FR2412994A1 - Multiplexing system in two-wire telephone subscriber network - allows independent subscribers to send data and voice signals via same two-wire telephone line - Google Patents

Multiplexing system in two-wire telephone subscriber network - allows independent subscribers to send data and voice signals via same two-wire telephone line

Info

Publication number
FR2412994A1
FR2412994A1 FR7835937A FR7835937A FR2412994A1 FR 2412994 A1 FR2412994 A1 FR 2412994A1 FR 7835937 A FR7835937 A FR 7835937A FR 7835937 A FR7835937 A FR 7835937A FR 2412994 A1 FR2412994 A1 FR 2412994A1
Authority
FR
France
Prior art keywords
wire telephone
multiplexing system
send data
signals via
voice signals
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Withdrawn
Application number
FR7835937A
Other languages
French (fr)
Inventor
Wolfgang Kaiser
Hanns-Thilo Hagmeyer
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2412994A1 publication Critical patent/FR2412994A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals

Abstract

The multiplexing system allows two or more totally indpendent subscribers to use the same two-wire telephone line for digitally transmitting voice and/or data signals between subscriber terminals. This is accomplished using a D/A and A/D signal converter for each voice channel, a multiplexer between the two-wire line and the data and voice channels, a directional coupler to separate transmission directions, and a demultiplexer.
FR7835937A 1977-12-24 1978-12-21 Multiplexing system in two-wire telephone subscriber network - allows independent subscribers to send data and voice signals via same two-wire telephone line Withdrawn FR2412994A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772758109 DE2758109A1 (en) 1977-12-24 1977-12-24 SYSTEM FOR MULTIPLE USE OF A TWO-WIRE SUBSCRIBER CONNECTION CABLE IN THE TELEPHONE SWITCHING NETWORK

Publications (1)

Publication Number Publication Date
FR2412994A1 true FR2412994A1 (en) 1979-07-20

Family

ID=6027350

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7835937A Withdrawn FR2412994A1 (en) 1977-12-24 1978-12-21 Multiplexing system in two-wire telephone subscriber network - allows independent subscribers to send data and voice signals via same two-wire telephone line

Country Status (2)

Country Link
DE (1) DE2758109A1 (en)
FR (1) FR2412994A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472319A1 (en) * 1979-12-21 1981-06-26 Thomson Csf Mat Tel Subscriber multi-service phone station for digital transmission line - has main telephone extension module and telecommunication terminals, series connected and locally supplied
EP0034514A1 (en) * 1980-02-13 1981-08-26 Jean-Louis Dauphin Time division switching installation for lines carrying voice and data packets
FR2478915A1 (en) * 1980-03-20 1981-09-25 Int Standard Electric Corp TERMINAL SUBSCRIBER EQUIPMENT FOR DIGITAL SWITCHING SYSTEM
FR2498855A1 (en) * 1981-01-23 1982-07-30 Dauphin Jean Louis CHANNEL TIME DIVISION DIGITAL SWITCHING SYSTEM IN CIRCUIT AND PACKET MODE
FR2518858A1 (en) * 1981-12-23 1983-06-24 Jeumont Schneider DEVICE FOR TRANSMITTING SIGNALS ON A LINE ALSO PROVIDING A CONTINUOUS VOLTAGE SUPPLY
EP0485260A1 (en) * 1990-11-09 1992-05-13 France Telecom Digital multirate-multiplexing/demultiplexing method

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002188A1 (en) * 1980-01-22 1981-07-23 Siemens AG, 1000 Berlin und 8000 München REMOTE COPY-DIGITAL TRANSMISSION SYSTEM
DE3010702C2 (en) * 1980-03-20 1982-11-04 Standard Elektrik Lorenz Ag, 7000 Stuttgart Digital messaging system
DE3028155C2 (en) * 1980-07-25 1982-10-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digital subscriber line for telephony, including text and data services
DE3146317A1 (en) * 1981-11-23 1983-07-28 Philips Kommunikations Industrie AG, 8500 Nürnberg Method for forming a time-division multiplex signal from broadband channels or analog signals
DE3321416C2 (en) * 1983-06-14 1985-07-04 ANT Nachrichtentechnik GmbH, 7150 Backnang Emergency call transmission system
DE3324515A1 (en) * 1983-06-14 1985-01-17 ANT Nachrichtentechnik GmbH, 7150 Backnang Emergency call system
DE3321417C2 (en) * 1983-06-14 1985-07-04 ANT Nachrichtentechnik GmbH, 7150 Backnang Emergency call transmission system
DE3324516A1 (en) * 1983-06-14 1985-01-17 ANT Nachrichtentechnik GmbH, 7150 Backnang Emergency call system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1363433A (en) * 1971-12-09 1974-08-14 Standard Telephones Cables Ltd Dual purpose telecommunication system
FR2246147A1 (en) * 1973-09-27 1975-04-25 Siemens Ag
DE2621603A1 (en) * 1976-05-14 1977-11-17 Siemens Ag Independent transmission of PCM information and signalling words - uses words which are preceded by synchronisation word evaluated in detector

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1363433A (en) * 1971-12-09 1974-08-14 Standard Telephones Cables Ltd Dual purpose telecommunication system
FR2246147A1 (en) * 1973-09-27 1975-04-25 Siemens Ag
DE2621603A1 (en) * 1976-05-14 1977-11-17 Siemens Ag Independent transmission of PCM information and signalling words - uses words which are preceded by synchronisation word evaluated in detector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/78 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472319A1 (en) * 1979-12-21 1981-06-26 Thomson Csf Mat Tel Subscriber multi-service phone station for digital transmission line - has main telephone extension module and telecommunication terminals, series connected and locally supplied
EP0034514A1 (en) * 1980-02-13 1981-08-26 Jean-Louis Dauphin Time division switching installation for lines carrying voice and data packets
FR2478915A1 (en) * 1980-03-20 1981-09-25 Int Standard Electric Corp TERMINAL SUBSCRIBER EQUIPMENT FOR DIGITAL SWITCHING SYSTEM
FR2498855A1 (en) * 1981-01-23 1982-07-30 Dauphin Jean Louis CHANNEL TIME DIVISION DIGITAL SWITCHING SYSTEM IN CIRCUIT AND PACKET MODE
EP0057628A1 (en) * 1981-01-23 1982-08-11 Jean-Louis Dauphin Time division digital switching system for channels in circuit and packet mode
FR2518858A1 (en) * 1981-12-23 1983-06-24 Jeumont Schneider DEVICE FOR TRANSMITTING SIGNALS ON A LINE ALSO PROVIDING A CONTINUOUS VOLTAGE SUPPLY
EP0082791A1 (en) * 1981-12-23 1983-06-29 JEUMONT-SCHNEIDER Société anonyme dite: Signal transmission device over a line also assuring a D.C. current supply
EP0485260A1 (en) * 1990-11-09 1992-05-13 France Telecom Digital multirate-multiplexing/demultiplexing method
FR2669168A1 (en) * 1990-11-09 1992-05-15 Abiven Jacques MULTIPLEXING-DEMULTIPLEXING PROCESS MULTIDEBIT DIGITAL.

Also Published As

Publication number Publication date
DE2758109A1 (en) 1979-06-28

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Legal Events

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