DE3877527D1 - Optisches wahlnetzwerk. - Google Patents
Optisches wahlnetzwerk.Info
- Publication number
- DE3877527D1 DE3877527D1 DE8888310936T DE3877527T DE3877527D1 DE 3877527 D1 DE3877527 D1 DE 3877527D1 DE 8888310936 T DE8888310936 T DE 8888310936T DE 3877527 T DE3877527 T DE 3877527T DE 3877527 D1 DE3877527 D1 DE 3877527D1
- Authority
- DE
- Germany
- Prior art keywords
- optical
- receiver
- network
- switches
- multiplex
- 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 - Lifetime
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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878727260A GB8727260D0 (en) | 1987-11-20 | 1987-11-20 | Switched optical network |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3877527D1 true DE3877527D1 (de) | 1993-02-25 |
DE3877527T2 DE3877527T2 (de) | 1993-05-19 |
Family
ID=10627317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888310936T Expired - Lifetime DE3877527T2 (de) | 1987-11-20 | 1988-11-18 | Optisches wahlnetzwerk. |
Country Status (11)
Country | Link |
---|---|
US (1) | US5144465A (de) |
EP (1) | EP0317352B1 (de) |
JP (1) | JP2763167B2 (de) |
AT (1) | ATE84655T1 (de) |
AU (1) | AU617401B2 (de) |
CA (1) | CA1328308C (de) |
DE (1) | DE3877527T2 (de) |
ES (1) | ES2037847T3 (de) |
GB (1) | GB8727260D0 (de) |
HK (1) | HK129696A (de) |
WO (1) | WO1989005085A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8902746D0 (en) * | 1989-02-08 | 1989-03-30 | British Telecomm | Communications network |
US5235452A (en) * | 1989-06-02 | 1993-08-10 | Minister Of The Post Telecommunications And Space (Centre National D'etudes Des Telecommunications) | Process and switching matrix apparatus for optical transmission of signals by self-heterodyning |
FR2647987B1 (fr) * | 1989-06-02 | 1994-07-22 | France Etat | Procede de transmission optique de signaux par self-heterodynage et systeme de transmission avec matrice de commutation mettant en oeuvre un tel procede |
JP2692316B2 (ja) * | 1989-11-20 | 1997-12-17 | 日本電気株式会社 | 波長分割光交換機 |
EP0587930B1 (de) * | 1992-09-16 | 2004-02-04 | Siemens Aktiengesellschaft | Verfahren zur Durchschaltung von optischen Nachrichtenzellen |
GB9220592D0 (en) * | 1992-09-30 | 1992-11-11 | Plessey Telecomm | Optic switching |
JP2928046B2 (ja) * | 1993-04-16 | 1999-07-28 | 日本電気株式会社 | 光ネットワ−ク及びその障害回復方式 |
GB9410544D0 (en) * | 1994-05-26 | 1994-07-13 | Northern Telecom Ltd | Switched optical interconnect |
JP3450446B2 (ja) * | 1994-08-03 | 2003-09-22 | キヤノン株式会社 | 光学式変位検出装置 |
DE4433691A1 (de) * | 1994-09-21 | 1996-03-28 | Siemens Ag | Verfahren zur Schaltung einer Ersatzstrecke |
JP3114801B2 (ja) * | 1997-07-07 | 2000-12-04 | 日本電気株式会社 | 光通信ネットワーク装置 |
US6631018B1 (en) | 1997-08-27 | 2003-10-07 | Nortel Networks Limited | WDM optical network with passive pass-through at each node |
US6151336A (en) * | 1998-02-11 | 2000-11-21 | Sorrento Networks, Inc. | Time division multiplexing expansion subsystem |
US6400478B1 (en) | 1998-04-02 | 2002-06-04 | Sorrento Networks, Inc. | Wavelength-division-multiplexed optical transmission system with expanded bidirectional transmission capacity over a single fiber |
US6298103B1 (en) | 1998-06-16 | 2001-10-02 | Sorrento Networks Corporation | Flexible clock and data recovery module for a DWDM optical communication system with multiple clock rates |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3755676A (en) * | 1972-01-24 | 1973-08-28 | Bell Telephone Labor Inc | Spacially multiplexed optical beam communication system |
US3920983A (en) * | 1973-10-10 | 1975-11-18 | Gte Laboratories Inc | Multi-channel optical communications system utilizing multi wavelength dye laser |
FR2458195B1 (fr) * | 1979-05-30 | 1986-02-28 | Materiel Telephonique | Commutateur optique a tres grand nombre de voies |
US4467468A (en) * | 1981-12-28 | 1984-08-21 | At&T Bell Laboratories | Optical communication system |
JPS58196796A (ja) * | 1982-05-12 | 1983-11-16 | Nec Corp | 光交換回路 |
US4783850A (en) * | 1984-03-07 | 1988-11-08 | Canadian Patents And Development Limited-Societe Canadienne Des Brevets Et D'exploitation Limitee | Optoelectronic compound switching matrix |
JPS60237793A (ja) * | 1984-05-11 | 1985-11-26 | Nec Corp | 広帯域通話路 |
US4658394A (en) * | 1984-12-12 | 1987-04-14 | Bell Communications Research, Inc. | Optical transmission |
GB8500635D0 (en) * | 1985-01-10 | 1985-02-13 | British Telecomm | Optical networks |
US4642804A (en) * | 1985-05-10 | 1987-02-10 | Bell Communications Research, Inc. | Shared laser lightwave transmission systems |
JPH0666981B2 (ja) * | 1985-06-14 | 1994-08-24 | 日本電信電話株式会社 | 波長多重信号用光スイツチ |
JPS6364035A (ja) * | 1986-09-04 | 1988-03-22 | Nec Corp | 光波長変換回路 |
JPS62123898A (ja) * | 1985-11-22 | 1987-06-05 | Nec Corp | 波長多重光交換機および波長多重光通信網 |
DE3689583T2 (de) * | 1985-11-22 | 1994-08-25 | Nec Corp | Optisches Wellenlängenmultiplexvermittlungssystem mit Wellenlängenschaltlichtmodulatoren. |
CA1284904C (en) * | 1986-01-31 | 1991-06-18 | Kazuo Hajikano | Optical space switch |
CA1279414C (en) * | 1987-06-26 | 1991-01-22 | Makoto Nishio | Apparatus for discriminating an optical signal from others and an apparatus for tuning an optical wavelength filter used in the same |
JPH0834479B2 (ja) * | 1987-10-22 | 1996-03-29 | 国際電信電話株式会社 | 光パケット交換方式 |
-
1987
- 1987-11-20 GB GB878727260A patent/GB8727260D0/en active Pending
-
1988
- 1988-11-18 EP EP88310936A patent/EP0317352B1/de not_active Expired - Lifetime
- 1988-11-18 JP JP1500069A patent/JP2763167B2/ja not_active Expired - Lifetime
- 1988-11-18 ES ES198888310936T patent/ES2037847T3/es not_active Expired - Lifetime
- 1988-11-18 AU AU28056/89A patent/AU617401B2/en not_active Ceased
- 1988-11-18 DE DE8888310936T patent/DE3877527T2/de not_active Expired - Lifetime
- 1988-11-18 WO PCT/GB1988/001019 patent/WO1989005085A1/en unknown
- 1988-11-18 US US07/378,208 patent/US5144465A/en not_active Expired - Lifetime
- 1988-11-18 AT AT88310936T patent/ATE84655T1/de not_active IP Right Cessation
- 1988-11-18 CA CA000583547A patent/CA1328308C/en not_active Expired - Lifetime
-
1996
- 1996-07-18 HK HK129696A patent/HK129696A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2763167B2 (ja) | 1998-06-11 |
DE3877527T2 (de) | 1993-05-19 |
ATE84655T1 (de) | 1993-01-15 |
WO1989005085A1 (en) | 1989-06-01 |
ES2037847T3 (es) | 1993-07-01 |
CA1328308C (en) | 1994-04-05 |
US5144465A (en) | 1992-09-01 |
JPH02502150A (ja) | 1990-07-12 |
EP0317352B1 (de) | 1993-01-13 |
EP0317352A1 (de) | 1989-05-24 |
AU2805689A (en) | 1989-06-14 |
GB8727260D0 (en) | 1987-12-23 |
AU617401B2 (en) | 1991-11-28 |
HK129696A (en) | 1996-07-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |