FR2632147B1 - Procede et dispositif de teledistribution de messages - Google Patents
Procede et dispositif de teledistribution de messagesInfo
- Publication number
- FR2632147B1 FR2632147B1 FR8807217A FR8807217A FR2632147B1 FR 2632147 B1 FR2632147 B1 FR 2632147B1 FR 8807217 A FR8807217 A FR 8807217A FR 8807217 A FR8807217 A FR 8807217A FR 2632147 B1 FR2632147 B1 FR 2632147B1
- Authority
- FR
- France
- Prior art keywords
- teledistribution
- messages
- 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 - Fee Related
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8807217A FR2632147B1 (fr) | 1988-05-31 | 1988-05-31 | Procede et dispositif de teledistribution de messages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8807217A FR2632147B1 (fr) | 1988-05-31 | 1988-05-31 | Procede et dispositif de teledistribution de messages |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2632147A1 FR2632147A1 (fr) | 1989-12-01 |
FR2632147B1 true FR2632147B1 (fr) | 1997-01-03 |
Family
ID=9366768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8807217A Expired - Fee Related FR2632147B1 (fr) | 1988-05-31 | 1988-05-31 | Procede et dispositif de teledistribution de messages |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2632147B1 (fr) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3668307A (en) * | 1970-03-30 | 1972-06-06 | Kms Ind Inc | Two-way community antenna television system |
US3746780A (en) * | 1971-02-25 | 1973-07-17 | Mitre Corp | Video display system |
US4292650A (en) * | 1979-10-29 | 1981-09-29 | Zenith Radio Corporation | Stv Subscriber address system |
CA1177558A (fr) * | 1982-04-15 | 1984-11-06 | Groupe Videotron Ltee. (Le) | Systeme de transmission de donnees par reseau cable |
-
1988
- 1988-05-31 FR FR8807217A patent/FR2632147B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2632147A1 (fr) | 1989-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |