BE591914A - Système téléphonique à concentrateurs de lignes. - Google Patents

Système téléphonique à concentrateurs de lignes.

Info

Publication number
BE591914A
BE591914A BE591914A BE591914A BE591914A BE 591914 A BE591914 A BE 591914A BE 591914 A BE591914 A BE 591914A BE 591914 A BE591914 A BE 591914A BE 591914 A BE591914 A BE 591914A
Authority
BE
Belgium
Prior art keywords
telephone system
line concentrators
concentrators
line
telephone
Prior art date
Application number
BE591914A
Other languages
English (en)
Inventor
Bock Woodlee
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of BE591914A publication Critical patent/BE591914A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/02—Selecting arrangements for multiplex systems for frequency-division multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Selective Calling Equipment (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
BE591914A 1959-06-16 1960-06-15 Système téléphonique à concentrateurs de lignes. BE591914A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US820640A US3073906A (en) 1959-06-16 1959-06-16 Line concentrating telephone system

Publications (1)

Publication Number Publication Date
BE591914A true BE591914A (fr) 1960-10-03

Family

ID=25231355

Family Applications (1)

Application Number Title Priority Date Filing Date
BE591914A BE591914A (fr) 1959-06-16 1960-06-15 Système téléphonique à concentrateurs de lignes.

Country Status (4)

Country Link
US (1) US3073906A (fr)
BE (1) BE591914A (fr)
DE (1) DE1240138B (fr)
GB (1) GB948929A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366740A (en) * 1964-04-08 1968-01-30 Int Standard Electric Corp Control of remote concentrator telephone equipments
US3992589A (en) * 1970-01-29 1976-11-16 Siemens Aktiengesellschaft Frequency multiplex system for transmission of telephone and videophone channels
US3701849A (en) * 1970-02-09 1972-10-31 Bell Telephone Labor Inc Concentrator arrangement for wideband switching
GB1480749A (en) * 1974-03-16 1977-07-20 Communications Patents Ltd Wired broadcasting systems
US4112260A (en) * 1975-03-26 1978-09-05 Hitachi Denshi Kabushiki Kaisha AC type line concentrator
US4716585A (en) * 1985-04-05 1987-12-29 Datapoint Corporation Gain switched audio conferencing network
US4686698A (en) * 1985-04-08 1987-08-11 Datapoint Corporation Workstation for interfacing with a video conferencing network
US4710917A (en) * 1985-04-08 1987-12-01 Datapoint Corporation Video conferencing network
US5014267A (en) * 1989-04-06 1991-05-07 Datapoint Corporation Video conferencing network

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1071145B (fr) * 1959-12-17
DE1073554B (fr) * 1960-01-21
DE1049923B (de) * 1959-02-05 Nippon Telegraph and Telephone Public Corporation, Tokio Selektives Schaltsystem für Trägerfrequenzanlagen
BE494824A (fr) * 1949-03-29
NL86409C (fr) * 1949-10-26
BE500226A (fr) * 1949-12-24
US2754367A (en) * 1950-11-23 1956-07-10 Gen Electric Co Ltd Automatic exchange
GB767684A (en) * 1952-12-03 1957-02-06 Gen Electric Co Ltd Improvements in and relating to automatic telephone exchanges
US2932694A (en) * 1954-09-10 1960-04-12 Bell Telephone Labor Inc Rural carrier telephone transmission system
GB784522A (en) * 1954-10-19 1957-10-09 Gen Electric Co Ltd Improvements in and relating to automatic telephone systems
BE554165A (fr) * 1956-02-29

Also Published As

Publication number Publication date
DE1240138B (de) 1967-05-11
GB948929A (en) 1964-02-05
US3073906A (en) 1963-01-15

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