FR2286563A1 - Multiple access telephone system for data - has stations connected in parallel to single loop coaxial cable - Google Patents

Multiple access telephone system for data - has stations connected in parallel to single loop coaxial cable

Info

Publication number
FR2286563A1
FR2286563A1 FR7432654A FR7432654A FR2286563A1 FR 2286563 A1 FR2286563 A1 FR 2286563A1 FR 7432654 A FR7432654 A FR 7432654A FR 7432654 A FR7432654 A FR 7432654A FR 2286563 A1 FR2286563 A1 FR 2286563A1
Authority
FR
France
Prior art keywords
coaxial cable
parallel
data
multiple access
telephone system
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.)
Granted
Application number
FR7432654A
Other languages
French (fr)
Other versions
FR2286563B1 (en
Inventor
Jean-Edgar Picquendar
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7432654A priority Critical patent/FR2286563A1/en
Publication of FR2286563A1 publication Critical patent/FR2286563A1/en
Application granted granted Critical
Publication of FR2286563B1 publication Critical patent/FR2286563B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

The system consists of a coaxial cable either looped or terminated in a characteristic impedance. Stations are linked to the coaxial cable by couplers with selection by a control station. Coaxial cable permits large bandwidth, high frequency signals modulated by frequency division multiplex. Separate channels control calls and form selected interstation channels. Alternatives described are pulse codes, for each station, amplitude modulated by speech, and time division multiplex after conversion of analogue speech to digital signals.
FR7432654A 1974-09-27 1974-09-27 Multiple access telephone system for data - has stations connected in parallel to single loop coaxial cable Granted FR2286563A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7432654A FR2286563A1 (en) 1974-09-27 1974-09-27 Multiple access telephone system for data - has stations connected in parallel to single loop coaxial cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7432654A FR2286563A1 (en) 1974-09-27 1974-09-27 Multiple access telephone system for data - has stations connected in parallel to single loop coaxial cable

Publications (2)

Publication Number Publication Date
FR2286563A1 true FR2286563A1 (en) 1976-04-23
FR2286563B1 FR2286563B1 (en) 1977-03-25

Family

ID=9143514

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7432654A Granted FR2286563A1 (en) 1974-09-27 1974-09-27 Multiple access telephone system for data - has stations connected in parallel to single loop coaxial cable

Country Status (1)

Country Link
FR (1) FR2286563A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1466933A (en) * 1965-02-05 1967-01-20 Int Standard Electric Corp Improvements to automatic telephone systems
FR2011410A1 (en) * 1968-06-21 1970-02-27 Int Standard Electric Corp
DE1806251A1 (en) * 1968-10-09 1970-07-02 Telefunken Patent Method for the transmission of separate information
FR2020210A1 (en) * 1968-10-09 1970-07-10 Telefunken Gmbh
US3573379A (en) * 1969-03-03 1971-04-06 Bendix Corp Communications system with frequency and time division techniques

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1466933A (en) * 1965-02-05 1967-01-20 Int Standard Electric Corp Improvements to automatic telephone systems
FR2011410A1 (en) * 1968-06-21 1970-02-27 Int Standard Electric Corp
DE1806251A1 (en) * 1968-10-09 1970-07-02 Telefunken Patent Method for the transmission of separate information
FR2020210A1 (en) * 1968-10-09 1970-07-10 Telefunken Gmbh
US3573379A (en) * 1969-03-03 1971-04-06 Bendix Corp Communications system with frequency and time division techniques

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
"NACRICHTEN-VERMITTLUNG MIT SEQUENZTECHNIK" *
HUBNER *
NO. 9, VOL.27, SEPTEMBRE 1973 *
PAGES 192 A 195 *
US3723760REVU DT "INTERNATIONALE ELEKTRONISCHE RUNDSCHAU" *

Also Published As

Publication number Publication date
FR2286563B1 (en) 1977-03-25

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Legal Events

Date Code Title Description
ST Notification of lapse