GB8605574D0 - Switching systems - Google Patents

Switching systems

Info

Publication number
GB8605574D0
GB8605574D0 GB868605574A GB8605574A GB8605574D0 GB 8605574 D0 GB8605574 D0 GB 8605574D0 GB 868605574 A GB868605574 A GB 868605574A GB 8605574 A GB8605574 A GB 8605574A GB 8605574 D0 GB8605574 D0 GB 8605574D0
Authority
GB
United Kingdom
Prior art keywords
switching systems
switching
systems
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
GB868605574A
Other versions
GB2172174B (en
GB2172174A (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.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of GB8605574D0 publication Critical patent/GB8605574D0/en
Publication of GB2172174A publication Critical patent/GB2172174A/en
Application granted granted Critical
Publication of GB2172174B publication Critical patent/GB2172174B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0052—Interconnection of switches
GB8605574A 1985-03-07 1986-03-06 Switching systems Expired GB2172174B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858505942A GB8505942D0 (en) 1985-03-07 1985-03-07 Switching systems

Publications (3)

Publication Number Publication Date
GB8605574D0 true GB8605574D0 (en) 1986-04-09
GB2172174A GB2172174A (en) 1986-09-10
GB2172174B GB2172174B (en) 1989-06-14

Family

ID=10575616

Family Applications (2)

Application Number Title Priority Date Filing Date
GB858505942A Pending GB8505942D0 (en) 1985-03-07 1985-03-07 Switching systems
GB8605574A Expired GB2172174B (en) 1985-03-07 1986-03-06 Switching systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB858505942A Pending GB8505942D0 (en) 1985-03-07 1985-03-07 Switching systems

Country Status (1)

Country Link
GB (2) GB8505942D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363228A (en) * 1993-03-05 1994-11-08 General Electric Company Optical device with spatial light modulators for switching arbitrarily polarized light
US6366713B1 (en) * 1998-09-04 2002-04-02 Tellabs Operations, Inc. Strictly non-blocking optical switch core having optimized switching architecture based on reciprocity conditions
CA2354446A1 (en) * 2000-11-22 2002-05-22 Blaine Hobson An optical switch and method of switching optical signals

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL268731A (en) * 1959-08-26
BE757605A (en) * 1969-10-21 1971-04-01 Western Electric Co BIPOLAR TWO DIRECTION DIODE SWITCH
FR2512620B2 (en) * 1981-02-13 1988-02-05 France Etat MATRIX OPTICAL CONCENTRATOR-DISTRIBUTOR
US4783851A (en) * 1984-01-27 1988-11-08 Yokogawa Electric Corporation Optical communication system

Also Published As

Publication number Publication date
GB8505942D0 (en) 1985-04-11
GB2172174B (en) 1989-06-14
GB2172174A (en) 1986-09-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950306