JPS5698948A - Optical star network communication system - Google Patents

Optical star network communication system

Info

Publication number
JPS5698948A
JPS5698948A JP87480A JP87480A JPS5698948A JP S5698948 A JPS5698948 A JP S5698948A JP 87480 A JP87480 A JP 87480A JP 87480 A JP87480 A JP 87480A JP S5698948 A JPS5698948 A JP S5698948A
Authority
JP
Japan
Prior art keywords
photo
communications
station
fed
wave length
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.)
Granted
Application number
JP87480A
Other languages
Japanese (ja)
Other versions
JPS5941333B2 (en
Inventor
Tomoo Kokkyo
Haruo Masuko
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55000874A priority Critical patent/JPS5941333B2/en
Publication of JPS5698948A publication Critical patent/JPS5698948A/en
Publication of JPS5941333B2 publication Critical patent/JPS5941333B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To enable a plurality of communications at the same time and to reduce the probability causing the collision of communications at each station, by transmitting lights through the selection of light of a plurality of wave lengths by each station. CONSTITUTION:When stations 1-4 make transmission, a transmission logic section 10 selects the wave length not used for the communication on the circuit network among the photo trasmitters 11, 12, 13 and drive either one of them. The output of the transmitter thus selected is fed to an optical fiber 21 via the photo synthesizer 14 and photo distributor 15. On the other hand, the light fed from the fiber 21 is fed to photo receivers 17-19 via the distributor 15 and brancher 16. Further, the section 20 can monitor the wave length used for communication in the circuit network, and in transmission, instruction is made to the section 10 so that the wave length not in used is selected. Thus, a plurality of communications can be made at the same time, and the probability for collision at each station can be reduced.
JP55000874A 1980-01-10 1980-01-10 Optical star network communication system Expired JPS5941333B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55000874A JPS5941333B2 (en) 1980-01-10 1980-01-10 Optical star network communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55000874A JPS5941333B2 (en) 1980-01-10 1980-01-10 Optical star network communication system

Publications (2)

Publication Number Publication Date
JPS5698948A true JPS5698948A (en) 1981-08-08
JPS5941333B2 JPS5941333B2 (en) 1984-10-06

Family

ID=11485809

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55000874A Expired JPS5941333B2 (en) 1980-01-10 1980-01-10 Optical star network communication system

Country Status (1)

Country Link
JP (1) JPS5941333B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129847A (en) * 1981-10-08 1983-08-03 ハインリツヒ−ヘルツ−インステイテユ−ト・フユ−ル・ナツハリヒテンテヒニ−ク・ベルリン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Communication network with optical channel
JPS59183554A (en) * 1983-04-04 1984-10-18 Nec Corp System for detecting collision of optical network of bus structure
JPS63316957A (en) * 1987-06-05 1988-12-26 エイ・ティ・アンド・ティ・コーポレーション Method and equipment for transmission in extra-high speed optical local area network
EP0438153A2 (en) * 1990-01-19 1991-07-24 Canon Kabushiki Kaisha Optical communication method and optical communication system
JP2009049745A (en) * 2007-08-21 2009-03-05 Nippon Telegr & Teleph Corp <Ntt> Transmitting/receiving wavelength information obtaining method and optical transceiver

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6228718A (en) * 1985-07-29 1987-02-06 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Liquid crystal display unit
JPS6376821U (en) * 1986-11-07 1988-05-21
JPH0545039Y2 (en) * 1987-10-19 1993-11-16
JPH049981U (en) * 1990-05-14 1992-01-28

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58129847A (en) * 1981-10-08 1983-08-03 ハインリツヒ−ヘルツ−インステイテユ−ト・フユ−ル・ナツハリヒテンテヒニ−ク・ベルリン・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Communication network with optical channel
JPH0414531B2 (en) * 1981-10-08 1992-03-13 Hainritsuhi Herutsu Inst Fuyuuru Natsuharihitentehiniiku Berurin Gmbh
JPS59183554A (en) * 1983-04-04 1984-10-18 Nec Corp System for detecting collision of optical network of bus structure
JPS63316957A (en) * 1987-06-05 1988-12-26 エイ・ティ・アンド・ティ・コーポレーション Method and equipment for transmission in extra-high speed optical local area network
EP0438153A2 (en) * 1990-01-19 1991-07-24 Canon Kabushiki Kaisha Optical communication method and optical communication system
JP2009049745A (en) * 2007-08-21 2009-03-05 Nippon Telegr & Teleph Corp <Ntt> Transmitting/receiving wavelength information obtaining method and optical transceiver

Also Published As

Publication number Publication date
JPS5941333B2 (en) 1984-10-06

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