programmable comprenant plusieurs emplacements pour recevoir des blocs numeriques d"abonnement (Ci), une memoire morte contenant des instructions, un circuit de calcul recevant, du recepteur dans lequel est introduite la carte, des messages numeriques (Mi) et recevant de ladite memoire programmable un bloc numerique d"abonnement (Cu), ce circuit etant apte a derouler un algorithme parametre par des cles d"abonnement (Ci) sur instructions provenant de la seconde memoire morte et delivrant apres calcul un signal numerique representant une cle de service (K). Application aux systemes de videotex, notamment de type ANTIOPE.
Designated States:
Publication Language: French (FR)
Filing Language: French (FR)