GB1344001A - Communication systems - Google Patents

Communication systems

Info

Publication number
GB1344001A
GB1344001A GB2112171A GB2112171A GB1344001A GB 1344001 A GB1344001 A GB 1344001A GB 2112171 A GB2112171 A GB 2112171A GB 2112171 A GB2112171 A GB 2112171A GB 1344001 A GB1344001 A GB 1344001A
Authority
GB
United Kingdom
Prior art keywords
video
audio
trunks
idle
marker
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.)
Expired
Application number
GB2112171A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Inc filed Critical Western Electric Co Inc
Publication of GB1344001A publication Critical patent/GB1344001A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Telephonic Communication Services (AREA)
GB2112171A 1970-02-09 1971-04-19 Communication systems Expired GB1344001A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US991570A 1970-02-09 1970-02-09
US969170A 1970-02-09 1970-02-09
AU25175/71A AU462216B1 (en) 1970-02-09 1971-02-08 Communication systems

Publications (1)

Publication Number Publication Date
GB1344001A true GB1344001A (en) 1974-01-16

Family

ID=27152927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2112171A Expired GB1344001A (en) 1970-02-09 1971-04-19 Communication systems

Country Status (7)

Country Link
US (2) US3662110A (enExample)
AU (1) AU462216B1 (enExample)
BE (1) BE762630A (enExample)
DE (2) DE2104864A1 (enExample)
FR (1) FR2094912A5 (enExample)
GB (1) GB1344001A (enExample)
NL (2) NL7101615A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126843A (en) * 1982-09-13 1984-03-28 Western Electric Co Bulk/interactive data switching system
GB2132446A (en) * 1982-12-01 1984-07-04 Standard Telephones Cables Ltd Telecommunication exchange system

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3766324A (en) * 1971-10-26 1973-10-16 Stromberg Carlson Corp Auxiliary switching system controlled by regular telephone switching system
US3990046A (en) * 1974-06-12 1976-11-02 Interactive Systems, Inc. Multiple terminal computer system with mixed terminal data reception rates
FR2531290A1 (fr) * 1982-07-30 1984-02-03 Poirier Alain Reseau de videocommunication entre des terminaux visiophoniques et une banque d'images
DE3309403A1 (de) * 1983-03-16 1984-09-20 Standard Elektrik Lorenz Ag, 7000 Stuttgart Integriertes nachrichtensystem und verfahren zum aufbauen von bildfernsprechverbindungen in einem solchen nachrichtensystem
DE3323573A1 (de) * 1983-06-30 1985-01-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Integriertes nachrichtensystem
FR2562746B1 (fr) * 1984-04-10 1986-08-08 Sorriaux Pierre Autocommutateur a matrice de commutation video
US4760442A (en) 1985-07-10 1988-07-26 American Telephone And Telegraph Company, At&T Bell Laboratories Wideband digital signal distribution system
US5202957A (en) * 1990-08-09 1993-04-13 Future Communications Full motion video telephone system
US5434850A (en) 1993-06-17 1995-07-18 Skydata Corporation Frame relay protocol-based multiplex switching scheme for satellite
US6771617B1 (en) 1993-06-17 2004-08-03 Gilat Satellite Networks, Ltd. Frame relay protocol-based multiplex switching scheme for satellite mesh network
US5751338A (en) * 1994-12-30 1998-05-12 Visionary Corporate Technologies Methods and systems for multimedia communications via public telephone networks
US6972786B1 (en) 1994-12-30 2005-12-06 Collaboration Properties, Inc. Multimedia services using central office
US6346964B1 (en) * 1996-12-31 2002-02-12 Video Networkcommunications, Inc. Interoffice broadband communication system using twisted pair telephone wires
US6181693B1 (en) 1998-10-08 2001-01-30 High Speed Video, L.L.C. High speed video transmission over telephone lines
US9628294B1 (en) 2011-03-23 2017-04-18 Amazon Technologies, Inc. Methods and apparatus for remapping public network addresses on a network to an external network via a private communications channel
US8751691B1 (en) * 2011-03-23 2014-06-10 Amazon Technologies, Inc. Methods and apparatus for remapping public network addresses on a network to an external network via an intermediate network

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073906A (en) * 1959-06-16 1963-01-15 Bell Telephone Labor Inc Line concentrating telephone system
US3226484A (en) * 1961-11-17 1965-12-28 Bell Telephone Labor Inc Time division telephone signaling
US3335226A (en) * 1963-09-27 1967-08-08 Bell Telephone Labor Inc Combined telephone and data switching system
US3573377A (en) * 1969-02-24 1971-04-06 Bell Telephone Labor Inc Equipment to coordinate establishment of audio and video connections through switching systems
US3612767A (en) * 1969-06-11 1971-10-12 Bell Telephone Labor Inc Equipment for selectively establishing audio and wideband communication paths through two autonomous switching systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126843A (en) * 1982-09-13 1984-03-28 Western Electric Co Bulk/interactive data switching system
GB2132446A (en) * 1982-12-01 1984-07-04 Standard Telephones Cables Ltd Telecommunication exchange system

Also Published As

Publication number Publication date
US3662110A (en) 1972-05-09
AU462216B1 (en) 1972-08-10
DE2104863A1 (de) 1971-08-19
BE762630A (fr) 1971-07-16
NL7101615A (enExample) 1971-08-11
US3701849A (en) 1972-10-31
DE2104864A1 (de) 1971-08-26
NL7101635A (enExample) 1971-08-11
FR2094912A5 (enExample) 1972-02-04

Similar Documents

Publication Publication Date Title
GB1344001A (en) Communication systems
GB1284241A (en) Improvements in or relating to communication arrangements
NL137733C (enExample)
GB734650A (en) Improvements in or relating to electrical communication systems
US3178516A (en) Call forwarding arrangement
GB1336931A (en) Communication systems
US2929881A (en) Terminal-per-station telephone partyline switching system
US2806088A (en) Communication system
US3493686A (en) Telephone switching system serving long customer loops and short customer loops
GB1360477A (en) Telephone systems
US3906165A (en) Line circuit in automatic switching system
US3513262A (en) All-busy trunk signalling in common control telephone switchboards
US1809039A (en) Telephone exchange system
US3814862A (en) Matrix-protecting supervisory arrangement for a communication switching system
US3571531A (en) Selective automatic service observing in communication systems
US3590165A (en) Switching system having junctor circuits for holding established network connections
US2355251A (en) Telephone system
US3175044A (en) Private branch exchange system with camp on facilities
US2718557A (en) Auxiliary-service telephone system
US3310630A (en) Circuit arrangement for automatic telephone systems with different kinds of telephone communications
US2144866A (en) Telephone system
US1836589A (en) Rural telephone system
US2938959A (en) Relayless line circuit
US1547577A (en) Connecting circuits
US1925696A (en) Telephone system

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee