DE3851105D1 - Bitsynchronisation für optische Übertragungsnetzwerke. - Google Patents
Bitsynchronisation für optische Übertragungsnetzwerke.Info
- Publication number
- DE3851105D1 DE3851105D1 DE3851105T DE3851105T DE3851105D1 DE 3851105 D1 DE3851105 D1 DE 3851105D1 DE 3851105 T DE3851105 T DE 3851105T DE 3851105 T DE3851105 T DE 3851105T DE 3851105 D1 DE3851105 D1 DE 3851105D1
- Authority
- DE
- Germany
- Prior art keywords
- junction
- error signal
- optical transmission
- bit synchronization
- transmission networks
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/027—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Small-Scale Networks (AREA)
- Dc Digital Transmission (AREA)
- Time-Division Multiplex Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB878716749A GB8716749D0 (en) | 1987-07-16 | 1987-07-16 | Bit synchronisation for optical networks |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3851105D1 true DE3851105D1 (de) | 1994-09-22 |
DE3851105T2 DE3851105T2 (de) | 1995-02-23 |
Family
ID=10620744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3851105T Expired - Lifetime DE3851105T2 (de) | 1987-07-16 | 1988-07-07 | Bitsynchronisation für optische Übertragungsnetzwerke. |
Country Status (11)
Country | Link |
---|---|
US (1) | US4982446A (de) |
EP (1) | EP0300649B1 (de) |
JP (1) | JP2601518B2 (de) |
AT (1) | ATE110203T1 (de) |
CA (1) | CA1301251C (de) |
DE (1) | DE3851105T2 (de) |
DK (1) | DK172568B1 (de) |
ES (1) | ES2056931T3 (de) |
FI (1) | FI92447C (de) |
GB (1) | GB8716749D0 (de) |
NO (1) | NO300350B1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5392147A (en) * | 1991-10-21 | 1995-02-21 | Nec Corporation | Optical trunk transmission system and an optical repeater circuit |
US5299044A (en) * | 1992-08-24 | 1994-03-29 | At&T Bell Laboratories | Ranging method for use in TDMA systems on tree-and-branch optical networks |
JP3143554B2 (ja) * | 1993-12-09 | 2001-03-07 | キヤノン株式会社 | 光通信方法及び光通信システム |
JP2962219B2 (ja) * | 1996-02-26 | 1999-10-12 | 日本電気株式会社 | 光受信器 |
US6571030B1 (en) | 1999-11-02 | 2003-05-27 | Xros, Inc. | Optical cross-connect switching system |
US6650803B1 (en) * | 1999-11-02 | 2003-11-18 | Xros, Inc. | Method and apparatus for optical to electrical to optical conversion in an optical cross-connect switch |
US6792174B1 (en) | 1999-11-02 | 2004-09-14 | Nortel Networks Limited | Method and apparatus for signaling between an optical cross-connect switch and attached network equipment |
US6597826B1 (en) | 1999-11-02 | 2003-07-22 | Xros, Inc. | Optical cross-connect switching system with bridging, test access and redundancy |
US6882765B1 (en) | 1999-11-02 | 2005-04-19 | Xros, Inc. | Connection protection between clients and optical cross-connect switches |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1158739A (en) * | 1980-04-30 | 1983-12-13 | William Rodman | Distributed network synchronization system |
JPS5916453B2 (ja) * | 1981-12-03 | 1984-04-16 | 株式会社リコー | 光デ−タ通信システム |
CA1227844A (en) * | 1983-09-07 | 1987-10-06 | Michael T.H. Hewitt | Communications network having a single node and a plurality of outstations |
US4606023A (en) * | 1984-05-31 | 1986-08-12 | Applied Dynamic Research, Inc. | Guard time elimination in a time-division multiplexed, active star-coupled, half-duplex mode, synchronous communications network |
-
1987
- 1987-07-16 GB GB878716749A patent/GB8716749D0/en active Pending
-
1988
- 1988-07-07 AT AT88306229T patent/ATE110203T1/de not_active IP Right Cessation
- 1988-07-07 DE DE3851105T patent/DE3851105T2/de not_active Expired - Lifetime
- 1988-07-07 EP EP88306229A patent/EP0300649B1/de not_active Expired - Lifetime
- 1988-07-07 ES ES88306229T patent/ES2056931T3/es not_active Expired - Lifetime
- 1988-07-12 US US07/217,781 patent/US4982446A/en not_active Expired - Lifetime
- 1988-07-13 JP JP63172811A patent/JP2601518B2/ja not_active Expired - Lifetime
- 1988-07-13 CA CA000571917A patent/CA1301251C/en not_active Expired - Lifetime
- 1988-07-15 FI FI883369A patent/FI92447C/fi not_active IP Right Cessation
- 1988-07-15 NO NO883159A patent/NO300350B1/no not_active IP Right Cessation
- 1988-07-15 DK DK198803993A patent/DK172568B1/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI883369A0 (fi) | 1988-07-15 |
ES2056931T3 (es) | 1994-10-16 |
CA1301251C (en) | 1992-05-19 |
ATE110203T1 (de) | 1994-09-15 |
DK399388A (da) | 1989-01-17 |
JP2601518B2 (ja) | 1997-04-16 |
NO883159L (no) | 1989-01-17 |
DK399388D0 (da) | 1988-07-15 |
EP0300649B1 (de) | 1994-08-17 |
DE3851105T2 (de) | 1995-02-23 |
US4982446A (en) | 1991-01-01 |
NO883159D0 (no) | 1988-07-15 |
EP0300649A1 (de) | 1989-01-25 |
NO300350B1 (no) | 1997-05-12 |
FI92447B (fi) | 1994-07-29 |
FI92447C (fi) | 1994-11-10 |
DK172568B1 (da) | 1999-01-18 |
GB8716749D0 (en) | 1987-08-19 |
JPH01126037A (ja) | 1989-05-18 |
FI883369A (fi) | 1989-01-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |