GB2205174B - Data tranmission network. - Google Patents
Data tranmission network.Info
- Publication number
- GB2205174B GB2205174B GB8806377A GB8806377A GB2205174B GB 2205174 B GB2205174 B GB 2205174B GB 8806377 A GB8806377 A GB 8806377A GB 8806377 A GB8806377 A GB 8806377A GB 2205174 B GB2205174 B GB 2205174B
- Authority
- GB
- United Kingdom
- Prior art keywords
- network
- data tranmission
- tranmission
- data
- tranmission network
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/407—Bus networks with decentralised control
- H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0128—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on electro-mechanical, magneto-mechanical, elasto-optic effects
- G02F1/0131—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence
- G02F1/0134—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence in optical waveguides
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
- H04B10/5051—Laser transmitters using external modulation using a series, i.e. cascade, combination of modulators
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8706272A GB8706272D0 (en) | 1987-03-17 | 1987-03-17 | Fibre optic telemetry |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8806377D0 GB8806377D0 (en) | 1988-04-13 |
GB2205174A GB2205174A (en) | 1988-11-30 |
GB2205174B true GB2205174B (en) | 1991-10-23 |
Family
ID=10614066
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8706272A Pending GB8706272D0 (en) | 1987-03-17 | 1987-03-17 | Fibre optic telemetry |
GB8806377A Expired - Fee Related GB2205174B (en) | 1987-03-17 | 1988-03-17 | Data tranmission network. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8706272A Pending GB8706272D0 (en) | 1987-03-17 | 1987-03-17 | Fibre optic telemetry |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB8706272D0 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7974182B2 (en) | 2004-03-31 | 2011-07-05 | British Telecommunications Public Limited Company | Evaluating the position of a disturbance |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7667849B2 (en) | 2003-09-30 | 2010-02-23 | British Telecommunications Public Limited Company | Optical sensor with interferometer for sensing external physical disturbance of optical communications link |
GB0322859D0 (en) | 2003-09-30 | 2003-10-29 | British Telecomm | Communication |
GB0421747D0 (en) | 2004-09-30 | 2004-11-03 | British Telecomm | Distributed backscattering |
US7848645B2 (en) | 2004-09-30 | 2010-12-07 | British Telecommunications Public Limited Company | Identifying or locating waveguides |
GB0427733D0 (en) | 2004-12-17 | 2005-01-19 | British Telecomm | Optical system |
ATE498954T1 (en) | 2004-12-17 | 2011-03-15 | British Telecomm | NETWORK ASSESSMENT |
GB0504579D0 (en) | 2005-03-04 | 2005-04-13 | British Telecomm | Communications system |
EP1853964B1 (en) | 2005-03-04 | 2009-06-24 | British Telecommunications Public Limited Company | Acousto-optical modulator arrangement |
EP1708388A1 (en) | 2005-03-31 | 2006-10-04 | British Telecommunications Public Limited Company | Communicating information |
EP1713301A1 (en) | 2005-04-14 | 2006-10-18 | BRITISH TELECOMMUNICATIONS public limited company | Method and apparatus for communicating sound over an optical link |
EP1729096A1 (en) | 2005-06-02 | 2006-12-06 | BRITISH TELECOMMUNICATIONS public limited company | Method and apparatus for determining the position of a disturbance in an optical fibre |
GB2433112B (en) | 2005-12-06 | 2008-07-09 | Schlumberger Holdings | Borehole telemetry system |
EP1987317B1 (en) | 2006-02-24 | 2013-07-17 | BRITISH TELECOMMUNICATIONS public limited company | Sensing a disturbance |
EP1826924A1 (en) | 2006-02-24 | 2007-08-29 | BRITISH TELECOMMUNICATIONS public limited company | Sensing a disturbance |
DE602007013874D1 (en) | 2006-02-24 | 2011-05-26 | British Telecomm | DETECTING A FAULT |
CN101410696B (en) | 2006-04-03 | 2011-01-05 | 英国电讯有限公司 | Evaluating the position of a disturbance |
GB2462876A (en) * | 2008-08-26 | 2010-03-03 | Cambridge Silicon Radio Ltd | Estimating the component of a signal via random sampling |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1488253A (en) * | 1974-12-19 | 1977-10-12 | Davies D | Telecommunication system |
GB2069799A (en) * | 1980-02-15 | 1981-08-26 | Philips Nv | Method for the transmission of data packets |
EP0069275A1 (en) * | 1981-07-02 | 1983-01-12 | Trancom AB | Apparatus for communicating with a fleet of vehicles |
EP0144190A2 (en) * | 1983-11-30 | 1985-06-12 | The Board Of Trustees Of The Leland Stanford Junior University | Single mode fiber optic single sideband modulator |
EP0153124A2 (en) * | 1984-02-17 | 1985-08-28 | The Board Of Trustees Of The Leland Stanford Junior University | Acousto-optic frequency shifter |
GB2166929A (en) * | 1984-11-07 | 1986-05-14 | Gen Electric Co Plc | Variable frame length t.d.m. transmission system |
EP0183420A2 (en) * | 1984-11-13 | 1986-06-04 | The Board Of Trustees Of The Leland Stanford Junior University | Optical fiber acousto-optic amplitude modulator |
EP0190923A2 (en) * | 1985-02-08 | 1986-08-13 | The Board Of Trustees Of The Leland Stanford Junior University | Acousto-optic frequency shifter utilizing multi-turn optical fiber |
EP0192887A2 (en) * | 1985-02-27 | 1986-09-03 | Litton Systems, Inc. | Fiber optic phase modulator |
-
1987
- 1987-03-17 GB GB8706272A patent/GB8706272D0/en active Pending
-
1988
- 1988-03-17 GB GB8806377A patent/GB2205174B/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1488253A (en) * | 1974-12-19 | 1977-10-12 | Davies D | Telecommunication system |
GB2069799A (en) * | 1980-02-15 | 1981-08-26 | Philips Nv | Method for the transmission of data packets |
EP0069275A1 (en) * | 1981-07-02 | 1983-01-12 | Trancom AB | Apparatus for communicating with a fleet of vehicles |
EP0144190A2 (en) * | 1983-11-30 | 1985-06-12 | The Board Of Trustees Of The Leland Stanford Junior University | Single mode fiber optic single sideband modulator |
EP0153124A2 (en) * | 1984-02-17 | 1985-08-28 | The Board Of Trustees Of The Leland Stanford Junior University | Acousto-optic frequency shifter |
GB2166929A (en) * | 1984-11-07 | 1986-05-14 | Gen Electric Co Plc | Variable frame length t.d.m. transmission system |
EP0183420A2 (en) * | 1984-11-13 | 1986-06-04 | The Board Of Trustees Of The Leland Stanford Junior University | Optical fiber acousto-optic amplitude modulator |
EP0190923A2 (en) * | 1985-02-08 | 1986-08-13 | The Board Of Trustees Of The Leland Stanford Junior University | Acousto-optic frequency shifter utilizing multi-turn optical fiber |
EP0192887A2 (en) * | 1985-02-27 | 1986-09-03 | Litton Systems, Inc. | Fiber optic phase modulator |
Non-Patent Citations (1)
Title |
---|
The Radio and Electronic Engineer Vol 49, No.9 September 1979 pages 460 to 466. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7974182B2 (en) | 2004-03-31 | 2011-07-05 | British Telecommunications Public Limited Company | Evaluating the position of a disturbance |
Also Published As
Publication number | Publication date |
---|---|
GB8806377D0 (en) | 1988-04-13 |
GB8706272D0 (en) | 1987-04-23 |
GB2205174A (en) | 1988-11-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2224141B (en) | Data communication. | |
EP0269746A4 (en) | Data communication equipment. | |
DE3577254D1 (en) | DATA TRANSMISSION NETWORK. | |
DE3883817D1 (en) | Data transmission system. | |
DE3887595D1 (en) | Multiple broadcast data transmission system. | |
GB8707848D0 (en) | Data processing network | |
HK182495A (en) | Data transmission system | |
GB2205174B (en) | Data tranmission network. | |
EP0234948A3 (en) | Data transmission system | |
DE3872145D1 (en) | DATA TRANSFER NETWORK. | |
GB8704525D0 (en) | Data transmission | |
GB2206461B (en) | Fault tolerant data transmission network | |
DE3784694D1 (en) | RADIO DATA TRANSMISSION SYSTEM. | |
GB2197566B (en) | Data transmission system | |
GB2206269B (en) | Data communication network. | |
DE3852471D1 (en) | Data transmission system. | |
GB8715278D0 (en) | Data transmission | |
GB8608450D0 (en) | Data transmission systems | |
GB2213024B (en) | Data transmission system | |
GB8623923D0 (en) | Digital data transmission system | |
DE69010613D1 (en) | DATA TRANSMISSION LINES. | |
GB2188518B (en) | Data transmission systems | |
GB8606603D0 (en) | Data transmission | |
GB8618206D0 (en) | Data transmission system | |
GB8705615D0 (en) | Data transmission |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930317 |