HK1001009A1 - Method of and device for recognizing optically encoded signals - Google Patents

Method of and device for recognizing optically encoded signals

Info

Publication number
HK1001009A1
HK1001009A1 HK97102524A HK97102524A HK1001009A1 HK 1001009 A1 HK1001009 A1 HK 1001009A1 HK 97102524 A HK97102524 A HK 97102524A HK 97102524 A HK97102524 A HK 97102524A HK 1001009 A1 HK1001009 A1 HK 1001009A1
Authority
HK
Hong Kong
Prior art keywords
encoded signals
optically encoded
recognizing
recognizing optically
signals
Prior art date
Application number
HK97102524A
Other languages
English (en)
Inventor
David Cotter
Original Assignee
British Telecomm
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
Priority claimed from GB939318799A external-priority patent/GB9318799D0/en
Application filed by British Telecomm filed Critical British Telecomm
Publication of HK1001009A1 publication Critical patent/HK1001009A1/xx

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
    • H04Q11/0003—Details
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06E—OPTICAL COMPUTING DEVICES; COMPUTING DEVICES USING OTHER RADIATIONS WITH SIMILAR PROPERTIES
    • G06E1/00—Devices for processing exclusively digital data
    • G06E1/02—Devices for processing exclusively digital data operating upon the order or content of the data handled
    • 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
    • H04Q11/0062—Network aspects
    • H04Q11/0066—Provisions for optical burst or packet networks
    • 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
    • H04Q2011/0007—Construction
    • H04Q2011/0009—Construction using wavelength filters
    • 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
    • H04Q2011/0007—Construction
    • H04Q2011/0013—Construction using gating amplifiers
    • 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
    • H04Q2011/0007—Construction
    • H04Q2011/0015—Construction using splitting combining
    • 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
    • H04Q2011/0007—Construction
    • H04Q2011/002—Construction using optical delay lines or optical buffers or optical recirculation
    • 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
    • H04Q2011/0007—Construction
    • H04Q2011/0035—Construction using miscellaneous components, e.g. circulator, polarisation, acousto/thermo optical
    • 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
    • H04Q2011/0037—Operation
    • H04Q2011/0041—Optical control

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Communication System (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Holo Graphy (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
HK97102524A 1993-03-02 1997-12-19 Method of and device for recognizing optically encoded signals HK1001009A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP93301568 1993-03-02
GB939318799A GB9318799D0 (en) 1993-09-10 1993-09-10 Optical codeword recognition
PCT/GB1994/000397 WO1994021088A2 (fr) 1993-03-02 1994-03-01 Signaux a codage optique

Publications (1)

Publication Number Publication Date
HK1001009A1 true HK1001009A1 (en) 1998-05-15

Family

ID=26134202

Family Applications (1)

Application Number Title Priority Date Filing Date
HK97102524A HK1001009A1 (en) 1993-03-02 1997-12-19 Method of and device for recognizing optically encoded signals

Country Status (12)

Country Link
US (1) US5900956A (fr)
JP (1) JP3512800B2 (fr)
KR (1) KR100321073B1 (fr)
CN (1) CN1067475C (fr)
AU (1) AU690097B2 (fr)
CA (1) CA2157492C (fr)
DE (1) DE69404130T2 (fr)
ES (1) ES2105652T3 (fr)
HK (1) HK1001009A1 (fr)
NZ (1) NZ261896A (fr)
SG (1) SG49721A1 (fr)
WO (1) WO1994021088A2 (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9404788D0 (en) * 1994-03-11 1994-04-27 British Telecomm Optical device
DE69526342T2 (de) * 1994-05-23 2002-10-31 British Telecomm Verarbeitung optischer pakete
US5999287A (en) * 1994-12-23 1999-12-07 British Telecommunications Public Limited Company Node in optical TDM network
NL1000682C2 (nl) * 1995-05-09 1996-11-12 Nederland Ptt Signaal Processor.
WO1998044641A2 (fr) 1997-02-14 1998-10-08 Massachusetts Institute Of Technology Convetisseur de debit binaire optique
US6175433B1 (en) * 1997-06-17 2001-01-16 Massachusetts Institute Of Technology Optical bit rate converter
GB9712020D0 (en) * 1997-06-09 1997-08-06 Northern Telecom Ltd Equalisation, pulse shaping and regeneration of optical signals
GB9719895D0 (en) * 1997-09-18 1997-11-19 British Telecomm A method of obtaining an optical signal stream
US6327154B1 (en) 1998-11-06 2001-12-04 Sierra Wireless, Inc. Battery case for PCMCIA card modem with antenna
EP1139587B1 (fr) * 2000-03-27 2006-10-18 BRITISH TELECOMMUNICATIONS public limited company Méthode et dispositif pour mesurer la gigue temporelle d'un signal optique
US6515792B1 (en) * 2000-04-12 2003-02-04 Massachusetts Institute Of Technology Fast optical wavelength shifter
US6810407B1 (en) 2000-07-14 2004-10-26 Lucent Technologies Inc. Optical boolean logic devices for data encryption
AU2002223987A1 (en) * 2000-11-08 2002-05-21 Al J. C. Baur System and method for improving network router efficiency and alleviating network bottlenecks and overloads
US20030128987A1 (en) * 2000-11-08 2003-07-10 Yaron Mayer System and method for improving the efficiency of routers on the internet and/or cellular networks an/or other networks and alleviating bottlenecks and overloads on the network
US6504612B2 (en) 2000-11-14 2003-01-07 Georgia Tech Research Corporation Electromagnetic wave analyzer
US6636337B2 (en) * 2001-02-09 2003-10-21 Nortel Networks Limited Optical switching device based on stable, non-absorbing optical hard limiters
US6649476B2 (en) * 2001-02-15 2003-11-18 Micron Technology, Inc. Monotonic dynamic-static pseudo-NMOS logic circuit and method of forming a logic gate array
US6603904B1 (en) 2001-03-28 2003-08-05 Jaffalight Holdings Llc All optical narrow pulse generator and switch for dense time division multiplexing and code division multiplexing
GB2378553B (en) * 2001-08-08 2004-11-10 Corning Ltd Bit Differential Processing
AU2002366987A1 (en) * 2001-12-28 2003-07-30 Al Baur System and method for improving network router efficiency and alleviating network bottlenecks and overloads
GB0525234D0 (en) 2005-12-12 2006-01-18 Qinetiq Ltd Correlation apparatus
EP2119074A1 (fr) 2007-03-15 2009-11-18 Telefonaktiebolaget LM Ericsson (PUBL) N ud de communications et procédé de routage de signaux par paquets de données optiques
WO2009015689A1 (fr) 2007-07-31 2009-02-05 Telefonaktiebolaget Lm Ericsson (Publ) Commutateur batcher banyan tout optique, commutateur batcher, commutateur banyan et gestionnaire de contention

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4519046A (en) * 1979-12-09 1985-05-21 Cole Trevor W Signal processing apparatus and method
JPS62232625A (ja) * 1986-04-02 1987-10-13 Nec Corp 光デイジタル信号一致検出回路
JPH07114409B2 (ja) * 1988-06-29 1995-12-06 松下電器産業株式会社 ループ状データ伝送装置
US4918635A (en) * 1988-11-15 1990-04-17 Yao Li Ultrafast digital photonic signal processing using optical noncollinear second harmonic generation
US5060305A (en) * 1989-08-29 1991-10-22 The Trustees Of Princeton University Self clocked, self routed photonic switch
WO1991018485A1 (fr) * 1990-05-23 1991-11-28 Ascom Tech Ag Unite de reconnaissance de mots de code et son utilisation
US5239399A (en) * 1991-08-22 1993-08-24 Radiant Technologies Electrical-optical interface device
GB9200897D0 (en) * 1992-01-16 1992-03-11 British Telecomm Optical processing in asynchronous transfer mode network
IT1272079B (it) * 1993-12-16 1997-06-11 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per la sincronizzazione fine di celle atm in nodi atm ottici

Also Published As

Publication number Publication date
ES2105652T3 (es) 1997-10-16
NZ261896A (en) 1997-07-27
SG49721A1 (en) 1998-06-15
WO1994021088A2 (fr) 1994-09-15
AU6114094A (en) 1994-09-26
JP3512800B2 (ja) 2004-03-31
AU690097B2 (en) 1998-04-23
WO1994021088A3 (fr) 1994-12-22
CA2157492A1 (fr) 1994-09-15
CN1119044A (zh) 1996-03-20
US5900956A (en) 1999-05-04
DE69404130D1 (de) 1997-08-14
DE69404130T2 (de) 1997-12-11
CN1067475C (zh) 2001-06-20
KR100321073B1 (ko) 2002-06-20
KR960701570A (ko) 1996-02-24
CA2157492C (fr) 2000-05-09
JPH08507389A (ja) 1996-08-06

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)