GB2014723A - Two-way communication using a single light guide - Google Patents

Two-way communication using a single light guide

Info

Publication number
GB2014723A
GB2014723A GB7904343A GB7904343A GB2014723A GB 2014723 A GB2014723 A GB 2014723A GB 7904343 A GB7904343 A GB 7904343A GB 7904343 A GB7904343 A GB 7904343A GB 2014723 A GB2014723 A GB 2014723A
Authority
GB
United Kingdom
Prior art keywords
light
light guide
guide
emitting diode
emitting
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.)
Withdrawn
Application number
GB7904343A
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB7904343A priority Critical patent/GB2014723A/en
Publication of GB2014723A publication Critical patent/GB2014723A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H04B10/40—Transceivers
    • H04B10/43—Transceivers using a single component as both light source and receiver, e.g. using a photoemitter as a photoreceiver

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

A two-way photoelectrical information transmission system comprises a single light guide 3, a first direct band gap semiconductor light-emitting diode D1 optically coupled to one end of the light guide, a second direct band semiconductor light-emitting guide D1 optically coupled to the other end of the light guide, means TR1 for stimulating one light-emitting diode to emit a pulse of light, means IC1 for detecting a change in the state of the other light- emitting diode in response to light incident upon it from the light guide, and means (not shown) for causing the light-emitting diodes to alternate in function. Diodes D1 are isolated from leakage currents and from the capacitance of transistors TR1 when receiving light by D2, R2. In an alternative circuit, the detection circuitry includes a current to voltage convertor between each diode D1 and its comparator IC1. <IMAGE>
GB7904343A 1978-02-15 1979-02-07 Two-way communication using a single light guide Withdrawn GB2014723A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7904343A GB2014723A (en) 1978-02-15 1979-02-07 Two-way communication using a single light guide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB602378 1978-02-15
GB7904343A GB2014723A (en) 1978-02-15 1979-02-07 Two-way communication using a single light guide

Publications (1)

Publication Number Publication Date
GB2014723A true GB2014723A (en) 1979-08-30

Family

ID=26240339

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7904343A Withdrawn GB2014723A (en) 1978-02-15 1979-02-07 Two-way communication using a single light guide

Country Status (1)

Country Link
GB (1) GB2014723A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446567A1 (en) * 1979-01-12 1980-08-08 Deere & Co ELECTRO-OPTICAL SYSTEM WITH CONDITIONING CIRCUIT OF OPTICAL SIGNALS TRANSMITTED BY FIBERS
US5027434A (en) * 1987-10-24 1991-06-25 Ke Kommunikations-Elektronik Gmbh & Co. Apparatus for bidirectional transmission of optical signals
US5317441A (en) * 1991-10-21 1994-05-31 Advanced Micro Devices, Inc. Transceiver for full duplex signalling on a fiber optic cable
US5602665A (en) * 1994-12-06 1997-02-11 Nec Corporation Optical transmitting/receiving apparatus for bidirectional communication systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446567A1 (en) * 1979-01-12 1980-08-08 Deere & Co ELECTRO-OPTICAL SYSTEM WITH CONDITIONING CIRCUIT OF OPTICAL SIGNALS TRANSMITTED BY FIBERS
US5027434A (en) * 1987-10-24 1991-06-25 Ke Kommunikations-Elektronik Gmbh & Co. Apparatus for bidirectional transmission of optical signals
US5317441A (en) * 1991-10-21 1994-05-31 Advanced Micro Devices, Inc. Transceiver for full duplex signalling on a fiber optic cable
US5602665A (en) * 1994-12-06 1997-02-11 Nec Corporation Optical transmitting/receiving apparatus for bidirectional communication systems

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)