FR2336017A1 - Local transmission of telephone and TV signals - employs common network with electronic combination and separation of signals - Google Patents
Local transmission of telephone and TV signals - employs common network with electronic combination and separation of signalsInfo
- Publication number
- FR2336017A1 FR2336017A1 FR7539636A FR7539636A FR2336017A1 FR 2336017 A1 FR2336017 A1 FR 2336017A1 FR 7539636 A FR7539636 A FR 7539636A FR 7539636 A FR7539636 A FR 7539636A FR 2336017 A1 FR2336017 A1 FR 2336017A1
- Authority
- FR
- France
- Prior art keywords
- signals
- telephone
- separation
- common network
- local transmission
- 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- Withdrawn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
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Radio Relay Systems (AREA)
Abstract
Telephone and TV signals are transmitted locally to a subscriber using a common network system in which electronic circuits permit combination or separation of the signals. Remote alarm and signalling may also be transmitted. A coaxial cable (1) distributes TV and FM signals by multiplexing. An intermediate station comprises a preamplifier (2) and mixer (3) which drives an amplifier (4) whose output feeds a connecting cable (5). A distribution unit (6) distributes signals to subscribers via a matching circuit (21) which connects to the FM receiver (24) and TV (23) and via a multiplexer (25) to the telephone (26) or to special equipment (27). The distribution unit (6) also connects to telephone lines (7) via sharing units (10, 16) and a concentrater (8).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7539636A FR2336017A1 (en) | 1975-12-18 | 1975-12-18 | Local transmission of telephone and TV signals - employs common network with electronic combination and separation of signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7539636A FR2336017A1 (en) | 1975-12-18 | 1975-12-18 | Local transmission of telephone and TV signals - employs common network with electronic combination and separation of signals |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2336017A1 true FR2336017A1 (en) | 1977-07-15 |
Family
ID=9164124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7539636A Withdrawn FR2336017A1 (en) | 1975-12-18 | 1975-12-18 | Local transmission of telephone and TV signals - employs common network with electronic combination and separation of signals |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2336017A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993004562A1 (en) * | 1991-08-15 | 1993-03-04 | Amulet Electronics Limited | Impedance matching |
EP0587367A1 (en) * | 1992-09-11 | 1994-03-16 | AT&T Corp. | Adapter for video and audio transmission |
EP0617560A1 (en) * | 1993-03-26 | 1994-09-28 | AT&T Corp. | Video adapter |
US5381459A (en) * | 1991-07-29 | 1995-01-10 | Cable Television Laboratories, Inc. | System for distributing radio telephone signals over a cable television network |
US6865193B2 (en) | 1999-02-22 | 2005-03-08 | Neil D. Terk | Video transmission system and method utilizing phone lines in multiple unit dwellings |
-
1975
- 1975-12-18 FR FR7539636A patent/FR2336017A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5381459A (en) * | 1991-07-29 | 1995-01-10 | Cable Television Laboratories, Inc. | System for distributing radio telephone signals over a cable television network |
WO1993004562A1 (en) * | 1991-08-15 | 1993-03-04 | Amulet Electronics Limited | Impedance matching |
EP0587367A1 (en) * | 1992-09-11 | 1994-03-16 | AT&T Corp. | Adapter for video and audio transmission |
EP0617560A1 (en) * | 1993-03-26 | 1994-09-28 | AT&T Corp. | Video adapter |
US6865193B2 (en) | 1999-02-22 | 2005-03-08 | Neil D. Terk | Video transmission system and method utilizing phone lines in multiple unit dwellings |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MY131284A (en) | Method and apparatus for transmitting, receiving and communicating program data signals with digital data signals | |
DE3476006D1 (en) | External synchronizing method and apparatus for information transmission system | |
GB1059342A (en) | Improved wired broadcasting systems | |
CA2134411A1 (en) | Customer premises adsl signal distribution arrangement | |
ATE120597T1 (en) | DEVICE FOR DISTRIBUTING VIDEO AND/OR AUDIO SIGNALS BETWEEN SEVERAL RECEIVERS. | |
GB1470409A (en) | Control apparatus for a two-way cable television system | |
NO975593D0 (en) | Audio equipment with connectors for telecommunications modules | |
GB1314457A (en) | Wired broadcasting systems | |
GB1049412A (en) | Improvements in or relating to electric circuits for use in signalling systems | |
FR2336017A1 (en) | Local transmission of telephone and TV signals - employs common network with electronic combination and separation of signals | |
GB1429514A (en) | Catv system | |
EP0510247A3 (en) | Method and apparatus for transmitting digital audio signals from audio studios to the individual transmitting stations of a broadcasting network | |
WO1992004794A3 (en) | Alarm and test system for a digital main line | |
ES8501184A1 (en) | A method for processing useful signals in a four-wire videointerphone and relative circuitry. | |
GB1297688A (en) | ||
GB1036262A (en) | Improvements in or relating to intercommunication systems | |
GB893477A (en) | Electric communication systems | |
FR2377675A1 (en) | Frequency multiplexed alarm signal system - allows large number of alarm signals to be transmitted over common cable (NL 19.7.78) | |
JPS56122555A (en) | Switching control system | |
GB1234186A (en) | ||
JPS5737942A (en) | Optical signal relay system | |
JPS54157023A (en) | Time division communication system | |
FR2271727A1 (en) | Cable television distribution system - has separate return channel from subscriber on telephone line to reduce noise | |
JPS5694895A (en) | Conference-type communication process system | |
JPS57178464A (en) | Calling system for branch telephone circuit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |