JPS57154955A - Optical broadcast communication network - Google Patents

Optical broadcast communication network

Info

Publication number
JPS57154955A
JPS57154955A JP56040144A JP4014481A JPS57154955A JP S57154955 A JPS57154955 A JP S57154955A JP 56040144 A JP56040144 A JP 56040144A JP 4014481 A JP4014481 A JP 4014481A JP S57154955 A JPS57154955 A JP S57154955A
Authority
JP
Japan
Prior art keywords
coupler
communication network
star
pair
broadcast 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.)
Granted
Application number
JP56040144A
Other languages
Japanese (ja)
Other versions
JPS6351583B2 (en
Inventor
Yoichi Sato
Fumio Akashi
Koichi Asatani
Kiyoshi Nosu
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.)
NEC Corp
Nippon Telegraph and Telephone Corp
Original Assignee
NEC Corp
Nippon Telegraph and Telephone Corp
Nippon 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 NEC Corp, Nippon Telegraph and Telephone Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP56040144A priority Critical patent/JPS57154955A/en
Publication of JPS57154955A publication Critical patent/JPS57154955A/en
Publication of JPS6351583B2 publication Critical patent/JPS6351583B2/ja
Granted 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
    • H04B10/27—Arrangements for networking

Landscapes

  • Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To avoid the echo produced by a coupling line and to expand an optical broadcast communication network in an easy way, by expanding the constitution of the said communication network with connection of plural star couplers. CONSTITUTION:The n units of terminals 1-1-1-n are connected to n pieces of output optical fibers of a star coupler 1' as well as to n pieces of input optical fibers of a coupler 1 of a star coupler pair 1. The terminal 2-1-2-n of a star coupler 2 are connected in the same connecting way as mentioned above. The pair of 1 and 1' are connected to the pair of 2 and 2' by supplying the output optical fiber of the coupler 1 to the coupler 2' and supplying the output optical fiber of the coupler 2 to the coupler 1' respectively.
JP56040144A 1981-03-19 1981-03-19 Optical broadcast communication network Granted JPS57154955A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56040144A JPS57154955A (en) 1981-03-19 1981-03-19 Optical broadcast communication network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56040144A JPS57154955A (en) 1981-03-19 1981-03-19 Optical broadcast communication network

Publications (2)

Publication Number Publication Date
JPS57154955A true JPS57154955A (en) 1982-09-24
JPS6351583B2 JPS6351583B2 (en) 1988-10-14

Family

ID=12572573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56040144A Granted JPS57154955A (en) 1981-03-19 1981-03-19 Optical broadcast communication network

Country Status (1)

Country Link
JP (1) JPS57154955A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58166837A (en) * 1982-03-29 1983-10-03 Toshiba Corp Optical communication system
JPS5983426A (en) * 1982-11-05 1984-05-14 Nec Corp Optical network system
JPS59153344A (en) * 1983-02-21 1984-09-01 Nec Corp Optical broadcast communication network
US4641371A (en) * 1985-01-16 1987-02-03 Westinghouse Electric Corp. Multi-star fiber optic network
US4723309A (en) * 1982-11-05 1988-02-02 Nec Corporation Optical network system of bus architecture capable of rapidly detecting collision at each communication station
JPH02294124A (en) * 1989-05-09 1990-12-05 Furukawa Electric Co Ltd:The Optical wiring system
JPH03179940A (en) * 1989-12-08 1991-08-05 Hitachi Cable Ltd Method and device for inter-plural point bidirectional transmission
JPH053457A (en) * 1990-12-28 1993-01-08 Fuji Xerox Co Ltd Star coupler and optical communication network

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5763944A (en) * 1980-10-06 1982-04-17 Nec Corp Constitution system for optical fiber data bus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5763944A (en) * 1980-10-06 1982-04-17 Nec Corp Constitution system for optical fiber data bus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58166837A (en) * 1982-03-29 1983-10-03 Toshiba Corp Optical communication system
JPS5983426A (en) * 1982-11-05 1984-05-14 Nec Corp Optical network system
US4723309A (en) * 1982-11-05 1988-02-02 Nec Corporation Optical network system of bus architecture capable of rapidly detecting collision at each communication station
JPS59153344A (en) * 1983-02-21 1984-09-01 Nec Corp Optical broadcast communication network
US4641371A (en) * 1985-01-16 1987-02-03 Westinghouse Electric Corp. Multi-star fiber optic network
JPH02294124A (en) * 1989-05-09 1990-12-05 Furukawa Electric Co Ltd:The Optical wiring system
JPH03179940A (en) * 1989-12-08 1991-08-05 Hitachi Cable Ltd Method and device for inter-plural point bidirectional transmission
JPH053457A (en) * 1990-12-28 1993-01-08 Fuji Xerox Co Ltd Star coupler and optical communication network

Also Published As

Publication number Publication date
JPS6351583B2 (en) 1988-10-14

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