FR2563402B1 - Procede de codage et de decodage pour un systeme de television a peage - Google Patents

Procede de codage et de decodage pour un systeme de television a peage

Info

Publication number
FR2563402B1
FR2563402B1 FR8406220A FR8406220A FR2563402B1 FR 2563402 B1 FR2563402 B1 FR 2563402B1 FR 8406220 A FR8406220 A FR 8406220A FR 8406220 A FR8406220 A FR 8406220A FR 2563402 B1 FR2563402 B1 FR 2563402B1
Authority
FR
France
Prior art keywords
encoding
decoding method
television system
toll television
toll
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
FR8406220A
Other languages
English (en)
Other versions
FR2563402A1 (fr
Inventor
Jean-Claude Tessier
Guido Guerri Dall Oro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOIRE ELECTRONIQUE
Original Assignee
LOIRE ELECTRONIQUE
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 LOIRE ELECTRONIQUE filed Critical LOIRE ELECTRONIQUE
Priority to FR8406220A priority Critical patent/FR2563402B1/fr
Priority to DE3513860A priority patent/DE3513860C2/de
Publication of FR2563402A1 publication Critical patent/FR2563402A1/fr
Application granted granted Critical
Publication of FR2563402B1 publication Critical patent/FR2563402B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/08—Payment architectures
    • G06Q20/12—Payment architectures specially adapted for electronic shopping systems
    • G06Q20/127—Shopping or accessing services according to a time-limitation
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/21—Individual registration on entry or exit involving the use of a pass having a variable access code
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/0014—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for vending, access and use of specific services not covered anywhere else in G07F17/00
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
FR8406220A 1984-04-19 1984-04-19 Procede de codage et de decodage pour un systeme de television a peage Expired FR2563402B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8406220A FR2563402B1 (fr) 1984-04-19 1984-04-19 Procede de codage et de decodage pour un systeme de television a peage
DE3513860A DE3513860C2 (de) 1984-04-19 1985-04-17 Verfahren zum Codieren und Decodieren für ein Münzfernseh-System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8406220A FR2563402B1 (fr) 1984-04-19 1984-04-19 Procede de codage et de decodage pour un systeme de television a peage

Publications (2)

Publication Number Publication Date
FR2563402A1 FR2563402A1 (fr) 1985-10-25
FR2563402B1 true FR2563402B1 (fr) 1987-08-28

Family

ID=9303323

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8406220A Expired FR2563402B1 (fr) 1984-04-19 1984-04-19 Procede de codage et de decodage pour un systeme de television a peage

Country Status (2)

Country Link
DE (1) DE3513860C2 (fr)
FR (1) FR2563402B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2604809B1 (fr) * 1986-10-07 1988-12-02 Thomson Csf Carte de controle permettant d'engendrer des codes secrets de grande longueur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2313825A1 (fr) * 1975-06-06 1976-12-31 Telediffusion Fse Systeme de diffusion de donnees
FR2330236A1 (fr) * 1975-11-03 1977-05-27 France Etat Un procede de cryptage et de decryptage d'emissions de television et des circuits mettant en oeuvre ce procede
FR2459595A1 (fr) * 1979-06-15 1981-01-09 Telediffusion Fse Systeme de television a controle d'acces utilisant une cle electronique variable
US4536791A (en) * 1980-03-31 1985-08-20 Tocom, Inc. Addressable cable television control system with video format data transmission
US4388643A (en) * 1981-04-06 1983-06-14 Northern Telecom Limited Method of controlling scrambling and unscrambling in a pay TV system
US4484027A (en) * 1981-11-19 1984-11-20 Communications Satellite Corporation Security system for SSTV encryption
FR2542533A1 (fr) * 1983-03-11 1984-09-14 Thomson Brandt Systeme de controle d'acces, notamment a des informations diffusees, au moyen d'une carte d'acces optique

Also Published As

Publication number Publication date
DE3513860A1 (de) 1985-10-31
DE3513860C2 (de) 1996-08-01
FR2563402A1 (fr) 1985-10-25

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Legal Events

Date Code Title Description
ST Notification of lapse