JPS5698949A - Star communication network with wave length multiplex light - Google Patents

Star communication network with wave length multiplex light

Info

Publication number
JPS5698949A
JPS5698949A JP87580A JP87580A JPS5698949A JP S5698949 A JPS5698949 A JP S5698949A JP 87580 A JP87580 A JP 87580A JP 87580 A JP87580 A JP 87580A JP S5698949 A JPS5698949 A JP S5698949A
Authority
JP
Japan
Prior art keywords
station
circuit
wave length
light
reception
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.)
Pending
Application number
JP87580A
Other languages
Japanese (ja)
Inventor
Tomoo Kokkyo
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 JP87580A priority Critical patent/JPS5698949A/en
Publication of JPS5698949A publication Critical patent/JPS5698949A/en
Pending 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 to prevent the collision at station, by making the communications of a plurality at the same time by assigning different wave lengths to each station and storing the signal transmitted with respective length to the reception memory. CONSTITUTION:The communication network is constituted with 4 stations 100, 200, 300, 400 and star type light network 500. Each station has the transmission circuit T and the reception circuit R. The light circuit network 500 has the passive type star coupler 510 and optical fiber pairs 521-524 connecting each station. For example, in the station 200, the circuit T has LED524 outputting the light in wave length lambda2, and the circuit R brancher 211 branching the transmitted light via the optical fiber pair 522, BPF221-223, photo detectors 231-233, and reception memories 241-243. Thus, different wave length from each station is assigned to make a plurality of communications, and the signal transmitted with respective wave length is provided with the reception memory, allowing to prevent the collision at the stations.
JP87580A 1980-01-10 1980-01-10 Star communication network with wave length multiplex light Pending JPS5698949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP87580A JPS5698949A (en) 1980-01-10 1980-01-10 Star communication network with wave length multiplex light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP87580A JPS5698949A (en) 1980-01-10 1980-01-10 Star communication network with wave length multiplex light

Publications (1)

Publication Number Publication Date
JPS5698949A true JPS5698949A (en) 1981-08-08

Family

ID=11485838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP87580A Pending JPS5698949A (en) 1980-01-10 1980-01-10 Star communication network with wave length multiplex light

Country Status (1)

Country Link
JP (1) JPS5698949A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6390229A (en) * 1986-10-03 1988-04-21 Toshiba Corp Optical transmission system
JPS63211836A (en) * 1987-02-27 1988-09-02 Canon Inc Communication system
JPS6482834A (en) * 1987-09-25 1989-03-28 Canon Kk Optical communication system
JPH02272848A (en) * 1989-04-13 1990-11-07 Nec Corp Optical signal distribution/selection device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6390229A (en) * 1986-10-03 1988-04-21 Toshiba Corp Optical transmission system
JPS63211836A (en) * 1987-02-27 1988-09-02 Canon Inc Communication system
JPS6482834A (en) * 1987-09-25 1989-03-28 Canon Kk Optical communication system
JPH02272848A (en) * 1989-04-13 1990-11-07 Nec Corp Optical signal distribution/selection device

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