FR2331223A1 - Transmetteur d'images video par lignes telephoniques specialisees - Google Patents
Transmetteur d'images video par lignes telephoniques specialiseesInfo
- Publication number
- FR2331223A1 FR2331223A1 FR7534714A FR7534714A FR2331223A1 FR 2331223 A1 FR2331223 A1 FR 2331223A1 FR 7534714 A FR7534714 A FR 7534714A FR 7534714 A FR7534714 A FR 7534714A FR 2331223 A1 FR2331223 A1 FR 2331223A1
- Authority
- FR
- France
- Prior art keywords
- telephone line
- demodulator
- video signal
- signal
- receiver
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/08—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter
- H04M11/085—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter using a television receiver, e.g. viewdata system
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
- H04N7/108—Adaptations for transmission by electrical cable the cable being constituted by a pair of wires
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Closed-Circuit Television Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7534714A FR2331223A1 (fr) | 1975-11-04 | 1975-11-04 | Transmetteur d'images video par lignes telephoniques specialisees |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7534714A FR2331223A1 (fr) | 1975-11-04 | 1975-11-04 | Transmetteur d'images video par lignes telephoniques specialisees |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2331223A1 true FR2331223A1 (fr) | 1977-06-03 |
Family
ID=9162381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7534714A Withdrawn FR2331223A1 (fr) | 1975-11-04 | 1975-11-04 | Transmetteur d'images video par lignes telephoniques specialisees |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2331223A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0271969A2 (fr) * | 1986-12-19 | 1988-06-22 | Sharp Kabushiki Kaisha | Système de transmission multiplex à alimentation en courant continu superposée et à câble parallèle unique |
US5381459A (en) * | 1991-07-29 | 1995-01-10 | Cable Television Laboratories, Inc. | System for distributing radio telephone signals over a cable television network |
-
1975
- 1975-11-04 FR FR7534714A patent/FR2331223A1/fr not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0271969A2 (fr) * | 1986-12-19 | 1988-06-22 | Sharp Kabushiki Kaisha | Système de transmission multiplex à alimentation en courant continu superposée et à câble parallèle unique |
EP0271969A3 (en) * | 1986-12-19 | 1989-12-13 | Sharp Kabushiki Kaisha | Dc power-superposed multiplex transmission system with single parallel cable |
US5381459A (en) * | 1991-07-29 | 1995-01-10 | Cable Television Laboratories, Inc. | System for distributing radio telephone signals over a cable television network |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |