JPS51123002A - Optical communications system - Google Patents

Optical communications system

Info

Publication number
JPS51123002A
JPS51123002A JP50048060A JP4806075A JPS51123002A JP S51123002 A JPS51123002 A JP S51123002A JP 50048060 A JP50048060 A JP 50048060A JP 4806075 A JP4806075 A JP 4806075A JP S51123002 A JPS51123002 A JP S51123002A
Authority
JP
Japan
Prior art keywords
communications system
optical communications
signal transmission
transmission
surveillance
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
JP50048060A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5747580B2 (enExample
Inventor
Shigetoki Sugimoto
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
Original Assignee
NEC 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 Electric Co Ltd filed Critical NEC Corp
Priority to JP50048060A priority Critical patent/JPS51123002A/ja
Publication of JPS51123002A publication Critical patent/JPS51123002A/ja
Publication of JPS5747580B2 publication Critical patent/JPS5747580B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Optical Communication System (AREA)
JP50048060A 1975-04-18 1975-04-18 Optical communications system Granted JPS51123002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50048060A JPS51123002A (en) 1975-04-18 1975-04-18 Optical communications system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50048060A JPS51123002A (en) 1975-04-18 1975-04-18 Optical communications system

Publications (2)

Publication Number Publication Date
JPS51123002A true JPS51123002A (en) 1976-10-27
JPS5747580B2 JPS5747580B2 (enExample) 1982-10-09

Family

ID=12792790

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50048060A Granted JPS51123002A (en) 1975-04-18 1975-04-18 Optical communications system

Country Status (1)

Country Link
JP (1) JPS51123002A (enExample)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142101A (en) * 1977-05-18 1978-12-11 Oki Electric Ind Co Ltd Repeater monitor circuit
JPS5775040A (en) * 1980-10-28 1982-05-11 Fujitsu Ltd Supervisory system for optical communication loop network
FR2527028A1 (fr) * 1982-05-14 1983-11-18 Lignes Telegraph Telephon Procede de controle du fonctionnement d'un recepteur dans un systeme de transmission, dispositif pour la mise en oeuvre de ce procede et utilisation d'un tel procede
JPS6084034A (ja) * 1983-06-02 1985-05-13 Nec Corp 光ａｇｃ方式
JPH01254031A (ja) * 1988-04-04 1989-10-11 Sharp Corp 信号伝送装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53142101A (en) * 1977-05-18 1978-12-11 Oki Electric Ind Co Ltd Repeater monitor circuit
JPS5775040A (en) * 1980-10-28 1982-05-11 Fujitsu Ltd Supervisory system for optical communication loop network
FR2527028A1 (fr) * 1982-05-14 1983-11-18 Lignes Telegraph Telephon Procede de controle du fonctionnement d'un recepteur dans un systeme de transmission, dispositif pour la mise en oeuvre de ce procede et utilisation d'un tel procede
JPS6084034A (ja) * 1983-06-02 1985-05-13 Nec Corp 光ａｇｃ方式
JPH01254031A (ja) * 1988-04-04 1989-10-11 Sharp Corp 信号伝送装置

Also Published As

Publication number Publication date
JPS5747580B2 (enExample) 1982-10-09

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