GB2268016B - Optical communication system - Google Patents

Optical communication system

Info

Publication number
GB2268016B
GB2268016B GB8322904A GB8322904A GB2268016B GB 2268016 B GB2268016 B GB 2268016B GB 8322904 A GB8322904 A GB 8322904A GB 8322904 A GB8322904 A GB 8322904A GB 2268016 B GB2268016 B GB 2268016B
Authority
GB
United Kingdom
Prior art keywords
communication system
optical communication
optical
communication
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
Application number
GB8322904A
Other versions
GB8322904D0 (en
GB2268016A (en
Inventor
Paul Gallagher
David Martin Lush
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.)
Ferranti International PLC
Original Assignee
Ferranti International PLC
Ferranti 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 Ferranti International PLC, Ferranti PLC filed Critical Ferranti International PLC
Publication of GB8322904D0 publication Critical patent/GB8322904D0/en
Publication of GB2268016A publication Critical patent/GB2268016A/en
Application granted granted Critical
Publication of GB2268016B publication Critical patent/GB2268016B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
    • G01S3/784—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using a mosaic of detectors
    • 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
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Communication System (AREA)
GB8322904A 1983-08-06 1983-08-25 Optical communication system Expired - Fee Related GB2268016B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838321246A GB8321246D0 (en) 1983-08-06 1983-08-06 Optical communication system

Publications (3)

Publication Number Publication Date
GB8322904D0 GB8322904D0 (en) 1993-09-01
GB2268016A GB2268016A (en) 1993-12-22
GB2268016B true GB2268016B (en) 1994-05-11

Family

ID=10546930

Family Applications (2)

Application Number Title Priority Date Filing Date
GB838321246A Pending GB8321246D0 (en) 1983-08-06 1983-08-06 Optical communication system
GB8322904A Expired - Fee Related GB2268016B (en) 1983-08-06 1983-08-25 Optical communication system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838321246A Pending GB8321246D0 (en) 1983-08-06 1983-08-06 Optical communication system

Country Status (1)

Country Link
GB (2) GB8321246D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320151A (en) * 1996-11-12 1998-06-10 L F D Limited Covert infra-red communications system
GB9712200D0 (en) * 1997-06-12 1997-08-13 Robinson Alan W Vehicle commumicator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1173439A (en) * 1965-12-15 1969-12-10 Nippon Electric Co Improvements in or relating to Light Beam Communication Systems
GB1581151A (en) * 1976-05-21 1980-12-10 Telecommunications Sa One-way transmission system
WO1981002782A1 (en) * 1980-03-17 1981-10-01 Hughes Aircraft Co Apparatus and method for nighttime and low visibility alignment of communicators

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1173439A (en) * 1965-12-15 1969-12-10 Nippon Electric Co Improvements in or relating to Light Beam Communication Systems
GB1581151A (en) * 1976-05-21 1980-12-10 Telecommunications Sa One-way transmission system
WO1981002782A1 (en) * 1980-03-17 1981-10-01 Hughes Aircraft Co Apparatus and method for nighttime and low visibility alignment of communicators

Also Published As

Publication number Publication date
GB8322904D0 (en) 1993-09-01
GB8321246D0 (en) 1993-08-04
GB2268016A (en) 1993-12-22

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990825